9f6a67ba17
--HG-- extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401209
150 lines
5.4 KiB
C
150 lines
5.4 KiB
C
/*
|
|
** 2001 September 15
|
|
**
|
|
** The author disclaims copyright to this source code. In place of
|
|
** a legal notice, here is a blessing:
|
|
**
|
|
** May you do good and not evil.
|
|
** May you find forgiveness for yourself and forgive others.
|
|
** May you share freely, never taking more than you give.
|
|
**
|
|
*************************************************************************
|
|
** This header file defines the interface that the sqlite B-Tree file
|
|
** subsystem. See comments in the source code for a detailed description
|
|
** of what each interface routine does.
|
|
**
|
|
** @(#) $Id$
|
|
*/
|
|
#ifndef _BTREE_H_
|
|
#define _BTREE_H_
|
|
|
|
/* TODO: This definition is just included so other modules compile. It
|
|
** needs to be revisited.
|
|
*/
|
|
#define SQLITE_N_BTREE_META 10
|
|
|
|
/*
|
|
** If defined as non-zero, auto-vacuum is enabled by default. Otherwise
|
|
** it must be turned on for each database using "PRAGMA auto_vacuum = 1".
|
|
*/
|
|
#ifndef SQLITE_DEFAULT_AUTOVACUUM
|
|
#define SQLITE_DEFAULT_AUTOVACUUM 0
|
|
#endif
|
|
|
|
#define BTREE_AUTOVACUUM_NONE 0 /* Do not do auto-vacuum */
|
|
#define BTREE_AUTOVACUUM_FULL 1 /* Do full auto-vacuum */
|
|
#define BTREE_AUTOVACUUM_INCR 2 /* Incremental vacuum */
|
|
|
|
/*
|
|
** Forward declarations of structure
|
|
*/
|
|
typedef struct Btree Btree;
|
|
typedef struct BtCursor BtCursor;
|
|
typedef struct BtShared BtShared;
|
|
|
|
|
|
int sqlite3BtreeOpen(
|
|
const char *zFilename, /* Name of database file to open */
|
|
sqlite3 *db, /* Associated database connection */
|
|
Btree **, /* Return open Btree* here */
|
|
int flags /* Flags */
|
|
);
|
|
|
|
/* The flags parameter to sqlite3BtreeOpen can be the bitwise or of the
|
|
** following values.
|
|
**
|
|
** NOTE: These values must match the corresponding PAGER_ values in
|
|
** pager.h.
|
|
*/
|
|
#define BTREE_OMIT_JOURNAL 1 /* Do not use journal. No argument */
|
|
#define BTREE_NO_READLOCK 2 /* Omit readlocks on readonly files */
|
|
#define BTREE_MEMORY 4 /* In-memory DB. No argument */
|
|
|
|
int sqlite3BtreeClose(Btree*);
|
|
int sqlite3BtreeSetBusyHandler(Btree*,BusyHandler*);
|
|
int sqlite3BtreeSetCacheSize(Btree*,int);
|
|
int sqlite3BtreeSetSafetyLevel(Btree*,int,int);
|
|
int sqlite3BtreeSyncDisabled(Btree*);
|
|
int sqlite3BtreeSetPageSize(Btree*,int,int);
|
|
int sqlite3BtreeGetPageSize(Btree*);
|
|
int sqlite3BtreeMaxPageCount(Btree*,int);
|
|
int sqlite3BtreeGetReserve(Btree*);
|
|
int sqlite3BtreeSetAutoVacuum(Btree *, int);
|
|
int sqlite3BtreeGetAutoVacuum(Btree *);
|
|
int sqlite3BtreeBeginTrans(Btree*,int);
|
|
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 sqlite3BtreeCreateTable(Btree*, int*, int flags);
|
|
int sqlite3BtreeIsInTrans(Btree*);
|
|
int sqlite3BtreeIsInStmt(Btree*);
|
|
int sqlite3BtreeIsInReadTrans(Btree*);
|
|
void *sqlite3BtreeSchema(Btree *, int, void(*)(void *));
|
|
int sqlite3BtreeSchemaLocked(Btree *);
|
|
int sqlite3BtreeLockTable(Btree *, int, u8);
|
|
|
|
const char *sqlite3BtreeGetFilename(Btree *);
|
|
const char *sqlite3BtreeGetDirname(Btree *);
|
|
const char *sqlite3BtreeGetJournalname(Btree *);
|
|
int sqlite3BtreeCopyFile(Btree *, Btree *);
|
|
|
|
int sqlite3BtreeIncrVacuum(Btree *);
|
|
|
|
/* The flags parameter to sqlite3BtreeCreateTable can be the bitwise OR
|
|
** of the following flags:
|
|
*/
|
|
#define BTREE_INTKEY 1 /* Table has only 64-bit signed integer keys */
|
|
#define BTREE_ZERODATA 2 /* Table has keys only - no data */
|
|
#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 sqlite3BtreeCursor(
|
|
Btree*, /* BTree containing table to open */
|
|
int iTable, /* Index of root page */
|
|
int wrFlag, /* 1 for writing. 0 for read-only */
|
|
int(*)(void*,int,const void*,int,const void*), /* Key comparison function */
|
|
void*, /* First argument to compare function */
|
|
BtCursor **ppCursor /* Returned cursor */
|
|
);
|
|
|
|
int sqlite3BtreeCloseCursor(BtCursor*);
|
|
int sqlite3BtreeMoveto(BtCursor*,const void *pKey,i64 nKey,int bias,int *pRes);
|
|
int sqlite3BtreeDelete(BtCursor*);
|
|
int sqlite3BtreeInsert(BtCursor*, const void *pKey, i64 nKey,
|
|
const void *pData, int nData,
|
|
int nZero, int bias);
|
|
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*);
|
|
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*);
|
|
|
|
char *sqlite3BtreeIntegrityCheck(Btree*, int *aRoot, int nRoot, int, int*);
|
|
struct Pager *sqlite3BtreePager(Btree*);
|
|
|
|
int sqlite3BtreePutData(BtCursor*, u32 offset, u32 amt, void*);
|
|
void sqlite3BtreeCacheOverflow(BtCursor *);
|
|
|
|
#ifdef SQLITE_TEST
|
|
int sqlite3BtreeCursorInfo(BtCursor*, int*, int);
|
|
void sqlite3BtreeCursorList(Btree*);
|
|
int sqlite3BtreePageDump(Btree*, int, int recursive);
|
|
#endif
|
|
|
|
#endif /* _BTREE_H_ */
|