diff options
Diffstat (limited to 'third_party/sqlite/src/btree.h')
| -rw-r--r-- | third_party/sqlite/src/btree.h | 105 |
1 files changed, 64 insertions, 41 deletions
diff --git a/third_party/sqlite/src/btree.h b/third_party/sqlite/src/btree.h index 3fe01cb..ce44756 100644 --- a/third_party/sqlite/src/btree.h +++ b/third_party/sqlite/src/btree.h @@ -13,7 +13,7 @@ ** subsystem. See comments in the source code for a detailed description ** of what each interface routine does. ** -** @(#) $Id: btree.h,v 1.102 2008/07/11 21:02:54 drh Exp $ +** @(#) $Id: btree.h,v 1.120 2009/07/22 00:35:24 drh Exp $ */ #ifndef _BTREE_H_ #define _BTREE_H_ @@ -58,7 +58,7 @@ struct BtreeMutexArray { int sqlite3BtreeOpen( const char *zFilename, /* Name of database file to open */ sqlite3 *db, /* Associated database connection */ - Btree **, /* Return open Btree* here */ + Btree **ppBtree, /* Return open Btree* here */ int flags, /* Flags */ int vfsFlags /* Flags passed through to VFS open */ ); @@ -80,7 +80,7 @@ int sqlite3BtreeClose(Btree*); int sqlite3BtreeSetCacheSize(Btree*,int); int sqlite3BtreeSetSafetyLevel(Btree*,int,int); int sqlite3BtreeSyncDisabled(Btree*); -int sqlite3BtreeSetPageSize(Btree*,int,int); +int sqlite3BtreeSetPageSize(Btree *p, int nPagesize, int nReserve, int eFix); int sqlite3BtreeGetPageSize(Btree*); int sqlite3BtreeMaxPageCount(Btree*,int); int sqlite3BtreeGetReserve(Btree*); @@ -91,19 +91,17 @@ int sqlite3BtreeCommitPhaseOne(Btree*, const char *zMaster); int sqlite3BtreeCommitPhaseTwo(Btree*); int sqlite3BtreeCommit(Btree*); int sqlite3BtreeRollback(Btree*); -int sqlite3BtreeBeginStmt(Btree*); -int sqlite3BtreeCommitStmt(Btree*); -int sqlite3BtreeRollbackStmt(Btree*); +int sqlite3BtreeBeginStmt(Btree*,int); int sqlite3BtreeCreateTable(Btree*, int*, int flags); int sqlite3BtreeIsInTrans(Btree*); -int sqlite3BtreeIsInStmt(Btree*); int sqlite3BtreeIsInReadTrans(Btree*); +int sqlite3BtreeIsInBackup(Btree*); void *sqlite3BtreeSchema(Btree *, int, void(*)(void *)); -int sqlite3BtreeSchemaLocked(Btree *); -int sqlite3BtreeLockTable(Btree *, int, u8); +int sqlite3BtreeSchemaLocked(Btree *pBtree); +int sqlite3BtreeLockTable(Btree *pBtree, int iTab, u8 isWriteLock); +int sqlite3BtreeSavepoint(Btree *, int, int); const char *sqlite3BtreeGetFilename(Btree *); -const char *sqlite3BtreeGetDirname(Btree *); const char *sqlite3BtreeGetJournalname(Btree *); int sqlite3BtreeCopyFile(Btree *, Btree *); @@ -117,12 +115,32 @@ int sqlite3BtreeIncrVacuum(Btree *); #define BTREE_LEAFDATA 4 /* Data stored in leaves only. Implies INTKEY */ int sqlite3BtreeDropTable(Btree*, int, int*); -int sqlite3BtreeClearTable(Btree*, int); -int sqlite3BtreeGetMeta(Btree*, int idx, u32 *pValue); -int sqlite3BtreeUpdateMeta(Btree*, int idx, u32 value); +int sqlite3BtreeClearTable(Btree*, int, int*); void sqlite3BtreeTripAllCursors(Btree*, int); -struct UnpackedRecord; /* Forward declaration. Definition in vdbeaux.c. */ +void sqlite3BtreeGetMeta(Btree *pBtree, int idx, u32 *pValue); +int sqlite3BtreeUpdateMeta(Btree*, int idx, u32 value); + +/* +** The second parameter to sqlite3BtreeGetMeta or sqlite3BtreeUpdateMeta +** should be one of the following values. The integer values are assigned +** to constants so that the offset of the corresponding field in an +** SQLite database header may be found using the following formula: +** +** offset = 36 + (idx * 4) +** +** For example, the free-page-count field is located at byte offset 36 of +** the database file header. The incr-vacuum-flag field is located at +** byte offset 64 (== 36+4*7). +*/ +#define BTREE_FREE_PAGE_COUNT 0 +#define BTREE_SCHEMA_VERSION 1 +#define BTREE_FILE_FORMAT 2 +#define BTREE_DEFAULT_CACHE_SIZE 3 +#define BTREE_LARGEST_ROOT_PAGE 4 +#define BTREE_TEXT_ENCODING 5 +#define BTREE_USER_VERSION 6 +#define BTREE_INCR_VACUUM 7 int sqlite3BtreeCursor( Btree*, /* BTree containing table to open */ @@ -134,11 +152,10 @@ int sqlite3BtreeCursor( int sqlite3BtreeCursorSize(void); int sqlite3BtreeCloseCursor(BtCursor*); -int sqlite3BtreeMoveto( +int sqlite3BtreeMovetoUnpacked( BtCursor*, - const void *pKey, - struct UnpackedRecord *pUnKey, - i64 nKey, + UnpackedRecord *pUnKey, + i64 intKey, int bias, int *pRes ); @@ -146,26 +163,35 @@ int sqlite3BtreeCursorHasMoved(BtCursor*, int*); int sqlite3BtreeDelete(BtCursor*); int sqlite3BtreeInsert(BtCursor*, const void *pKey, i64 nKey, const void *pData, int nData, - int nZero, int bias); + int nZero, int bias, int seekResult); int sqlite3BtreeFirst(BtCursor*, int *pRes); int sqlite3BtreeLast(BtCursor*, int *pRes); int sqlite3BtreeNext(BtCursor*, int *pRes); int sqlite3BtreeEof(BtCursor*); -int sqlite3BtreeFlags(BtCursor*); int sqlite3BtreePrevious(BtCursor*, int *pRes); int sqlite3BtreeKeySize(BtCursor*, i64 *pSize); int sqlite3BtreeKey(BtCursor*, u32 offset, u32 amt, void*); -sqlite3 *sqlite3BtreeCursorDb(const BtCursor*); const void *sqlite3BtreeKeyFetch(BtCursor*, int *pAmt); const void *sqlite3BtreeDataFetch(BtCursor*, int *pAmt); int sqlite3BtreeDataSize(BtCursor*, u32 *pSize); int sqlite3BtreeData(BtCursor*, u32 offset, u32 amt, void*); +void sqlite3BtreeSetCachedRowid(BtCursor*, sqlite3_int64); +sqlite3_int64 sqlite3BtreeGetCachedRowid(BtCursor*); char *sqlite3BtreeIntegrityCheck(Btree*, int *aRoot, int nRoot, int, int*); struct Pager *sqlite3BtreePager(Btree*); int sqlite3BtreePutData(BtCursor*, u32 offset, u32 amt, void*); void sqlite3BtreeCacheOverflow(BtCursor *); +void sqlite3BtreeClearCursor(BtCursor *); + +#ifndef NDEBUG +int sqlite3BtreeCursorIsValid(BtCursor*); +#endif + +#ifndef SQLITE_OMIT_BTREECOUNT +int sqlite3BtreeCount(BtCursor *, i64 *); +#endif #ifdef SQLITE_TEST int sqlite3BtreeCursorInfo(BtCursor*, int*, int); @@ -177,42 +203,39 @@ void sqlite3BtreeCursorList(Btree*); ** use mutexes to access the BtShared structures. So make the ** Enter and Leave procedures no-ops. */ -#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE +#ifndef SQLITE_OMIT_SHARED_CACHE void sqlite3BtreeEnter(Btree*); - void sqlite3BtreeLeave(Btree*); -#ifndef NDEBUG - /* This routine is used inside assert() statements only. */ - int sqlite3BtreeHoldsMutex(Btree*); + void sqlite3BtreeEnterAll(sqlite3*); +#else +# define sqlite3BtreeEnter(X) +# define sqlite3BtreeEnterAll(X) #endif + +#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE + void sqlite3BtreeLeave(Btree*); void sqlite3BtreeEnterCursor(BtCursor*); void sqlite3BtreeLeaveCursor(BtCursor*); - void sqlite3BtreeEnterAll(sqlite3*); void sqlite3BtreeLeaveAll(sqlite3*); -#ifndef NDEBUG - /* This routine is used inside assert() statements only. */ - int sqlite3BtreeHoldsAllMutexes(sqlite3*); -#endif void sqlite3BtreeMutexArrayEnter(BtreeMutexArray*); void sqlite3BtreeMutexArrayLeave(BtreeMutexArray*); void sqlite3BtreeMutexArrayInsert(BtreeMutexArray*, Btree*); -#else -# define sqlite3BtreeEnter(X) -# define sqlite3BtreeLeave(X) #ifndef NDEBUG - /* This routine is used inside assert() statements only. */ -# define sqlite3BtreeHoldsMutex(X) 1 + /* These routines are used inside assert() statements only. */ + int sqlite3BtreeHoldsMutex(Btree*); + int sqlite3BtreeHoldsAllMutexes(sqlite3*); #endif +#else + +# define sqlite3BtreeLeave(X) # define sqlite3BtreeEnterCursor(X) # define sqlite3BtreeLeaveCursor(X) -# define sqlite3BtreeEnterAll(X) # define sqlite3BtreeLeaveAll(X) -#ifndef NDEBUG - /* This routine is used inside assert() statements only. */ -# define sqlite3BtreeHoldsAllMutexes(X) 1 -#endif # define sqlite3BtreeMutexArrayEnter(X) # define sqlite3BtreeMutexArrayLeave(X) # define sqlite3BtreeMutexArrayInsert(X,Y) + +# define sqlite3BtreeHoldsMutex(X) 1 +# define sqlite3BtreeHoldsAllMutexes(X) 1 #endif |