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Snapshot of upstream SQLite 3.7.17

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This commit is contained in:
Nick Parker
2013-05-21 15:38:11 -05:00
parent 7d88842525
commit 67300dfce8
195 changed files with 7166 additions and 6391 deletions
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src/sqliteInt.h
+119 -34
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@@ -66,6 +66,10 @@
# define _GNU_SOURCE
#endif
#if defined(__OpenBSD__) && !defined(_BSD_SOURCE)
# define _BSD_SOURCE
#endif
/*
** Include standard header files as necessary
*/
@@ -118,11 +122,11 @@
** We support that for legacy.
*/
#if !defined(SQLITE_THREADSAFE)
#if defined(THREADSAFE)
# define SQLITE_THREADSAFE THREADSAFE
#else
# define SQLITE_THREADSAFE 1 /* IMP: R-07272-22309 */
#endif
# if defined(THREADSAFE)
# define SQLITE_THREADSAFE THREADSAFE
# else
# define SQLITE_THREADSAFE 1 /* IMP: R-07272-22309 */
# endif
#endif
/*
@@ -200,7 +204,8 @@
**
** See also ticket #2741.
*/
#if !defined(_XOPEN_SOURCE) && !defined(__DARWIN__) && !defined(__APPLE__) && SQLITE_THREADSAFE
#if !defined(_XOPEN_SOURCE) && !defined(__DARWIN__) \
&& !defined(__APPLE__) && SQLITE_THREADSAFE
# define _XOPEN_SOURCE 500 /* Needed to enable pthread recursive mutexes */
#endif
@@ -387,6 +392,7 @@
*/
#ifndef SQLITE_TEMP_STORE
# define SQLITE_TEMP_STORE 1
# define SQLITE_TEMP_STORE_xc 1 /* Exclude from ctime.c */
#endif
/*
@@ -534,6 +540,49 @@ extern const int sqlite3one;
# define EIGHT_BYTE_ALIGNMENT(X) ((((char*)(X) - (char*)0)&7)==0)
#endif
/*
** Disable MMAP on platforms where it is known to not work
*/
#if defined(__OpenBSD__) || defined(__QNXNTO__)
# undef SQLITE_MAX_MMAP_SIZE
# define SQLITE_MAX_MMAP_SIZE 0
#endif
/*
** Default maximum size of memory used by memory-mapped I/O in the VFS
*/
#ifdef __APPLE__
# include <TargetConditionals.h>
# if TARGET_OS_IPHONE
# undef SQLITE_MAX_MMAP_SIZE
# define SQLITE_MAX_MMAP_SIZE 0
# endif
#endif
#ifndef SQLITE_MAX_MMAP_SIZE
# if defined(__linux__) \
|| defined(_WIN32) \
|| (defined(__APPLE__) && defined(__MACH__)) \
|| defined(__sun)
# define SQLITE_MAX_MMAP_SIZE 0x7fff0000 /* 2147418112 */
# else
# define SQLITE_MAX_MMAP_SIZE 0
# endif
# define SQLITE_MAX_MMAP_SIZE_xc 1 /* exclude from ctime.c */
#endif
/*
** The default MMAP_SIZE is zero on all platforms. Or, even if a larger
** default MMAP_SIZE is specified at compile-time, make sure that it does
** not exceed the maximum mmap size.
*/
#ifndef SQLITE_DEFAULT_MMAP_SIZE
# define SQLITE_DEFAULT_MMAP_SIZE 0
# define SQLITE_DEFAULT_MMAP_SIZE_xc 1 /* Exclude from ctime.c */
#endif
#if SQLITE_DEFAULT_MMAP_SIZE>SQLITE_MAX_MMAP_SIZE
# undef SQLITE_DEFAULT_MMAP_SIZE
# define SQLITE_DEFAULT_MMAP_SIZE SQLITE_MAX_MMAP_SIZE
#endif
/*
** An instance of the following structure is used to store the busy-handler
@@ -575,6 +624,11 @@ struct BusyHandler {
*/
#define ArraySize(X) ((int)(sizeof(X)/sizeof(X[0])))
/*
** Determine if the argument is a power of two
*/
#define IsPowerOfTwo(X) (((X)&((X)-1))==0)
/*
** The following value as a destructor means to use sqlite3DbFree().
** The sqlite3DbFree() routine requires two parameters instead of the
@@ -824,6 +878,7 @@ struct sqlite3 {
int nDb; /* Number of backends currently in use */
int flags; /* Miscellaneous flags. See below */
i64 lastRowid; /* ROWID of most recent insert (see above) */
i64 szMmap; /* Default mmap_size setting */
unsigned int openFlags; /* Flags passed to sqlite3_vfs.xOpen() */
int errCode; /* Most recent error code (SQLITE_*) */
int errMask; /* & result codes with this before returning */
@@ -944,7 +999,7 @@ struct sqlite3 {
#define SQLITE_SqlTrace 0x00000040 /* Debug print SQL as it executes */
#define SQLITE_VdbeListing 0x00000080 /* Debug listings of VDBE programs */
#define SQLITE_WriteSchema 0x00000100 /* OK to update SQLITE_MASTER */
/* 0x00000200 Unused */
#define SQLITE_VdbeAddopTrace 0x00000200 /* Trace sqlite3VdbeAddOp() calls */
#define SQLITE_IgnoreChecks 0x00000400 /* Do not enforce check constraints */
#define SQLITE_ReadUncommitted 0x0000800 /* For shared-cache mode */
#define SQLITE_LegacyFileFmt 0x00001000 /* Create new databases in format 1 */
@@ -973,6 +1028,7 @@ struct sqlite3 {
#define SQLITE_CoverIdxScan 0x0040 /* Covering index scans */
#define SQLITE_OrderByIdxJoin 0x0080 /* ORDER BY of joins via index */
#define SQLITE_SubqCoroutine 0x0100 /* Evaluate subqueries as coroutines */
#define SQLITE_Transitive 0x0200 /* Transitive constraints */
#define SQLITE_AllOpts 0xffff /* All optimizations */
/*
@@ -1484,20 +1540,20 @@ struct UnpackedRecord {
** element.
*/
struct Index {
char *zName; /* Name of this index */
int *aiColumn; /* Which columns are used by this index. 1st is 0 */
tRowcnt *aiRowEst; /* Result of ANALYZE: Est. rows selected by each column */
Table *pTable; /* The SQL table being indexed */
char *zColAff; /* String defining the affinity of each column */
Index *pNext; /* The next index associated with the same table */
Schema *pSchema; /* Schema containing this index */
u8 *aSortOrder; /* Array of size Index.nColumn. True==DESC, False==ASC */
char **azColl; /* Array of collation sequence names for index */
int nColumn; /* Number of columns in the table used by this index */
int tnum; /* Page containing root of this index in database file */
u8 onError; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
u8 autoIndex; /* True if is automatically created (ex: by UNIQUE) */
u8 bUnordered; /* Use this index for == or IN queries only */
char *zName; /* Name of this index */
int *aiColumn; /* Which columns are used by this index. 1st is 0 */
tRowcnt *aiRowEst; /* From ANALYZE: Est. rows selected by each column */
Table *pTable; /* The SQL table being indexed */
char *zColAff; /* String defining the affinity of each column */
Index *pNext; /* The next index associated with the same table */
Schema *pSchema; /* Schema containing this index */
u8 *aSortOrder; /* for each column: True==DESC, False==ASC */
char **azColl; /* Array of collation sequence names for index */
int tnum; /* DB Page containing root of this index */
u16 nColumn; /* Number of columns in table used by this index */
u8 onError; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
unsigned autoIndex:2; /* 1==UNIQUE, 2==PRIMARY KEY, 0==CREATE INDEX */
unsigned bUnordered:1; /* Use this index for == or IN queries only */
#ifdef SQLITE_ENABLE_STAT3
int nSample; /* Number of elements in aSample[] */
tRowcnt avgEq; /* Average nEq value for key values not in aSample */
@@ -1771,18 +1827,27 @@ struct Expr {
** 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.
**
** By default the Expr.zSpan field holds a human-readable description of
** the expression that is used in the generation of error messages and
** column labels. In this case, Expr.zSpan is typically the text of a
** column expression as it exists in a SELECT statement. However, if
** the bSpanIsTab flag is set, then zSpan is overloaded to mean the name
** of the result column in the form: DATABASE.TABLE.COLUMN. This later
** form is used for name resolution with nested FROM clauses.
*/
struct ExprList {
int nExpr; /* Number of expressions on the list */
int iECursor; /* VDBE Cursor associated with this ExprList */
struct ExprList_item { /* For each expression in the list */
Expr *pExpr; /* The list of expressions */
char *zName; /* Token associated with this expression */
char *zSpan; /* Original text of the expression */
u8 sortOrder; /* 1 for DESC or 0 for ASC */
u8 done; /* A flag to indicate when processing is finished */
u16 iOrderByCol; /* For ORDER BY, column number in result set */
u16 iAlias; /* Index into Parse.aAlias[] for zName */
Expr *pExpr; /* The list of expressions */
char *zName; /* Token associated with this expression */
char *zSpan; /* Original text of the expression */
u8 sortOrder; /* 1 for DESC or 0 for ASC */
unsigned done :1; /* A flag to indicate when processing is finished */
unsigned bSpanIsTab :1; /* zSpan holds DB.TABLE.COLUMN */
u16 iOrderByCol; /* For ORDER BY, column number in result set */
u16 iAlias; /* Index into Parse.aAlias[] for zName */
} *a; /* Alloc a power of two greater or equal to nExpr */
};
@@ -1950,6 +2015,7 @@ struct WhereLevel {
struct InLoop {
int iCur; /* The VDBE cursor used by this IN operator */
int addrInTop; /* Top of the IN loop */
u8 eEndLoopOp; /* IN Loop terminator. OP_Next or OP_Prev */
} *aInLoop; /* Information about each nested IN operator */
} in; /* Used when plan.wsFlags&WHERE_IN_ABLE */
Index *pCovidx; /* Possible covering index for WHERE_MULTI_OR */
@@ -2049,6 +2115,8 @@ struct NameContext {
#define NC_HasAgg 0x02 /* One or more aggregate functions seen */
#define NC_IsCheck 0x04 /* True if resolving names in a CHECK constraint */
#define NC_InAggFunc 0x08 /* True if analyzing arguments to an agg func */
#define NC_AsMaybe 0x10 /* Resolve to AS terms of the result set only
** if no other resolution is available */
/*
** An instance of the following structure contains all information
@@ -2102,6 +2170,7 @@ struct Select {
#define SF_UseSorter 0x0040 /* Sort using a sorter */
#define SF_Values 0x0080 /* Synthesized from VALUES clause */
#define SF_Materialize 0x0100 /* Force materialization of views */
#define SF_NestedFrom 0x0200 /* Part of a parenthesized FROM clause */
/*
@@ -2483,6 +2552,8 @@ struct Sqlite3Config {
void *pHeap; /* Heap storage space */
int nHeap; /* Size of pHeap[] */
int mnReq, mxReq; /* Min and max heap requests sizes */
sqlite3_int64 szMmap; /* mmap() space per open file */
sqlite3_int64 mxMmap; /* Maximum value for szMmap */
void *pScratch; /* Scratch memory */
int szScratch; /* Size of each scratch buffer */
int nScratch; /* Number of scratch buffers */
@@ -2517,6 +2588,7 @@ struct Walker {
int (*xSelectCallback)(Walker*,Select*); /* Callback for SELECTs */
Parse *pParse; /* Parser context. */
int walkerDepth; /* Number of subqueries */
u8 bSelectDepthFirst; /* Do subqueries first */
union { /* Extra data for callback */
NameContext *pNC; /* Naming context */
int i; /* Integer value */
@@ -2814,13 +2886,13 @@ Index *sqlite3CreateIndex(Parse*,Token*,Token*,SrcList*,ExprList*,int,Token*,
void sqlite3DropIndex(Parse*, SrcList*, int);
int sqlite3Select(Parse*, Select*, SelectDest*);
Select *sqlite3SelectNew(Parse*,ExprList*,SrcList*,Expr*,ExprList*,
Expr*,ExprList*,int,Expr*,Expr*);
Expr*,ExprList*,u16,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 defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY)
Expr *sqlite3LimitWhere(Parse *, SrcList *, Expr *, ExprList *, Expr *, Expr *, char *);
Expr *sqlite3LimitWhere(Parse*,SrcList*,Expr*,ExprList*,Expr*,Expr*,char*);
#endif
void sqlite3DeleteFrom(Parse*, SrcList*, Expr*);
void sqlite3Update(Parse*, SrcList*, ExprList*, Expr*, int);
@@ -2888,7 +2960,7 @@ int sqlite3OpenTableAndIndices(Parse*, Table*, int, int);
void sqlite3BeginWriteOperation(Parse*, int, int);
void sqlite3MultiWrite(Parse*);
void sqlite3MayAbort(Parse*);
void sqlite3HaltConstraint(Parse*, int, char*, int);
void sqlite3HaltConstraint(Parse*, int, int, char*, int);
Expr *sqlite3ExprDup(sqlite3*,Expr*,int);
ExprList *sqlite3ExprListDup(sqlite3*,ExprList*,int);
SrcList *sqlite3SrcListDup(sqlite3*,SrcList*,int);
@@ -3001,8 +3073,11 @@ int sqlite3VarintLen(u64 v);
** 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 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
@@ -3017,6 +3092,12 @@ void sqlite3Error(sqlite3*, int, const char*,...);
void *sqlite3HexToBlob(sqlite3*, const char *z, int n);
u8 sqlite3HexToInt(int h);
int sqlite3TwoPartName(Parse *, Token *, Token *, Token **);
#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST) || \
defined(SQLITE_DEBUG_OS_TRACE)
const char *sqlite3ErrName(int);
#endif
const char *sqlite3ErrStr(int);
int sqlite3ReadSchema(Parse *pParse);
CollSeq *sqlite3FindCollSeq(sqlite3*,u8 enc, const char*,int);
@@ -3071,6 +3152,7 @@ void sqlite3NestedParse(Parse*, const char*, ...);
void sqlite3ExpirePreparedStatements(sqlite3*);
int sqlite3CodeSubselect(Parse *, Expr *, int, int);
void sqlite3SelectPrep(Parse*, Select*, NameContext*);
int sqlite3MatchSpanName(const char*, const char*, const char*, const char*);
int sqlite3ResolveExprNames(NameContext*, Expr*);
void sqlite3ResolveSelectNames(Parse*, Select*, NameContext*);
int sqlite3ResolveOrderGroupBy(Parse*, Select*, ExprList*, const char*);
@@ -3209,8 +3291,10 @@ const char *sqlite3JournalModename(int);
#endif
#ifndef SQLITE_OMIT_FOREIGN_KEY
void sqlite3FkDelete(sqlite3 *, Table*);
int sqlite3FkLocateIndex(Parse*,Table*,FKey*,Index**,int**);
#else
#define sqlite3FkDelete(a,b)
#define sqlite3FkLocateIndex(a,b,c,d,e)
#endif
@@ -3235,7 +3319,8 @@ const char *sqlite3JournalModename(int);
#define IN_INDEX_ROWID 1
#define IN_INDEX_EPH 2
#define IN_INDEX_INDEX 3
#define IN_INDEX_INDEX_ASC 3
#define IN_INDEX_INDEX_DESC 4
int sqlite3FindInIndex(Parse *, Expr *, int*);
#ifdef SQLITE_ENABLE_ATOMIC_WRITE