4826 lines
No EOL
185 KiB
C#
4826 lines
No EOL
185 KiB
C#
#define SQLITE_MAX_EXPR_DEPTH
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using System;
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using System.Diagnostics;
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using System.Text;
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using Bitmask = System.UInt64;
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using i16 = System.Int16;
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using i64 = System.Int64;
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using sqlite3_int64 = System.Int64;
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using u8 = System.Byte;
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using u16 = System.UInt16;
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using u32 = System.UInt32;
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using u64 = System.UInt64;
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#if !SQLITE_MAX_VARIABLE_NUMBER
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using ynVar = System.Int16;
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#else
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using ynVar = System.Int32;
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#endif
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/*
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** The yDbMask datatype for the bitmask of all attached databases.
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*/
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#if SQLITE_MAX_ATTACHED//>30
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// typedef sqlite3_uint64 yDbMask;
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using yDbMask = System.Int64;
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#else
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// typedef unsigned int yDbMask;
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using yDbMask = System.Int32;
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#endif
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namespace Community.CsharpSqlite
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{
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using sqlite3_value = Sqlite3.Mem;
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public partial class Sqlite3
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{
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/*
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** 2001 September 15
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**
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** The author disclaims copyright to this source code. In place of
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** a legal notice, here is a blessing:
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**
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** May you do good and not evil.
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** May you find forgiveness for yourself and forgive others.
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** May you share freely, never taking more than you give.
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**
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*************************************************************************
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** Internal interface definitions for SQLite.
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**
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*************************************************************************
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** Included in SQLite3 port to C#-SQLite; 2008 Noah B Hart
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** C#-SQLite is an independent reimplementation of the SQLite software library
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**
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** SQLITE_SOURCE_ID: 2011-06-23 19:49:22 4374b7e83ea0a3fbc3691f9c0c936272862f32f2
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**
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*************************************************************************
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*/
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//#if !_SQLITEINT_H_
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//#define _SQLITEINT_H_
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/*
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** These #defines should enable >2GB file support on POSIX if the
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** underlying operating system supports it. If the OS lacks
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** large file support, or if the OS is windows, these should be no-ops.
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**
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** Ticket #2739: The _LARGEFILE_SOURCE macro must appear before any
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** system #includes. Hence, this block of code must be the very first
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** code in all source files.
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**
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** Large file support can be disabled using the -DSQLITE_DISABLE_LFS switch
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** on the compiler command line. This is necessary if you are compiling
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** on a recent machine (ex: Red Hat 7.2) but you want your code to work
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** on an older machine (ex: Red Hat 6.0). If you compile on Red Hat 7.2
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** without this option, LFS is enable. But LFS does not exist in the kernel
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** in Red Hat 6.0, so the code won't work. Hence, for maximum binary
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** portability you should omit LFS.
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**
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** Similar is true for Mac OS X. LFS is only supported on Mac OS X 9 and later.
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*/
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//#if !SQLITE_DISABLE_LFS
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//# define _LARGE_FILE 1
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//# ifndef _FILE_OFFSET_BITS
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//# define _FILE_OFFSET_BITS 64
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//# endif
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//# define _LARGEFILE_SOURCE 1
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//#endif
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/*
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** Include the configuration header output by 'configure' if we're using the
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** autoconf-based build
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*/
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#if _HAVE_SQLITE_CONFIG_H
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//#include "config.h"
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#endif
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//#include "sqliteLimit.h"
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/* Disable nuisance warnings on Borland compilers */
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//#if (__BORLANDC__)
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//#pragma warn -rch /* unreachable code */
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//#pragma warn -ccc /* Condition is always true or false */
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//#pragma warn -aus /* Assigned value is never used */
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//#pragma warn -csu /* Comparing signed and unsigned */
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//#pragma warn -spa /* Suspicious pointer arithmetic */
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//#endif
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/* Needed for various definitions... */
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//#if !_GNU_SOURCE
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//#define _GNU_SOURCE
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//#endif
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/*
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** Include standard header files as necessary
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*/
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#if HAVE_STDINT_H
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//#include <stdint.h>
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#endif
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#if HAVE_INTTYPES_H
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//#include <inttypes.h>
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#endif
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/*
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** The number of samples of an index that SQLite takes in order to
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** construct a histogram of the table content when running ANALYZE
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** and with SQLITE_ENABLE_STAT2
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*/
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//#define SQLITE_INDEX_SAMPLES 10
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public const int SQLITE_INDEX_SAMPLES = 10;
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/*
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** The following macros are used to cast pointers to integers and
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** integers to pointers. The way you do this varies from one compiler
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** to the next, so we have developed the following set of #if statements
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** to generate appropriate macros for a wide range of compilers.
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**
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** The correct "ANSI" way to do this is to use the intptr_t type.
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** Unfortunately, that typedef is not available on all compilers, or
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** if it is available, it requires an #include of specific headers
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** that vary from one machine to the next.
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**
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** Ticket #3860: The llvm-gcc-4.2 compiler from Apple chokes on
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** the ((void)&((char)0)[X]) construct. But MSVC chokes on ((void)(X)).
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** So we have to define the macros in different ways depending on the
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** compiler.
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*/
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//#if (__PTRDIFF_TYPE__) /* This case should work for GCC */
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//# define SQLITE_INT_TO_PTR(X) ((void)(__PTRDIFF_TYPE__)(X))
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//# define SQLITE_PTR_TO_INT(X) ((int)(__PTRDIFF_TYPE__)(X))
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//#elif !defined(__GNUC__) /* Works for compilers other than LLVM */
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//# define SQLITE_INT_TO_PTR(X) ((void)&((char)0)[X])
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//# define SQLITE_PTR_TO_INT(X) ((int)(((char)X)-(char)0))
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//#elif defined(HAVE_STDINT_H) /* Use this case if we have ANSI headers */
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//# define SQLITE_INT_TO_PTR(X) ((void)(intptr_t)(X))
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//# define SQLITE_PTR_TO_INT(X) ((int)(intptr_t)(X))
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//#else /* Generates a warning - but it always works */
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//# define SQLITE_INT_TO_PTR(X) ((void)(X))
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//# define SQLITE_PTR_TO_INT(X) ((int)(X))
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//#endif
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/*
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** The SQLITE_THREADSAFE macro must be defined as 0, 1, or 2.
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** 0 means mutexes are permanently disable and the library is never
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** threadsafe. 1 means the library is serialized which is the highest
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** level of threadsafety. 2 means the libary is multithreaded - multiple
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** threads can use SQLite as long as no two threads try to use the same
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** database connection at the same time.
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**
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** Older versions of SQLite used an optional THREADSAFE macro.
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** We support that for legacy.
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*/
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#if !SQLITE_THREADSAFE
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//# define SQLITE_THREADSAFE 2
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const int SQLITE_THREADSAFE = 2;
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#else
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private const int SQLITE_THREADSAFE = 2; /* IMP: R-07272-22309 */
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#endif
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/*
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** The SQLITE_DEFAULT_MEMSTATUS macro must be defined as either 0 or 1.
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** It determines whether or not the features related to
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** SQLITE_CONFIG_MEMSTATUS are available by default or not. This value can
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** be overridden at runtime using the sqlite3_config() API.
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*/
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#if !(SQLITE_DEFAULT_MEMSTATUS)
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//# define SQLITE_DEFAULT_MEMSTATUS 1
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private const int SQLITE_DEFAULT_MEMSTATUS = 0;
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#else
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const int SQLITE_DEFAULT_MEMSTATUS = 1;
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#endif
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/*
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** Exactly one of the following macros must be defined in order to
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** specify which memory allocation subsystem to use.
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**
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** SQLITE_SYSTEM_MALLOC // Use normal system malloc()
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** SQLITE_MEMDEBUG // Debugging version of system malloc()
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**
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** (Historical note: There used to be several other options, but we've
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** pared it down to just these two.)
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**
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** If none of the above are defined, then set SQLITE_SYSTEM_MALLOC as
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** the default.
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*/
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//#if (SQLITE_SYSTEM_MALLOC)+defined(SQLITE_MEMDEBUG)+\
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//# error "At most one of the following compile-time configuration options\
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// is allows: SQLITE_SYSTEM_MALLOC, SQLITE_MEMDEBUG"
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//#endif
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//#if (SQLITE_SYSTEM_MALLOC)+defined(SQLITE_MEMDEBUG)+\
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//# define SQLITE_SYSTEM_MALLOC 1
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//#endif
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/*
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** If SQLITE_MALLOC_SOFT_LIMIT is not zero, then try to keep the
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** sizes of memory allocations below this value where possible.
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*/
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#if !(SQLITE_MALLOC_SOFT_LIMIT)
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private const int SQLITE_MALLOC_SOFT_LIMIT = 1024;
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#endif
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/*
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** We need to define _XOPEN_SOURCE as follows in order to enable
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** recursive mutexes on most Unix systems. But Mac OS X is different.
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** The _XOPEN_SOURCE define causes problems for Mac OS X we are told,
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** so it is omitted there. See ticket #2673.
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**
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** Later we learn that _XOPEN_SOURCE is poorly or incorrectly
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** implemented on some systems. So we avoid defining it at all
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** if it is already defined or if it is unneeded because we are
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** not doing a threadsafe build. Ticket #2681.
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**
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** See also ticket #2741.
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*/
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#if !_XOPEN_SOURCE && !__DARWIN__ && !__APPLE__ && SQLITE_THREADSAFE
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private const int _XOPEN_SOURCE = 500;//#define _XOPEN_SOURCE 500 /* Needed to enable pthread recursive mutexes */
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#endif
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/*
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** The TCL headers are only needed when compiling the TCL bindings.
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*/
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#if SQLITE_TCL || TCLSH
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//# include <tcl.h>
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#endif
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/*
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** Many people are failing to set -DNDEBUG=1 when compiling SQLite.
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** Setting NDEBUG makes the code smaller and run faster. So the following
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** lines are added to automatically set NDEBUG unless the -DSQLITE_DEBUG=1
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** option is set. Thus NDEBUG becomes an opt-in rather than an opt-out
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** feature.
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*/
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#if !NDEBUG && !SQLITE_DEBUG
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const int NDEBUG = 1;//# define NDEBUG 1
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#endif
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/*
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** The testcase() macro is used to aid in coverage testing. When
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** doing coverage testing, the condition inside the argument to
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** testcase() must be evaluated both true and false in order to
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** get full branch coverage. The testcase() macro is inserted
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** to help ensure adequate test coverage in places where simple
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** condition/decision coverage is inadequate. For example, testcase()
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** can be used to make sure boundary values are tested. For
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** bitmask tests, testcase() can be used to make sure each bit
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** is significant and used at least once. On switch statements
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** where multiple cases go to the same block of code, testcase()
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** can insure that all cases are evaluated.
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**
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*/
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#if SQLITE_COVERAGE_TEST
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void sqlite3Coverage(int);
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//# define testcase(X) if( X ){ sqlite3Coverage(__LINE__); }
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#else
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//# define testcase(X)
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private static void testcase<T>(T X)
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{
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}
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#endif
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/*
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** The TESTONLY macro is used to enclose variable declarations or
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** other bits of code that are needed to support the arguments
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** within testcase() and Debug.Assert() macros.
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*/
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#if !NDEBUG || SQLITE_COVERAGE_TEST
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//# define TESTONLY(X) X
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// -- Need workaround for C#, since inline macros don't exist
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#else
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//# define TESTONLY(X)
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#endif
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/*
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** Sometimes we need a small amount of code such as a variable initialization
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** to setup for a later Debug.Assert() statement. We do not want this code to
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** appear when Debug.Assert() is disabled. The following macro is therefore
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** used to contain that setup code. The "VVA" acronym stands for
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** "Verification, Validation, and Accreditation". In other words, the
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** code within VVA_ONLY() will only run during verification processes.
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*/
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#if !NDEBUG
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//# define VVA_ONLY(X) X
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#else
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//# define VVA_ONLY(X)
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#endif
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/*
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** The ALWAYS and NEVER macros surround boolean expressions which
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** are intended to always be true or false, respectively. Such
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** expressions could be omitted from the code completely. But they
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** are included in a few cases in order to enhance the resilience
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** of SQLite to unexpected behavior - to make the code "self-healing"
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** or "ductile" rather than being "brittle" and crashing at the first
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** hint of unplanned behavior.
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**
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** In other words, ALWAYS and NEVER are added for defensive code.
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**
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** When doing coverage testing ALWAYS and NEVER are hard-coded to
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** be true and false so that the unreachable code then specify will
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** not be counted as untested code.
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*/
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#if SQLITE_COVERAGE_TEST
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//# define ALWAYS(X) (1)
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//# define NEVER(X) (0)
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#elif !NDEBUG
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//# define ALWAYS(X) ((X)?1:(Debug.Assert(0),0))
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private static bool ALWAYS(bool X)
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{
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if (X != true)
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Debug.Assert(false);
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return true;
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}
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private static int ALWAYS(int X)
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{
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if (X == 0)
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Debug.Assert(false);
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return 1;
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}
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private static bool ALWAYS<T>(T X)
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{
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if (X == null)
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Debug.Assert(false);
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return true;
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}
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//# define NEVER(X) ((X)?(Debug.Assert(0),1):0)
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private static bool NEVER(bool X)
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{
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if (X == true)
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Debug.Assert(false);
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return false;
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}
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private static byte NEVER(byte X)
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{
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if (X != 0)
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Debug.Assert(false);
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return 0;
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}
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private static int NEVER(int X)
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{
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if (X != 0)
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Debug.Assert(false);
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return 0;
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}
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private static bool NEVER<T>(T X)
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{
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if (X != null)
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Debug.Assert(false);
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return false;
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}
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#else
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//# define ALWAYS(X) (X)
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static bool ALWAYS(bool X) { return X; }
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static byte ALWAYS(byte X) { return X; }
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static int ALWAYS(int X) { return X; }
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static bool ALWAYS<T>( T X ) { return true; }
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//# define NEVER(X) (X)
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static bool NEVER(bool X) { return X; }
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static byte NEVER(byte X) { return X; }
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static int NEVER(int X) { return X; }
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static bool NEVER<T>(T X) { return false; }
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#endif
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/*
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** Return true (non-zero) if the input is a integer that is too large
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** to fit in 32-bits. This macro is used inside of various testcase()
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** macros to verify that we have tested SQLite for large-file support.
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*/
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private static bool IS_BIG_INT(i64 X)
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{
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return (((X) & ~(i64)0xffffffff) != 0);
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}//#define IS_BIG_INT(X) (((X)&~(i64)0xffffffff)!=0)
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/*
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** The macro unlikely() is a hint that surrounds a boolean
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** expression that is usually false. Macro likely() surrounds
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** a boolean expression that is usually true. GCC is able to
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** use these hints to generate better code, sometimes.
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*/
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#if (__GNUC__) && FALSE
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//# define likely(X) __builtin_expect((X),1)
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//# define unlikely(X) __builtin_expect((X),0)
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#else
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//# define likely(X) !!(X)
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private static bool likely(bool X)
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{
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return !!X;
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}
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//# define unlikely(X) !!(X)
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private static bool unlikely(bool X)
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{
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return !!X;
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}
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|
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#endif
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|
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//#include "sqlite3.h"
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//#include "hash.h"
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//#include "parse.h"
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//#include <stdio.h>
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//#include <stdlib.h>
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|
//#include <string.h>
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//#include <assert.h>
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//#include <stddef.h>
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|
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/*
|
|
** If compiling for a processor that lacks floating point support,
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** substitute integer for floating-point
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*/
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#if SQLITE_OMIT_FLOATING_POINT
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//# define double sqlite_int64
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//# define float sqlite_int64
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//# define LONGDOUBLE_TYPE sqlite_int64
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//#if !SQLITE_BIG_DBL
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//# define SQLITE_BIG_DBL (((sqlite3_int64)1)<<50)
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//# endif
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//# define SQLITE_OMIT_DATETIME_FUNCS 1
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//# define SQLITE_OMIT_TRACE 1
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|
//# undef SQLITE_MIXED_ENDIAN_64BIT_FLOAT
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//# undef SQLITE_HAVE_ISNAN
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|
#endif
|
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#if !SQLITE_BIG_DBL
|
|
private const double SQLITE_BIG_DBL = (((sqlite3_int64)1) << 60);//# define SQLITE_BIG_DBL (1e99)
|
|
#endif
|
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|
|
/*
|
|
** OMIT_TEMPDB is set to 1 if SQLITE_OMIT_TEMPDB is defined, or 0
|
|
** afterward. Having this macro allows us to cause the C compiler
|
|
** to omit code used by TEMP tables without messy #if !statements.
|
|
*/
|
|
#if SQLITE_OMIT_TEMPDB
|
|
//#define OMIT_TEMPDB 1
|
|
#else
|
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private static int OMIT_TEMPDB = 0;
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#endif
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|
|
/*
|
|
** The "file format" number is an integer that is incremented whenever
|
|
** the VDBE-level file format changes. The following macros define the
|
|
** the default file format for new databases and the maximum file format
|
|
** that the library can read.
|
|
*/
|
|
static public int SQLITE_MAX_FILE_FORMAT = 4;//#define SQLITE_MAX_FILE_FORMAT 4
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|
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//#if !SQLITE_DEFAULT_FILE_FORMAT
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private static int SQLITE_DEFAULT_FILE_FORMAT = 1;//# define SQLITE_DEFAULT_FILE_FORMAT 1
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|
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//#endif
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|
|
/*
|
|
** Determine whether triggers are recursive by default. This can be
|
|
** changed at run-time using a pragma.
|
|
*/
|
|
#if !SQLITE_DEFAULT_RECURSIVE_TRIGGERS
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//# define SQLITE_DEFAULT_RECURSIVE_TRIGGERS 0
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static public bool SQLITE_DEFAULT_RECURSIVE_TRIGGERS = false;
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#else
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static public bool SQLITE_DEFAULT_RECURSIVE_TRIGGERS = true;
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#endif
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|
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/*
|
|
** Provide a default value for SQLITE_TEMP_STORE in case it is not specified
|
|
** on the command-line
|
|
*/
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|
|
//#if !SQLITE_TEMP_STORE
|
|
private static int SQLITE_TEMP_STORE = 1;//#define SQLITE_TEMP_STORE 1
|
|
|
|
//#endif
|
|
|
|
/*
|
|
** GCC does not define the offsetof() macro so we'll have to do it
|
|
** ourselves.
|
|
*/
|
|
#if !offsetof
|
|
//#define offsetof(STRUCTURE,FIELD) ((int)((char)&((STRUCTURE)0)->FIELD))
|
|
#endif
|
|
|
|
/*
|
|
** Check to see if this machine uses EBCDIC. (Yes, believe it or
|
|
** not, there are still machines out there that use EBCDIC.)
|
|
*/
|
|
#if FALSE //'A' == '\301'
|
|
//# define SQLITE_EBCDIC 1
|
|
#else
|
|
private const int SQLITE_ASCII = 1;//#define SQLITE_ASCII 1
|
|
#endif
|
|
|
|
/*
|
|
** Integers of known sizes. These typedefs might change for architectures
|
|
** where the sizes very. Preprocessor macros are available so that the
|
|
** types can be conveniently redefined at compile-type. Like this:
|
|
**
|
|
** cc '-Du32PTR_TYPE=long long int' ...
|
|
*/
|
|
//#if !u32_TYPE
|
|
//# ifdef HAVE_u32_T
|
|
//# define u32_TYPE u32_t
|
|
//# else
|
|
//# define u32_TYPE unsigned int
|
|
//# endif
|
|
//#endif
|
|
//#if !u3216_TYPE
|
|
//# ifdef HAVE_u3216_T
|
|
//# define u3216_TYPE u3216_t
|
|
//# else
|
|
//# define u3216_TYPE unsigned short int
|
|
//# endif
|
|
//#endif
|
|
//#if !INT16_TYPE
|
|
//# ifdef HAVE_INT16_T
|
|
//# define INT16_TYPE int16_t
|
|
//# else
|
|
//# define INT16_TYPE short int
|
|
//# endif
|
|
//#endif
|
|
//#if !u328_TYPE
|
|
//# ifdef HAVE_u328_T
|
|
//# define u328_TYPE u328_t
|
|
//# else
|
|
//# define u328_TYPE unsigned char
|
|
//# endif
|
|
//#endif
|
|
//#if !INT8_TYPE
|
|
//# ifdef HAVE_INT8_T
|
|
//# define INT8_TYPE int8_t
|
|
//# else
|
|
//# define INT8_TYPE signed char
|
|
//# endif
|
|
//#endif
|
|
//#if !LONGDOUBLE_TYPE
|
|
//# define LONGDOUBLE_TYPE long double
|
|
//#endif
|
|
//typedef sqlite_int64 i64; /* 8-byte signed integer */
|
|
//typedef sqlite_u3264 u64; /* 8-byte unsigned integer */
|
|
//typedef u32_TYPE u32; /* 4-byte unsigned integer */
|
|
//typedef u3216_TYPE u16; /* 2-byte unsigned integer */
|
|
//typedef INT16_TYPE i16; /* 2-byte signed integer */
|
|
//typedef u328_TYPE u8; /* 1-byte unsigned integer */
|
|
//typedef INT8_TYPE i8; /* 1-byte signed integer */
|
|
|
|
/*
|
|
** SQLITE_MAX_U32 is a u64 constant that is the maximum u64 value
|
|
** that can be stored in a u32 without loss of data. The value
|
|
** is 0x00000000ffffffff. But because of quirks of some compilers, we
|
|
** have to specify the value in the less intuitive manner shown:
|
|
*/
|
|
|
|
//#define SQLITE_MAX_U32 ((((u64)1)<<32)-1)
|
|
private const u32 SQLITE_MAX_U32 = (u32)((((u64)1) << 32) - 1);
|
|
|
|
/*
|
|
** Macros to determine whether the machine is big or little endian,
|
|
** evaluated at runtime.
|
|
*/
|
|
#if SQLITE_AMALGAMATION
|
|
//const int sqlite3one = 1;
|
|
#else
|
|
private const bool sqlite3one = true;
|
|
#endif
|
|
#if i386 || __i386__ || _M_IX86
|
|
const int ;//#define SQLITE_BIGENDIAN 0
|
|
const int ;//#define SQLITE_LITTLEENDIAN 1
|
|
const int ;//#define SQLITE_UTF16NATIVE SQLITE_UTF16LE
|
|
#else
|
|
private static u8 SQLITE_BIGENDIAN = 0;//#define SQLITE_BIGENDIAN (*(char )(&sqlite3one)==0)
|
|
private static u8 SQLITE_LITTLEENDIAN = 1;//#define SQLITE_LITTLEENDIAN (*(char )(&sqlite3one)==1)
|
|
private static u8 SQLITE_UTF16NATIVE = (SQLITE_BIGENDIAN != 0 ? SQLITE_UTF16BE : SQLITE_UTF16LE);//#define SQLITE_UTF16NATIVE (SQLITE_BIGENDIAN?SQLITE_UTF16BE:SQLITE_UTF16LE)
|
|
#endif
|
|
|
|
/*
|
|
** Constants for the largest and smallest possible 64-bit signed integers.
|
|
** These macros are designed to work correctly on both 32-bit and 64-bit
|
|
** compilers.
|
|
*/
|
|
|
|
//#define LARGEST_INT64 (0xffffffff|(((i64)0x7fffffff)<<32))
|
|
//#define SMALLEST_INT64 (((i64)-1) - LARGEST_INT64)
|
|
private const i64 LARGEST_INT64 = i64.MaxValue;//( 0xffffffff | ( ( (i64)0x7fffffff ) << 32 ) );
|
|
|
|
private const i64 SMALLEST_INT64 = i64.MinValue;//( ( ( i64 ) - 1 ) - LARGEST_INT64 );
|
|
|
|
/*
|
|
** Round up a number to the next larger multiple of 8. This is used
|
|
** to force 8-byte alignment on 64-bit architectures.
|
|
*/
|
|
|
|
//#define ROUND8(x) (((x)+7)&~7)
|
|
private static int ROUND8(int x)
|
|
{
|
|
return (x + 7) & ~7;
|
|
}
|
|
|
|
/*
|
|
** Round down to the nearest multiple of 8
|
|
*/
|
|
|
|
//#define ROUNDDOWN8(x) ((x)&~7)
|
|
private static int ROUNDDOWN8(int x)
|
|
{
|
|
return x & ~7;
|
|
}
|
|
|
|
/*
|
|
** Assert that the pointer X is aligned to an 8-byte boundary. This
|
|
** macro is used only within Debug.Assert() to verify that the code gets
|
|
** all alignment restrictions correct.
|
|
**
|
|
** Except, if SQLITE_4_BYTE_ALIGNED_MALLOC is defined, then the
|
|
** underlying malloc() implemention might return us 4-byte aligned
|
|
** pointers. In that case, only verify 4-byte alignment.
|
|
*/
|
|
//#if SQLITE_4_BYTE_ALIGNED_MALLOC
|
|
//# define EIGHT_BYTE_ALIGNMENT(X) ((((char)(X) - (char)0)&3)==0)
|
|
//#else
|
|
//# define EIGHT_BYTE_ALIGNMENT(X) ((((char)(X) - (char)0)&7)==0)
|
|
//#endif
|
|
|
|
/*
|
|
** An instance of the following structure is used to store the busy-handler
|
|
** callback for a given sqlite handle.
|
|
**
|
|
** The sqlite.busyHandler member of the sqlite struct contains the busy
|
|
** callback for the database handle. Each pager opened via the sqlite
|
|
** handle is passed a pointer to sqlite.busyHandler. The busy-handler
|
|
** callback is currently invoked only from within pager.c.
|
|
*/
|
|
|
|
//typedef struct BusyHandler BusyHandler;
|
|
public class BusyHandler
|
|
{
|
|
public dxBusy xFunc;//)(void *,int); /* The busy callback */
|
|
public object pArg; /* First arg to busy callback */
|
|
public int nBusy; /* Incremented with each busy call */
|
|
};
|
|
|
|
/*
|
|
** Name of the master database table. The master database table
|
|
** is a special table that holds the names and attributes of all
|
|
** user tables and indices.
|
|
*/
|
|
private const string MASTER_NAME = "sqlite_master";//#define MASTER_NAME "sqlite_master"
|
|
private const string TEMP_MASTER_NAME = "sqlite_temp_master";//#define TEMP_MASTER_NAME "sqlite_temp_master"
|
|
|
|
/*
|
|
** The root-page of the master database table.
|
|
*/
|
|
private const int MASTER_ROOT = 1;//#define MASTER_ROOT 1
|
|
|
|
/*
|
|
** The name of the schema table.
|
|
*/
|
|
|
|
private static string SCHEMA_TABLE(int x) //#define SCHEMA_TABLE(x) ((!OMIT_TEMPDB)&&(x==1)?TEMP_MASTER_NAME:MASTER_NAME)
|
|
{
|
|
return ((OMIT_TEMPDB == 0) && (x == 1) ? TEMP_MASTER_NAME : MASTER_NAME);
|
|
}
|
|
|
|
/*
|
|
** A convenience macro that returns the number of elements in
|
|
** an array.
|
|
*/
|
|
|
|
//#define ArraySize(X) ((int)(sizeof(X)/sizeof(X[0])))
|
|
private static int ArraySize<T>(T[] x)
|
|
{
|
|
return x.Length;
|
|
}
|
|
|
|
/*
|
|
** The following value as a destructor means to use sqlite3DbFree().
|
|
** This is an internal extension to SQLITE_STATIC and SQLITE_TRANSIENT.
|
|
*/
|
|
|
|
//#define SQLITE_DYNAMIC ((sqlite3_destructor_type)sqlite3DbFree)
|
|
private static dxDel SQLITE_DYNAMIC;
|
|
|
|
/*
|
|
** When SQLITE_OMIT_WSD is defined, it means that the target platform does
|
|
** not support Writable Static Data (WSD) such as global and static variables.
|
|
** All variables must either be on the stack or dynamically allocated from
|
|
** the heap. When WSD is unsupported, the variable declarations scattered
|
|
** throughout the SQLite code must become constants instead. The SQLITE_WSD
|
|
** macro is used for this purpose. And instead of referencing the variable
|
|
** directly, we use its constant as a key to lookup the run-time allocated
|
|
** buffer that holds real variable. The constant is also the initializer
|
|
** for the run-time allocated buffer.
|
|
**
|
|
** In the usual case where WSD is supported, the SQLITE_WSD and GLOBAL
|
|
** macros become no-ops and have zero performance impact.
|
|
*/
|
|
#if SQLITE_OMIT_WSD
|
|
//#define SQLITE_WSD const
|
|
//#define GLOBAL(t,v) (*(t)sqlite3_wsd_find((void)&(v), sizeof(v)))
|
|
//#define sqlite3GlobalConfig GLOBAL(struct Sqlite3Config, sqlite3Config)
|
|
int sqlite3_wsd_init(int N, int J);
|
|
void *sqlite3_wsd_find(void *K, int L);
|
|
#else
|
|
|
|
//#define SQLITE_WSD
|
|
//#define GLOBAL(t,v) v
|
|
//#define sqlite3GlobalConfig sqlite3Config
|
|
private static Sqlite3Config sqlite3GlobalConfig;
|
|
|
|
#endif
|
|
|
|
/*
|
|
** The following macros are used to suppress compiler warnings and to
|
|
** make it clear to human readers when a function parameter is deliberately
|
|
** left unused within the body of a function. This usually happens when
|
|
** a function is called via a function pointer. For example the
|
|
** implementation of an SQL aggregate step callback may not use the
|
|
** parameter indicating the number of arguments passed to the aggregate,
|
|
** if it knows that this is enforced elsewhere.
|
|
**
|
|
** When a function parameter is not used at all within the body of a function,
|
|
** it is generally named "NotUsed" or "NotUsed2" to make things even clearer.
|
|
** However, these macros may also be used to suppress warnings related to
|
|
** parameters that may or may not be used depending on compilation options.
|
|
** For example those parameters only used in Debug.Assert() statements. In these
|
|
** cases the parameters are named as per the usual conventions.
|
|
*/
|
|
|
|
//#define UNUSED_PARAMETER(x) (void)(x)
|
|
private static void UNUSED_PARAMETER<T>(T x)
|
|
{
|
|
}
|
|
|
|
//#define UNUSED_PARAMETER2(x,y) UNUSED_PARAMETER(x),UNUSED_PARAMETER(y)
|
|
private static void UNUSED_PARAMETER2<T1, T2>(T1 x, T2 y)
|
|
{
|
|
UNUSED_PARAMETER(x);
|
|
UNUSED_PARAMETER(y);
|
|
}
|
|
|
|
/*
|
|
** Forward references to structures
|
|
*/
|
|
//typedef struct AggInfo AggInfo;
|
|
//typedef struct AuthContext AuthContext;
|
|
//typedef struct AutoincInfo AutoincInfo;
|
|
//typedef struct Bitvec Bitvec;
|
|
//typedef struct CollSeq CollSeq;
|
|
//typedef struct Column Column;
|
|
//typedef struct Db Db;
|
|
//typedef struct Schema Schema;
|
|
//typedef struct Expr Expr;
|
|
//typedef struct ExprList ExprList;
|
|
//typedef struct ExprSpan ExprSpan;
|
|
//typedef struct FKey FKey;
|
|
//typedef struct FuncDestructor FuncDestructor;
|
|
//typedef struct FuncDef FuncDef;
|
|
//typedef struct IdList IdList;
|
|
//typedef struct Index Index;
|
|
//typedef struct IndexSample IndexSample;
|
|
//typedef struct KeyClass KeyClass;
|
|
//typedef struct KeyInfo KeyInfo;
|
|
//typedef struct Lookaside Lookaside;
|
|
//typedef struct LookasideSlot LookasideSlot;
|
|
//typedef struct Module Module;
|
|
//typedef struct NameContext NameContext;
|
|
//typedef struct Parse Parse;
|
|
//typedef struct RowSet RowSet;
|
|
//typedef struct Savepoint Savepoint;
|
|
//typedef struct Select Select;
|
|
//typedef struct SrcList SrcList;
|
|
//typedef struct StrAccum StrAccum;
|
|
//typedef struct Table Table;
|
|
//typedef struct TableLock TableLock;
|
|
//typedef struct Token Token;
|
|
//typedef struct Trigger Trigger;
|
|
//typedef struct TriggerPrg TriggerPrg;
|
|
//typedef struct TriggerStep TriggerStep;
|
|
//typedef struct UnpackedRecord UnpackedRecord;
|
|
//typedef struct VTable VTable;
|
|
//typedef struct VtabCtx VtabCtx;
|
|
//typedef struct Walker Walker;
|
|
//typedef struct WherePlan WherePlan;
|
|
//typedef struct WhereInfo WhereInfo;
|
|
//typedef struct WhereLevel WhereLevel;
|
|
|
|
/*
|
|
** Defer sourcing vdbe.h and btree.h until after the "u8" and
|
|
** "BusyHandler" typedefs. vdbe.h also requires a few of the opaque
|
|
** pointer types (i.e. FuncDef) defined above.
|
|
*/
|
|
//#include "btree.h"
|
|
//#include "vdbe.h"
|
|
//#include "pager.h"
|
|
//#include "pcache_g.h"
|
|
|
|
//#include "os.h"
|
|
//#include "mutex.h"
|
|
|
|
/*
|
|
** Each database file to be accessed by the system is an instance
|
|
** of the following structure. There are normally two of these structures
|
|
** in the sqlite.aDb[] array. aDb[0] is the main database file and
|
|
** aDb[1] is the database file used to hold temporary tables. Additional
|
|
** databases may be attached.
|
|
*/
|
|
|
|
public class Db
|
|
{
|
|
public string zName; /* Name of this database */
|
|
public Btree pBt; /* The B Tree structure for this database file */
|
|
public u8 inTrans; /* 0: not writable. 1: Transaction. 2: Checkpoint */
|
|
public u8 safety_level; /* How aggressive at syncing data to disk */
|
|
public Schema pSchema; /* Pointer to database schema (possibly shared) */
|
|
};
|
|
|
|
/*
|
|
** An instance of the following structure stores a database schema.
|
|
**
|
|
** Most Schema objects are associated with a Btree. The exception is
|
|
** the Schema for the TEMP databaes (sqlite3.aDb[1]) which is free-standing.
|
|
** In shared cache mode, a single Schema object can be shared by multiple
|
|
** Btrees that refer to the same underlying BtShared object.
|
|
**
|
|
** Schema objects are automatically deallocated when the last Btree that
|
|
** references them is destroyed. The TEMP Schema is manually freed by
|
|
** sqlite3_close().
|
|
*
|
|
** A thread must be holding a mutex on the corresponding Btree in order
|
|
** to access Schema content. This implies that the thread must also be
|
|
** holding a mutex on the sqlite3 connection pointer that owns the Btree.
|
|
** For a TEMP Schema, only the connection mutex is required.
|
|
*/
|
|
|
|
public class Schema
|
|
{
|
|
public int schema_cookie; /* Database schema version number for this file */
|
|
public u32 iGeneration; /* Generation counter. Incremented with each change */
|
|
public Hash tblHash = new Hash(); /* All tables indexed by name */
|
|
public Hash idxHash = new Hash(); /* All (named) indices indexed by name */
|
|
public Hash trigHash = new Hash();/* All triggers indexed by name */
|
|
public Hash fkeyHash = new Hash();/* All foreign keys by referenced table name */
|
|
public Table pSeqTab; /* The sqlite_sequence table used by AUTOINCREMENT */
|
|
public u8 file_format; /* Schema format version for this file */
|
|
public u8 enc; /* Text encoding used by this database */
|
|
public u16 flags; /* Flags associated with this schema */
|
|
public int cache_size; /* Number of pages to use in the cache */
|
|
|
|
public Schema Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
Schema cp = (Schema)MemberwiseClone();
|
|
return cp;
|
|
}
|
|
}
|
|
|
|
public void Clear()
|
|
{
|
|
if (this != null)
|
|
{
|
|
schema_cookie = 0;
|
|
tblHash = new Hash();
|
|
idxHash = new Hash();
|
|
trigHash = new Hash();
|
|
fkeyHash = new Hash();
|
|
pSeqTab = null;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** These macros can be used to test, set, or clear bits in the
|
|
** Db.pSchema->flags field.
|
|
*/
|
|
|
|
//#define DbHasProperty(D,I,P) (((D)->aDb[I].pSchema->flags&(P))==(P))
|
|
private static bool DbHasProperty(sqlite3 D, int I, ushort P)
|
|
{
|
|
return (D.aDb[I].pSchema.flags & P) == P;
|
|
}
|
|
|
|
//#define DbHasAnyProperty(D,I,P) (((D)->aDb[I].pSchema->flags&(P))!=0)
|
|
//#define DbSetProperty(D,I,P) (D)->aDb[I].pSchema->flags|=(P)
|
|
private static void DbSetProperty(sqlite3 D, int I, ushort P)
|
|
{
|
|
D.aDb[I].pSchema.flags = (u16)(D.aDb[I].pSchema.flags | P);
|
|
}
|
|
|
|
//#define DbClearProperty(D,I,P) (D)->aDb[I].pSchema->flags&=~(P)
|
|
private static void DbClearProperty(sqlite3 D, int I, ushort P)
|
|
{
|
|
D.aDb[I].pSchema.flags = (u16)(D.aDb[I].pSchema.flags & ~P);
|
|
}
|
|
|
|
/*
|
|
** Allowed values for the DB.pSchema->flags field.
|
|
**
|
|
** The DB_SchemaLoaded flag is set after the database schema has been
|
|
** read into internal hash tables.
|
|
**
|
|
** DB_UnresetViews means that one or more views have column names that
|
|
** have been filled out. If the schema changes, these column names might
|
|
** changes and so the view will need to be reset.
|
|
*/
|
|
|
|
//#define DB_SchemaLoaded 0x0001 /* The schema has been loaded */
|
|
//#define DB_UnresetViews 0x0002 /* Some views have defined column names */
|
|
//#define DB_Empty 0x0004 /* The file is empty (length 0 bytes) */
|
|
private const u16 DB_SchemaLoaded = 0x0001;
|
|
|
|
private const u16 DB_UnresetViews = 0x0002;
|
|
private const u16 DB_Empty = 0x0004;
|
|
|
|
/*
|
|
** The number of different kinds of things that can be limited
|
|
** using the sqlite3_limit() interface.
|
|
*/
|
|
|
|
//#define SQLITE_N_LIMIT (SQLITE_LIMIT_TRIGGER_DEPTH+1)
|
|
private const int SQLITE_N_LIMIT = SQLITE_LIMIT_TRIGGER_DEPTH + 1;
|
|
|
|
/*
|
|
** Lookaside malloc is a set of fixed-size buffers that can be used
|
|
** to satisfy small transient memory allocation requests for objects
|
|
** associated with a particular database connection. The use of
|
|
** lookaside malloc provides a significant performance enhancement
|
|
** (approx 10%) by avoiding numerous malloc/free requests while parsing
|
|
** SQL statements.
|
|
**
|
|
** The Lookaside structure holds configuration information about the
|
|
** lookaside malloc subsystem. Each available memory allocation in
|
|
** the lookaside subsystem is stored on a linked list of LookasideSlot
|
|
** objects.
|
|
**
|
|
** Lookaside allocations are only allowed for objects that are associated
|
|
** with a particular database connection. Hence, schema information cannot
|
|
** be stored in lookaside because in shared cache mode the schema information
|
|
** is shared by multiple database connections. Therefore, while parsing
|
|
** schema information, the Lookaside.bEnabled flag is cleared so that
|
|
** lookaside allocations are not used to construct the schema objects.
|
|
*/
|
|
|
|
public class Lookaside
|
|
{
|
|
public int sz; /* Size of each buffer in bytes */
|
|
public u8 bEnabled; /* False to disable new lookaside allocations */
|
|
public bool bMalloced; /* True if pStart obtained from sqlite3_malloc() */
|
|
public int nOut; /* Number of buffers currently checked out */
|
|
public int mxOut; /* Highwater mark for nOut */
|
|
public int[] anStat = new int[3]; /* 0: hits. 1: size misses. 2: full misses */
|
|
public LookasideSlot pFree; /* List of available buffers */
|
|
public int pStart; /* First byte of available memory space */
|
|
public int pEnd; /* First byte past end of available space */
|
|
};
|
|
|
|
public class LookasideSlot
|
|
{
|
|
public LookasideSlot pNext; /* Next buffer in the list of free buffers */
|
|
};
|
|
|
|
/*
|
|
** A hash table for function definitions.
|
|
**
|
|
** Hash each FuncDef structure into one of the FuncDefHash.a[] slots.
|
|
** Collisions are on the FuncDef.pHash chain.
|
|
*/
|
|
|
|
public class FuncDefHash
|
|
{
|
|
public FuncDef[] a = new FuncDef[23]; /* Hash table for functions */
|
|
};
|
|
|
|
/*
|
|
** Each database connection is an instance of the following structure.
|
|
**
|
|
** The sqlite.lastRowid records the last insert rowid generated by an
|
|
** insert statement. Inserts on views do not affect its value. Each
|
|
** trigger has its own context, so that lastRowid can be updated inside
|
|
** triggers as usual. The previous value will be restored once the trigger
|
|
** exits. Upon entering a before or instead of trigger, lastRowid is no
|
|
** longer (since after version 2.8.12) reset to -1.
|
|
**
|
|
** The sqlite.nChange does not count changes within triggers and keeps no
|
|
** context. It is reset at start of sqlite3_exec.
|
|
** The sqlite.lsChange represents the number of changes made by the last
|
|
** insert, update, or delete statement. It remains constant throughout the
|
|
** length of a statement and is then updated by OP_SetCounts. It keeps a
|
|
** context stack just like lastRowid so that the count of changes
|
|
** within a trigger is not seen outside the trigger. Changes to views do not
|
|
** affect the value of lsChange.
|
|
** The sqlite.csChange keeps track of the number of current changes (since
|
|
** the last statement) and is used to update sqlite_lsChange.
|
|
**
|
|
** The member variables sqlite.errCode, sqlite.zErrMsg and sqlite.zErrMsg16
|
|
** store the most recent error code and, if applicable, string. The
|
|
** internal function sqlite3Error() is used to set these variables
|
|
** consistently.
|
|
*/
|
|
|
|
public class sqlite3
|
|
{
|
|
public sqlite3_vfs pVfs; /* OS Interface */
|
|
public int nDb; /* Number of backends currently in use */
|
|
public Db[] aDb = new Db[SQLITE_MAX_ATTACHED]; /* All backends */
|
|
public int flags; /* Miscellaneous flags. See below */
|
|
public int openFlags; /* Flags passed to sqlite3_vfs.xOpen() */
|
|
public int errCode; /* Most recent error code (SQLITE_) */
|
|
public int errMask; /* & result codes with this before returning */
|
|
public u8 autoCommit; /* The auto-commit flag. */
|
|
public u8 temp_store; /* 1: file 2: memory 0: default */
|
|
|
|
// Cannot happen under C#
|
|
// public u8 mallocFailed; /* True if we have seen a malloc failure */
|
|
public u8 dfltLockMode; /* Default locking-mode for attached dbs */
|
|
|
|
public int nextAutovac; /* Autovac setting after VACUUM if >=0 */
|
|
public u8 suppressErr; /* Do not issue error messages if true */
|
|
public u8 vtabOnConflict; /* Value to return for s3_vtab_on_conflict() */
|
|
public int nextPagesize; /* Pagesize after VACUUM if >0 */
|
|
public int nTable; /* Number of tables in the database */
|
|
public CollSeq pDfltColl; /* The default collating sequence (BINARY) */
|
|
public i64 lastRowid; /* ROWID of most recent insert (see above) */
|
|
public u32 magic; /* Magic number for detect library misuse */
|
|
public int nChange; /* Value returned by sqlite3_changes() */
|
|
public int nTotalChange; /* Value returned by sqlite3_total_changes() */
|
|
public sqlite3_mutex mutex; /* Connection mutex */
|
|
public int[] aLimit = new int[SQLITE_N_LIMIT]; /* Limits */
|
|
|
|
public class sqlite3InitInfo
|
|
{ /* Information used during initialization */
|
|
public int iDb; /* When back is being initialized */
|
|
public int newTnum; /* Rootpage of table being initialized */
|
|
public u8 busy; /* TRUE if currently initializing */
|
|
public u8 orphanTrigger; /* Last statement is orphaned TEMP trigger */
|
|
};
|
|
|
|
public sqlite3InitInfo init = new sqlite3InitInfo();
|
|
public int nExtension; /* Number of loaded extensions */
|
|
public object[] aExtension; /* Array of shared library handles */
|
|
public Vdbe pVdbe; /* List of active virtual machines */
|
|
public int activeVdbeCnt; /* Number of VDBEs currently executing */
|
|
public int writeVdbeCnt; /* Number of active VDBEs that are writing */
|
|
public int vdbeExecCnt; /* Number of nested calls to VdbeExec() */
|
|
public dxTrace xTrace;//)(void*,const char); /* Trace function */
|
|
public object pTraceArg; /* Argument to the trace function */
|
|
public dxProfile xProfile;//)(void*,const char*,u64); /* Profiling function */
|
|
public object pProfileArg; /* Argument to profile function */
|
|
public object pCommitArg; /* Argument to xCommitCallback() */
|
|
public dxCommitCallback xCommitCallback;//)(void); /* Invoked at every commit. */
|
|
public object pRollbackArg; /* Argument to xRollbackCallback() */
|
|
public dxRollbackCallback xRollbackCallback;//)(void); /* Invoked at every commit. */
|
|
public object pUpdateArg;
|
|
public dxUpdateCallback xUpdateCallback;//)(void*,int, const char*,const char*,sqlite_int64);
|
|
#if !SQLITE_OMIT_WAL
|
|
//int (*xWalCallback)(void *, sqlite3 *, string , int);
|
|
//void *pWalArg;
|
|
#endif
|
|
public dxCollNeeded xCollNeeded;//)(void*,sqlite3*,int eTextRep,const char);
|
|
public dxCollNeeded xCollNeeded16;//)(void*,sqlite3*,int eTextRep,const void);
|
|
public object pCollNeededArg;
|
|
public sqlite3_value pErr; /* Most recent error message */
|
|
public string zErrMsg; /* Most recent error message (UTF-8 encoded) */
|
|
public string zErrMsg16; /* Most recent error message (UTF-16 encoded) */
|
|
|
|
public struct _u1
|
|
{
|
|
public bool isInterrupted; /* True if sqlite3_interrupt has been called */
|
|
public double notUsed1; /* Spacer */
|
|
}
|
|
|
|
public _u1 u1;
|
|
public Lookaside lookaside = new Lookaside(); /* Lookaside malloc configuration */
|
|
#if !SQLITE_OMIT_AUTHORIZATION
|
|
public dxAuth xAuth;//)(void*,int,const char*,const char*,const char*,const char);
|
|
/* Access authorization function */
|
|
public object pAuthArg; /* 1st argument to the access auth function */
|
|
#endif
|
|
#if !SQLITE_OMIT_PROGRESS_CALLBACK
|
|
public dxProgress xProgress;//)(void ); /* The progress callback */
|
|
public object pProgressArg; /* Argument to the progress callback */
|
|
public int nProgressOps; /* Number of opcodes for progress callback */
|
|
#endif
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
public Hash aModule; /* populated by sqlite3_create_module() */
|
|
public VtabCtx pVtabCtx; /* Context for active vtab connect/create */
|
|
public VTable[] aVTrans; /* Virtual tables with open transactions */
|
|
public int nVTrans; /* Allocated size of aVTrans */
|
|
public VTable pDisconnect; /* Disconnect these in next sqlite3_prepare() */
|
|
#endif
|
|
public FuncDefHash aFunc = new FuncDefHash(); /* Hash table of connection functions */
|
|
public Hash aCollSeq = new Hash(); /* All collating sequences */
|
|
public BusyHandler busyHandler = new BusyHandler(); /* Busy callback */
|
|
public int busyTimeout; /* Busy handler timeout, in msec */
|
|
public Db[] aDbStatic = new Db[] { new Db(), new Db() }; /* Static space for the 2 default backends */
|
|
public Savepoint pSavepoint; /* List of active savepoints */
|
|
public int nSavepoint; /* Number of non-transaction savepoints */
|
|
public int nStatement; /* Number of nested statement-transactions */
|
|
public u8 isTransactionSavepoint; /* True if the outermost savepoint is a TS */
|
|
public i64 nDeferredCons; /* Net deferred constraints this transaction. */
|
|
public int pnBytesFreed; /* If not NULL, increment this in DbFree() */
|
|
#if SQLITE_ENABLE_UNLOCK_NOTIFY
|
|
/* The following variables are all protected by the STATIC_MASTER
|
|
** mutex, not by sqlite3.mutex. They are used by code in notify.c.
|
|
**
|
|
** When X.pUnlockConnection==Y, that means that X is waiting for Y to
|
|
** unlock so that it can proceed.
|
|
**
|
|
** When X.pBlockingConnection==Y, that means that something that X tried
|
|
** tried to do recently failed with an SQLITE_LOCKED error due to locks
|
|
** held by Y.
|
|
*/
|
|
sqlite3 *pBlockingConnection; /* Connection that caused SQLITE_LOCKED */
|
|
sqlite3 *pUnlockConnection; /* Connection to watch for unlock */
|
|
void *pUnlockArg; /* Argument to xUnlockNotify */
|
|
void (*xUnlockNotify)(void **, int); /* Unlock notify callback */
|
|
sqlite3 *pNextBlocked; /* Next in list of all blocked connections */
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
** A macro to discover the encoding of a database.
|
|
*/
|
|
|
|
//#define ENC(db) ((db)->aDb[0].pSchema->enc)
|
|
private static u8 ENC(sqlite3 db)
|
|
{
|
|
return db.aDb[0].pSchema.enc;
|
|
}
|
|
|
|
/*
|
|
** Possible values for the sqlite3.flags.
|
|
*/
|
|
|
|
//#define SQLITE_VdbeTrace 0x00000100 /* True to trace VDBE execution */
|
|
//#define SQLITE_InternChanges 0x00000200 /* Uncommitted Hash table changes */
|
|
//#define SQLITE_FullColNames 0x00000400 /* Show full column names on SELECT */
|
|
//#define SQLITE_ShortColNames 0x00000800 /* Show short columns names */
|
|
//#define SQLITE_CountRows 0x00001000 /* Count rows changed by INSERT, */
|
|
// /* DELETE, or UPDATE and return */
|
|
// /* the count using a callback. */
|
|
//#define SQLITE_NullCallback 0x00002000 /* Invoke the callback once if the */
|
|
// /* result set is empty */
|
|
//#define SQLITE_SqlTrace 0x00004000 /* Debug print SQL as it executes */
|
|
//#define SQLITE_VdbeListing 0x00008000 /* Debug listings of VDBE programs */
|
|
//#define SQLITE_WriteSchema 0x00010000 /* OK to update SQLITE_MASTER */
|
|
//#define SQLITE_NoReadlock 0x00020000 /* Readlocks are omitted when
|
|
// ** accessing read-only databases */
|
|
//#define SQLITE_IgnoreChecks 0x00040000 /* Do not enforce check constraints */
|
|
//#define SQLITE_ReadUncommitted 0x0080000 /* For shared-cache mode */
|
|
//#define SQLITE_LegacyFileFmt 0x00100000 /* Create new databases in format 1 */
|
|
//#define SQLITE_FullFSync 0x00200000 /* Use full fsync on the backend */
|
|
//#define SQLITE_CkptFullFSync 0x00400000 /* Use full fsync for checkpoint */
|
|
//#define SQLITE_RecoveryMode 0x00800000 /* Ignore schema errors */
|
|
//#define SQLITE_ReverseOrder 0x01000000 /* Reverse unordered SELECTs */
|
|
//#define SQLITE_RecTriggers 0x02000000 /* Enable recursive triggers */
|
|
//#define SQLITE_ForeignKeys 0x04000000 /* Enforce foreign key constraints */
|
|
//#define SQLITE_AutoIndex 0x08000000 /* Enable automatic indexes */
|
|
//#define SQLITE_PreferBuiltin 0x10000000 /* Preference to built-in funcs */
|
|
//#define SQLITE_LoadExtension 0x20000000 /* Enable load_extension */
|
|
//define SQLITE_EnableTrigger 0x40000000 /* True to enable triggers */
|
|
private const int SQLITE_VdbeTrace = 0x00000100;
|
|
|
|
private const int SQLITE_InternChanges = 0x00000200;
|
|
private const int SQLITE_FullColNames = 0x00000400;
|
|
private const int SQLITE_ShortColNames = 0x00000800;
|
|
private const int SQLITE_CountRows = 0x00001000;
|
|
private const int SQLITE_NullCallback = 0x00002000;
|
|
private const int SQLITE_SqlTrace = 0x00004000;
|
|
private const int SQLITE_VdbeListing = 0x00008000;
|
|
private const int SQLITE_WriteSchema = 0x00010000;
|
|
private const int SQLITE_NoReadlock = 0x00020000;
|
|
private const int SQLITE_IgnoreChecks = 0x00040000;
|
|
private const int SQLITE_ReadUncommitted = 0x0080000;
|
|
private const int SQLITE_LegacyFileFmt = 0x00100000;
|
|
private const int SQLITE_FullFSync = 0x00200000;
|
|
private const int SQLITE_CkptFullFSync = 0x00400000;
|
|
private const int SQLITE_RecoveryMode = 0x00800000;
|
|
private const int SQLITE_ReverseOrder = 0x01000000;
|
|
private const int SQLITE_RecTriggers = 0x02000000;
|
|
private const int SQLITE_ForeignKeys = 0x04000000;
|
|
private const int SQLITE_AutoIndex = 0x08000000;
|
|
private const int SQLITE_PreferBuiltin = 0x10000000;
|
|
private const int SQLITE_LoadExtension = 0x20000000;
|
|
private const int SQLITE_EnableTrigger = 0x40000000;
|
|
|
|
/*
|
|
** Bits of the sqlite3.flags field that are used by the
|
|
** sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS,...) interface.
|
|
** These must be the low-order bits of the flags field.
|
|
*/
|
|
|
|
//#define SQLITE_QueryFlattener 0x01 /* Disable query flattening */
|
|
//#define SQLITE_ColumnCache 0x02 /* Disable the column cache */
|
|
//#define SQLITE_IndexSort 0x04 /* Disable indexes for sorting */
|
|
//#define SQLITE_IndexSearch 0x08 /* Disable indexes for searching */
|
|
//#define SQLITE_IndexCover 0x10 /* Disable index covering table */
|
|
//#define SQLITE_GroupByOrder 0x20 /* Disable GROUPBY cover of ORDERBY */
|
|
//#define SQLITE_FactorOutConst 0x40 /* Disable factoring out constants */
|
|
//#define SQLITE_IdxRealAsInt 0x80 /* Store REAL as INT in indices */
|
|
//#define SQLITE_OptMask 0xff /* Mask of all disablable opts */
|
|
private const int SQLITE_QueryFlattener = 0x01;
|
|
|
|
private const int SQLITE_ColumnCache = 0x02;
|
|
private const int SQLITE_IndexSort = 0x04;
|
|
private const int SQLITE_IndexSearch = 0x08;
|
|
private const int SQLITE_IndexCover = 0x10;
|
|
private const int SQLITE_GroupByOrder = 0x20;
|
|
private const int SQLITE_FactorOutConst = 0x40;
|
|
private const int SQLITE_IdxRealAsInt = 0x80;
|
|
private const int SQLITE_OptMask = 0xff;
|
|
|
|
/*
|
|
** Possible values for the sqlite.magic field.
|
|
** The numbers are obtained at random and have no special meaning, other
|
|
** than being distinct from one another.
|
|
*/
|
|
private const int SQLITE_MAGIC_OPEN = 0x1029a697; //#define SQLITE_MAGIC_OPEN 0xa029a697 /* Database is open */
|
|
private const int SQLITE_MAGIC_CLOSED = 0x2f3c2d33; //#define SQLITE_MAGIC_CLOSED 0x9f3c2d33 /* Database is closed */
|
|
private const int SQLITE_MAGIC_SICK = 0x3b771290; //#define SQLITE_MAGIC_SICK 0x4b771290 /* Error and awaiting close */
|
|
private const int SQLITE_MAGIC_BUSY = 0x403b7906; //#define SQLITE_MAGIC_BUSY 0xf03b7906 /* Database currently in use */
|
|
private const int SQLITE_MAGIC_ERROR = 0x55357930; //#define SQLITE_MAGIC_ERROR 0xb5357930 /* An SQLITE_MISUSE error occurred */
|
|
|
|
/*
|
|
** Each SQL function is defined by an instance of the following
|
|
** structure. A pointer to this structure is stored in the sqlite.aFunc
|
|
** hash table. When multiple functions have the same name, the hash table
|
|
** points to a linked list of these structures.
|
|
*/
|
|
|
|
public class FuncDef
|
|
{
|
|
public i16 nArg; /* Number of arguments. -1 means unlimited */
|
|
public u8 iPrefEnc; /* Preferred text encoding (SQLITE_UTF8, 16LE, 16BE) */
|
|
public u8 flags; /* Some combination of SQLITE_FUNC_* */
|
|
public object pUserData; /* User data parameter */
|
|
public FuncDef pNext; /* Next function with same name */
|
|
public dxFunc xFunc;//)(sqlite3_context*,int,sqlite3_value*); /* Regular function */
|
|
public dxStep xStep;//)(sqlite3_context*,int,sqlite3_value*); /* Aggregate step */
|
|
public dxFinal xFinalize;//)(sqlite3_context); /* Aggregate finalizer */
|
|
public string zName; /* SQL name of the function. */
|
|
public FuncDef pHash; /* Next with a different name but the same hash */
|
|
public FuncDestructor pDestructor; /* Reference counted destructor function */
|
|
|
|
public FuncDef()
|
|
{
|
|
}
|
|
|
|
public FuncDef(i16 nArg, u8 iPrefEnc, u8 iflags, object pUserData, FuncDef pNext, dxFunc xFunc, dxStep xStep, dxFinal xFinalize, string zName, FuncDef pHash, FuncDestructor pDestructor)
|
|
{
|
|
this.nArg = nArg;
|
|
this.iPrefEnc = iPrefEnc;
|
|
this.flags = iflags;
|
|
this.pUserData = pUserData;
|
|
this.pNext = pNext;
|
|
this.xFunc = xFunc;
|
|
this.xStep = xStep;
|
|
this.xFinalize = xFinalize;
|
|
this.zName = zName;
|
|
this.pHash = pHash;
|
|
this.pDestructor = pDestructor;
|
|
}
|
|
|
|
public FuncDef(string zName, u8 iPrefEnc, i16 nArg, int iArg, u8 iflags, dxFunc xFunc)
|
|
{
|
|
this.nArg = nArg;
|
|
this.iPrefEnc = iPrefEnc;
|
|
this.flags = iflags;
|
|
this.pUserData = iArg;
|
|
this.pNext = null;
|
|
this.xFunc = xFunc;
|
|
this.xStep = null;
|
|
this.xFinalize = null;
|
|
this.zName = zName;
|
|
}
|
|
|
|
public FuncDef(string zName, u8 iPrefEnc, i16 nArg, int iArg, u8 iflags, dxStep xStep, dxFinal xFinal)
|
|
{
|
|
this.nArg = nArg;
|
|
this.iPrefEnc = iPrefEnc;
|
|
this.flags = iflags;
|
|
this.pUserData = iArg;
|
|
this.pNext = null;
|
|
this.xFunc = null;
|
|
this.xStep = xStep;
|
|
this.xFinalize = xFinal;
|
|
this.zName = zName;
|
|
}
|
|
|
|
public FuncDef(string zName, u8 iPrefEnc, i16 nArg, object arg, dxFunc xFunc, u8 flags)
|
|
{
|
|
this.nArg = nArg;
|
|
this.iPrefEnc = iPrefEnc;
|
|
this.flags = flags;
|
|
this.pUserData = arg;
|
|
this.pNext = null;
|
|
this.xFunc = xFunc;
|
|
this.xStep = null;
|
|
this.xFinalize = null;
|
|
this.zName = zName;
|
|
}
|
|
|
|
public FuncDef Copy()
|
|
{
|
|
FuncDef c = new FuncDef();
|
|
c.nArg = nArg;
|
|
c.iPrefEnc = iPrefEnc;
|
|
c.flags = flags;
|
|
c.pUserData = pUserData;
|
|
c.pNext = pNext;
|
|
c.xFunc = xFunc;
|
|
c.xStep = xStep;
|
|
c.xFinalize = xFinalize;
|
|
c.zName = zName;
|
|
c.pHash = pHash;
|
|
c.pDestructor = pDestructor;
|
|
return c;
|
|
}
|
|
};
|
|
|
|
/*
|
|
** This structure encapsulates a user-function destructor callback (as
|
|
** configured using create_function_v2()) and a reference counter. When
|
|
** create_function_v2() is called to create a function with a destructor,
|
|
** a single object of this type is allocated. FuncDestructor.nRef is set to
|
|
** the number of FuncDef objects created (either 1 or 3, depending on whether
|
|
** or not the specified encoding is SQLITE_ANY). The FuncDef.pDestructor
|
|
** member of each of the new FuncDef objects is set to point to the allocated
|
|
** FuncDestructor.
|
|
**
|
|
** Thereafter, when one of the FuncDef objects is deleted, the reference
|
|
** count on this object is decremented. When it reaches 0, the destructor
|
|
** is invoked and the FuncDestructor structure freed.
|
|
*/
|
|
|
|
//struct FuncDestructor {
|
|
// int nRef;
|
|
// void (*xDestroy)(void );
|
|
// void *pUserData;
|
|
//};
|
|
public class FuncDestructor
|
|
{
|
|
public int nRef;
|
|
public dxFDestroy xDestroy;// (*xDestroy)(void );
|
|
public object pUserData;
|
|
};
|
|
|
|
/*
|
|
** Possible values for FuncDef.flags
|
|
*/
|
|
|
|
//#define SQLITE_FUNC_LIKE 0x01 /* Candidate for the LIKE optimization */
|
|
//#define SQLITE_FUNC_CASE 0x02 /* Case-sensitive LIKE-type function */
|
|
//#define SQLITE_FUNC_EPHEM 0x04 /* Ephemeral. Delete with VDBE */
|
|
//#define SQLITE_FUNC_NEEDCOLL 0x08 /* sqlite3GetFuncCollSeq() might be called */
|
|
//#define SQLITE_FUNC_PRIVATE 0x10 /* Allowed for internal use only */
|
|
//#define SQLITE_FUNC_COUNT 0x20 /* Built-in count() aggregate */
|
|
//#define SQLITE_FUNC_COALESCE 0x40 /* Built-in coalesce() or ifnull() function */
|
|
private const int SQLITE_FUNC_LIKE = 0x01; /* Candidate for the LIKE optimization */
|
|
|
|
private const int SQLITE_FUNC_CASE = 0x02; /* Case-sensitive LIKE-type function */
|
|
private const int SQLITE_FUNC_EPHEM = 0x04; /* Ephermeral. Delete with VDBE */
|
|
private const int SQLITE_FUNC_NEEDCOLL = 0x08;/* sqlite3GetFuncCollSeq() might be called */
|
|
private const int SQLITE_FUNC_PRIVATE = 0x10; /* Allowed for internal use only */
|
|
private const int SQLITE_FUNC_COUNT = 0x20; /* Built-in count() aggregate */
|
|
private const int SQLITE_FUNC_COALESCE = 0x40;/* Built-in coalesce() or ifnull() function */
|
|
|
|
/*
|
|
** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are
|
|
** used to create the initializers for the FuncDef structures.
|
|
**
|
|
** FUNCTION(zName, nArg, iArg, bNC, xFunc)
|
|
** Used to create a scalar function definition of a function zName
|
|
** implemented by C function xFunc that accepts nArg arguments. The
|
|
** value passed as iArg is cast to a (void) and made available
|
|
** as the user-data (sqlite3_user_data()) for the function. If
|
|
** argument bNC is true, then the SQLITE_FUNC_NEEDCOLL flag is set.
|
|
**
|
|
** AGGREGATE(zName, nArg, iArg, bNC, xStep, xFinal)
|
|
** Used to create an aggregate function definition implemented by
|
|
** the C functions xStep and xFinal. The first four parameters
|
|
** are interpreted in the same way as the first 4 parameters to
|
|
** FUNCTION().
|
|
**
|
|
** LIKEFUNC(zName, nArg, pArg, flags)
|
|
** Used to create a scalar function definition of a function zName
|
|
** that accepts nArg arguments and is implemented by a call to C
|
|
** function likeFunc. Argument pArg is cast to a (void ) and made
|
|
** available as the function user-data (sqlite3_user_data()). The
|
|
** FuncDef.flags variable is set to the value passed as the flags
|
|
** parameter.
|
|
*/
|
|
//#define FUNCTION(zName, nArg, iArg, bNC, xFunc) \
|
|
// {nArg, SQLITE_UTF8, bNC*SQLITE_FUNC_NEEDCOLL, \
|
|
//SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0}
|
|
|
|
private static FuncDef FUNCTION(string zName, i16 nArg, int iArg, u8 bNC, dxFunc xFunc)
|
|
{
|
|
return new FuncDef(zName, SQLITE_UTF8, nArg, iArg, (u8)(bNC * SQLITE_FUNC_NEEDCOLL), xFunc);
|
|
}
|
|
|
|
//#define STR_FUNCTION(zName, nArg, pArg, bNC, xFunc) \
|
|
// {nArg, SQLITE_UTF8, bNC*SQLITE_FUNC_NEEDCOLL, \
|
|
//pArg, 0, xFunc, 0, 0, #zName, 0, 0}
|
|
|
|
//#define LIKEFUNC(zName, nArg, arg, flags) \
|
|
// {nArg, SQLITE_UTF8, flags, (void )arg, 0, likeFunc, 0, 0, #zName, 0, 0}
|
|
private static FuncDef LIKEFUNC(string zName, i16 nArg, object arg, u8 flags)
|
|
{
|
|
return new FuncDef(zName, SQLITE_UTF8, nArg, arg, likeFunc, flags);
|
|
}
|
|
|
|
//#define AGGREGATE(zName, nArg, arg, nc, xStep, xFinal) \
|
|
// {nArg, SQLITE_UTF8, nc*SQLITE_FUNC_NEEDCOLL, \
|
|
//SQLITE_INT_TO_PTR(arg), 0, 0, xStep,xFinal,#zName,0,0}
|
|
|
|
private static FuncDef AGGREGATE(string zName, i16 nArg, int arg, u8 nc, dxStep xStep, dxFinal xFinal)
|
|
{
|
|
return new FuncDef(zName, SQLITE_UTF8, nArg, arg, (u8)(nc * SQLITE_FUNC_NEEDCOLL), xStep, xFinal);
|
|
}
|
|
|
|
/*
|
|
** All current savepoints are stored in a linked list starting at
|
|
** sqlite3.pSavepoint. The first element in the list is the most recently
|
|
** opened savepoint. Savepoints are added to the list by the vdbe
|
|
** OP_Savepoint instruction.
|
|
*/
|
|
|
|
//struct Savepoint {
|
|
// string zName; /* Savepoint name (nul-terminated) */
|
|
// i64 nDeferredCons; /* Number of deferred fk violations */
|
|
// Savepoint *pNext; /* Parent savepoint (if any) */
|
|
//};
|
|
public class Savepoint
|
|
{
|
|
public string zName; /* Savepoint name (nul-terminated) */
|
|
public i64 nDeferredCons; /* Number of deferred fk violations */
|
|
public Savepoint pNext; /* Parent savepoint (if any) */
|
|
};
|
|
|
|
/*
|
|
** The following are used as the second parameter to sqlite3Savepoint(),
|
|
** and as the P1 argument to the OP_Savepoint instruction.
|
|
*/
|
|
private const int SAVEPOINT_BEGIN = 0; //#define SAVEPOINT_BEGIN 0
|
|
private const int SAVEPOINT_RELEASE = 1; //#define SAVEPOINT_RELEASE 1
|
|
private const int SAVEPOINT_ROLLBACK = 2; //#define SAVEPOINT_ROLLBACK 2
|
|
|
|
/*
|
|
** Each SQLite module (virtual table definition) is defined by an
|
|
** instance of the following structure, stored in the sqlite3.aModule
|
|
** hash table.
|
|
*/
|
|
|
|
public class Module
|
|
{
|
|
public sqlite3_module pModule; /* Callback pointers */
|
|
public string zName; /* Name passed to create_module() */
|
|
public object pAux; /* pAux passed to create_module() */
|
|
public smdxDestroy xDestroy;//)(void );/* Module destructor function */
|
|
};
|
|
|
|
/*
|
|
** information about each column of an SQL table is held in an instance
|
|
** of this structure.
|
|
*/
|
|
|
|
public class Column
|
|
{
|
|
public string zName; /* Name of this column */
|
|
public Expr pDflt; /* Default value of this column */
|
|
public string zDflt; /* Original text of the default value */
|
|
public string zType; /* Data type for this column */
|
|
public string zColl; /* Collating sequence. If NULL, use the default */
|
|
public u8 notNull; /* True if there is a NOT NULL constraint */
|
|
public u8 isPrimKey; /* True if this column is part of the PRIMARY KEY */
|
|
public char affinity; /* One of the SQLITE_AFF_... values */
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
public u8 isHidden; /* True if this column is 'hidden' */
|
|
#endif
|
|
|
|
public Column Copy()
|
|
{
|
|
Column cp = (Column)MemberwiseClone();
|
|
if (cp.pDflt != null)
|
|
cp.pDflt = pDflt.Copy();
|
|
return cp;
|
|
}
|
|
};
|
|
|
|
/*
|
|
** A "Collating Sequence" is defined by an instance of the following
|
|
** structure. Conceptually, a collating sequence consists of a name and
|
|
** a comparison routine that defines the order of that sequence.
|
|
**
|
|
** There may two separate implementations of the collation function, one
|
|
** that processes text in UTF-8 encoding (CollSeq.xCmp) and another that
|
|
** processes text encoded in UTF-16 (CollSeq.xCmp16), using the machine
|
|
** native byte order. When a collation sequence is invoked, SQLite selects
|
|
** the version that will require the least expensive encoding
|
|
** translations, if any.
|
|
**
|
|
** The CollSeq.pUser member variable is an extra parameter that passed in
|
|
** as the first argument to the UTF-8 comparison function, xCmp.
|
|
** CollSeq.pUser16 is the equivalent for the UTF-16 comparison function,
|
|
** xCmp16.
|
|
**
|
|
** If both CollSeq.xCmp and CollSeq.xCmp16 are NULL, it means that the
|
|
** collating sequence is undefined. Indices built on an undefined
|
|
** collating sequence may not be read or written.
|
|
*/
|
|
|
|
public class CollSeq
|
|
{
|
|
public string zName; /* Name of the collating sequence, UTF-8 encoded */
|
|
public u8 enc; /* Text encoding handled by xCmp() */
|
|
public u8 type; /* One of the SQLITE_COLL_... values below */
|
|
public object pUser; /* First argument to xCmp() */
|
|
public dxCompare xCmp;//)(void*,int, const void*, int, const void);
|
|
public dxDelCollSeq xDel;//)(void); /* Destructor for pUser */
|
|
|
|
public CollSeq Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
CollSeq cp = (CollSeq)MemberwiseClone();
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** Allowed values of CollSeq.type:
|
|
*/
|
|
private const int SQLITE_COLL_BINARY = 1;//#define SQLITE_COLL_BINARY 1 /* The default memcmp() collating sequence */
|
|
private const int SQLITE_COLL_NOCASE = 2;//#define SQLITE_COLL_NOCASE 2 /* The built-in NOCASE collating sequence */
|
|
private const int SQLITE_COLL_REVERSE = 3;//#define SQLITE_COLL_REVERSE 3 /* The built-in REVERSE collating sequence */
|
|
private const int SQLITE_COLL_USER = 0;//#define SQLITE_COLL_USER 0 /* Any other user-defined collating sequence */
|
|
|
|
/*
|
|
** A sort order can be either ASC or DESC.
|
|
*/
|
|
private const int SQLITE_SO_ASC = 0;//#define SQLITE_SO_ASC 0 /* Sort in ascending order */
|
|
private const int SQLITE_SO_DESC = 1;//#define SQLITE_SO_DESC 1 /* Sort in ascending order */
|
|
|
|
/*
|
|
** Column affinity types.
|
|
**
|
|
** These used to have mnemonic name like 'i' for SQLITE_AFF_INTEGER and
|
|
** 't' for SQLITE_AFF_TEXT. But we can save a little space and improve
|
|
** the speed a little by numbering the values consecutively.
|
|
**
|
|
** But rather than start with 0 or 1, we begin with 'a'. That way,
|
|
** when multiple affinity types are concatenated into a string and
|
|
** used as the P4 operand, they will be more readable.
|
|
**
|
|
** Note also that the numeric types are grouped together so that testing
|
|
** for a numeric type is a single comparison.
|
|
*/
|
|
private const char SQLITE_AFF_TEXT = 'a';//#define SQLITE_AFF_TEXT 'a'
|
|
private const char SQLITE_AFF_NONE = 'b';//#define SQLITE_AFF_NONE 'b'
|
|
private const char SQLITE_AFF_NUMERIC = 'c';//#define SQLITE_AFF_NUMERIC 'c'
|
|
private const char SQLITE_AFF_INTEGER = 'd';//#define SQLITE_AFF_INTEGER 'd'
|
|
private const char SQLITE_AFF_REAL = 'e';//#define SQLITE_AFF_REAL 'e'
|
|
|
|
//#define sqlite3IsNumericAffinity(X) ((X)>=SQLITE_AFF_NUMERIC)
|
|
|
|
/*
|
|
** The SQLITE_AFF_MASK values masks off the significant bits of an
|
|
** affinity value.
|
|
*/
|
|
private const int SQLITE_AFF_MASK = 0x67;//#define SQLITE_AFF_MASK 0x67
|
|
|
|
/*
|
|
** Additional bit values that can be ORed with an affinity without
|
|
** changing the affinity.
|
|
*/
|
|
private const int SQLITE_JUMPIFNULL = 0x08; //#define SQLITE_JUMPIFNULL 0x08 /* jumps if either operand is NULL */
|
|
private const int SQLITE_STOREP2 = 0x10; //#define SQLITE_STOREP2 0x10 /* Store result in reg[P2] rather than jump */
|
|
private const int SQLITE_NULLEQ = 0x80; //#define SQLITE_NULLEQ 0x80 /* NULL=NULL */
|
|
|
|
/*
|
|
** An object of this type is created for each virtual table present in
|
|
** the database schema.
|
|
**
|
|
** If the database schema is shared, then there is one instance of this
|
|
** structure for each database connection (sqlite3) that uses the shared
|
|
** schema. This is because each database connection requires its own unique
|
|
** instance of the sqlite3_vtab* handle used to access the virtual table
|
|
** implementation. sqlite3_vtab* handles can not be shared between
|
|
** database connections, even when the rest of the in-memory database
|
|
** schema is shared, as the implementation often stores the database
|
|
** connection handle passed to it via the xConnect() or xCreate() method
|
|
** during initialization internally. This database connection handle may
|
|
** then be used by the virtual table implementation to access real tables
|
|
** within the database. So that they appear as part of the callers
|
|
** transaction, these accesses need to be made via the same database
|
|
** connection as that used to execute SQL operations on the virtual table.
|
|
**
|
|
** All VTable objects that correspond to a single table in a shared
|
|
** database schema are initially stored in a linked-list pointed to by
|
|
** the Table.pVTable member variable of the corresponding Table object.
|
|
** When an sqlite3_prepare() operation is required to access the virtual
|
|
** table, it searches the list for the VTable that corresponds to the
|
|
** database connection doing the preparing so as to use the correct
|
|
** sqlite3_vtab* handle in the compiled query.
|
|
**
|
|
** When an in-memory Table object is deleted (for example when the
|
|
** schema is being reloaded for some reason), the VTable objects are not
|
|
** deleted and the sqlite3_vtab* handles are not xDisconnect()ed
|
|
** immediately. Instead, they are moved from the Table.pVTable list to
|
|
** another linked list headed by the sqlite3.pDisconnect member of the
|
|
** corresponding sqlite3 structure. They are then deleted/xDisconnected
|
|
** next time a statement is prepared using said sqlite3*. This is done
|
|
** to avoid deadlock issues involving multiple sqlite3.mutex mutexes.
|
|
** Refer to comments above function sqlite3VtabUnlockList() for an
|
|
** explanation as to why it is safe to add an entry to an sqlite3.pDisconnect
|
|
** list without holding the corresponding sqlite3.mutex mutex.
|
|
**
|
|
** The memory for objects of this type is always allocated by
|
|
** sqlite3DbMalloc(), using the connection handle stored in VTable.db as
|
|
** the first argument.
|
|
*/
|
|
|
|
public class VTable
|
|
{
|
|
public sqlite3 db; /* Database connection associated with this table */
|
|
public Module pMod; /* Pointer to module implementation */
|
|
public sqlite3_vtab pVtab; /* Pointer to vtab instance */
|
|
public int nRef; /* Number of pointers to this structure */
|
|
public u8 bConstraint; /* True if constraints are supported */
|
|
public int iSavepoint; /* Depth of the SAVEPOINT stack */
|
|
public VTable pNext; /* Next in linked list (see above) */
|
|
};
|
|
|
|
/*
|
|
** Each SQL table is represented in memory by an instance of the
|
|
** following structure.
|
|
**
|
|
** Table.zName is the name of the table. The case of the original
|
|
** CREATE TABLE statement is stored, but case is not significant for
|
|
** comparisons.
|
|
**
|
|
** Table.nCol is the number of columns in this table. Table.aCol is a
|
|
** pointer to an array of Column structures, one for each column.
|
|
**
|
|
** If the table has an INTEGER PRIMARY KEY, then Table.iPKey is the index of
|
|
** the column that is that key. Otherwise Table.iPKey is negative. Note
|
|
** that the datatype of the PRIMARY KEY must be INTEGER for this field to
|
|
** be set. An INTEGER PRIMARY KEY is used as the rowid for each row of
|
|
** the table. If a table has no INTEGER PRIMARY KEY, then a random rowid
|
|
** is generated for each row of the table. TF_HasPrimaryKey is set if
|
|
** the table has any PRIMARY KEY, INTEGER or otherwise.
|
|
**
|
|
** Table.tnum is the page number for the root BTree page of the table in the
|
|
** database file. If Table.iDb is the index of the database table backend
|
|
** in sqlite.aDb[]. 0 is for the main database and 1 is for the file that
|
|
** holds temporary tables and indices. If TF_Ephemeral is set
|
|
** then the table is stored in a file that is automatically deleted
|
|
** when the VDBE cursor to the table is closed. In this case Table.tnum
|
|
** refers VDBE cursor number that holds the table open, not to the root
|
|
** page number. Transient tables are used to hold the results of a
|
|
** sub-query that appears instead of a real table name in the FROM clause
|
|
** of a SELECT statement.
|
|
*/
|
|
|
|
public class Table
|
|
{
|
|
public string zName; /* Name of the table or view */
|
|
public int iPKey; /* If not negative, use aCol[iPKey] as the primary key */
|
|
public int nCol; /* Number of columns in this table */
|
|
public Column[] aCol; /* Information about each column */
|
|
public Index pIndex; /* List of SQL indexes on this table. */
|
|
public int tnum; /* Root BTree node for this table (see note above) */
|
|
public u32 nRowEst; /* Estimated rows in table - from sqlite_stat1 table */
|
|
public Select pSelect; /* NULL for tables. Points to definition if a view. */
|
|
public u16 nRef; /* Number of pointers to this Table */
|
|
public u8 tabFlags; /* Mask of TF_* values */
|
|
public u8 keyConf; /* What to do in case of uniqueness conflict on iPKey */
|
|
public FKey pFKey; /* Linked list of all foreign keys in this table */
|
|
public string zColAff; /* String defining the affinity of each column */
|
|
#if !SQLITE_OMIT_CHECK
|
|
public Expr pCheck; /* The AND of all CHECK constraints */
|
|
#endif
|
|
#if !SQLITE_OMIT_ALTERTABLE
|
|
public int addColOffset; /* Offset in CREATE TABLE stmt to add a new column */
|
|
#endif
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
public VTable pVTable; /* List of VTable objects. */
|
|
public int nModuleArg; /* Number of arguments to the module */
|
|
public string[] azModuleArg;/* Text of all module args. [0] is module name */
|
|
#endif
|
|
public Trigger pTrigger; /* List of SQL triggers on this table */
|
|
public Schema pSchema; /* Schema that contains this table */
|
|
public Table pNextZombie; /* Next on the Parse.pZombieTab list */
|
|
|
|
public Table Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
Table cp = (Table)MemberwiseClone();
|
|
if (pIndex != null)
|
|
cp.pIndex = pIndex.Copy();
|
|
if (pSelect != null)
|
|
cp.pSelect = pSelect.Copy();
|
|
if (pTrigger != null)
|
|
cp.pTrigger = pTrigger.Copy();
|
|
if (pFKey != null)
|
|
cp.pFKey = pFKey.Copy();
|
|
#if !SQLITE_OMIT_CHECK
|
|
// Don't Clone Checks, only copy reference via Memberwise Clone above --
|
|
//if ( pCheck != null ) cp.pCheck = pCheck.Copy();
|
|
#endif
|
|
// Don't Clone Schema, only copy reference via Memberwise Clone above --
|
|
// if ( pSchema != null ) cp.pSchema=pSchema.Copy();
|
|
// Don't Clone pNextZombie, only copy reference via Memberwise Clone above --
|
|
// if ( pNextZombie != null ) cp.pNextZombie=pNextZombie.Copy();
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** Allowed values for Tabe.tabFlags.
|
|
*/
|
|
//#define TF_Readonly 0x01 /* Read-only system table */
|
|
//#define TF_Ephemeral 0x02 /* An ephemeral table */
|
|
//#define TF_HasPrimaryKey 0x04 /* Table has a primary key */
|
|
//#define TF_Autoincrement 0x08 /* Integer primary key is autoincrement */
|
|
//#define TF_Virtual 0x10 /* Is a virtual table */
|
|
//#define TF_NeedMetadata 0x20 /* aCol[].zType and aCol[].pColl missing */
|
|
/*
|
|
** Allowed values for Tabe.tabFlags.
|
|
*/
|
|
private const int TF_Readonly = 0x01; /* Read-only system table */
|
|
private const int TF_Ephemeral = 0x02; /* An ephemeral table */
|
|
private const int TF_HasPrimaryKey = 0x04; /* Table has a primary key */
|
|
private const int TF_Autoincrement = 0x08; /* Integer primary key is autoincrement */
|
|
private const int TF_Virtual = 0x10; /* Is a virtual table */
|
|
private const int TF_NeedMetadata = 0x20; /* aCol[].zType and aCol[].pColl missing */
|
|
|
|
/*
|
|
** Test to see whether or not a table is a virtual table. This is
|
|
** done as a macro so that it will be optimized out when virtual
|
|
** table support is omitted from the build.
|
|
*/
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
|
|
//# define IsVirtual(X) (((X)->tabFlags & TF_Virtual)!=0)
|
|
private static bool IsVirtual(Table X)
|
|
{
|
|
return (X.tabFlags & TF_Virtual) != 0;
|
|
}
|
|
|
|
//# define IsHiddenColumn(X) ((X)->isHidden)
|
|
private static bool IsHiddenColumn(Column X)
|
|
{
|
|
return X.isHidden != 0;
|
|
}
|
|
|
|
#else
|
|
//# define IsVirtual(X) 0
|
|
static bool IsVirtual( Table T )
|
|
{
|
|
return false;
|
|
}
|
|
//# define IsHiddenColumn(X) 0
|
|
static bool IsHiddenColumn( Column C )
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
** Each foreign key constraint is an instance of the following structure.
|
|
**
|
|
** A foreign key is associated with two tables. The "from" table is
|
|
** the table that contains the REFERENCES clause that creates the foreign
|
|
** key. The "to" table is the table that is named in the REFERENCES clause.
|
|
** Consider this example:
|
|
**
|
|
** CREATE TABLE ex1(
|
|
** a INTEGER PRIMARY KEY,
|
|
** b INTEGER CONSTRAINT fk1 REFERENCES ex2(x)
|
|
** );
|
|
**
|
|
** For foreign key "fk1", the from-table is "ex1" and the to-table is "ex2".
|
|
**
|
|
** Each REFERENCES clause generates an instance of the following structure
|
|
** which is attached to the from-table. The to-table need not exist when
|
|
** the from-table is created. The existence of the to-table is not checked.
|
|
*/
|
|
|
|
public class FKey
|
|
{
|
|
public Table pFrom; /* Table containing the REFERENCES clause (aka: Child) */
|
|
public FKey pNextFrom; /* Next foreign key in pFrom */
|
|
public string zTo; /* Name of table that the key points to (aka: Parent) */
|
|
public FKey pNextTo; /* Next foreign key on table named zTo */
|
|
public FKey pPrevTo; /* Previous foreign key on table named zTo */
|
|
public int nCol; /* Number of columns in this key */
|
|
/* EV: R-30323-21917 */
|
|
public u8 isDeferred; /* True if constraint checking is deferred till COMMIT */
|
|
public u8[] aAction = new u8[2]; /* ON DELETE and ON UPDATE actions, respectively */
|
|
public Trigger[] apTrigger = new Trigger[2];/* Triggers for aAction[] actions */
|
|
|
|
public class sColMap
|
|
{ /* Mapping of columns in pFrom to columns in zTo */
|
|
public int iFrom; /* Index of column in pFrom */
|
|
public string zCol; /* Name of column in zTo. If 0 use PRIMARY KEY */
|
|
};
|
|
|
|
public sColMap[] aCol; /* One entry for each of nCol column s */
|
|
|
|
public FKey Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
FKey cp = (FKey)MemberwiseClone();
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** SQLite supports many different ways to resolve a constraint
|
|
** error. ROLLBACK processing means that a constraint violation
|
|
** causes the operation in process to fail and for the current transaction
|
|
** to be rolled back. ABORT processing means the operation in process
|
|
** fails and any prior changes from that one operation are backed out,
|
|
** but the transaction is not rolled back. FAIL processing means that
|
|
** the operation in progress stops and returns an error code. But prior
|
|
** changes due to the same operation are not backed out and no rollback
|
|
** occurs. IGNORE means that the particular row that caused the constraint
|
|
** error is not inserted or updated. Processing continues and no error
|
|
** is returned. REPLACE means that preexisting database rows that caused
|
|
** a UNIQUE constraint violation are removed so that the new insert or
|
|
** update can proceed. Processing continues and no error is reported.
|
|
**
|
|
** RESTRICT, SETNULL, and CASCADE actions apply only to foreign keys.
|
|
** RESTRICT is the same as ABORT for IMMEDIATE foreign keys and the
|
|
** same as ROLLBACK for DEFERRED keys. SETNULL means that the foreign
|
|
** key is set to NULL. CASCADE means that a DELETE or UPDATE of the
|
|
** referenced table row is propagated into the row that holds the
|
|
** foreign key.
|
|
**
|
|
** The following symbolic values are used to record which type
|
|
** of action to take.
|
|
*/
|
|
private const int OE_None = 0;//#define OE_None 0 /* There is no constraint to check */
|
|
private const int OE_Rollback = 1;//#define OE_Rollback 1 /* Fail the operation and rollback the transaction */
|
|
private const int OE_Abort = 2;//#define OE_Abort 2 /* Back out changes but do no rollback transaction */
|
|
private const int OE_Fail = 3;//#define OE_Fail 3 /* Stop the operation but leave all prior changes */
|
|
private const int OE_Ignore = 4;//#define OE_Ignore 4 /* Ignore the error. Do not do the INSERT or UPDATE */
|
|
private const int OE_Replace = 5;//#define OE_Replace 5 /* Delete existing record, then do INSERT or UPDATE */
|
|
|
|
private const int OE_Restrict = 6;//#define OE_Restrict 6 /* OE_Abort for IMMEDIATE, OE_Rollback for DEFERRED */
|
|
private const int OE_SetNull = 7;//#define OE_SetNull 7 /* Set the foreign key value to NULL */
|
|
private const int OE_SetDflt = 8;//#define OE_SetDflt 8 /* Set the foreign key value to its default */
|
|
private const int OE_Cascade = 9;//#define OE_Cascade 9 /* Cascade the changes */
|
|
|
|
private const int OE_Default = 99;//#define OE_Default 99 /* Do whatever the default action is */
|
|
|
|
/*
|
|
** An instance of the following structure is passed as the first
|
|
** argument to sqlite3VdbeKeyCompare and is used to control the
|
|
** comparison of the two index keys.
|
|
*/
|
|
|
|
public class KeyInfo
|
|
{
|
|
public sqlite3 db; /* The database connection */
|
|
public u8 enc; /* Text encoding - one of the SQLITE_UTF* values */
|
|
public u16 nField; /* Number of entries in aColl[] */
|
|
public u8[] aSortOrder; /* Sort order for each column. May be NULL */
|
|
public CollSeq[] aColl = new CollSeq[1]; /* Collating sequence for each term of the key */
|
|
|
|
public KeyInfo Copy()
|
|
{
|
|
return (KeyInfo)MemberwiseClone();
|
|
}
|
|
};
|
|
|
|
/*
|
|
** An instance of the following structure holds information about a
|
|
** single index record that has already been parsed out into individual
|
|
** values.
|
|
**
|
|
** A record is an object that contains one or more fields of data.
|
|
** Records are used to store the content of a table row and to store
|
|
** the key of an index. A blob encoding of a record is created by
|
|
** the OP_MakeRecord opcode of the VDBE and is disassembled by the
|
|
** OP_Column opcode.
|
|
**
|
|
** This structure holds a record that has already been disassembled
|
|
** into its constituent fields.
|
|
*/
|
|
|
|
public class UnpackedRecord
|
|
{
|
|
public KeyInfo pKeyInfo; /* Collation and sort-order information */
|
|
public u16 nField; /* Number of entries in apMem[] */
|
|
public u16 flags; /* Boolean settings. UNPACKED_... below */
|
|
public i64 rowid; /* Used by UNPACKED_PREFIX_SEARCH */
|
|
public Mem[] aMem; /* Values */
|
|
};
|
|
|
|
/*
|
|
** Allowed values of UnpackedRecord.flags
|
|
*/
|
|
|
|
//#define UNPACKED_NEED_FREE 0x0001 /* Memory is from sqlite3Malloc() */
|
|
//#define UNPACKED_NEED_DESTROY 0x0002 /* apMem[]s should all be destroyed */
|
|
//#define UNPACKED_IGNORE_ROWID 0x0004 /* Ignore trailing rowid on key1 */
|
|
//#define UNPACKED_INCRKEY 0x0008 /* Make this key an epsilon larger */
|
|
//#define UNPACKED_PREFIX_MATCH 0x0010 /* A prefix match is considered OK */
|
|
//#define UNPACKED_PREFIX_SEARCH 0x0020 /* A prefix match is considered OK */
|
|
private const int UNPACKED_NEED_FREE = 0x0001; /* Memory is from sqlite3Malloc() */
|
|
|
|
private const int UNPACKED_NEED_DESTROY = 0x0002; /* apMem[]s should all be destroyed */
|
|
private const int UNPACKED_IGNORE_ROWID = 0x0004; /* Ignore trailing rowid on key1 */
|
|
private const int UNPACKED_INCRKEY = 0x0008; /* Make this key an epsilon larger */
|
|
private const int UNPACKED_PREFIX_MATCH = 0x0010; /* A prefix match is considered OK */
|
|
private const int UNPACKED_PREFIX_SEARCH = 0x0020; /* A prefix match is considered OK */
|
|
|
|
/*
|
|
** Each SQL index is represented in memory by an
|
|
** instance of the following structure.
|
|
**
|
|
** The columns of the table that are to be indexed are described
|
|
** by the aiColumn[] field of this structure. For example, suppose
|
|
** we have the following table and index:
|
|
**
|
|
** CREATE TABLE Ex1(c1 int, c2 int, c3 text);
|
|
** CREATE INDEX Ex2 ON Ex1(c3,c1);
|
|
**
|
|
** In the Table structure describing Ex1, nCol==3 because there are
|
|
** three columns in the table. In the Index structure describing
|
|
** Ex2, nColumn==2 since 2 of the 3 columns of Ex1 are indexed.
|
|
** The value of aiColumn is {2, 0}. aiColumn[0]==2 because the
|
|
** first column to be indexed (c3) has an index of 2 in Ex1.aCol[].
|
|
** The second column to be indexed (c1) has an index of 0 in
|
|
** Ex1.aCol[], hence Ex2.aiColumn[1]==0.
|
|
**
|
|
** The Index.onError field determines whether or not the indexed columns
|
|
** must be unique and what to do if they are not. When Index.onError=OE_None,
|
|
** it means this is not a unique index. Otherwise it is a unique index
|
|
** and the value of Index.onError indicate the which conflict resolution
|
|
** algorithm to employ whenever an attempt is made to insert a non-unique
|
|
** element.
|
|
*/
|
|
|
|
public class Index
|
|
{
|
|
public string zName; /* Name of this index */
|
|
public int nColumn; /* Number of columns in the table used by this index */
|
|
public int[] aiColumn; /* Which columns are used by this index. 1st is 0 */
|
|
public int[] aiRowEst; /* Result of ANALYZE: Est. rows selected by each column */
|
|
public Table pTable; /* The SQL table being indexed */
|
|
public int tnum; /* Page containing root of this index in database file */
|
|
public u8 onError; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
|
|
public u8 autoIndex; /* True if is automatically created (ex: by UNIQUE) */
|
|
public u8 bUnordered; /* Use this index for == or IN queries only */
|
|
public string zColAff; /* String defining the affinity of each column */
|
|
public Index pNext; /* The next index associated with the same table */
|
|
public Schema pSchema; /* Schema containing this index */
|
|
public u8[] aSortOrder; /* Array of size Index.nColumn. True==DESC, False==ASC */
|
|
public string[] azColl; /* Array of collation sequence names for index */
|
|
public IndexSample[] aSample; /* Array of SQLITE_INDEX_SAMPLES samples */
|
|
|
|
public Index Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
Index cp = (Index)MemberwiseClone();
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** Each sample stored in the sqlite_stat2 table is represented in memory
|
|
** using a structure of this type.
|
|
*/
|
|
|
|
public class IndexSample
|
|
{
|
|
public struct _u
|
|
{ //union {
|
|
public string z; /* Value if eType is SQLITE_TEXT */
|
|
public byte[] zBLOB; /* Value if eType is SQLITE_BLOB */
|
|
public double r; /* Value if eType is SQLITE_FLOAT or SQLITE_INTEGER */
|
|
}
|
|
|
|
public _u u;
|
|
public u8 eType; /* SQLITE_NULL, SQLITE_INTEGER ... etc. */
|
|
public u8 nByte; /* Size in byte of text or blob. */
|
|
};
|
|
|
|
/*
|
|
** Each token coming out of the lexer is an instance of
|
|
** this structure. Tokens are also used as part of an expression.
|
|
**
|
|
** Note if Token.z==0 then Token.dyn and Token.n are undefined and
|
|
** may contain random values. Do not make any assumptions about Token.dyn
|
|
** and Token.n when Token.z==0.
|
|
*/
|
|
|
|
public class Token
|
|
{
|
|
#if DEBUG_CLASS_TOKEN || DEBUG_CLASS_ALL
|
|
public string _z; /* Text of the token. Not NULL-terminated! */
|
|
public bool dyn;// : 1; /* True for malloced memory, false for static */
|
|
public Int32 _n;// : 31; /* Number of characters in this token */
|
|
|
|
public string z
|
|
{
|
|
get { return _z; }
|
|
set { _z = value; }
|
|
}
|
|
|
|
public Int32 n
|
|
{
|
|
get { return _n; }
|
|
set { _n = value; }
|
|
}
|
|
#else
|
|
public string z; /* Text of the token. Not NULL-terminated! */
|
|
public Int32 n; /* Number of characters in this token */
|
|
#endif
|
|
|
|
public Token()
|
|
{
|
|
this.z = null;
|
|
this.n = 0;
|
|
}
|
|
|
|
public Token(string z, Int32 n)
|
|
{
|
|
this.z = z;
|
|
this.n = n;
|
|
}
|
|
|
|
public Token Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
Token cp = (Token)MemberwiseClone();
|
|
if (z == null || z.Length == 0)
|
|
cp.n = 0;
|
|
else
|
|
if (n > z.Length)
|
|
cp.n = z.Length;
|
|
return cp;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
** An instance of this structure contains information needed to generate
|
|
** code for a SELECT that contains aggregate functions.
|
|
**
|
|
** If Expr.op==TK_AGG_COLUMN or TK_AGG_FUNCTION then Expr.pAggInfo is a
|
|
** pointer to this structure. The Expr.iColumn field is the index in
|
|
** AggInfo.aCol[] or AggInfo.aFunc[] of information needed to generate
|
|
** code for that node.
|
|
**
|
|
** AggInfo.pGroupBy and AggInfo.aFunc.pExpr point to fields within the
|
|
** original Select structure that describes the SELECT statement. These
|
|
** fields do not need to be freed when deallocating the AggInfo structure.
|
|
*/
|
|
|
|
public class AggInfo_col
|
|
{ /* For each column used in source tables */
|
|
public Table pTab; /* Source table */
|
|
public int iTable; /* VdbeCursor number of the source table */
|
|
public int iColumn; /* Column number within the source table */
|
|
public int iSorterColumn; /* Column number in the sorting index */
|
|
public int iMem; /* Memory location that acts as accumulator */
|
|
public Expr pExpr; /* The original expression */
|
|
};
|
|
|
|
public class AggInfo_func
|
|
{ /* For each aggregate function */
|
|
public Expr pExpr; /* Expression encoding the function */
|
|
public FuncDef pFunc; /* The aggregate function implementation */
|
|
public int iMem; /* Memory location that acts as accumulator */
|
|
public int iDistinct; /* Ephemeral table used to enforce DISTINCT */
|
|
}
|
|
|
|
public class AggInfo
|
|
{
|
|
public u8 directMode; /* Direct rendering mode means take data directly
|
|
** from source tables rather than from accumulators */
|
|
public u8 useSortingIdx; /* In direct mode, reference the sorting index rather
|
|
** than the source table */
|
|
public int sortingIdx; /* VdbeCursor number of the sorting index */
|
|
public ExprList pGroupBy; /* The group by clause */
|
|
public int nSortingColumn; /* Number of columns in the sorting index */
|
|
public AggInfo_col[] aCol;
|
|
public int nColumn; /* Number of used entries in aCol[] */
|
|
public int nColumnAlloc; /* Number of slots allocated for aCol[] */
|
|
public int nAccumulator; /* Number of columns that show through to the output.
|
|
** Additional columns are used only as parameters to
|
|
** aggregate functions */
|
|
public AggInfo_func[] aFunc;
|
|
public int nFunc; /* Number of entries in aFunc[] */
|
|
public int nFuncAlloc; /* Number of slots allocated for aFunc[] */
|
|
|
|
public AggInfo Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
AggInfo cp = (AggInfo)MemberwiseClone();
|
|
if (pGroupBy != null)
|
|
cp.pGroupBy = pGroupBy.Copy();
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** The datatype ynVar is a signed integer, either 16-bit or 32-bit.
|
|
** Usually it is 16-bits. But if SQLITE_MAX_VARIABLE_NUMBER is greater
|
|
** than 32767 we have to make it 32-bit. 16-bit is preferred because
|
|
** it uses less memory in the Expr object, which is a big memory user
|
|
** in systems with lots of prepared statements. And few applications
|
|
** need more than about 10 or 20 variables. But some extreme users want
|
|
** to have prepared statements with over 32767 variables, and for them
|
|
** the option is available (at compile-time).
|
|
*/
|
|
//#if SQLITE_MAX_VARIABLE_NUMBER<=32767
|
|
//typedef i16 ynVar;
|
|
//#else
|
|
//typedef int ynVar;
|
|
//#endif
|
|
|
|
/*
|
|
** Each node of an expression in the parse tree is an instance
|
|
** of this structure.
|
|
**
|
|
** Expr.op is the opcode. The integer parser token codes are reused
|
|
** as opcodes here. For example, the parser defines TK_GE to be an integer
|
|
** code representing the ">=" operator. This same integer code is reused
|
|
** to represent the greater-than-or-equal-to operator in the expression
|
|
** tree.
|
|
**
|
|
** If the expression is an SQL literal (TK_INTEGER, TK_FLOAT, TK_BLOB,
|
|
** or TK_STRING), then Expr.token contains the text of the SQL literal. If
|
|
** the expression is a variable (TK_VARIABLE), then Expr.token contains the
|
|
** variable name. Finally, if the expression is an SQL function (TK_FUNCTION),
|
|
** then Expr.token contains the name of the function.
|
|
**
|
|
** Expr.pRight and Expr.pLeft are the left and right subexpressions of a
|
|
** binary operator. Either or both may be NULL.
|
|
**
|
|
** Expr.x.pList is a list of arguments if the expression is an SQL function,
|
|
** a CASE expression or an IN expression of the form "<lhs> IN (<y>, <z>...)".
|
|
** Expr.x.pSelect is used if the expression is a sub-select or an expression of
|
|
** the form "<lhs> IN (SELECT ...)". If the EP_xIsSelect bit is set in the
|
|
** Expr.flags mask, then Expr.x.pSelect is valid. Otherwise, Expr.x.pList is
|
|
** valid.
|
|
**
|
|
** An expression of the form ID or ID.ID refers to a column in a table.
|
|
** For such expressions, Expr.op is set to TK_COLUMN and Expr.iTable is
|
|
** the integer cursor number of a VDBE cursor pointing to that table and
|
|
** Expr.iColumn is the column number for the specific column. If the
|
|
** expression is used as a result in an aggregate SELECT, then the
|
|
** value is also stored in the Expr.iAgg column in the aggregate so that
|
|
** it can be accessed after all aggregates are computed.
|
|
**
|
|
** If the expression is an unbound variable marker (a question mark
|
|
** character '?' in the original SQL) then the Expr.iTable holds the index
|
|
** number for that variable.
|
|
**
|
|
** If the expression is a subquery then Expr.iColumn holds an integer
|
|
** register number containing the result of the subquery. If the
|
|
** subquery gives a constant result, then iTable is -1. If the subquery
|
|
** gives a different answer at different times during statement processing
|
|
** then iTable is the address of a subroutine that computes the subquery.
|
|
**
|
|
** If the Expr is of type OP_Column, and the table it is selecting from
|
|
** is a disk table or the "old.*" pseudo-table, then pTab points to the
|
|
** corresponding table definition.
|
|
**
|
|
** ALLOCATION NOTES:
|
|
**
|
|
** Expr objects can use a lot of memory space in database schema. To
|
|
** help reduce memory requirements, sometimes an Expr object will be
|
|
** truncated. And to reduce the number of memory allocations, sometimes
|
|
** two or more Expr objects will be stored in a single memory allocation,
|
|
** together with Expr.zToken strings.
|
|
**
|
|
** If the EP_Reduced and EP_TokenOnly flags are set when
|
|
** an Expr object is truncated. When EP_Reduced is set, then all
|
|
** the child Expr objects in the Expr.pLeft and Expr.pRight subtrees
|
|
** are contained within the same memory allocation. Note, however, that
|
|
** the subtrees in Expr.x.pList or Expr.x.pSelect are always separately
|
|
** allocated, regardless of whether or not EP_Reduced is set.
|
|
*/
|
|
|
|
public class Expr
|
|
{
|
|
#if DEBUG_CLASS_EXPR || DEBUG_CLASS_ALL
|
|
public u8 _op; /* Operation performed by this node */
|
|
public u8 op
|
|
{
|
|
get { return _op; }
|
|
set { _op = value; }
|
|
}
|
|
#else
|
|
public u8 op; /* Operation performed by this node */
|
|
#endif
|
|
public char affinity; /* The affinity of the column or 0 if not a column */
|
|
#if DEBUG_CLASS_EXPR || DEBUG_CLASS_ALL
|
|
public u16 _flags; /* Various flags. EP_* See below */
|
|
public u16 flags
|
|
{
|
|
get { return _flags; }
|
|
set { _flags = value; }
|
|
}
|
|
public struct _u
|
|
{
|
|
public string _zToken; /* Token value. Zero terminated and dequoted */
|
|
public string zToken
|
|
{
|
|
get { return _zToken; }
|
|
set { _zToken = value; }
|
|
}
|
|
public int iValue; /* Non-negative integer value if EP_IntValue */
|
|
}
|
|
|
|
#else
|
|
|
|
public struct _u
|
|
{
|
|
public string zToken; /* Token value. Zero terminated and dequoted */
|
|
public int iValue; /* Non-negative integer value if EP_IntValue */
|
|
}
|
|
|
|
public u16 flags; /* Various flags. EP_* See below */
|
|
#endif
|
|
public _u u;
|
|
|
|
/* If the EP_TokenOnly flag is set in the Expr.flags mask, then no
|
|
** space is allocated for the fields below this point. An attempt to
|
|
** access them will result in a segfault or malfunction.
|
|
*********************************************************************/
|
|
|
|
public Expr pLeft; /* Left subnode */
|
|
public Expr pRight; /* Right subnode */
|
|
|
|
public struct _x
|
|
{
|
|
public ExprList pList; /* Function arguments or in "<expr> IN (<expr-list)" */
|
|
public Select pSelect; /* Used for sub-selects and "<expr> IN (<select>)" */
|
|
}
|
|
|
|
public _x x;
|
|
public CollSeq pColl; /* The collation type of the column or 0 */
|
|
|
|
/* If the EP_Reduced flag is set in the Expr.flags mask, then no
|
|
** space is allocated for the fields below this point. An attempt to
|
|
** access them will result in a segfault or malfunction.
|
|
*********************************************************************/
|
|
|
|
public int iTable; /* TK_COLUMN: cursor number of table holding column
|
|
** TK_REGISTER: register number
|
|
** TK_TRIGGER: 1 -> new, 0 -> old */
|
|
public ynVar iColumn; /* TK_COLUMN: column index. -1 for rowid.
|
|
** TK_VARIABLE: variable number (always >= 1). */
|
|
public i16 iAgg; /* Which entry in pAggInfo->aCol[] or ->aFunc[] */
|
|
public i16 iRightJoinTable; /* If EP_FromJoin, the right table of the join */
|
|
public u8 flags2; /* Second set of flags. EP2_... */
|
|
public u8 op2; /* If a TK_REGISTER, the original value of Expr.op */
|
|
public AggInfo pAggInfo; /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */
|
|
public Table pTab; /* Table for TK_COLUMN expressions. */
|
|
#if SQLITE_MAX_EXPR_DEPTH //>0
|
|
public int nHeight; /* Height of the tree headed by this node */
|
|
public Table pZombieTab; /* List of Table objects to delete after code gen */
|
|
#endif
|
|
|
|
#if DEBUG_CLASS
|
|
public int op
|
|
{
|
|
get { return _op; }
|
|
set { _op = value; }
|
|
}
|
|
#endif
|
|
|
|
public void CopyFrom(Expr cf)
|
|
{
|
|
op = cf.op;
|
|
affinity = cf.affinity;
|
|
flags = cf.flags;
|
|
u = cf.u;
|
|
pColl = cf.pColl == null ? null : cf.pColl.Copy();
|
|
iTable = cf.iTable;
|
|
iColumn = cf.iColumn;
|
|
pAggInfo = cf.pAggInfo == null ? null : cf.pAggInfo.Copy();
|
|
iAgg = cf.iAgg;
|
|
iRightJoinTable = cf.iRightJoinTable;
|
|
flags2 = cf.flags2;
|
|
pTab = cf.pTab == null ? null : cf.pTab;
|
|
#if SQLITE_TEST || SQLITE_MAX_EXPR_DEPTH //SQLITE_MAX_EXPR_DEPTH>0
|
|
nHeight = cf.nHeight;
|
|
pZombieTab = cf.pZombieTab;
|
|
#endif
|
|
pLeft = cf.pLeft == null ? null : cf.pLeft.Copy();
|
|
pRight = cf.pRight == null ? null : cf.pRight.Copy();
|
|
x.pList = cf.x.pList == null ? null : cf.x.pList.Copy();
|
|
x.pSelect = cf.x.pSelect == null ? null : cf.x.pSelect.Copy();
|
|
}
|
|
|
|
public Expr Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
return Copy(flags);
|
|
}
|
|
|
|
public Expr Copy(int flag)
|
|
{
|
|
Expr cp = new Expr();
|
|
cp.op = op;
|
|
cp.affinity = affinity;
|
|
cp.flags = flags;
|
|
cp.u = u;
|
|
if ((flag & EP_TokenOnly) != 0)
|
|
return cp;
|
|
if (pLeft != null)
|
|
cp.pLeft = pLeft.Copy();
|
|
if (pRight != null)
|
|
cp.pRight = pRight.Copy();
|
|
cp.x = x;
|
|
cp.pColl = pColl;
|
|
if ((flag & EP_Reduced) != 0)
|
|
return cp;
|
|
cp.iTable = iTable;
|
|
cp.iColumn = iColumn;
|
|
cp.iAgg = iAgg;
|
|
cp.iRightJoinTable = iRightJoinTable;
|
|
cp.flags2 = flags2;
|
|
cp.op2 = op2;
|
|
cp.pAggInfo = pAggInfo;
|
|
cp.pTab = pTab;
|
|
#if SQLITE_MAX_EXPR_DEPTH //>0
|
|
cp.nHeight = nHeight;
|
|
cp.pZombieTab = pZombieTab;
|
|
#endif
|
|
return cp;
|
|
}
|
|
};
|
|
|
|
/*
|
|
** The following are the meanings of bits in the Expr.flags field.
|
|
*/
|
|
//#define EP_FromJoin 0x0001 /* Originated in ON or USING clause of a join */
|
|
//#define EP_Agg 0x0002 /* Contains one or more aggregate functions */
|
|
//#define EP_Resolved 0x0004 /* IDs have been resolved to COLUMNs */
|
|
//#define EP_Error 0x0008 /* Expression contains one or more errors */
|
|
//#define EP_Distinct 0x0010 /* Aggregate function with DISTINCT keyword */
|
|
//#define EP_VarSelect 0x0020 /* pSelect is correlated, not constant */
|
|
//#define EP_DblQuoted 0x0040 /* token.z was originally in "..." */
|
|
//#define EP_InfixFunc 0x0080 /* True for an infix function: LIKE, GLOB, etc */
|
|
//#define EP_ExpCollate 0x0100 /* Collating sequence specified explicitly */
|
|
//#define EP_FixedDest 0x0200 /* Result needed in a specific register */
|
|
//#define EP_IntValue 0x0400 /* Integer value contained in u.iValue */
|
|
//#define EP_xIsSelect 0x0800 /* x.pSelect is valid (otherwise x.pList is) */
|
|
|
|
//#define EP_Reduced 0x1000 /* Expr struct is EXPR_REDUCEDSIZE bytes only */
|
|
//#define EP_TokenOnly 0x2000 /* Expr struct is EXPR_TOKENONLYSIZE bytes only */
|
|
//#define EP_Static 0x4000 /* Held in memory not obtained from malloc() */
|
|
|
|
private const ushort EP_FromJoin = 0x0001;
|
|
private const ushort EP_Agg = 0x0002;
|
|
private const ushort EP_Resolved = 0x0004;
|
|
private const ushort EP_Error = 0x0008;
|
|
private const ushort EP_Distinct = 0x0010;
|
|
private const ushort EP_VarSelect = 0x0020;
|
|
private const ushort EP_DblQuoted = 0x0040;
|
|
private const ushort EP_InfixFunc = 0x0080;
|
|
private const ushort EP_ExpCollate = 0x0100;
|
|
private const ushort EP_FixedDest = 0x0200;
|
|
private const ushort EP_IntValue = 0x0400;
|
|
private const ushort EP_xIsSelect = 0x0800;
|
|
|
|
private const ushort EP_Reduced = 0x1000;
|
|
private const ushort EP_TokenOnly = 0x2000;
|
|
private const ushort EP_Static = 0x4000;
|
|
|
|
/*
|
|
** The following are the meanings of bits in the Expr.flags2 field.
|
|
*/
|
|
|
|
//#define EP2_MallocedToken 0x0001 /* Need to sqlite3DbFree() Expr.zToken */
|
|
//#define EP2_Irreducible 0x0002 /* Cannot EXPRDUP_REDUCE this Expr */
|
|
private const u8 EP2_MallocedToken = 0x0001;
|
|
|
|
private const u8 EP2_Irreducible = 0x0002;
|
|
|
|
/*
|
|
** The pseudo-routine sqlite3ExprSetIrreducible sets the EP2_Irreducible
|
|
** flag on an expression structure. This flag is used for VV&A only. The
|
|
** routine is implemented as a macro that only works when in debugging mode,
|
|
** so as not to burden production code.
|
|
*/
|
|
#if SQLITE_DEBUG
|
|
|
|
//# define ExprSetIrreducible(X) (X)->flags2 |= EP2_Irreducible
|
|
private static void ExprSetIrreducible(Expr X)
|
|
{
|
|
X.flags2 |= EP2_Irreducible;
|
|
}
|
|
|
|
#else
|
|
//# define ExprSetIrreducible(X)
|
|
static void ExprSetIrreducible( Expr X ) { }
|
|
#endif
|
|
|
|
/*
|
|
** These macros can be used to test, set, or clear bits in the
|
|
** Expr.flags field.
|
|
*/
|
|
|
|
//#define ExprHasProperty(E,P) (((E)->flags&(P))==(P))
|
|
private static bool ExprHasProperty(Expr E, int P)
|
|
{
|
|
return (E.flags & P) == P;
|
|
}
|
|
|
|
//#define ExprHasAnyProperty(E,P) (((E)->flags&(P))!=0)
|
|
private static bool ExprHasAnyProperty(Expr E, int P)
|
|
{
|
|
return (E.flags & P) != 0;
|
|
}
|
|
|
|
//#define ExprSetProperty(E,P) (E)->flags|=(P)
|
|
private static void ExprSetProperty(Expr E, int P)
|
|
{
|
|
E.flags = (ushort)(E.flags | P);
|
|
}
|
|
|
|
//#define ExprClearProperty(E,P) (E)->flags&=~(P)
|
|
private static void ExprClearProperty(Expr E, int P)
|
|
{
|
|
E.flags = (ushort)(E.flags & ~P);
|
|
}
|
|
|
|
/*
|
|
** Macros to determine the number of bytes required by a normal Expr
|
|
** struct, an Expr struct with the EP_Reduced flag set in Expr.flags
|
|
** and an Expr struct with the EP_TokenOnly flag set.
|
|
*/
|
|
//#define EXPR_FULLSIZE sizeof(Expr) /* Full size */
|
|
//#define EXPR_REDUCEDSIZE offsetof(Expr,iTable) /* Common features */
|
|
//#define EXPR_TOKENONLYSIZE offsetof(Expr,pLeft) /* Fewer features */
|
|
|
|
// We don't use these in C#, but define them anyway,
|
|
private const int EXPR_FULLSIZE = 48;
|
|
|
|
private const int EXPR_REDUCEDSIZE = 24;
|
|
private const int EXPR_TOKENONLYSIZE = 8;
|
|
|
|
/*
|
|
** Flags passed to the sqlite3ExprDup() function. See the header comment
|
|
** above sqlite3ExprDup() for details.
|
|
*/
|
|
|
|
//#define EXPRDUP_REDUCE 0x0001 /* Used reduced-size Expr nodes */
|
|
private const int EXPRDUP_REDUCE = 0x0001;
|
|
|
|
/*
|
|
** A list of expressions. Each expression may optionally have a
|
|
** name. An expr/name combination can be used in several ways, such
|
|
** as the list of "expr AS ID" fields following a "SELECT" or in the
|
|
** list of "ID = expr" items in an UPDATE. A list of expressions can
|
|
** also be used as the argument to a function, in which case the a.zName
|
|
** field is not used.
|
|
*/
|
|
|
|
public class ExprList_item
|
|
{
|
|
public Expr pExpr; /* The list of expressions */
|
|
public string zName; /* Token associated with this expression */
|
|
public string zSpan; /* Original text of the expression */
|
|
public u8 sortOrder; /* 1 for DESC or 0 for ASC */
|
|
public u8 done; /* A flag to indicate when processing is finished */
|
|
public u16 iCol; /* For ORDER BY, column number in result set */
|
|
public u16 iAlias; /* Index into Parse.aAlias[] for zName */
|
|
}
|
|
|
|
public class ExprList
|
|
{
|
|
public int nExpr; /* Number of expressions on the list */
|
|
public int nAlloc; /* Number of entries allocated below */
|
|
public int iECursor; /* VDBE VdbeCursor associated with this ExprList */
|
|
public ExprList_item[] a; /* One entry for each expression */
|
|
|
|
public ExprList Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
ExprList cp = (ExprList)MemberwiseClone();
|
|
a.CopyTo(cp.a, 0);
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** An instance of this structure is used by the parser to record both
|
|
** the parse tree for an expression and the span of input text for an
|
|
** expression.
|
|
*/
|
|
|
|
public class ExprSpan
|
|
{
|
|
public Expr pExpr; /* The expression parse tree */
|
|
public string zStart; /* First character of input text */
|
|
public string zEnd; /* One character past the end of input text */
|
|
};
|
|
|
|
/*
|
|
** An instance of this structure can hold a simple list of identifiers,
|
|
** such as the list "a,b,c" in the following statements:
|
|
**
|
|
** INSERT INTO t(a,b,c) VALUES ...;
|
|
** CREATE INDEX idx ON t(a,b,c);
|
|
** CREATE TRIGGER trig BEFORE UPDATE ON t(a,b,c) ...;
|
|
**
|
|
** The IdList.a.idx field is used when the IdList represents the list of
|
|
** column names after a table name in an INSERT statement. In the statement
|
|
**
|
|
** INSERT INTO t(a,b,c) ...
|
|
**
|
|
** If "a" is the k-th column of table "t", then IdList.a[0].idx==k.
|
|
*/
|
|
|
|
public class IdList_item
|
|
{
|
|
public string zName; /* Name of the identifier */
|
|
public int idx; /* Index in some Table.aCol[] of a column named zName */
|
|
}
|
|
|
|
public class IdList
|
|
{
|
|
public IdList_item[] a;
|
|
public int nId; /* Number of identifiers on the list */
|
|
public int nAlloc; /* Number of entries allocated for a[] below */
|
|
|
|
public IdList Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
IdList cp = (IdList)MemberwiseClone();
|
|
a.CopyTo(cp.a, 0);
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** The bitmask datatype defined below is used for various optimizations.
|
|
**
|
|
** Changing this from a 64-bit to a 32-bit type limits the number of
|
|
** tables in a join to 32 instead of 64. But it also reduces the size
|
|
** of the library by 738 bytes on ix86.
|
|
*/
|
|
//typedef u64 Bitmask;
|
|
|
|
/*
|
|
** The number of bits in a Bitmask. "BMS" means "BitMask Size".
|
|
*/
|
|
|
|
//#define BMS ((int)(sizeof(Bitmask)*8))
|
|
private const int BMS = ((int)(sizeof(Bitmask) * 8));
|
|
|
|
/*
|
|
** The following structure describes the FROM clause of a SELECT statement.
|
|
** Each table or subquery in the FROM clause is a separate element of
|
|
** the SrcList.a[] array.
|
|
**
|
|
** With the addition of multiple database support, the following structure
|
|
** can also be used to describe a particular table such as the table that
|
|
** is modified by an INSERT, DELETE, or UPDATE statement. In standard SQL,
|
|
** such a table must be a simple name: ID. But in SQLite, the table can
|
|
** now be identified by a database name, a dot, then the table name: ID.ID.
|
|
**
|
|
** The jointype starts out showing the join type between the current table
|
|
** and the next table on the list. The parser builds the list this way.
|
|
** But sqlite3SrcListShiftJoinType() later shifts the jointypes so that each
|
|
** jointype expresses the join between the table and the previous table.
|
|
**
|
|
** In the colUsed field, the high-order bit (bit 63) is set if the table
|
|
** contains more than 63 columns and the 64-th or later column is used.
|
|
*/
|
|
|
|
public class SrcList_item
|
|
{
|
|
public string zDatabase; /* Name of database holding this table */
|
|
public string zName; /* Name of the table */
|
|
public string zAlias; /* The "B" part of a "A AS B" phrase. zName is the "A" */
|
|
public Table pTab; /* An SQL table corresponding to zName */
|
|
public Select pSelect; /* A SELECT statement used in place of a table name */
|
|
public u8 isPopulated; /* Temporary table associated with SELECT is populated */
|
|
public u8 jointype; /* Type of join between this able and the previous */
|
|
public u8 notIndexed; /* True if there is a NOT INDEXED clause */
|
|
#if !SQLITE_OMIT_EXPLAIN
|
|
public u8 iSelectId; /* If pSelect!=0, the id of the sub-select in EQP */
|
|
#endif
|
|
public int iCursor; /* The VDBE cursor number used to access this table */
|
|
public Expr pOn; /* The ON clause of a join */
|
|
public IdList pUsing; /* The USING clause of a join */
|
|
public Bitmask colUsed; /* Bit N (1<<N) set if column N of pTab is used */
|
|
public string zIndex; /* Identifier from "INDEXED BY <zIndex>" clause */
|
|
public Index pIndex; /* Index structure corresponding to zIndex, if any */
|
|
}
|
|
|
|
public class SrcList
|
|
{
|
|
public i16 nSrc; /* Number of tables or subqueries in the FROM clause */
|
|
public i16 nAlloc; /* Number of entries allocated in a[] below */
|
|
public SrcList_item[] a;/* One entry for each identifier on the list */
|
|
|
|
public SrcList Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
SrcList cp = (SrcList)MemberwiseClone();
|
|
if (a != null)
|
|
a.CopyTo(cp.a, 0);
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** Permitted values of the SrcList.a.jointype field
|
|
*/
|
|
private const int JT_INNER = 0x0001; //#define JT_INNER 0x0001 /* Any kind of inner or cross join */
|
|
private const int JT_CROSS = 0x0002; //#define JT_CROSS 0x0002 /* Explicit use of the CROSS keyword */
|
|
private const int JT_NATURAL = 0x0004; //#define JT_NATURAL 0x0004 /* True for a "natural" join */
|
|
private const int JT_LEFT = 0x0008; //#define JT_LEFT 0x0008 /* Left outer join */
|
|
private const int JT_RIGHT = 0x0010; //#define JT_RIGHT 0x0010 /* Right outer join */
|
|
private const int JT_OUTER = 0x0020; //#define JT_OUTER 0x0020 /* The "OUTER" keyword is present */
|
|
private const int JT_ERROR = 0x0040; //#define JT_ERROR 0x0040 /* unknown or unsupported join type */
|
|
|
|
/*
|
|
** A WherePlan object holds information that describes a lookup
|
|
** strategy.
|
|
**
|
|
** This object is intended to be opaque outside of the where.c module.
|
|
** It is included here only so that that compiler will know how big it
|
|
** is. None of the fields in this object should be used outside of
|
|
** the where.c module.
|
|
**
|
|
** Within the union, pIdx is only used when wsFlags&WHERE_INDEXED is true.
|
|
** pTerm is only used when wsFlags&WHERE_MULTI_OR is true. And pVtabIdx
|
|
** is only used when wsFlags&WHERE_VIRTUALTABLE is true. It is never the
|
|
** case that more than one of these conditions is true.
|
|
*/
|
|
|
|
public class WherePlan
|
|
{
|
|
public u32 wsFlags; /* WHERE_* flags that describe the strategy */
|
|
public u32 nEq; /* Number of == constraints */
|
|
public double nRow; /* Estimated number of rows (for EQP) */
|
|
|
|
public class _u
|
|
{
|
|
public Index pIdx; /* Index when WHERE_INDEXED is true */
|
|
public WhereTerm pTerm; /* WHERE clause term for OR-search */
|
|
public sqlite3_index_info pVtabIdx; /* Virtual table index to use */
|
|
}
|
|
|
|
public _u u = new _u();
|
|
|
|
public void Clear()
|
|
{
|
|
wsFlags = 0;
|
|
nEq = 0;
|
|
nRow = 0;
|
|
u.pIdx = null;
|
|
u.pTerm = null;
|
|
u.pVtabIdx = null;
|
|
}
|
|
};
|
|
|
|
/*
|
|
** For each nested loop in a WHERE clause implementation, the WhereInfo
|
|
** structure contains a single instance of this structure. This structure
|
|
** is intended to be private the the where.c module and should not be
|
|
** access or modified by other modules.
|
|
**
|
|
** The pIdxInfo field is used to help pick the best index on a
|
|
** virtual table. The pIdxInfo pointer contains indexing
|
|
** information for the i-th table in the FROM clause before reordering.
|
|
** All the pIdxInfo pointers are freed by whereInfoFree() in where.c.
|
|
** All other information in the i-th WhereLevel object for the i-th table
|
|
** after FROM clause ordering.
|
|
*/
|
|
|
|
public class InLoop
|
|
{
|
|
public int iCur; /* The VDBE cursor used by this IN operator */
|
|
public int addrInTop; /* Top of the IN loop */
|
|
}
|
|
|
|
public class WhereLevel
|
|
{
|
|
public WherePlan plan = new WherePlan(); /* query plan for this element of the FROM clause */
|
|
public int iLeftJoin; /* Memory cell used to implement LEFT OUTER JOIN */
|
|
public int iTabCur; /* The VDBE cursor used to access the table */
|
|
public int iIdxCur; /* The VDBE cursor used to access pIdx */
|
|
public int addrBrk; /* Jump here to break out of the loop */
|
|
public int addrNxt; /* Jump here to start the next IN combination */
|
|
public int addrCont; /* Jump here to continue with the next loop cycle */
|
|
public int addrFirst; /* First instruction of interior of the loop */
|
|
public u8 iFrom; /* Which entry in the FROM clause */
|
|
public u8 op, p5; /* Opcode and P5 of the opcode that ends the loop */
|
|
public int p1, p2; /* Operands of the opcode used to ends the loop */
|
|
|
|
public class _u
|
|
{
|
|
public class __in /* Information that depends on plan.wsFlags */
|
|
{
|
|
public int nIn; /* Number of entries in aInLoop[] */
|
|
public InLoop[] aInLoop; /* Information about each nested IN operator */
|
|
}
|
|
|
|
public __in _in = new __in(); /* Used when plan.wsFlags&WHERE_IN_ABLE */
|
|
}
|
|
|
|
public _u u = new _u();
|
|
|
|
/* The following field is really not part of the current level. But
|
|
** we need a place to cache virtual table index information for each
|
|
** virtual table in the FROM clause and the WhereLevel structure is
|
|
** a convenient place since there is one WhereLevel for each FROM clause
|
|
** element.
|
|
*/
|
|
public sqlite3_index_info pIdxInfo; /* Index info for n-th source table */
|
|
};
|
|
|
|
/*
|
|
** Flags appropriate for the wctrlFlags parameter of sqlite3WhereBegin()
|
|
** and the WhereInfo.wctrlFlags member.
|
|
*/
|
|
|
|
//#define WHERE_ORDERBY_NORMAL 0x0000 /* No-op */
|
|
//#define WHERE_ORDERBY_MIN 0x0001 /* ORDER BY processing for min() func */
|
|
//#define WHERE_ORDERBY_MAX 0x0002 /* ORDER BY processing for max() func */
|
|
//#define WHERE_ONEPASS_DESIRED 0x0004 /* Want to do one-pass UPDATE/DELETE */
|
|
//#define WHERE_DUPLICATES_OK 0x0008 /* Ok to return a row more than once */
|
|
//#define WHERE_OMIT_OPEN 0x0010 /* Table cursors are already open */
|
|
//#define WHERE_OMIT_CLOSE 0x0020 /* Omit close of table & index cursors */
|
|
//#define WHERE_FORCE_TABLE 0x0040 /* Do not use an index-only search */
|
|
//#define WHERE_ONETABLE_ONLY 0x0080 /* Only code the 1st table in pTabList */
|
|
private const int WHERE_ORDERBY_NORMAL = 0x0000;
|
|
|
|
private const int WHERE_ORDERBY_MIN = 0x0001;
|
|
private const int WHERE_ORDERBY_MAX = 0x0002;
|
|
private const int WHERE_ONEPASS_DESIRED = 0x0004;
|
|
private const int WHERE_DUPLICATES_OK = 0x0008;
|
|
private const int WHERE_OMIT_OPEN = 0x0010;
|
|
private const int WHERE_OMIT_CLOSE = 0x0020;
|
|
private const int WHERE_FORCE_TABLE = 0x0040;
|
|
private const int WHERE_ONETABLE_ONLY = 0x0080;
|
|
|
|
/*
|
|
** The WHERE clause processing routine has two halves. The
|
|
** first part does the start of the WHERE loop and the second
|
|
** half does the tail of the WHERE loop. An instance of
|
|
** this structure is returned by the first half and passed
|
|
** into the second half to give some continuity.
|
|
*/
|
|
|
|
public class WhereInfo
|
|
{
|
|
public Parse pParse; /* Parsing and code generating context */
|
|
public u16 wctrlFlags; /* Flags originally passed to sqlite3WhereBegin() */
|
|
public u8 okOnePass; /* Ok to use one-pass algorithm for UPDATE or DELETE */
|
|
public u8 untestedTerms; /* Not all WHERE terms resolved by outer loop */
|
|
public SrcList pTabList; /* List of tables in the join */
|
|
public int iTop; /* The very beginning of the WHERE loop */
|
|
public int iContinue; /* Jump here to continue with next record */
|
|
public int iBreak; /* Jump here to break out of the loop */
|
|
public int nLevel; /* Number of nested loop */
|
|
public WhereClause pWC; /* Decomposition of the WHERE clause */
|
|
public double savedNQueryLoop; /* pParse->nQueryLoop outside the WHERE loop */
|
|
public double nRowOut; /* Estimated number of output rows */
|
|
public WhereLevel[] a = new WhereLevel[] { new WhereLevel() }; /* Information about each nest loop in the WHERE */
|
|
};
|
|
|
|
/*
|
|
** A NameContext defines a context in which to resolve table and column
|
|
** names. The context consists of a list of tables (the pSrcList) field and
|
|
** a list of named expression (pEList). The named expression list may
|
|
** be NULL. The pSrc corresponds to the FROM clause of a SELECT or
|
|
** to the table being operated on by INSERT, UPDATE, or DELETE. The
|
|
** pEList corresponds to the result set of a SELECT and is NULL for
|
|
** other statements.
|
|
**
|
|
** NameContexts can be nested. When resolving names, the inner-most
|
|
** context is searched first. If no match is found, the next outer
|
|
** context is checked. If there is still no match, the next context
|
|
** is checked. This process continues until either a match is found
|
|
** or all contexts are check. When a match is found, the nRef member of
|
|
** the context containing the match is incremented.
|
|
**
|
|
** Each subquery gets a new NameContext. The pNext field points to the
|
|
** NameContext in the parent query. Thus the process of scanning the
|
|
** NameContext list corresponds to searching through successively outer
|
|
** subqueries looking for a match.
|
|
*/
|
|
|
|
public class NameContext
|
|
{
|
|
public Parse pParse; /* The parser */
|
|
public SrcList pSrcList; /* One or more tables used to resolve names */
|
|
public ExprList pEList; /* Optional list of named expressions */
|
|
public int nRef; /* Number of names resolved by this context */
|
|
public int nErr; /* Number of errors encountered while resolving names */
|
|
public u8 allowAgg; /* Aggregate functions allowed here */
|
|
public u8 hasAgg; /* True if aggregates are seen */
|
|
public u8 isCheck; /* True if resolving names in a CHECK constraint */
|
|
public int nDepth; /* Depth of subquery recursion. 1 for no recursion */
|
|
public AggInfo pAggInfo; /* Information about aggregates at this level */
|
|
public NameContext pNext; /* Next outer name context. NULL for outermost */
|
|
};
|
|
|
|
/*
|
|
** An instance of the following structure contains all information
|
|
** needed to generate code for a single SELECT statement.
|
|
**
|
|
** nLimit is set to -1 if there is no LIMIT clause. nOffset is set to 0.
|
|
** If there is a LIMIT clause, the parser sets nLimit to the value of the
|
|
** limit and nOffset to the value of the offset (or 0 if there is not
|
|
** offset). But later on, nLimit and nOffset become the memory locations
|
|
** in the VDBE that record the limit and offset counters.
|
|
**
|
|
** addrOpenEphm[] entries contain the address of OP_OpenEphemeral opcodes.
|
|
** These addresses must be stored so that we can go back and fill in
|
|
** the P4_KEYINFO and P2 parameters later. Neither the KeyInfo nor
|
|
** the number of columns in P2 can be computed at the same time
|
|
** as the OP_OpenEphm instruction is coded because not
|
|
** enough information about the compound query is known at that point.
|
|
** The KeyInfo for addrOpenTran[0] and [1] contains collating sequences
|
|
** for the result set. The KeyInfo for addrOpenTran[2] contains collating
|
|
** sequences for the ORDER BY clause.
|
|
*/
|
|
|
|
public class Select
|
|
{
|
|
public ExprList pEList; /* The fields of the result */
|
|
public u8 op; /* One of: TK_UNION TK_ALL TK_INTERSECT TK_EXCEPT */
|
|
public char affinity; /* MakeRecord with this affinity for SRT_Set */
|
|
public u16 selFlags; /* Various SF_* values */
|
|
public SrcList pSrc; /* The FROM clause */
|
|
public Expr pWhere; /* The WHERE clause */
|
|
public ExprList pGroupBy; /* The GROUP BY clause */
|
|
public Expr pHaving; /* The HAVING clause */
|
|
public ExprList pOrderBy; /* The ORDER BY clause */
|
|
public Select pPrior; /* Prior select in a compound select statement */
|
|
public Select pNext; /* Next select to the left in a compound */
|
|
public Select pRightmost; /* Right-most select in a compound select statement */
|
|
public Expr pLimit; /* LIMIT expression. NULL means not used. */
|
|
public Expr pOffset; /* OFFSET expression. NULL means not used. */
|
|
public int iLimit;
|
|
public int iOffset; /* Memory registers holding LIMIT & OFFSET counters */
|
|
public int[] addrOpenEphm = new int[3]; /* OP_OpenEphem opcodes related to this select */
|
|
public double nSelectRow; /* Estimated number of result rows */
|
|
|
|
public Select Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
Select cp = (Select)MemberwiseClone();
|
|
if (pEList != null)
|
|
cp.pEList = pEList.Copy();
|
|
if (pSrc != null)
|
|
cp.pSrc = pSrc.Copy();
|
|
if (pWhere != null)
|
|
cp.pWhere = pWhere.Copy();
|
|
if (pGroupBy != null)
|
|
cp.pGroupBy = pGroupBy.Copy();
|
|
if (pHaving != null)
|
|
cp.pHaving = pHaving.Copy();
|
|
if (pOrderBy != null)
|
|
cp.pOrderBy = pOrderBy.Copy();
|
|
if (pPrior != null)
|
|
cp.pPrior = pPrior.Copy();
|
|
if (pNext != null)
|
|
cp.pNext = pNext.Copy();
|
|
if (pRightmost != null)
|
|
cp.pRightmost = pRightmost.Copy();
|
|
if (pLimit != null)
|
|
cp.pLimit = pLimit.Copy();
|
|
if (pOffset != null)
|
|
cp.pOffset = pOffset.Copy();
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** Allowed values for Select.selFlags. The "SF" prefix stands for
|
|
** "Select Flag".
|
|
*/
|
|
|
|
//#define SF_Distinct 0x0001 /* Output should be DISTINCT */
|
|
//#define SF_Resolved 0x0002 /* Identifiers have been resolved */
|
|
//#define SF_Aggregate 0x0004 /* Contains aggregate functions */
|
|
//#define SF_UsesEphemeral 0x0008 /* Uses the OpenEphemeral opcode */
|
|
//#define SF_Expanded 0x0010 /* sqlite3SelectExpand() called on this */
|
|
//#define SF_HasTypeInfo 0x0020 /* FROM subqueries have Table metadata */
|
|
private const int SF_Distinct = 0x0001; /* Output should be DISTINCT */
|
|
|
|
private const int SF_Resolved = 0x0002; /* Identifiers have been resolved */
|
|
private const int SF_Aggregate = 0x0004; /* Contains aggregate functions */
|
|
private const int SF_UsesEphemeral = 0x0008; /* Uses the OpenEphemeral opcode */
|
|
private const int SF_Expanded = 0x0010; /* sqlite3SelectExpand() called on this */
|
|
private const int SF_HasTypeInfo = 0x0020; /* FROM subqueries have Table metadata */
|
|
|
|
/*
|
|
** The results of a select can be distributed in several ways. The
|
|
** "SRT" prefix means "SELECT Result Type".
|
|
*/
|
|
private const int SRT_Union = 1;//#define SRT_Union 1 /* Store result as keys in an index */
|
|
private const int SRT_Except = 2;//#define SRT_Except 2 /* Remove result from a UNION index */
|
|
private const int SRT_Exists = 3;//#define SRT_Exists 3 /* Store 1 if the result is not empty */
|
|
private const int SRT_Discard = 4;//#define SRT_Discard 4 /* Do not save the results anywhere */
|
|
|
|
/* The ORDER BY clause is ignored for all of the above */
|
|
//#define IgnorableOrderby(X) ((X->eDest)<=SRT_Discard)
|
|
|
|
private const int SRT_Output = 5;//#define SRT_Output 5 /* Output each row of result */
|
|
private const int SRT_Mem = 6;//#define SRT_Mem 6 /* Store result in a memory cell */
|
|
private const int SRT_Set = 7;//#define SRT_Set 7 /* Store results as keys in an index */
|
|
private const int SRT_Table = 8;//#define SRT_Table 8 /* Store result as data with an automatic rowid */
|
|
private const int SRT_EphemTab = 9;//#define SRT_EphemTab 9 /* Create transient tab and store like SRT_Table /
|
|
private const int SRT_Coroutine = 10;//#define SRT_Coroutine 10 /* Generate a single row of result */
|
|
|
|
/*
|
|
** A structure used to customize the behavior of sqlite3Select(). See
|
|
** comments above sqlite3Select() for details.
|
|
*/
|
|
|
|
//typedef struct SelectDest SelectDest;
|
|
public class SelectDest
|
|
{
|
|
public u8 eDest; /* How to dispose of the results */
|
|
public char affinity; /* Affinity used when eDest==SRT_Set */
|
|
public int iParm; /* A parameter used by the eDest disposal method */
|
|
public int iMem; /* Base register where results are written */
|
|
public int nMem; /* Number of registers allocated */
|
|
|
|
public SelectDest()
|
|
{
|
|
this.eDest = 0;
|
|
this.affinity = '\0';
|
|
this.iParm = 0;
|
|
this.iMem = 0;
|
|
this.nMem = 0;
|
|
}
|
|
|
|
public SelectDest(u8 eDest, char affinity, int iParm)
|
|
{
|
|
this.eDest = eDest;
|
|
this.affinity = affinity;
|
|
this.iParm = iParm;
|
|
this.iMem = 0;
|
|
this.nMem = 0;
|
|
}
|
|
|
|
public SelectDest(u8 eDest, char affinity, int iParm, int iMem, int nMem)
|
|
{
|
|
this.eDest = eDest;
|
|
this.affinity = affinity;
|
|
this.iParm = iParm;
|
|
this.iMem = iMem;
|
|
this.nMem = nMem;
|
|
}
|
|
};
|
|
|
|
/*
|
|
** During code generation of statements that do inserts into AUTOINCREMENT
|
|
** tables, the following information is attached to the Table.u.autoInc.p
|
|
** pointer of each autoincrement table to record some side information that
|
|
** the code generator needs. We have to keep per-table autoincrement
|
|
** information in case inserts are down within triggers. Triggers do not
|
|
** normally coordinate their activities, but we do need to coordinate the
|
|
** loading and saving of autoincrement information.
|
|
*/
|
|
|
|
public class AutoincInfo
|
|
{
|
|
public AutoincInfo pNext; /* Next info block in a list of them all */
|
|
public Table pTab; /* Table this info block refers to */
|
|
public int iDb; /* Index in sqlite3.aDb[] of database holding pTab */
|
|
public int regCtr; /* Memory register holding the rowid counter */
|
|
};
|
|
|
|
/*
|
|
** Size of the column cache
|
|
*/
|
|
#if !SQLITE_N_COLCACHE
|
|
|
|
//# define SQLITE_N_COLCACHE 10
|
|
private const int SQLITE_N_COLCACHE = 10;
|
|
|
|
#endif
|
|
|
|
/*
|
|
** At least one instance of the following structure is created for each
|
|
** trigger that may be fired while parsing an INSERT, UPDATE or DELETE
|
|
** statement. All such objects are stored in the linked list headed at
|
|
** Parse.pTriggerPrg and deleted once statement compilation has been
|
|
** completed.
|
|
**
|
|
** A Vdbe sub-program that implements the body and WHEN clause of trigger
|
|
** TriggerPrg.pTrigger, assuming a default ON CONFLICT clause of
|
|
** TriggerPrg.orconf, is stored in the TriggerPrg.pProgram variable.
|
|
** The Parse.pTriggerPrg list never contains two entries with the same
|
|
** values for both pTrigger and orconf.
|
|
**
|
|
** The TriggerPrg.aColmask[0] variable is set to a mask of old.* columns
|
|
** accessed (or set to 0 for triggers fired as a result of INSERT
|
|
** statements). Similarly, the TriggerPrg.aColmask[1] variable is set to
|
|
** a mask of new.* columns used by the program.
|
|
*/
|
|
|
|
public class TriggerPrg
|
|
{
|
|
public Trigger pTrigger; /* Trigger this program was coded from */
|
|
public int orconf; /* Default ON CONFLICT policy */
|
|
public SubProgram pProgram; /* Program implementing pTrigger/orconf */
|
|
public u32[] aColmask = new u32[2]; /* Masks of old.*, new.* columns accessed */
|
|
public TriggerPrg pNext; /* Next entry in Parse.pTriggerPrg list */
|
|
};
|
|
|
|
/*
|
|
** The yDbMask datatype for the bitmask of all attached databases.
|
|
*/
|
|
//#if SQLITE_MAX_ATTACHED>30
|
|
// typedef sqlite3_uint64 yDbMask;
|
|
//#else
|
|
// typedef unsigned int yDbMask;
|
|
//#endif
|
|
|
|
/*
|
|
** An SQL parser context. A copy of this structure is passed through
|
|
** the parser and down into all the parser action routine in order to
|
|
** carry around information that is global to the entire parse.
|
|
**
|
|
** The structure is divided into two parts. When the parser and code
|
|
** generate call themselves recursively, the first part of the structure
|
|
** is constant but the second part is reset at the beginning and end of
|
|
** each recursion.
|
|
**
|
|
** The nTableLock and aTableLock variables are only used if the shared-cache
|
|
** feature is enabled (if sqlite3Tsd()->useSharedData is true). They are
|
|
** used to store the set of table-locks required by the statement being
|
|
** compiled. Function sqlite3TableLock() is used to add entries to the
|
|
** list.
|
|
*/
|
|
|
|
public class yColCache
|
|
{
|
|
public int iTable; /* Table cursor number */
|
|
public int iColumn; /* Table column number */
|
|
public u8 tempReg; /* iReg is a temp register that needs to be freed */
|
|
public int iLevel; /* Nesting level */
|
|
public int iReg; /* Reg with value of this column. 0 means none. */
|
|
public int lru; /* Least recently used entry has the smallest value */
|
|
}
|
|
|
|
public class Parse
|
|
{
|
|
public sqlite3 db; /* The main database structure */
|
|
public int rc; /* Return code from execution */
|
|
public string zErrMsg; /* An error message */
|
|
public Vdbe pVdbe; /* An engine for executing database bytecode */
|
|
public u8 colNamesSet; /* TRUE after OP_ColumnName has been issued to pVdbe */
|
|
public u8 nameClash; /* A permanent table name clashes with temp table name */
|
|
public u8 checkSchema; /* Causes schema cookie check after an error */
|
|
public u8 nested; /* Number of nested calls to the parser/code generator */
|
|
public u8 parseError; /* True after a parsing error. Ticket #1794 */
|
|
public u8 nTempReg; /* Number of temporary registers in aTempReg[] */
|
|
public u8 nTempInUse; /* Number of aTempReg[] currently checked out */
|
|
public int[] aTempReg; /* Holding area for temporary registers */
|
|
public int nRangeReg; /* Size of the temporary register block */
|
|
public int iRangeReg; /* First register in temporary register block */
|
|
public int nErr; /* Number of errors seen */
|
|
public int nTab; /* Number of previously allocated VDBE cursors */
|
|
public int nMem; /* Number of memory cells used so far */
|
|
public int nSet; /* Number of sets used so far */
|
|
public int ckBase; /* Base register of data during check constraints */
|
|
public int iCacheLevel; /* ColCache valid when aColCache[].iLevel<=iCacheLevel */
|
|
public int iCacheCnt; /* Counter used to generate aColCache[].lru values */
|
|
public u8 nColCache; /* Number of entries in the column cache */
|
|
public u8 iColCache; /* Next entry of the cache to replace */
|
|
public yColCache[] aColCache;/* One for each valid column cache entry */
|
|
public yDbMask writeMask; /* Start a write transaction on these databases */
|
|
public yDbMask cookieMask; /* Bitmask of schema verified databases */
|
|
public u8 isMultiWrite; /* True if statement may affect/insert multiple rows */
|
|
public u8 mayAbort; /* True if statement may throw an ABORT exception */
|
|
public int cookieGoto; /* Address of OP_Goto to cookie verifier subroutine */
|
|
public int[] cookieValue; /* Values of cookies to verify */
|
|
#if !SQLITE_OMIT_SHARED_CACHE
|
|
public int nTableLock; /* Number of locks in aTableLock */
|
|
public TableLock[] aTableLock; /* Required table locks for shared-cache mode */
|
|
#endif
|
|
public int regRowid; /* Register holding rowid of CREATE TABLE entry */
|
|
public int regRoot; /* Register holding root page number for new objects */
|
|
public AutoincInfo pAinc; /* Information about AUTOINCREMENT counters */
|
|
public int nMaxArg; /* Max args passed to user function by sub-program */
|
|
|
|
/* Information used while coding trigger programs. */
|
|
public Parse pToplevel; /* Parse structure for main program (or NULL) */
|
|
public Table pTriggerTab; /* Table triggers are being coded for */
|
|
public u32 oldmask; /* Mask of old.* columns referenced */
|
|
public u32 newmask; /* Mask of new.* columns referenced */
|
|
public u8 eTriggerOp; /* TK_UPDATE, TK_INSERT or TK_DELETE */
|
|
public u8 eOrconf; /* Default ON CONFLICT policy for trigger steps */
|
|
public u8 disableTriggers; /* True to disable triggers */
|
|
public double nQueryLoop; /* Estimated number of iterations of a query */
|
|
|
|
/* Above is constant between recursions. Below is reset before and after
|
|
** each recursion */
|
|
|
|
public int nVar; /* Number of '?' variables seen in the SQL so far */
|
|
public int nzVar; /* Number of available slots in azVar[] */
|
|
public string[] azVar; /* Pointers to names of parameters */
|
|
public Vdbe pReprepare; /* VM being reprepared (sqlite3Reprepare()) */
|
|
public int nAlias; /* Number of aliased result set columns */
|
|
public int nAliasAlloc; /* Number of allocated slots for aAlias[] */
|
|
public int[] aAlias; /* Register used to hold aliased result */
|
|
public u8 explain; /* True if the EXPLAIN flag is found on the query */
|
|
public Token sNameToken; /* Token with unqualified schema object name */
|
|
public Token sLastToken; /* The last token parsed */
|
|
public StringBuilder zTail; /* All SQL text past the last semicolon parsed */
|
|
public Table pNewTable; /* A table being constructed by CREATE TABLE */
|
|
public Trigger pNewTrigger; /* Trigger under construct by a CREATE TRIGGER */
|
|
public string zAuthContext; /* The 6th parameter to db.xAuth callbacks */
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
public Token sArg; /* Complete text of a module argument */
|
|
public u8 declareVtab; /* True if inside sqlite3_declare_vtab() */
|
|
public int nVtabLock; /* Number of virtual tables to lock */
|
|
public Table[] apVtabLock; /* Pointer to virtual tables needing locking */
|
|
#endif
|
|
public int nHeight; /* Expression tree height of current sub-select */
|
|
public Table pZombieTab; /* List of Table objects to delete after code gen */
|
|
public TriggerPrg pTriggerPrg; /* Linked list of coded triggers */
|
|
#if !SQLITE_OMIT_EXPLAIN
|
|
public int iSelectId;
|
|
public int iNextSelectId;
|
|
#endif
|
|
|
|
// We need to create instances of the col cache
|
|
public Parse()
|
|
{
|
|
aTempReg = new int[8]; /* Holding area for temporary registers */
|
|
|
|
aColCache = new yColCache[SQLITE_N_COLCACHE]; /* One for each valid column cache entry */
|
|
for (int i = 0; i < this.aColCache.Length; i++)
|
|
{
|
|
this.aColCache[i] = new yColCache();
|
|
}
|
|
|
|
cookieValue = new int[SQLITE_MAX_ATTACHED + 2]; /* Values of cookies to verify */
|
|
|
|
sLastToken = new Token(); /* The last token parsed */
|
|
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
sArg = new Token();
|
|
#endif
|
|
}
|
|
|
|
public void ResetMembers() // Need to clear all the following variables during each recursion
|
|
{
|
|
nVar = 0;
|
|
nzVar = 0;
|
|
azVar = null;
|
|
nAlias = 0;
|
|
nAliasAlloc = 0;
|
|
aAlias = null;
|
|
explain = 0;
|
|
sNameToken = new Token();
|
|
sLastToken = new Token();
|
|
zTail.Length = 0;
|
|
pNewTable = null;
|
|
pNewTrigger = null;
|
|
zAuthContext = null;
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
sArg = new Token();
|
|
declareVtab = 0;
|
|
nVtabLock = 0;
|
|
apVtabLock = null;
|
|
#endif
|
|
nHeight = 0;
|
|
pZombieTab = null;
|
|
pTriggerPrg = null;
|
|
}
|
|
|
|
private Parse[] SaveBuf = new Parse[10]; //For Recursion Storage
|
|
|
|
public void RestoreMembers() // Need to clear all the following variables during each recursion
|
|
{
|
|
if (SaveBuf[nested] != null)
|
|
{
|
|
nVar = SaveBuf[nested].nVar;
|
|
nzVar = SaveBuf[nested].nzVar;
|
|
azVar = SaveBuf[nested].azVar;
|
|
nAlias = SaveBuf[nested].nAlias;
|
|
nAliasAlloc = SaveBuf[nested].nAliasAlloc;
|
|
aAlias = SaveBuf[nested].aAlias;
|
|
explain = SaveBuf[nested].explain;
|
|
sNameToken = SaveBuf[nested].sNameToken;
|
|
sLastToken = SaveBuf[nested].sLastToken;
|
|
zTail = SaveBuf[nested].zTail;
|
|
pNewTable = SaveBuf[nested].pNewTable;
|
|
pNewTrigger = SaveBuf[nested].pNewTrigger;
|
|
zAuthContext = SaveBuf[nested].zAuthContext;
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
sArg = SaveBuf[nested].sArg;
|
|
declareVtab = SaveBuf[nested].declareVtab;
|
|
nVtabLock = SaveBuf[nested].nVtabLock;
|
|
apVtabLock = SaveBuf[nested].apVtabLock;
|
|
#endif
|
|
nHeight = SaveBuf[nested].nHeight;
|
|
pZombieTab = SaveBuf[nested].pZombieTab;
|
|
pTriggerPrg = SaveBuf[nested].pTriggerPrg;
|
|
SaveBuf[nested] = null;
|
|
}
|
|
}
|
|
|
|
public void SaveMembers() // Need to clear all the following variables during each recursion
|
|
{
|
|
SaveBuf[nested] = new Parse();
|
|
SaveBuf[nested].nVar = nVar;
|
|
SaveBuf[nested].nzVar = nzVar;
|
|
SaveBuf[nested].azVar = azVar;
|
|
SaveBuf[nested].nAlias = nAlias;
|
|
SaveBuf[nested].nAliasAlloc = nAliasAlloc;
|
|
SaveBuf[nested].aAlias = aAlias;
|
|
SaveBuf[nested].explain = explain;
|
|
SaveBuf[nested].sNameToken = sNameToken;
|
|
SaveBuf[nested].sLastToken = sLastToken;
|
|
SaveBuf[nested].zTail = zTail;
|
|
SaveBuf[nested].pNewTable = pNewTable;
|
|
SaveBuf[nested].pNewTrigger = pNewTrigger;
|
|
SaveBuf[nested].zAuthContext = zAuthContext;
|
|
#if !SQLITE_OMIT_VIRTUALTABLE
|
|
SaveBuf[nested].sArg = sArg;
|
|
SaveBuf[nested].declareVtab = declareVtab;
|
|
SaveBuf[nested].nVtabLock = nVtabLock;
|
|
SaveBuf[nested].apVtabLock = apVtabLock;
|
|
#endif
|
|
SaveBuf[nested].nHeight = nHeight;
|
|
SaveBuf[nested].pZombieTab = pZombieTab;
|
|
SaveBuf[nested].pTriggerPrg = pTriggerPrg;
|
|
}
|
|
};
|
|
|
|
#if SQLITE_OMIT_VIRTUALTABLE
|
|
//#define IN_DECLARE_VTAB 0
|
|
static bool IN_DECLARE_VTAB( Parse pParse )
|
|
{
|
|
return false;
|
|
}
|
|
#else
|
|
|
|
//#define IN_DECLARE_VTAB (pParse.declareVtab)
|
|
private static bool IN_DECLARE_VTAB(Parse pParse)
|
|
{
|
|
return pParse.declareVtab != 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
** An instance of the following structure can be declared on a stack and used
|
|
** to save the Parse.zAuthContext value so that it can be restored later.
|
|
*/
|
|
|
|
public class AuthContext
|
|
{
|
|
public string zAuthContext; /* Put saved Parse.zAuthContext here */
|
|
public Parse pParse; /* The Parse structure */
|
|
};
|
|
|
|
/*
|
|
** Bitfield flags for P5 value in OP_Insert and OP_Delete
|
|
*/
|
|
|
|
//#define OPFLAG_NCHANGE 0x01 /* Set to update db->nChange */
|
|
//#define OPFLAG_LASTROWID 0x02 /* Set to update db->lastRowid */
|
|
//#define OPFLAG_ISUPDATE 0x04 /* This OP_Insert is an sql UPDATE */
|
|
//#define OPFLAG_APPEND 0x08 /* This is likely to be an append */
|
|
//#define OPFLAG_USESEEKRESULT 0x10 /* Try to avoid a seek in BtreeInsert() */
|
|
//#define OPFLAG_CLEARCACHE 0x20 /* Clear pseudo-table cache in OP_Column */
|
|
private const byte OPFLAG_NCHANGE = 0x01;
|
|
|
|
private const byte OPFLAG_LASTROWID = 0x02;
|
|
private const byte OPFLAG_ISUPDATE = 0x04;
|
|
private const byte OPFLAG_APPEND = 0x08;
|
|
private const byte OPFLAG_USESEEKRESULT = 0x10;
|
|
private const byte OPFLAG_CLEARCACHE = 0x20;
|
|
|
|
/*
|
|
* Each trigger present in the database schema is stored as an instance of
|
|
* struct Trigger.
|
|
*
|
|
* Pointers to instances of struct Trigger are stored in two ways.
|
|
* 1. In the "trigHash" hash table (part of the sqlite3* that represents the
|
|
* database). This allows Trigger structures to be retrieved by name.
|
|
* 2. All triggers associated with a single table form a linked list, using the
|
|
* pNext member of struct Trigger. A pointer to the first element of the
|
|
* linked list is stored as the "pTrigger" member of the associated
|
|
* struct Table.
|
|
*
|
|
* The "step_list" member points to the first element of a linked list
|
|
* containing the SQL statements specified as the trigger program.
|
|
*/
|
|
|
|
public class Trigger
|
|
{
|
|
public string zName; /* The name of the trigger */
|
|
public string table; /* The table or view to which the trigger applies */
|
|
public u8 op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT */
|
|
public u8 tr_tm; /* One of TRIGGER_BEFORE, TRIGGER_AFTER */
|
|
public Expr pWhen; /* The WHEN clause of the expression (may be NULL) */
|
|
public IdList pColumns; /* If this is an UPDATE OF <column-list> trigger,
|
|
the <column-list> is stored here */
|
|
public Schema pSchema; /* Schema containing the trigger */
|
|
public Schema pTabSchema; /* Schema containing the table */
|
|
public TriggerStep step_list; /* Link list of trigger program steps */
|
|
public Trigger pNext; /* Next trigger associated with the table */
|
|
|
|
public Trigger Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
Trigger cp = (Trigger)MemberwiseClone();
|
|
if (pWhen != null)
|
|
cp.pWhen = pWhen.Copy();
|
|
if (pColumns != null)
|
|
cp.pColumns = pColumns.Copy();
|
|
if (pSchema != null)
|
|
cp.pSchema = pSchema.Copy();
|
|
if (pTabSchema != null)
|
|
cp.pTabSchema = pTabSchema.Copy();
|
|
if (step_list != null)
|
|
cp.step_list = step_list.Copy();
|
|
if (pNext != null)
|
|
cp.pNext = pNext.Copy();
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** A trigger is either a BEFORE or an AFTER trigger. The following constants
|
|
** determine which.
|
|
**
|
|
** If there are multiple triggers, you might of some BEFORE and some AFTER.
|
|
** In that cases, the constants below can be ORed together.
|
|
*/
|
|
private const u8 TRIGGER_BEFORE = 1;//#define TRIGGER_BEFORE 1
|
|
private const u8 TRIGGER_AFTER = 2;//#define TRIGGER_AFTER 2
|
|
|
|
/*
|
|
* An instance of struct TriggerStep is used to store a single SQL statement
|
|
* that is a part of a trigger-program.
|
|
*
|
|
* Instances of struct TriggerStep are stored in a singly linked list (linked
|
|
* using the "pNext" member) referenced by the "step_list" member of the
|
|
* associated struct Trigger instance. The first element of the linked list is
|
|
* the first step of the trigger-program.
|
|
*
|
|
* The "op" member indicates whether this is a "DELETE", "INSERT", "UPDATE" or
|
|
* "SELECT" statement. The meanings of the other members is determined by the
|
|
* value of "op" as follows:
|
|
*
|
|
* (op == TK_INSERT)
|
|
* orconf -> stores the ON CONFLICT algorithm
|
|
* pSelect -> If this is an INSERT INTO ... SELECT ... statement, then
|
|
* this stores a pointer to the SELECT statement. Otherwise NULL.
|
|
* target -> A token holding the quoted name of the table to insert into.
|
|
* pExprList -> If this is an INSERT INTO ... VALUES ... statement, then
|
|
* this stores values to be inserted. Otherwise NULL.
|
|
* pIdList -> If this is an INSERT INTO ... (<column-names>) VALUES ...
|
|
* statement, then this stores the column-names to be
|
|
* inserted into.
|
|
*
|
|
* (op == TK_DELETE)
|
|
* target -> A token holding the quoted name of the table to delete from.
|
|
* pWhere -> The WHERE clause of the DELETE statement if one is specified.
|
|
* Otherwise NULL.
|
|
*
|
|
* (op == TK_UPDATE)
|
|
* target -> A token holding the quoted name of the table to update rows of.
|
|
* pWhere -> The WHERE clause of the UPDATE statement if one is specified.
|
|
* Otherwise NULL.
|
|
* pExprList -> A list of the columns to update and the expressions to update
|
|
* them to. See sqlite3Update() documentation of "pChanges"
|
|
* argument.
|
|
*
|
|
*/
|
|
|
|
public class TriggerStep
|
|
{
|
|
public u8 op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT, TK_SELECT */
|
|
public u8 orconf; /* OE_Rollback etc. */
|
|
public Trigger pTrig; /* The trigger that this step is a part of */
|
|
public Select pSelect; /* SELECT statment or RHS of INSERT INTO .. SELECT ... */
|
|
public Token target; /* Target table for DELETE, UPDATE, INSERT */
|
|
public Expr pWhere; /* The WHERE clause for DELETE or UPDATE steps */
|
|
public ExprList pExprList; /* SET clause for UPDATE. VALUES clause for INSERT */
|
|
public IdList pIdList; /* Column names for INSERT */
|
|
public TriggerStep pNext; /* Next in the link-list */
|
|
public TriggerStep pLast; /* Last element in link-list. Valid for 1st elem only */
|
|
|
|
public TriggerStep()
|
|
{
|
|
target = new Token();
|
|
}
|
|
|
|
public TriggerStep Copy()
|
|
{
|
|
if (this == null)
|
|
return null;
|
|
else
|
|
{
|
|
TriggerStep cp = (TriggerStep)MemberwiseClone();
|
|
return cp;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** The following structure contains information used by the sqliteFix...
|
|
** routines as they walk the parse tree to make database references
|
|
** explicit.
|
|
*/
|
|
|
|
//typedef struct DbFixer DbFixer;
|
|
public class DbFixer
|
|
{
|
|
public Parse pParse; /* The parsing context. Error messages written here */
|
|
public string zDb; /* Make sure all objects are contained in this database */
|
|
public string zType; /* Type of the container - used for error messages */
|
|
public Token pName; /* Name of the container - used for error messages */
|
|
};
|
|
|
|
/*
|
|
** An objected used to accumulate the text of a string where we
|
|
** do not necessarily know how big the string will be in the end.
|
|
*/
|
|
|
|
public class StrAccum
|
|
{
|
|
public sqlite3 db; /* Optional database for lookaside. Can be NULL */
|
|
|
|
//public StringBuilder zBase; /* A base allocation. Not from malloc. */
|
|
public StringBuilder zText; /* The string collected so far */
|
|
|
|
//public int nChar; /* Length of the string so far */
|
|
//public int nAlloc; /* Amount of space allocated in zText */
|
|
public int mxAlloc; /* Maximum allowed string length */
|
|
|
|
// Cannot happen under C#
|
|
//public u8 mallocFailed; /* Becomes true if any memory allocation fails */
|
|
//public u8 useMalloc; /* 0: none, 1: sqlite3DbMalloc, 2: sqlite3_malloc */
|
|
//public u8 tooBig; /* Becomes true if string size exceeds limits */
|
|
public Mem Context;
|
|
|
|
public StrAccum(int n)
|
|
{
|
|
db = null;
|
|
//zBase = new StringBuilder( n );
|
|
zText = new StringBuilder(n);
|
|
//nChar = 0;
|
|
//nAlloc = n;
|
|
mxAlloc = 0;
|
|
//useMalloc = 0;
|
|
//tooBig = 0;
|
|
Context = null;
|
|
}
|
|
|
|
public i64 nChar
|
|
{
|
|
get
|
|
{
|
|
return zText.Length;
|
|
}
|
|
}
|
|
|
|
public bool tooBig
|
|
{
|
|
get
|
|
{
|
|
return mxAlloc > 0 && zText.Length > mxAlloc;
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
** A pointer to this structure is used to communicate information
|
|
** from sqlite3Init and OP_ParseSchema into the sqlite3InitCallback.
|
|
*/
|
|
|
|
public class InitData
|
|
{
|
|
public sqlite3 db; /* The database being initialized */
|
|
public int iDb; /* 0 for main database. 1 for TEMP, 2.. for ATTACHed */
|
|
public string pzErrMsg; /* Error message stored here */
|
|
public int rc; /* Result code stored here */
|
|
}
|
|
|
|
/*
|
|
** Structure containing global configuration data for the SQLite library.
|
|
**
|
|
** This structure also contains some state information.
|
|
*/
|
|
|
|
public class Sqlite3Config
|
|
{
|
|
public bool bMemstat; /* True to enable memory status */
|
|
public bool bCoreMutex; /* True to enable core mutexing */
|
|
public bool bFullMutex; /* True to enable full mutexing */
|
|
public bool bOpenUri; /* True to interpret filenames as URIs */
|
|
public int mxStrlen; /* Maximum string length */
|
|
public int szLookaside; /* Default lookaside buffer size */
|
|
public int nLookaside; /* Default lookaside buffer count */
|
|
public sqlite3_mem_methods m; /* Low-level memory allocation interface */
|
|
public sqlite3_mutex_methods mutex; /* Low-level mutex interface */
|
|
public sqlite3_pcache_methods pcache; /* Low-level page-cache interface */
|
|
public byte[] pHeap; /* Heap storage space */
|
|
public int nHeap; /* Size of pHeap[] */
|
|
public int mnReq, mxReq; /* Min and max heap requests sizes */
|
|
public byte[][] pScratch2; /* Scratch memory */
|
|
public byte[][] pScratch; /* Scratch memory */
|
|
public int szScratch; /* Size of each scratch buffer */
|
|
public int nScratch; /* Number of scratch buffers */
|
|
public MemPage pPage; /* Page cache memory */
|
|
public int szPage; /* Size of each page in pPage[] */
|
|
public int nPage; /* Number of pages in pPage[] */
|
|
public int mxParserStack; /* maximum depth of the parser stack */
|
|
public bool sharedCacheEnabled; /* true if shared-cache mode enabled */
|
|
/* The above might be initialized to non-zero. The following need to always
|
|
** initially be zero, however. */
|
|
public int isInit; /* True after initialization has finished */
|
|
public int inProgress; /* True while initialization in progress */
|
|
public int isMutexInit; /* True after mutexes are initialized */
|
|
public int isMallocInit; /* True after malloc is initialized */
|
|
public int isPCacheInit; /* True after malloc is initialized */
|
|
public sqlite3_mutex pInitMutex; /* Mutex used by sqlite3_initialize() */
|
|
public int nRefInitMutex; /* Number of users of pInitMutex */
|
|
public dxLog xLog; //void (*xLog)(void*,int,const char); /* Function for logging */
|
|
public object pLogArg; /* First argument to xLog() */
|
|
public bool bLocaltimeFault; /* True to fail localtime() calls */
|
|
|
|
public Sqlite3Config(
|
|
int bMemstat
|
|
, int bCoreMutex
|
|
, bool bFullMutex
|
|
, bool bOpenUri
|
|
, int mxStrlen
|
|
, int szLookaside
|
|
, int nLookaside
|
|
, sqlite3_mem_methods m
|
|
, sqlite3_mutex_methods mutex
|
|
, sqlite3_pcache_methods pcache
|
|
, byte[] pHeap
|
|
, int nHeap
|
|
, int mnReq
|
|
, int mxReq
|
|
, byte[][] pScratch
|
|
, int szScratch
|
|
, int nScratch
|
|
, MemPage pPage
|
|
, int szPage
|
|
, int nPage
|
|
, int mxParserStack
|
|
, bool sharedCacheEnabled
|
|
, int isInit
|
|
, int inProgress
|
|
, int isMutexInit
|
|
, int isMallocInit
|
|
, int isPCacheInit
|
|
, sqlite3_mutex pInitMutex
|
|
, int nRefInitMutex
|
|
, dxLog xLog
|
|
, object pLogArg
|
|
, bool bLocaltimeFault
|
|
)
|
|
{
|
|
this.bMemstat = bMemstat != 0;
|
|
this.bCoreMutex = bCoreMutex != 0;
|
|
this.bOpenUri = bOpenUri;
|
|
this.bFullMutex = bFullMutex;
|
|
this.mxStrlen = mxStrlen;
|
|
this.szLookaside = szLookaside;
|
|
this.nLookaside = nLookaside;
|
|
this.m = m;
|
|
this.mutex = mutex;
|
|
this.pcache = pcache;
|
|
this.pHeap = pHeap;
|
|
this.nHeap = nHeap;
|
|
this.mnReq = mnReq;
|
|
this.mxReq = mxReq;
|
|
this.pScratch = pScratch;
|
|
this.szScratch = szScratch;
|
|
this.nScratch = nScratch;
|
|
this.pPage = pPage;
|
|
this.szPage = szPage;
|
|
this.nPage = nPage;
|
|
this.mxParserStack = mxParserStack;
|
|
this.sharedCacheEnabled = sharedCacheEnabled;
|
|
this.isInit = isInit;
|
|
this.inProgress = inProgress;
|
|
this.isMutexInit = isMutexInit;
|
|
this.isMallocInit = isMallocInit;
|
|
this.isPCacheInit = isPCacheInit;
|
|
this.pInitMutex = pInitMutex;
|
|
this.nRefInitMutex = nRefInitMutex;
|
|
this.xLog = xLog;
|
|
this.pLogArg = pLogArg;
|
|
this.bLocaltimeFault = bLocaltimeFault;
|
|
}
|
|
};
|
|
|
|
/*
|
|
** Context pointer passed down through the tree-walk.
|
|
*/
|
|
|
|
public class Walker
|
|
{
|
|
public dxExprCallback xExprCallback; //)(Walker*, Expr); /* Callback for expressions */
|
|
public dxSelectCallback xSelectCallback; //)(Walker*,Select); /* Callback for SELECTs */
|
|
public Parse pParse; /* Parser context. */
|
|
|
|
public struct uw
|
|
{ /* Extra data for callback */
|
|
public NameContext pNC; /* Naming context */
|
|
public int i; /* Integer value */
|
|
}
|
|
|
|
public uw u;
|
|
};
|
|
|
|
/* Forward declarations */
|
|
//int sqlite3WalkExpr(Walker*, Expr);
|
|
//int sqlite3WalkExprList(Walker*, ExprList);
|
|
//int sqlite3WalkSelect(Walker*, Select);
|
|
//int sqlite3WalkSelectExpr(Walker*, Select);
|
|
//int sqlite3WalkSelectFrom(Walker*, Select);
|
|
|
|
/*
|
|
** Return code from the parse-tree walking primitives and their
|
|
** callbacks.
|
|
*/
|
|
|
|
//#define WRC_Continue 0 /* Continue down into children */
|
|
//#define WRC_Prune 1 /* Omit children but continue walking siblings */
|
|
//#define WRC_Abort 2 /* Abandon the tree walk */
|
|
private const int WRC_Continue = 0;
|
|
|
|
private const int WRC_Prune = 1;
|
|
private const int WRC_Abort = 2;
|
|
|
|
/*
|
|
** Assuming zIn points to the first byte of a UTF-8 character,
|
|
** advance zIn to point to the first byte of the next UTF-8 character.
|
|
*/
|
|
|
|
//#define SQLITE_SKIP_UTF8(zIn) { \
|
|
// if( (*(zIn++))>=0xc0 ){ \
|
|
// while( (*zIn & 0xc0)==0x80 ){ zIn++; } \
|
|
// } \
|
|
//}
|
|
private static void SQLITE_SKIP_UTF8(string zIn, ref int iz)
|
|
{
|
|
iz++;
|
|
if (iz < zIn.Length && zIn[iz - 1] >= 0xC0)
|
|
{
|
|
while (iz < zIn.Length && (zIn[iz] & 0xC0) == 0x80)
|
|
{
|
|
iz++;
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void SQLITE_SKIP_UTF8(
|
|
byte[] zIn, ref int iz)
|
|
{
|
|
iz++;
|
|
if (iz < zIn.Length && zIn[iz - 1] >= 0xC0)
|
|
{
|
|
while (iz < zIn.Length && (zIn[iz] & 0xC0) == 0x80)
|
|
{
|
|
iz++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
** The SQLITE_*_BKPT macros are substitutes for the error codes with
|
|
** the same name but without the _BKPT suffix. These macros invoke
|
|
** routines that report the line-number on which the error originated
|
|
** using sqlite3_log(). The routines also provide a convenient place
|
|
** to set a debugger breakpoint.
|
|
*/
|
|
//int sqlite3CorruptError(int);
|
|
//int sqlite3MisuseError(int);
|
|
//int sqlite3CantopenError(int);
|
|
#if DEBUG
|
|
|
|
//#define SQLITE_CORRUPT_BKPT sqlite3CorruptError(__LINE__)
|
|
private static int SQLITE_CORRUPT_BKPT()
|
|
{
|
|
return sqlite3CorruptError(0);
|
|
}
|
|
|
|
//#define SQLITE_MISUSE_BKPT sqlite3MisuseError(__LINE__)
|
|
private static int SQLITE_MISUSE_BKPT()
|
|
{
|
|
return sqlite3MisuseError(0);
|
|
}
|
|
|
|
//#define SQLITE_CANTOPEN_BKPT sqlite3CantopenError(__LINE__)
|
|
private static int SQLITE_CANTOPEN_BKPT()
|
|
{
|
|
return sqlite3CantopenError(0);
|
|
}
|
|
|
|
#else
|
|
static int SQLITE_CORRUPT_BKPT() {return SQLITE_CORRUPT;}
|
|
static int SQLITE_MISUSE_BKPT() {return SQLITE_MISUSE;}
|
|
static int SQLITE_CANTOPEN_BKPT() {return SQLITE_CANTOPEN;}
|
|
#endif
|
|
|
|
/*
|
|
** FTS4 is really an extension for FTS3. It is enabled using the
|
|
** SQLITE_ENABLE_FTS3 macro. But to avoid confusion we also all
|
|
** the SQLITE_ENABLE_FTS4 macro to serve as an alisse for SQLITE_ENABLE_FTS3.
|
|
*/
|
|
//#if (SQLITE_ENABLE_FTS4) && !defined(SQLITE_ENABLE_FTS3)
|
|
//# define SQLITE_ENABLE_FTS3
|
|
//#endif
|
|
|
|
/*
|
|
** The ctype.h header is needed for non-ASCII systems. It is also
|
|
** needed by FTS3 when FTS3 is included in the amalgamation.
|
|
*/
|
|
//#if !defined(SQLITE_ASCII) || \
|
|
// (defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_AMALGAMATION))
|
|
//# include <ctype.h>
|
|
//#endif
|
|
|
|
/*
|
|
** The following macros mimic the standard library functions toupper(),
|
|
** isspace(), isalnum(), isdigit() and isxdigit(), respectively. The
|
|
** sqlite versions only work for ASCII characters, regardless of locale.
|
|
*/
|
|
#if SQLITE_ASCII
|
|
//# define sqlite3Toupper(x) ((x)&~(sqlite3CtypeMap[(unsigned char)(x)]&0x20))
|
|
|
|
//# define sqlite3Isspace(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x01)
|
|
private static bool sqlite3Isspace(byte x)
|
|
{
|
|
return (sqlite3CtypeMap[(byte)(x)] & 0x01) != 0;
|
|
}
|
|
|
|
private static bool sqlite3Isspace(char x)
|
|
{
|
|
return x < 256 && (sqlite3CtypeMap[(byte)(x)] & 0x01) != 0;
|
|
}
|
|
|
|
//# define sqlite3Isalnum(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x06)
|
|
private static bool sqlite3Isalnum(byte x)
|
|
{
|
|
return (sqlite3CtypeMap[(byte)(x)] & 0x06) != 0;
|
|
}
|
|
|
|
private static bool sqlite3Isalnum(char x)
|
|
{
|
|
return x < 256 && (sqlite3CtypeMap[(byte)(x)] & 0x06) != 0;
|
|
}
|
|
|
|
//# define sqlite3Isalpha(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x02)
|
|
|
|
//# define sqlite3Isdigit(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x04)
|
|
private static bool sqlite3Isdigit(byte x)
|
|
{
|
|
return (sqlite3CtypeMap[((byte)x)] & 0x04) != 0;
|
|
}
|
|
|
|
private static bool sqlite3Isdigit(char x)
|
|
{
|
|
return x < 256 && (sqlite3CtypeMap[((byte)x)] & 0x04) != 0;
|
|
}
|
|
|
|
//# define sqlite3Isxdigit(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x08)
|
|
private static bool sqlite3Isxdigit(byte x)
|
|
{
|
|
return (sqlite3CtypeMap[((byte)x)] & 0x08) != 0;
|
|
}
|
|
|
|
private static bool sqlite3Isxdigit(char x)
|
|
{
|
|
return x < 256 && (sqlite3CtypeMap[((byte)x)] & 0x08) != 0;
|
|
}
|
|
|
|
//# define sqlite3Tolower(x) (sqlite3UpperToLower[(unsigned char)(x)])
|
|
#else
|
|
//# define sqlite3Toupper(x) toupper((unsigned char)(x))
|
|
//# define sqlite3Isspace(x) isspace((unsigned char)(x))
|
|
//# define sqlite3Isalnum(x) isalnum((unsigned char)(x))
|
|
//# define sqlite3Isalpha(x) isalpha((unsigned char)(x))
|
|
//# define sqlite3Isdigit(x) isdigit((unsigned char)(x))
|
|
//# define sqlite3Isxdigit(x) isxdigit((unsigned char)(x))
|
|
//# define sqlite3Tolower(x) tolower((unsigned char)(x))
|
|
#endif
|
|
|
|
/*
|
|
** Internal function prototypes
|
|
*/
|
|
//int sqlite3StrICmp(string , string );
|
|
//int sqlite3Strlen30(const char);
|
|
//#define sqlite3StrNICmp sqlite3_strnicmp
|
|
|
|
//int sqlite3MallocInit(void);
|
|
//void sqlite3MallocEnd(void);
|
|
//void *sqlite3Malloc(int);
|
|
//void *sqlite3MallocZero(int);
|
|
//void *sqlite3DbMallocZero(sqlite3*, int);
|
|
//void *sqlite3DbMallocRaw(sqlite3*, int);
|
|
//char *sqlite3DbStrDup(sqlite3*,const char);
|
|
//char *sqlite3DbStrNDup(sqlite3*,const char*, int);
|
|
//void *sqlite3Realloc(void*, int);
|
|
//void *sqlite3DbReallocOrFree(sqlite3 *, object *, int);
|
|
//void *sqlite3DbRealloc(sqlite3 *, object *, int);
|
|
//void sqlite3DbFree(sqlite3*, void);
|
|
//int sqlite3MallocSize(void);
|
|
//int sqlite3DbMallocSize(sqlite3*, void);
|
|
//void *sqlite3ScratchMalloc(int);
|
|
//void //sqlite3ScratchFree(void);
|
|
//void *sqlite3PageMalloc(int);
|
|
//void sqlite3PageFree(void);
|
|
//void sqlite3MemSetDefault(void);
|
|
//void sqlite3BenignMallocHooks(void ()(void), object ()(void));
|
|
//int sqlite3HeapNearlyFull(void);
|
|
|
|
/*
|
|
** On systems with ample stack space and that support alloca(), make
|
|
** use of alloca() to obtain space for large automatic objects. By default,
|
|
** obtain space from malloc().
|
|
**
|
|
** The alloca() routine never returns NULL. This will cause code paths
|
|
** that deal with sqlite3StackAlloc() failures to be unreachable.
|
|
*/
|
|
#if SQLITE_USE_ALLOCA
|
|
//# define sqlite3StackAllocRaw(D,N) alloca(N)
|
|
//# define sqlite3StackAllocZero(D,N) memset(alloca(N), 0, N)
|
|
//# define sqlite3StackFree(D,P)
|
|
#else
|
|
#if FALSE
|
|
//# define sqlite3StackAllocRaw(D,N) sqlite3DbMallocRaw(D,N)
|
|
static void sqlite3StackAllocRaw( sqlite3 D, int N ) { sqlite3DbMallocRaw( D, N ); }
|
|
//# define sqlite3StackAllocZero(D,N) sqlite3DbMallocZero(D,N)
|
|
static void sqlite3StackAllocZero( sqlite3 D, int N ) { sqlite3DbMallocZero( D, N ); }
|
|
//# define sqlite3StackFree(D,P) sqlite3DbFree(D,P)
|
|
static void sqlite3StackFree( sqlite3 D, object P ) {sqlite3DbFree( D, P ); }
|
|
#endif
|
|
#endif
|
|
|
|
#if SQLITE_ENABLE_MEMSYS3
|
|
const sqlite3_mem_methods *sqlite3MemGetMemsys3(void);
|
|
#endif
|
|
#if SQLITE_ENABLE_MEMSYS5
|
|
const sqlite3_mem_methods *sqlite3MemGetMemsys5(void);
|
|
#endif
|
|
|
|
#if !SQLITE_MUTEX_OMIT
|
|
// sqlite3_mutex_methods const *sqlite3DefaultMutex(void);
|
|
// sqlite3_mutex_methods const *sqlite3NoopMutex(void);
|
|
// sqlite3_mutex *sqlite3MutexAlloc(int);
|
|
// int sqlite3MutexInit(void);
|
|
// int sqlite3MutexEnd(void);
|
|
#endif
|
|
|
|
//int sqlite3StatusValue(int);
|
|
//void sqlite3StatusAdd(int, int);
|
|
//void sqlite3StatusSet(int, int);
|
|
|
|
//#if !SQLITE_OMIT_FLOATING_POINT
|
|
// int sqlite3IsNaN(double);
|
|
//#else
|
|
//# define sqlite3IsNaN(X) 0
|
|
//#endif
|
|
|
|
//void sqlite3VXPrintf(StrAccum*, int, const char*, va_list);
|
|
#if!SQLITE_OMIT_TRACE
|
|
//void sqlite3XPrintf(StrAccum*, const char*, ...);
|
|
#endif
|
|
//char *sqlite3MPrintf(sqlite3*,const char*, ...);
|
|
//char *sqlite3VMPrintf(sqlite3*,const char*, va_list);
|
|
//char *sqlite3MAppendf(sqlite3*,char*,const char*,...);
|
|
#if SQLITE_TEST || SQLITE_DEBUG
|
|
// void sqlite3DebugPrintf(const char*, ...);
|
|
#endif
|
|
#if SQLITE_TEST
|
|
// void *sqlite3TestTextToPtr(const char);
|
|
#endif
|
|
//void sqlite3SetString(char **, sqlite3*, const char*, ...);
|
|
//void sqlite3ErrorMsg(Parse*, const char*, ...);
|
|
//int sqlite3Dequote(char);
|
|
//int sqlite3KeywordCode(const unsigned char*, int);
|
|
//int sqlite3RunParser(Parse*, const char*, char *);
|
|
//void sqlite3FinishCoding(Parse);
|
|
//int sqlite3GetTempReg(Parse);
|
|
//void sqlite3ReleaseTempReg(Parse*,int);
|
|
//int sqlite3GetTempRange(Parse*,int);
|
|
//void sqlite3ReleaseTempRange(Parse*,int,int);
|
|
//Expr *sqlite3ExprAlloc(sqlite3*,int,const Token*,int);
|
|
//Expr *sqlite3Expr(sqlite3*,int,const char);
|
|
//void sqlite3ExprAttachSubtrees(sqlite3*,Expr*,Expr*,Expr);
|
|
//Expr *sqlite3PExpr(Parse*, int, Expr*, Expr*, const Token);
|
|
//Expr *sqlite3ExprAnd(sqlite3*,Expr*, Expr);
|
|
//Expr *sqlite3ExprFunction(Parse*,ExprList*, Token);
|
|
//void sqlite3ExprAssignVarNumber(Parse*, Expr);
|
|
//void sqlite3ExprDelete(sqlite3*, Expr);
|
|
//ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr);
|
|
//void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int);
|
|
//void sqlite3ExprListSetSpan(Parse*,ExprList*,ExprSpan);
|
|
//void sqlite3ExprListDelete(sqlite3*, ExprList);
|
|
//int sqlite3Init(sqlite3*, char*);
|
|
//int sqlite3InitCallback(void*, int, char**, char*);
|
|
//void sqlite3Pragma(Parse*,Token*,Token*,Token*,int);
|
|
//void sqlite3ResetInternalSchema(sqlite3*, int);
|
|
//void sqlite3BeginParse(Parse*,int);
|
|
//void sqlite3CommitInternalChanges(sqlite3);
|
|
//Table *sqlite3ResultSetOfSelect(Parse*,Select);
|
|
//void sqlite3OpenMasterTable(Parse *, int);
|
|
//void sqlite3StartTable(Parse*,Token*,Token*,int,int,int,int);
|
|
//void sqlite3AddColumn(Parse*,Token);
|
|
//void sqlite3AddNotNull(Parse*, int);
|
|
//void sqlite3AddPrimaryKey(Parse*, ExprList*, int, int, int);
|
|
//void sqlite3AddCheckConstraint(Parse*, Expr);
|
|
//void sqlite3AddColumnType(Parse*,Token);
|
|
//void sqlite3AddDefaultValue(Parse*,ExprSpan);
|
|
//void sqlite3AddCollateType(Parse*, Token);
|
|
//void sqlite3EndTable(Parse*,Token*,Token*,Select);
|
|
//int sqlite3ParseUri(const char*,const char*,unsigned int*,
|
|
// sqlite3_vfs**,char**,char *);
|
|
|
|
//Bitvec *sqlite3BitvecCreate(u32);
|
|
//int sqlite3BitvecTest(Bitvec*, u32);
|
|
//int sqlite3BitvecSet(Bitvec*, u32);
|
|
//void sqlite3BitvecClear(Bitvec*, u32, void);
|
|
//void sqlite3BitvecDestroy(Bitvec);
|
|
//u32 sqlite3BitvecSize(Bitvec);
|
|
//int sqlite3BitvecBuiltinTest(int,int);
|
|
|
|
//RowSet *sqlite3RowSetInit(sqlite3*, void*, unsigned int);
|
|
//void sqlite3RowSetClear(RowSet);
|
|
//void sqlite3RowSetInsert(RowSet*, i64);
|
|
//int sqlite3RowSetTest(RowSet*, u8 iBatch, i64);
|
|
//int sqlite3RowSetNext(RowSet*, i64);
|
|
|
|
//void sqlite3CreateView(Parse*,Token*,Token*,Token*,Select*,int,int);
|
|
|
|
#if !SQLITE_OMIT_VIEW || !SQLITE_OMIT_VIRTUALTABLE
|
|
//int sqlite3ViewGetColumnNames(Parse*,Table);
|
|
#else
|
|
//# define sqlite3ViewGetColumnNames(A,B) 0
|
|
static int sqlite3ViewGetColumnNames( Parse A, Table B )
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
//void sqlite3DropTable(Parse*, SrcList*, int, int);
|
|
//void sqlite3DeleteTable(sqlite3*, Table);
|
|
//#if !SQLITE_OMIT_AUTOINCREMENT
|
|
// void sqlite3AutoincrementBegin(Parse *pParse);
|
|
// void sqlite3AutoincrementEnd(Parse *pParse);
|
|
//#else
|
|
//# define sqlite3AutoincrementBegin(X)
|
|
//# define sqlite3AutoincrementEnd(X)
|
|
//#endif
|
|
//void sqlite3Insert(Parse*, SrcList*, ExprList*, Select*, IdList*, int);
|
|
//void *sqlite3ArrayAllocate(sqlite3*,void*,int,int,int*,int*,int);
|
|
//IdList *sqlite3IdListAppend(sqlite3*, IdList*, Token);
|
|
//int sqlite3IdListIndex(IdList*,const char);
|
|
//SrcList *sqlite3SrcListEnlarge(sqlite3*, SrcList*, int, int);
|
|
//SrcList *sqlite3SrcListAppend(sqlite3*, SrcList*, Token*, Token);
|
|
//SrcList *sqlite3SrcListAppendFromTerm(Parse*, SrcList*, Token*, Token*,
|
|
// Token*, Select*, Expr*, IdList);
|
|
//void sqlite3SrcListIndexedBy(Parse *, SrcList *, Token );
|
|
//int sqlite3IndexedByLookup(Parse *, struct SrcList_item );
|
|
//void sqlite3SrcListShiftJoinType(SrcList);
|
|
//void sqlite3SrcListAssignCursors(Parse*, SrcList);
|
|
//void sqlite3IdListDelete(sqlite3*, IdList);
|
|
//void sqlite3SrcListDelete(sqlite3*, SrcList);
|
|
//Index *sqlite3CreateIndex(Parse*,Token*,Token*,SrcList*,ExprList*,int,Token*,
|
|
// Token*, int, int);
|
|
//void sqlite3DropIndex(Parse*, SrcList*, int);
|
|
//int sqlite3Select(Parse*, Select*, SelectDest);
|
|
//Select *sqlite3SelectNew(Parse*,ExprList*,SrcList*,Expr*,ExprList*,
|
|
// Expr*,ExprList*,int,Expr*,Expr);
|
|
//void sqlite3SelectDelete(sqlite3*, Select);
|
|
//Table *sqlite3SrcListLookup(Parse*, SrcList);
|
|
//int sqlite3IsReadOnly(Parse*, Table*, int);
|
|
//void sqlite3OpenTable(Parse*, int iCur, int iDb, Table*, int);
|
|
#if (SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !(SQLITE_OMIT_SUBQUERY)
|
|
//Expr *sqlite3LimitWhere(Parse *, SrcList *, Expr *, ExprList *, Expr *, Expr *, char );
|
|
#endif
|
|
//void sqlite3DeleteFrom(Parse*, SrcList*, Expr);
|
|
//void sqlite3Update(Parse*, SrcList*, ExprList*, Expr*, int);
|
|
//WhereInfo *sqlite3WhereBegin(Parse*, SrcList*, Expr*, ExprList**, u16);
|
|
//void sqlite3WhereEnd(WhereInfo);
|
|
//int sqlite3ExprCodeGetColumn(Parse*, Table*, int, int, int);
|
|
//void sqlite3ExprCodeGetColumnOfTable(Vdbe*, Table*, int, int, int);
|
|
//void sqlite3ExprCodeMove(Parse*, int, int, int);
|
|
//void sqlite3ExprCodeCopy(Parse*, int, int, int);
|
|
//void sqlite3ExprCacheStore(Parse*, int, int, int);
|
|
//void sqlite3ExprCachePush(Parse);
|
|
//void sqlite3ExprCachePop(Parse*, int);
|
|
//void sqlite3ExprCacheRemove(Parse*, int, int);
|
|
//void sqlite3ExprCacheClear(Parse);
|
|
//void sqlite3ExprCacheAffinityChange(Parse*, int, int);
|
|
//int sqlite3ExprCode(Parse*, Expr*, int);
|
|
//int sqlite3ExprCodeTemp(Parse*, Expr*, int);
|
|
//int sqlite3ExprCodeTarget(Parse*, Expr*, int);
|
|
//int sqlite3ExprCodeAndCache(Parse*, Expr*, int);
|
|
//void sqlite3ExprCodeConstants(Parse*, Expr);
|
|
//int sqlite3ExprCodeExprList(Parse*, ExprList*, int, int);
|
|
//void sqlite3ExprIfTrue(Parse*, Expr*, int, int);
|
|
//void sqlite3ExprIfFalse(Parse*, Expr*, int, int);
|
|
//Table *sqlite3FindTable(sqlite3*,const char*, const char);
|
|
//Table *sqlite3LocateTable(Parse*,int isView,const char*, const char);
|
|
//Index *sqlite3FindIndex(sqlite3*,const char*, const char);
|
|
//void sqlite3UnlinkAndDeleteTable(sqlite3*,int,const char);
|
|
//void sqlite3UnlinkAndDeleteIndex(sqlite3*,int,const char);
|
|
//void sqlite3Vacuum(Parse);
|
|
//int sqlite3RunVacuum(char**, sqlite3);
|
|
//char *sqlite3NameFromToken(sqlite3*, Token);
|
|
//int sqlite3ExprCompare(Expr*, Expr);
|
|
//int sqlite3ExprListCompare(ExprList*, ExprList);
|
|
//void sqlite3ExprAnalyzeAggregates(NameContext*, Expr);
|
|
//void sqlite3ExprAnalyzeAggList(NameContext*,ExprList);
|
|
//Vdbe *sqlite3GetVdbe(Parse);
|
|
//void sqlite3PrngSaveState(void);
|
|
//void sqlite3PrngRestoreState(void);
|
|
//void sqlite3PrngResetState(void);
|
|
//void sqlite3RollbackAll(sqlite3);
|
|
//void sqlite3CodeVerifySchema(Parse*, int);
|
|
//void sqlite3CodeVerifyNamedSchema(Parse*, string zDb);
|
|
//void sqlite3BeginTransaction(Parse*, int);
|
|
//void sqlite3CommitTransaction(Parse);
|
|
//void sqlite3RollbackTransaction(Parse);
|
|
//void sqlite3Savepoint(Parse*, int, Token);
|
|
//void sqlite3CloseSavepoints(sqlite3 );
|
|
//int sqlite3ExprIsConstant(Expr);
|
|
//int sqlite3ExprIsConstantNotJoin(Expr);
|
|
//int sqlite3ExprIsConstantOrFunction(Expr);
|
|
//int sqlite3ExprIsInteger(Expr*, int);
|
|
//int sqlite3ExprCanBeNull(const Expr);
|
|
//void sqlite3ExprCodeIsNullJump(Vdbe*, const Expr*, int, int);
|
|
//int sqlite3ExprNeedsNoAffinityChange(const Expr*, char);
|
|
//int sqlite3IsRowid(const char);
|
|
//void sqlite3GenerateRowDelete(Parse*, Table*, int, int, int, Trigger *, int);
|
|
//void sqlite3GenerateRowIndexDelete(Parse*, Table*, int, int);
|
|
//int sqlite3GenerateIndexKey(Parse*, Index*, int, int, int);
|
|
//void sqlite3GenerateConstraintChecks(Parse*,Table*,int,int,
|
|
// int*,int,int,int,int,int);
|
|
//void sqlite3CompleteInsertion(Parse*, Table*, int, int, int*, int, int, int);
|
|
//int sqlite3OpenTableAndIndices(Parse*, Table*, int, int);
|
|
//void sqlite3BeginWriteOperation(Parse*, int, int);
|
|
//void sqlite3MultiWrite(Parse);
|
|
//void sqlite3MayAbort(Parse );
|
|
//void sqlite3HaltConstraint(Parse*, int, char*, int);
|
|
//Expr *sqlite3ExprDup(sqlite3*,Expr*,int);
|
|
//ExprList *sqlite3ExprListDup(sqlite3*,ExprList*,int);
|
|
//SrcList *sqlite3SrcListDup(sqlite3*,SrcList*,int);
|
|
//IdList *sqlite3IdListDup(sqlite3*,IdList);
|
|
//Select *sqlite3SelectDup(sqlite3*,Select*,int);
|
|
//void sqlite3FuncDefInsert(FuncDefHash*, FuncDef);
|
|
//FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,int,u8,int);
|
|
//void sqlite3RegisterBuiltinFunctions(sqlite3);
|
|
//void sqlite3RegisterDateTimeFunctions(void);
|
|
//void sqlite3RegisterGlobalFunctions(void);
|
|
//int sqlite3SafetyCheckOk(sqlite3);
|
|
//int sqlite3SafetyCheckSickOrOk(sqlite3);
|
|
//void sqlite3ChangeCookie(Parse*, int);
|
|
#if !(SQLITE_OMIT_VIEW) && !(SQLITE_OMIT_TRIGGER)
|
|
//void sqlite3MaterializeView(Parse*, Table*, Expr*, int);
|
|
#endif
|
|
|
|
#if !SQLITE_OMIT_TRIGGER
|
|
|
|
//void sqlite3BeginTrigger(Parse*, Token*,Token*,int,int,IdList*,SrcList*,
|
|
// Expr*,int, int);
|
|
//void sqlite3FinishTrigger(Parse*, TriggerStep*, Token);
|
|
//void sqlite3DropTrigger(Parse*, SrcList*, int);
|
|
//Trigger *sqlite3TriggersExist(Parse *, Table*, int, ExprList*, int *pMask);
|
|
//Trigger *sqlite3TriggerList(Parse *, Table );
|
|
// void sqlite3CodeRowTrigger(Parse*, Trigger *, int, ExprList*, int, Table *,
|
|
// int, int, int);
|
|
//void sqliteViewTriggers(Parse*, Table*, Expr*, int, ExprList);
|
|
//void sqlite3DeleteTriggerStep(sqlite3*, TriggerStep);
|
|
//TriggerStep *sqlite3TriggerSelectStep(sqlite3*,Select);
|
|
//TriggerStep *sqlite3TriggerInsertStep(sqlite3*,Token*, IdList*,
|
|
// ExprList*,Select*,u8);
|
|
//TriggerStep *sqlite3TriggerUpdateStep(sqlite3*,Token*,ExprList*, Expr*, u8);
|
|
//TriggerStep *sqlite3TriggerDeleteStep(sqlite3*,Token*, Expr);
|
|
//void sqlite3DeleteTrigger(sqlite3*, Trigger);
|
|
//void sqlite3UnlinkAndDeleteTrigger(sqlite3*,int,const char);
|
|
// u32 sqlite3TriggerColmask(Parse*,Trigger*,ExprList*,int,int,Table*,int);
|
|
//# define sqlite3ParseToplevel(p) ((p)->pToplevel ? (p)->pToplevel : (p))
|
|
private static Parse sqlite3ParseToplevel(Parse p)
|
|
{
|
|
return p.pToplevel != null ? p.pToplevel : p;
|
|
}
|
|
|
|
#else
|
|
static void sqlite3BeginTrigger( Parse A, Token B, Token C, int D, int E, IdList F, SrcList G, Expr H, int I, int J )
|
|
{
|
|
}
|
|
static void sqlite3FinishTrigger( Parse P, TriggerStep TS, Token T )
|
|
{
|
|
}
|
|
static TriggerStep sqlite3TriggerSelectStep( sqlite3 A, Select B )
|
|
{
|
|
return null;
|
|
}
|
|
static TriggerStep sqlite3TriggerInsertStep( sqlite3 A, Token B, IdList C, ExprList D, Select E, u8 F )
|
|
{
|
|
return null;
|
|
}
|
|
static TriggerStep sqlite3TriggerInsertStep( sqlite3 A, Token B, IdList C, int D, Select E, u8 F )
|
|
{
|
|
return null;
|
|
}
|
|
static TriggerStep sqlite3TriggerInsertStep( sqlite3 A, Token B, IdList C, ExprList D, int E, u8 F )
|
|
{
|
|
return null;
|
|
}
|
|
static TriggerStep sqlite3TriggerUpdateStep( sqlite3 A, Token B, ExprList C, Expr D, u8 E )
|
|
{
|
|
return null;
|
|
}
|
|
static TriggerStep sqlite3TriggerDeleteStep( sqlite3 A, Token B, Expr C )
|
|
{
|
|
return null;
|
|
}
|
|
static u32 sqlite3TriggerColmask( Parse A, Trigger B, ExprList C, int D, int E, Table F, int G )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
//# define sqlite3TriggersExist(B,C,D,E,F) 0
|
|
static Trigger sqlite3TriggersExist( Parse B, Table C, int D, ExprList E, ref int F )
|
|
{
|
|
return null;
|
|
}
|
|
|
|
//# define sqlite3DeleteTrigger(A,B)
|
|
static void sqlite3DeleteTrigger( sqlite3 A, ref Trigger B )
|
|
{
|
|
}
|
|
static void sqlite3DeleteTriggerStep( sqlite3 A, ref TriggerStep B )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3DropTriggerPtr(A,B)
|
|
static void sqlite3DropTriggerPtr( Parse A, Trigger B )
|
|
{
|
|
}
|
|
static void sqlite3DropTrigger( Parse A, SrcList B, int C )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3UnlinkAndDeleteTrigger(A,B,C)
|
|
static void sqlite3UnlinkAndDeleteTrigger( sqlite3 A, int B, string C )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3CodeRowTrigger(A,B,C,D,E,F,G,H,I)
|
|
static void sqlite3CodeRowTrigger( Parse A, Trigger B, int C, ExprList D, int E, Table F, int G, int H, int I )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3CodeRowTriggerDirect(A,B,C,D,E,F)
|
|
static Trigger sqlite3TriggerList( Parse pParse, Table pTab )
|
|
{
|
|
return null;
|
|
} //# define sqlite3TriggerList(X, Y) 0
|
|
|
|
//# define sqlite3ParseToplevel(p) p
|
|
static Parse sqlite3ParseToplevel( Parse p )
|
|
{
|
|
return p;
|
|
}
|
|
|
|
//# define sqlite3TriggerOldmask(A,B,C,D,E,F) 0
|
|
static u32 sqlite3TriggerOldmask( Parse A, Trigger B, int C, ExprList D, Table E, int F )
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
//int sqlite3JoinType(Parse*, Token*, Token*, Token);
|
|
//void sqlite3CreateForeignKey(Parse*, ExprList*, Token*, ExprList*, int);
|
|
//void sqlite3DeferForeignKey(Parse*, int);
|
|
#if !SQLITE_OMIT_AUTHORIZATION
|
|
void sqlite3AuthRead(Parse*,Expr*,Schema*,SrcList);
|
|
int sqlite3AuthCheck(Parse*,int, const char*, const char*, const char);
|
|
void sqlite3AuthContextPush(Parse*, AuthContext*, const char);
|
|
void sqlite3AuthContextPop(AuthContext);
|
|
int sqlite3AuthReadCol(Parse*, string , string , int);
|
|
#else
|
|
|
|
//# define sqlite3AuthRead(a,b,c,d)
|
|
private static void sqlite3AuthRead(Parse a, Expr b, Schema c, SrcList d)
|
|
{
|
|
}
|
|
|
|
//# define sqlite3AuthCheck(a,b,c,d,e) SQLITE_OK
|
|
private static int sqlite3AuthCheck(Parse a, int b, string c, byte[] d, byte[] e)
|
|
{
|
|
return SQLITE_OK;
|
|
}
|
|
|
|
//# define sqlite3AuthContextPush(a,b,c)
|
|
private static void sqlite3AuthContextPush(Parse a, AuthContext b, string c)
|
|
{
|
|
}
|
|
|
|
//# define sqlite3AuthContextPop(a) ((void)(a))
|
|
private static Parse sqlite3AuthContextPop(Parse a)
|
|
{
|
|
return a;
|
|
}
|
|
|
|
#endif
|
|
//void sqlite3Attach(Parse*, Expr*, Expr*, Expr);
|
|
//void sqlite3Detach(Parse*, Expr);
|
|
//int sqlite3FixInit(DbFixer*, Parse*, int, const char*, const Token);
|
|
//int sqlite3FixSrcList(DbFixer*, SrcList);
|
|
//int sqlite3FixSelect(DbFixer*, Select);
|
|
//int sqlite3FixExpr(DbFixer*, Expr);
|
|
//int sqlite3FixExprList(DbFixer*, ExprList);
|
|
//int sqlite3FixTriggerStep(DbFixer*, TriggerStep);
|
|
//sqlite3AtoF(string z, double*, int, u8)
|
|
//int sqlite3GetInt32(string , int);
|
|
//int sqlite3Atoi(string );
|
|
//int sqlite3Utf16ByteLen(const void pData, int nChar);
|
|
//int sqlite3Utf8CharLen(const char pData, int nByte);
|
|
//u32 sqlite3Utf8Read(const u8*, const u8*);
|
|
|
|
/*
|
|
** Routines to read and write variable-length integers. These used to
|
|
** be defined locally, but now we use the varint routines in the util.c
|
|
** file. Code should use the MACRO forms below, as the Varint32 versions
|
|
** are coded to assume the single byte case is already handled (which
|
|
** the MACRO form does).
|
|
*/
|
|
//int sqlite3PutVarint(unsigned char*, u64);
|
|
//int putVarint32(unsigned char*, u32);
|
|
//u8 sqlite3GetVarint(const unsigned char *, u64 );
|
|
//u8 sqlite3GetVarint32(const unsigned char *, u32 );
|
|
//int sqlite3VarintLen(u64 v);
|
|
|
|
/*
|
|
** The header of a record consists of a sequence variable-length integers.
|
|
** These integers are almost always small and are encoded as a single byte.
|
|
** The following macros take advantage this fact to provide a fast encode
|
|
** and decode of the integers in a record header. It is faster for the common
|
|
** case where the integer is a single byte. It is a little slower when the
|
|
** integer is two or more bytes. But overall it is faster.
|
|
**
|
|
** The following expressions are equivalent:
|
|
**
|
|
** x = sqlite3GetVarint32( A, B );
|
|
** x = putVarint32( A, B );
|
|
**
|
|
** x = getVarint32( A, B );
|
|
** x = putVarint32( A, B );
|
|
**
|
|
*/
|
|
//#define getVarint32(A,B) (u8)((*(A)<(u8)0x80) ? ((B) = (u32)*(A)),1 : sqlite3GetVarint32((A), (u32 )&(B)))
|
|
//#define putVarint32(A,B) (u8)(((u32)(B)<(u32)0x80) ? (*(A) = (unsigned char)(B)),1 : sqlite3PutVarint32((A), (B)))
|
|
//#define getVarint sqlite3GetVarint
|
|
//#define putVarint sqlite3PutVarint
|
|
|
|
//string sqlite3IndexAffinityStr(Vdbe *, Index );
|
|
//void sqlite3TableAffinityStr(Vdbe *, Table );
|
|
//char sqlite3CompareAffinity(Expr pExpr, char aff2);
|
|
//int sqlite3IndexAffinityOk(Expr pExpr, char idx_affinity);
|
|
//char sqlite3ExprAffinity(Expr pExpr);
|
|
//int sqlite3Atoi64(const char*, i64*, int, u8);
|
|
//void sqlite3Error(sqlite3*, int, const char*,...);
|
|
//void *sqlite3HexToBlob(sqlite3*, string z, int n);
|
|
//u8 sqlite3HexToInt(int h);
|
|
//int sqlite3TwoPartName(Parse *, Token *, Token *, Token *);
|
|
//string sqlite3ErrStr(int);
|
|
//int sqlite3ReadSchema(Parse pParse);
|
|
//CollSeq *sqlite3FindCollSeq(sqlite3*,u8 enc, const char*,int);
|
|
//CollSeq *sqlite3LocateCollSeq(Parse *pParse, const char*zName);
|
|
//CollSeq *sqlite3ExprCollSeq(Parse pParse, Expr pExpr);
|
|
//Expr *sqlite3ExprSetColl(Expr*, CollSeq);
|
|
//Expr *sqlite3ExprSetCollByToken(Parse *pParse, Expr*, Token);
|
|
//int sqlite3CheckCollSeq(Parse *, CollSeq );
|
|
//int sqlite3CheckObjectName(Parse *, string );
|
|
//void sqlite3VdbeSetChanges(sqlite3 *, int);
|
|
//int sqlite3AddInt64(i64*,i64);
|
|
//int sqlite3SubInt64(i64*,i64);
|
|
//int sqlite3MulInt64(i64*,i64);
|
|
//int sqlite3AbsInt32(int);
|
|
#if SQLITE_ENABLE_8_3_NAMES
|
|
//void sqlite3FileSuffix3(const char*, char);
|
|
#else
|
|
|
|
//# define sqlite3FileSuffix3(X,Y)
|
|
private static void sqlite3FileSuffix3(string X, string Y)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
//u8 sqlite3GetBoolean(string z);
|
|
|
|
//const void *sqlite3ValueText(sqlite3_value*, u8);
|
|
//int sqlite3ValueBytes(sqlite3_value*, u8);
|
|
//void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8,
|
|
// // void()(void));
|
|
//void sqlite3ValueFree(sqlite3_value);
|
|
//sqlite3_value *sqlite3ValueNew(sqlite3 );
|
|
//char *sqlite3Utf16to8(sqlite3 *, const void*, int, u8);
|
|
//#if SQLITE_ENABLE_STAT2
|
|
//char *sqlite3Utf8to16(sqlite3 *, u8, char *, int, int );
|
|
//#endif
|
|
//int sqlite3ValueFromExpr(sqlite3 *, Expr *, u8, u8, sqlite3_value *);
|
|
//void sqlite3ValueApplyAffinity(sqlite3_value *, u8, u8);
|
|
//#if !SQLITE_AMALGAMATION
|
|
//extern const unsigned char sqlite3OpcodeProperty[];
|
|
//extern const unsigned char sqlite3UpperToLower[];
|
|
//extern const unsigned char sqlite3CtypeMap[];
|
|
//extern const Token sqlite3IntTokens[];
|
|
//extern SQLITE_WSD struct Sqlite3Config sqlite3Config;
|
|
//extern SQLITE_WSD FuncDefHash sqlite3GlobalFunctions;
|
|
//#if !SQLITE_OMIT_WSD
|
|
//extern int sqlite3PendingByte;
|
|
//#endif
|
|
//#endif
|
|
//void sqlite3RootPageMoved(sqlite3*, int, int, int);
|
|
//void sqlite3Reindex(Parse*, Token*, Token);
|
|
//void sqlite3AlterFunctions(void);
|
|
//void sqlite3AlterRenameTable(Parse*, SrcList*, Token);
|
|
//int sqlite3GetToken(const unsigned char *, int );
|
|
//void sqlite3NestedParse(Parse*, const char*, ...);
|
|
//void sqlite3ExpirePreparedStatements(sqlite3);
|
|
//int sqlite3CodeSubselect(Parse *, Expr *, int, int);
|
|
//void sqlite3SelectPrep(Parse*, Select*, NameContext);
|
|
//int sqlite3ResolveExprNames(NameContext*, Expr);
|
|
//void sqlite3ResolveSelectNames(Parse*, Select*, NameContext);
|
|
//int sqlite3ResolveOrderGroupBy(Parse*, Select*, ExprList*, const char);
|
|
//void sqlite3ColumnDefault(Vdbe *, Table *, int, int);
|
|
//void sqlite3AlterFinishAddColumn(Parse *, Token );
|
|
//void sqlite3AlterBeginAddColumn(Parse *, SrcList );
|
|
//CollSeq *sqlite3GetCollSeq(sqlite3*, u8, CollSeq *, const char);
|
|
//char sqlite3AffinityType(const char);
|
|
//void sqlite3Analyze(Parse*, Token*, Token);
|
|
//int sqlite3InvokeBusyHandler(BusyHandler);
|
|
//int sqlite3FindDb(sqlite3*, Token);
|
|
//int sqlite3FindDbName(sqlite3 *, string );
|
|
//int sqlite3AnalysisLoad(sqlite3*,int iDB);
|
|
//void sqlite3DeleteIndexSamples(sqlite3*,Index);
|
|
//void sqlite3DefaultRowEst(Index);
|
|
//void sqlite3RegisterLikeFunctions(sqlite3*, int);
|
|
//int sqlite3IsLikeFunction(sqlite3*,Expr*,int*,char);
|
|
//void sqlite3MinimumFileFormat(Parse*, int, int);
|
|
//void sqlite3SchemaClear(void );
|
|
//Schema *sqlite3SchemaGet(sqlite3 *, Btree );
|
|
//int sqlite3SchemaToIndex(sqlite3 db, Schema );
|
|
//KeyInfo *sqlite3IndexKeyinfo(Parse *, Index );
|
|
//int sqlite3CreateFunc(sqlite3 *, string , int, int, object *,
|
|
// void ()(sqlite3_context*,int,sqlite3_value *),
|
|
// void ()(sqlite3_context*,int,sqlite3_value *), object ()(sqlite3_context),
|
|
// FuncDestructor *pDestructor
|
|
//);
|
|
//int sqlite3ApiExit(sqlite3 db, int);
|
|
//int sqlite3OpenTempDatabase(Parse );
|
|
|
|
//void sqlite3StrAccumAppend(StrAccum*,const char*,int);
|
|
//char *sqlite3StrAccumFinish(StrAccum);
|
|
//void sqlite3StrAccumReset(StrAccum);
|
|
//void sqlite3SelectDestInit(SelectDest*,int,int);
|
|
//Expr *sqlite3CreateColumnExpr(sqlite3 *, SrcList *, int, int);
|
|
|
|
//void sqlite3BackupRestart(sqlite3_backup );
|
|
//void sqlite3BackupUpdate(sqlite3_backup *, Pgno, const u8 );
|
|
|
|
/*
|
|
** The interface to the LEMON-generated parser
|
|
*/
|
|
//void *sqlite3ParserAlloc(void*()(size_t));
|
|
//void sqlite3ParserFree(void*, void()(void));
|
|
//void sqlite3Parser(void*, int, Token, Parse);
|
|
#if YYTRACKMAXSTACKDEPTH
|
|
int sqlite3ParserStackPeak(void);
|
|
#endif
|
|
|
|
//void sqlite3AutoLoadExtensions(sqlite3);
|
|
#if !SQLITE_OMIT_LOAD_EXTENSION
|
|
//void sqlite3CloseExtensions(sqlite3);
|
|
#else
|
|
//# define sqlite3CloseExtensions(X)
|
|
#endif
|
|
|
|
#if !SQLITE_OMIT_SHARED_CACHE
|
|
//void sqlite3TableLock(Parse *, int, int, u8, string );
|
|
#else
|
|
|
|
//#define sqlite3TableLock(v,w,x,y,z)
|
|
private static void sqlite3TableLock(Parse p, int p1, int p2, u8 p3, byte[] p4)
|
|
{
|
|
}
|
|
|
|
private static void sqlite3TableLock(Parse p, int p1, int p2, u8 p3, string p4)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
#if SQLITE_TEST
|
|
///int sqlite3Utf8To8(unsigned char);
|
|
#endif
|
|
|
|
#if SQLITE_OMIT_VIRTUALTABLE
|
|
//# define sqlite3VtabClear(D, Y)
|
|
static void sqlite3VtabClear( sqlite3 db, Table Y )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3VtabSync(X,Y) SQLITE_OK
|
|
static int sqlite3VtabSync( sqlite3 X, ref string Y )
|
|
{
|
|
return SQLITE_OK;
|
|
}
|
|
|
|
//# define sqlite3VtabRollback(X)
|
|
static void sqlite3VtabRollback( sqlite3 X )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3VtabCommit(X)
|
|
static void sqlite3VtabCommit( sqlite3 X )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3VtabLock(X)
|
|
static void sqlite3VtabLock( VTable X )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3VtabUnlock(X)
|
|
static void sqlite3VtabUnlock( VTable X )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3VtabUnlockList(X)
|
|
static void sqlite3VtabUnlockList( sqlite3 X )
|
|
{
|
|
}
|
|
//# define sqlite3VtabSavepoint(X, Y, Z) SQLITE_OK
|
|
static int sqlite3VtabSavepoint( sqlite3 X, int Y, int Z )
|
|
{
|
|
return SQLITE_OK;
|
|
}
|
|
//# define sqlite3VtabInSync(db) ((db)->nVTrans>0 && (db)->aVTrans==0)
|
|
static bool sqlite3VtabInSync( sqlite3 db )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
//# define sqlite3VtabArgExtend(P, T)
|
|
static void sqlite3VtabArgExtend( Parse P, Token T )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3VtabArgInit(P)
|
|
static void sqlite3VtabArgInit( Parse P )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3VtabBeginParse(P, T, T1, T2);
|
|
static void sqlite3VtabBeginParse( Parse P, Token T, Token T1, Token T2 )
|
|
{
|
|
}
|
|
|
|
//# define sqlite3VtabFinishParse(P, T)
|
|
static void sqlite3VtabFinishParse<T>( Parse P, T t )
|
|
{
|
|
}
|
|
|
|
static VTable sqlite3GetVTable( sqlite3 db, Table T )
|
|
{
|
|
return null;
|
|
}
|
|
#else
|
|
|
|
//void sqlite3VtabClear(sqlite3 db, Table);
|
|
//int sqlite3VtabSync(sqlite3 db, int rc);
|
|
//int sqlite3VtabRollback(sqlite3 db);
|
|
//int sqlite3VtabCommit(sqlite3 db);
|
|
//void sqlite3VtabLock(VTable );
|
|
//void sqlite3VtabUnlock(VTable );
|
|
//void sqlite3VtabUnlockList(sqlite3);
|
|
//int sqlite3VtabSavepoint(sqlite3 *, int, int);
|
|
//# define sqlite3VtabInSync(db) ((db)->nVTrans>0 && (db)->aVTrans==0)
|
|
private static bool sqlite3VtabInSync(sqlite3 db)
|
|
{
|
|
return (db.nVTrans > 0 && db.aVTrans == null);
|
|
}
|
|
|
|
#endif
|
|
//void sqlite3VtabMakeWritable(Parse*,Table);
|
|
//void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token);
|
|
//void sqlite3VtabFinishParse(Parse*, Token);
|
|
//void sqlite3VtabArgInit(Parse);
|
|
//void sqlite3VtabArgExtend(Parse*, Token);
|
|
//int sqlite3VtabCallCreate(sqlite3*, int, string , char *);
|
|
//int sqlite3VtabCallConnect(Parse*, Table);
|
|
//int sqlite3VtabCallDestroy(sqlite3*, int, string );
|
|
//int sqlite3VtabBegin(sqlite3 *, VTable );
|
|
//FuncDef *sqlite3VtabOverloadFunction(sqlite3 *,FuncDef*, int nArg, Expr);
|
|
//void sqlite3InvalidFunction(sqlite3_context*,int,sqlite3_value*);
|
|
//int sqlite3VdbeParameterIndex(Vdbe*, const char*, int);
|
|
//int sqlite3TransferBindings(sqlite3_stmt *, sqlite3_stmt );
|
|
//int sqlite3Reprepare(Vdbe);
|
|
//void sqlite3ExprListCheckLength(Parse*, ExprList*, const char);
|
|
//CollSeq *sqlite3BinaryCompareCollSeq(Parse *, Expr *, Expr );
|
|
//int sqlite3TempInMemory(const sqlite3);
|
|
//VTable *sqlite3GetVTable(sqlite3*, Table);
|
|
//string sqlite3JournalModename(int);
|
|
//int sqlite3Checkpoint(sqlite3*, int, int, int*, int);
|
|
//int sqlite3WalDefaultHook(void*,sqlite3*,const char*,int);
|
|
|
|
/* Declarations for functions in fkey.c. All of these are replaced by
|
|
** no-op macros if OMIT_FOREIGN_KEY is defined. In this case no foreign
|
|
** key functionality is available. If OMIT_TRIGGER is defined but
|
|
** OMIT_FOREIGN_KEY is not, only some of the functions are no-oped. In
|
|
** this case foreign keys are parsed, but no other functionality is
|
|
** provided (enforcement of FK constraints requires the triggers sub-system).
|
|
*/
|
|
#if !(SQLITE_OMIT_FOREIGN_KEY) && !(SQLITE_OMIT_TRIGGER)
|
|
//void sqlite3FkCheck(Parse*, Table*, int, int);
|
|
//void sqlite3FkDropTable(Parse*, SrcList *, Table);
|
|
//void sqlite3FkActions(Parse*, Table*, ExprList*, int);
|
|
//int sqlite3FkRequired(Parse*, Table*, int*, int);
|
|
//u32 sqlite3FkOldmask(Parse*, Table);
|
|
//FKey *sqlite3FkReferences(vtable );
|
|
#else
|
|
//#define sqlite3FkActions(a,b,c,d)
|
|
static void sqlite3FkActions( Parse a, Table b, ExprList c, int d ) { }
|
|
|
|
//#define sqlite3FkCheck(a,b,c,d)
|
|
static void sqlite3FkCheck( Parse a, Table b, int c, int d ) { }
|
|
|
|
//#define sqlite3FkDropTable(a,b,c)
|
|
static void sqlite3FkDropTable( Parse a, SrcList b, Table c ) { }
|
|
|
|
//#define sqlite3FkOldmask(a,b) 0
|
|
static u32 sqlite3FkOldmask( Parse a, Table b ) { return 0; }
|
|
|
|
//#define sqlite3FkRequired(a,b,c,d) 0
|
|
static int sqlite3FkRequired( Parse a, Table b, int[] c, int d ) { return 0; }
|
|
#endif
|
|
#if !SQLITE_OMIT_FOREIGN_KEY
|
|
//void sqlite3FkDelete(sqlite3 *, Table);
|
|
#else
|
|
//#define sqlite3FkDelete(a, b)
|
|
static void sqlite3FkDelete(sqlite3 a, Table b) {}
|
|
#endif
|
|
|
|
/*
|
|
** Available fault injectors. Should be numbered beginning with 0.
|
|
*/
|
|
private const int SQLITE_FAULTINJECTOR_MALLOC = 0;//#define SQLITE_FAULTINJECTOR_MALLOC 0
|
|
private const int SQLITE_FAULTINJECTOR_COUNT = 1;//#define SQLITE_FAULTINJECTOR_COUNT 1
|
|
|
|
/*
|
|
** The interface to the code in fault.c used for identifying "benign"
|
|
** malloc failures. This is only present if SQLITE_OMIT_BUILTIN_TEST
|
|
** is not defined.
|
|
*/
|
|
#if !SQLITE_OMIT_BUILTIN_TEST
|
|
//void sqlite3BeginBenignMalloc(void);
|
|
//void sqlite3EndBenignMalloc(void);
|
|
#else
|
|
//#define sqlite3BeginBenignMalloc()
|
|
//#define sqlite3EndBenignMalloc()
|
|
#endif
|
|
|
|
private const int IN_INDEX_ROWID = 1;//#define IN_INDEX_ROWID 1
|
|
private const int IN_INDEX_EPH = 2;//#define IN_INDEX_EPH 2
|
|
private const int IN_INDEX_INDEX = 3;//#define IN_INDEX_INDEX 3
|
|
//int sqlite3FindInIndex(Parse *, Expr *, int);
|
|
|
|
#if SQLITE_ENABLE_ATOMIC_WRITE
|
|
// int sqlite3JournalOpen(sqlite3_vfs *, string , sqlite3_file *, int, int);
|
|
// int sqlite3JournalSize(sqlite3_vfs );
|
|
// int sqlite3JournalCreate(sqlite3_file );
|
|
#else
|
|
|
|
//#define sqlite3JournalSize(pVfs) ((pVfs)->szOsFile)
|
|
private static int sqlite3JournalSize(sqlite3_vfs pVfs)
|
|
{
|
|
return pVfs.szOsFile;
|
|
}
|
|
|
|
#endif
|
|
|
|
//void sqlite3MemJournalOpen(sqlite3_file );
|
|
//int sqlite3MemJournalSize(void);
|
|
//int sqlite3IsMemJournal(sqlite3_file );
|
|
|
|
#if SQLITE_MAX_EXPR_DEPTH//>0
|
|
// void sqlite3ExprSetHeight(Parse pParse, Expr p);
|
|
// int sqlite3SelectExprHeight(Select );
|
|
//int sqlite3ExprCheckHeight(Parse*, int);
|
|
#else
|
|
//#define sqlite3ExprSetHeight(x,y)
|
|
//#define sqlite3SelectExprHeight(x) 0
|
|
//#define sqlite3ExprCheckHeight(x,y)
|
|
#endif
|
|
|
|
//u32 sqlite3Get4byte(const u8);
|
|
//void sqlite3sqlite3Put4byte(u8*, u32);
|
|
|
|
#if SQLITE_ENABLE_UNLOCK_NOTIFY
|
|
void sqlite3ConnectionBlocked(sqlite3 *, sqlite3 );
|
|
void sqlite3ConnectionUnlocked(sqlite3 db);
|
|
void sqlite3ConnectionClosed(sqlite3 db);
|
|
#else
|
|
|
|
private static void sqlite3ConnectionBlocked(sqlite3 x, sqlite3 y)
|
|
{
|
|
} //#define sqlite3ConnectionBlocked(x,y)
|
|
|
|
private static void sqlite3ConnectionUnlocked(sqlite3 x)
|
|
{
|
|
} //#define sqlite3ConnectionUnlocked(x)
|
|
|
|
private static void sqlite3ConnectionClosed(sqlite3 x)
|
|
{
|
|
} //#define sqlite3ConnectionClosed(x)
|
|
|
|
#endif
|
|
|
|
#if SQLITE_DEBUG
|
|
// void sqlite3ParserTrace(FILE*, char );
|
|
#endif
|
|
|
|
/*
|
|
** If the SQLITE_ENABLE IOTRACE exists then the global variable
|
|
** sqlite3IoTrace is a pointer to a printf-like routine used to
|
|
** print I/O tracing messages.
|
|
*/
|
|
#if SQLITE_ENABLE_IOTRACE
|
|
static bool SQLite3IoTrace = false;
|
|
//#define IOTRACE(A) if( sqlite3IoTrace ){ sqlite3IoTrace A; }
|
|
static void IOTRACE( string X, params object[] ap ) { if ( SQLite3IoTrace ) { printf( X, ap ); } }
|
|
|
|
// void sqlite3VdbeIOTraceSql(Vdbe);
|
|
//SQLITE_EXTERN void (*sqlite3IoTrace)(const char*,...);
|
|
#else
|
|
|
|
//#define IOTRACE(A)
|
|
private static void IOTRACE(string F, params object[] ap)
|
|
{
|
|
}
|
|
|
|
//#define sqlite3VdbeIOTraceSql(X)
|
|
private static void sqlite3VdbeIOTraceSql(Vdbe X)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
** These routines are available for the mem2.c debugging memory allocator
|
|
** only. They are used to verify that different "types" of memory
|
|
** allocations are properly tracked by the system.
|
|
**
|
|
** sqlite3MemdebugSetType() sets the "type" of an allocation to one of
|
|
** the MEMTYPE_* macros defined below. The type must be a bitmask with
|
|
** a single bit set.
|
|
**
|
|
** sqlite3MemdebugHasType() returns true if any of the bits in its second
|
|
** argument match the type set by the previous sqlite3MemdebugSetType().
|
|
** sqlite3MemdebugHasType() is intended for use inside Debug.Assert() statements.
|
|
**
|
|
** sqlite3MemdebugNoType() returns true if none of the bits in its second
|
|
** argument match the type set by the previous sqlite3MemdebugSetType().
|
|
**
|
|
** Perhaps the most important point is the difference between MEMTYPE_HEAP
|
|
** and MEMTYPE_LOOKASIDE. If an allocation is MEMTYPE_LOOKASIDE, that means
|
|
** it might have been allocated by lookaside, except the allocation was
|
|
** too large or lookaside was already full. It is important to verify
|
|
** that allocations that might have been satisfied by lookaside are not
|
|
** passed back to non-lookaside free() routines. Asserts such as the
|
|
** example above are placed on the non-lookaside free() routines to verify
|
|
** this constraint.
|
|
**
|
|
** All of this is no-op for a production build. It only comes into
|
|
** play when the SQLITE_MEMDEBUG compile-time option is used.
|
|
*/
|
|
#if SQLITE_MEMDEBUG
|
|
// void sqlite3MemdebugSetType(void*,u8);
|
|
// int sqlite3MemdebugHasType(void*,u8);
|
|
// int sqlite3MemdebugNoType(void*,u8);
|
|
#else
|
|
|
|
//# define sqlite3MemdebugSetType(X,Y) /* no-op */
|
|
private static void sqlite3MemdebugSetType<T>(T X, int Y)
|
|
{
|
|
}
|
|
|
|
//# define sqlite3MemdebugHasType(X,Y) 1
|
|
private static bool sqlite3MemdebugHasType<T>(T X, int Y)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
//# define sqlite3MemdebugNoType(X,Y) 1
|
|
private static bool sqlite3MemdebugNoType<T>(T X, int Y)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
#endif
|
|
|
|
//#define MEMTYPE_HEAP 0x01 /* General heap allocations */
|
|
//#define MEMTYPE_LOOKASIDE 0x02 /* Might have been lookaside memory */
|
|
//#define MEMTYPE_SCRATCH 0x04 /* Scratch allocations */
|
|
//#define MEMTYPE_PCACHE 0x08 /* Page cache allocations */
|
|
//#define MEMTYPE_DB 0x10 /* Uses sqlite3DbMalloc, not sqlite_malloc */
|
|
public const int MEMTYPE_HEAP = 0x01;
|
|
|
|
public const int MEMTYPE_LOOKASIDE = 0x02;
|
|
public const int MEMTYPE_SCRATCH = 0x04;
|
|
public const int MEMTYPE_PCACHE = 0x08;
|
|
public const int MEMTYPE_DB = 0x10;
|
|
|
|
//#endif //* _SQLITEINT_H_ */
|
|
}
|
|
} |