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Initial implementation of variable page sizes and the temp_store pragma. (CVS 1843)

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FossilOrigin-Name: 4cf6e9db757931aba2f300b7869305434d6f2d2b
This commit is contained in:
drh
2004-07-22 01:19:35 +00:00
parent 900dfba8ef
commit 90f5ecb39d
13 changed files with 387 additions and 216 deletions
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src/sqliteInt.h
+21 -19
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.306 2004/07/20 12:45:22 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.307 2004/07/22 01:19:35 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -139,7 +139,23 @@ extern const int sqlite3one;
typedef struct sqlite sqlite;
/*
** Defer sourcing vdbe.h until after the "u8" typedef is defined.
** An instance of the following structure is used to store the busy-handler
** callback for a given sqlite handle.
**
** The sqlite.busyHandler member of the sqlite struct contains the busy
** callback for the database handle. Each pager opened via the sqlite
** handle is passed a pointer to sqlite.busyHandler. The busy-handler
** callback is currently invoked only from within pager.c.
*/
typedef struct BusyHandler BusyHandler;
struct BusyHandler {
int (*xFunc)(void *,int); /* The busy callback */
void *pArg; /* First arg to busy callback */
};
/*
** Defer sourcing vdbe.h and btree.h until after the "u8" and
** "BusyHandler typedefs.
*/
#include "vdbe.h"
#include "btree.h"
@@ -262,7 +278,6 @@ typedef struct AuthContext AuthContext;
typedef struct KeyClass KeyClass;
typedef struct CollSeq CollSeq;
typedef struct KeyInfo KeyInfo;
typedef struct BusyHandler BusyHandler;
/*
** Each database file to be accessed by the system is an instance
@@ -279,8 +294,8 @@ struct Db {
Hash idxHash; /* All (named) indices indexed by name */
Hash trigHash; /* All triggers indexed by name */
Hash aFKey; /* Foreign keys indexed by to-table */
u8 inTrans; /* 0: not writable. 1: Transaction. 2: Checkpoint */
u16 flags; /* Flags associated with this database */
u8 inTrans; /* 0: not writable. 1: Transaction. 2: Checkpoint */
u8 safety_level; /* How aggressive at synching data to disk */
int cache_size; /* Number of pages to use in the cache */
void *pAux; /* Auxiliary data. Usually NULL */
@@ -311,20 +326,6 @@ struct Db {
#define SQLITE_UTF16NATIVE (SQLITE_BIGENDIAN?SQLITE_UTF16BE:SQLITE_UTF16LE)
/*
** An instance of the following structure is used to store the busy-handler
** callback for a given sqlite handle.
**
** The sqlite.busyHandler member of the sqlite struct contains the busy
** callback for the database handle. Each pager opened via the sqlite
** handle is passed a pointer to sqlite.busyHandler. The busy-handler
** callback is currently invoked only from within pager.c.
*/
struct BusyHandler {
int (*xFunc)(void *,int); /* The busy callback */
void *pArg; /* First arg to busy callback */
};
/*
** Each database is an instance of the following structure.
**
@@ -357,6 +358,7 @@ struct sqlite {
Db aDbStatic[2]; /* Static space for the 2 default backends */
int flags; /* Miscellanous flags. See below */
u8 file_format; /* What file format version is this database? */
u8 temp_store; /* 1: file 2: memory 0: default */
int nTable; /* Number of tables in the database */
BusyHandler busyHandler; /* Busy callback */
void *pCommitArg; /* Argument to xCommitCallback() */
@@ -1331,7 +1333,7 @@ void sqlite3DeferForeignKey(Parse*, int);
void sqlite3Attach(Parse*, Token*, Token*, Token*);
void sqlite3Detach(Parse*, Token*);
int sqlite3BtreeFactory(const sqlite *db, const char *zFilename,
int mode, int nPg, Btree **ppBtree);
int omitJournal, int nCache, Btree **ppBtree);
int sqlite3FixInit(DbFixer*, Parse*, int, const char*, const Token*);
int sqlite3FixSrcList(DbFixer*, SrcList*);
int sqlite3FixSelect(DbFixer*, Select*);