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diff --git a/libraries/sqlite/win32/btree.h b/libraries/sqlite/win32/btree.h
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+++ b/libraries/sqlite/win32/btree.h
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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 1.93 2007/09/03 15:19:35 drh 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
+
+#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;
+typedef struct BtreeMutexArray BtreeMutexArray;
+
+/*
+** This structure records all of the Btrees that need to hold
+** a mutex before we enter sqlite3VdbeExec().  The Btrees are
+** are placed in aBtree[] in order of aBtree[]->pBt.  That way,
+** we can always lock and unlock them all quickly.
+*/
+struct BtreeMutexArray {
+  int nMutex;
+  Btree *aBtree[SQLITE_MAX_ATTACHED+1];
+};
+
+
+int sqlite3BtreeOpen(
+  const char *zFilename,   /* Name of database file to open */
+  sqlite3 *db,             /* Associated database connection */
+  Btree **,                /* Return open Btree* here */
+  int flags,               /* Flags */
+  int vfsFlags             /* Flags passed through to VFS open */
+);
+
+/* 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 */
+#define BTREE_READONLY      8  /* Open the database in read-only mode */
+#define BTREE_READWRITE    16  /* Open for both reading and writing */
+#define BTREE_CREATE       32  /* Create the database if it does not exist */
+
+/* Additional values for the 4th argument of sqlite3BtreeOpen that
+** are not associated with PAGER_ values.
+*/
+#define BTREE_PRIVATE      64  /* Never share with other connections */
+
+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);
+void sqlite3BtreeTripAllCursors(Btree*, int);
+
+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*);
+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*);
+
+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
+
+/*
+** If we are not using shared cache, then there is no need to
+** use mutexes to access the BtShared structures.  So make the
+** Enter and Leave procedures no-ops.
+*/
+#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE
+  void sqlite3BtreeEnter(Btree*);
+  void sqlite3BtreeLeave(Btree*);
+  int sqlite3BtreeHoldsMutex(Btree*);
+  void sqlite3BtreeEnterCursor(BtCursor*);
+  void sqlite3BtreeLeaveCursor(BtCursor*);
+  void sqlite3BtreeEnterAll(sqlite3*);
+  void sqlite3BtreeLeaveAll(sqlite3*);
+  int sqlite3BtreeHoldsAllMutexes(sqlite3*);
+  void sqlite3BtreeMutexArrayEnter(BtreeMutexArray*);
+  void sqlite3BtreeMutexArrayLeave(BtreeMutexArray*);
+  void sqlite3BtreeMutexArrayInsert(BtreeMutexArray*, Btree*);
+#else
+# define sqlite3BtreeEnter(X)
+# define sqlite3BtreeLeave(X)
+# define sqlite3BtreeHoldsMutex(X) 1
+# define sqlite3BtreeEnterCursor(X)
+# define sqlite3BtreeLeaveCursor(X)
+# define sqlite3BtreeEnterAll(X)
+# define sqlite3BtreeLeaveAll(X)
+# define sqlite3BtreeHoldsAllMutexes(X) 1
+# define sqlite3BtreeMutexArrayEnter(X)
+# define sqlite3BtreeMutexArrayLeave(X)
+# define sqlite3BtreeMutexArrayInsert(X,Y)
+#endif
+
+
+#endif /* _BTREE_H_ */