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+/*
+** 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: btree.h,v 1.1.1.1 2006/02/03 20:35:21 hoganrobert Exp $
+*/
+#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
+
+/*
+** Forward declarations of structure
+*/
+typedef struct Btree Btree;
+typedef struct BtCursor BtCursor;
+
+
+int sqlite3BtreeOpen(
+ const char *zFilename, /* Name of database file to open */
+ 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 sqlite3BtreeSetPageSize(Btree*,int,int);
+int sqlite3BtreeGetPageSize(Btree*);
+int sqlite3BtreeGetReserve(Btree*);
+int sqlite3BtreeSetAutoVacuum(Btree *, int);
+int sqlite3BtreeGetAutoVacuum(Btree *);
+int sqlite3BtreeBeginTrans(Btree*,int);
+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 sqlite3BtreeSync(Btree*, const char *zMaster);
+int sqlite3BtreeReset(Btree *);
+
+const char *sqlite3BtreeGetFilename(Btree *);
+const char *sqlite3BtreeGetDirname(Btree *);
+const char *sqlite3BtreeGetJournalname(Btree *);
+int sqlite3BtreeCopyFile(Btree *, 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 */
+);
+
+void sqlite3BtreeSetCompare(
+ BtCursor *,
+ int(*)(void*,int,const void*,int,const void*),
+ void*
+);
+
+int sqlite3BtreeCloseCursor(BtCursor*);
+int sqlite3BtreeMoveto(BtCursor*, const void *pKey, i64 nKey, int *pRes);
+int sqlite3BtreeDelete(BtCursor*);
+int sqlite3BtreeInsert(BtCursor*, const void *pKey, i64 nKey,
+ const void *pData, int nData);
+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);
+struct Pager *sqlite3BtreePager(Btree*);
+
+
+#ifdef SQLITE_TEST
+int sqlite3BtreeCursorInfo(BtCursor*, int*, int);
+void sqlite3BtreeCursorList(Btree*);
+#endif
+
+#ifdef SQLITE_DEBUG
+int sqlite3BtreePageDump(Btree*, int, int recursive);
+#else
+#define sqlite3BtreePageDump(X,Y,Z) SQLITE_OK
+#endif
+
+#endif /* _BTREE_H_ */