archive/php-src
1
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2025-08-20 01:14:28 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Update bundled library to version 2.8.2.

Browse source 
Make OnUpdateInt compatible with ZE2.
Fix the makefile fragment for non-gnu makes
This commit is contained in:
Wez Furlong 2003-06-04 22:40:00 +00:00
parent 82a1818fde
commit 80e7f7001d
42 changed files with 11143 additions and 7558 deletions
Download patch file Download diff file Expand all files Collapse all files

462
ext/sqlite/libsqlite/src/main.c
View file

@ -29,6 +29,13 @@ typedef struct {
char **pzErrMsg; /* Error message stored here */
} InitData;
/*
** Fill the InitData structure with an error message that indicates
** that the database is corrupt.
*/
static void corruptSchema(InitData *pData){
sqliteSetString(pData->pzErrMsg, "malformed database schema", 0);
}
/*
** This is the callback routine for the code that initializes the
@ -40,7 +47,8 @@ typedef struct {
** argv[1] = table or index name or meta statement type.
** argv[2] = root page number for table or index. NULL for meta.
** argv[3] = SQL text for a CREATE TABLE or CREATE INDEX statement.
** argv[4] = "1" for temporary files, "0" for main database
** argv[4] = "1" for temporary files, "0" for main database, "2" or more
** for auxiliary database files.
**
*/
static
@ -49,15 +57,19 @@ int sqliteInitCallback(void *pInit, int argc, char **argv, char **azColName){
Parse sParse;
int nErr = 0;
/* TODO: Do some validity checks on all fields. In particular,
** make sure fields do not contain NULLs. Otherwise we might core
** when attempting to initialize from a corrupt database file. */
assert( argc==5 );
if( argv[0]==0 ){
corruptSchema(pData);
return 1;
}
switch( argv[0][0] ){
case 'v':
case 'i':
case 't': { /* CREATE TABLE, CREATE INDEX, or CREATE VIEW statements */
if( argv[2]==0 || argv[4]==0 ){
corruptSchema(pData);
return 1;
}
if( argv[3] && argv[3][0] ){
/* Call the parser to process a CREATE TABLE, INDEX or VIEW.
** But because sParse.initFlag is set to 1, no VDBE code is generated
@ -67,7 +79,8 @@ int sqliteInitCallback(void *pInit, int argc, char **argv, char **azColName){
memset(&sParse, 0, sizeof(sParse));
sParse.db = pData->db;
sParse.initFlag = 1;
sParse.isTemp = argv[4][0] - '0';
sParse.iDb = atoi(argv[4]);
sParse.useDb = -1;
sParse.newTnum = atoi(argv[2]);
sParse.useCallback = 1;
sqliteRunParser(&sParse, argv[3], pData->pzErrMsg);
@ -78,7 +91,12 @@ int sqliteInitCallback(void *pInit, int argc, char **argv, char **azColName){
** been created when we processed the CREATE TABLE. All we have
** to do here is record the root page number for that index.
*/
Index *pIndex = sqliteFindIndex(pData->db, argv[1]);
int iDb;
Index *pIndex;
iDb = atoi(argv[4]);
assert( iDb>=0 && iDb<pData->db->nDb );
pIndex = sqliteFindIndex(pData->db, argv[1], pData->db->aDb[iDb].zName);
if( pIndex==0 || pIndex->tnum!=0 ){
/* This can occur if there exists an index on a TEMP table which
** has the same name as another index on a permanent index. Since
@ -118,7 +136,7 @@ int upgrade_3_callback(void *pInit, int argc, char **argv, char **NotUsed){
Trigger *pTrig;
char *zErr = 0;
pTab = sqliteFindTable(pData->db, argv[0]);
pTab = sqliteFindTable(pData->db, argv[0], 0);
assert( pTab!=0 );
assert( sqliteStrICmp(pTab->zName, argv[0])==0 );
if( pTab ){
@ -141,7 +159,7 @@ int upgrade_3_callback(void *pInit, int argc, char **argv, char **NotUsed){
** cause the structure that pTab points to be deleted. In case that
** happened, we need to refetch pTab.
*/
pTab = sqliteFindTable(pData->db, argv[0]);
pTab = sqliteFindTable(pData->db, argv[0], 0);
if( pTab ){
assert( sqliteStrICmp(pTab->zName, argv[0])==0 );
pTab->pTrigger = pTrig; /* Re-enable triggers */
@ -153,22 +171,19 @@ int upgrade_3_callback(void *pInit, int argc, char **argv, char **NotUsed){
/*
** Attempt to read the database schema and initialize internal
** data structures. Return one of the SQLITE_ error codes to
** data structures for a single database file. The index of the
** database file is given by iDb. iDb==0 is used for the main
** database. iDb==1 should never be used. iDb>=2 is used for
** auxiliary databases. Return one of the SQLITE_ error codes to
** indicate success or failure.
**
** After the database is initialized, the SQLITE_Initialized
** bit is set in the flags field of the sqlite structure. An
** attempt is made to initialize the database as soon as it
** is opened. If that fails (perhaps because another process
** has the sqlite_master table locked) than another attempt
** is made the first time the database is accessed.
*/
int sqliteInit(sqlite *db, char **pzErrMsg){
static int sqliteInitOne(sqlite *db, int iDb, char **pzErrMsg){
int rc;
BtCursor *curMain;
int size;
Table *pTab;
char *azArg[6];
char zDbNum[30];
int meta[SQLITE_N_BTREE_META];
Parse sParse;
InitData initData;
@ -223,103 +238,161 @@ int sqliteInit(sqlite *db, char **pzErrMsg){
"WHERE type='index'";
assert( iDb>=0 && iDb!=1 && iDb<db->nDb );
/* Construct the schema tables: sqlite_master and sqlite_temp_master
*/
azArg[0] = "table";
azArg[1] = MASTER_NAME;
azArg[2] = "2";
azArg[3] = master_schema;
azArg[4] = "0";
sprintf(zDbNum, "%d", iDb);
azArg[4] = zDbNum;
azArg[5] = 0;
initData.db = db;
initData.pzErrMsg = pzErrMsg;
sqliteInitCallback(&initData, 5, azArg, 0);
pTab = sqliteFindTable(db, MASTER_NAME);
pTab = sqliteFindTable(db, MASTER_NAME, "main");
if( pTab ){
pTab->readOnly = 1;
}
azArg[1] = TEMP_MASTER_NAME;
azArg[3] = temp_master_schema;
azArg[4] = "1";
sqliteInitCallback(&initData, 5, azArg, 0);
pTab = sqliteFindTable(db, TEMP_MASTER_NAME);
if( pTab ){
pTab->readOnly = 1;
if( iDb==0 ){
azArg[1] = TEMP_MASTER_NAME;
azArg[3] = temp_master_schema;
azArg[4] = "1";
sqliteInitCallback(&initData, 5, azArg, 0);
pTab = sqliteFindTable(db, TEMP_MASTER_NAME, "temp");
if( pTab ){
pTab->readOnly = 1;
}
}
/* Create a cursor to hold the database open
*/
if( db->pBe==0 ) return SQLITE_OK;
rc = sqliteBtreeCursor(db->pBe, 2, 0, &curMain);
if( db->aDb[iDb].pBt==0 ) return SQLITE_OK;
rc = sqliteBtreeCursor(db->aDb[iDb].pBt, 2, 0, &curMain);
if( rc ){
sqliteSetString(pzErrMsg, sqlite_error_string(rc), 0);
sqliteResetInternalSchema(db);
return rc;
}
/* Get the database meta information
*/
rc = sqliteBtreeGetMeta(db->pBe, meta);
rc = sqliteBtreeGetMeta(db->aDb[iDb].pBt, meta);
if( rc ){
sqliteSetString(pzErrMsg, sqlite_error_string(rc), 0);
sqliteResetInternalSchema(db);
sqliteBtreeCloseCursor(curMain);
return rc;
}
db->schema_cookie = meta[1];
db->next_cookie = db->schema_cookie;
db->file_format = meta[2];
size = meta[3];
if( size==0 ){ size = MAX_PAGES; }
db->cache_size = size;
sqliteBtreeSetCacheSize(db->pBe, size);
db->safety_level = meta[4];
if( db->safety_level==0 ) db->safety_level = 2;
sqliteBtreeSetSafetyLevel(db->pBe, db->safety_level);
db->aDb[iDb].schema_cookie = meta[1];
if( iDb==0 ){
db->next_cookie = meta[1];
db->file_format = meta[2];
size = meta[3];
if( size==0 ){ size = MAX_PAGES; }
db->cache_size = size;
db->safety_level = meta[4];
if( db->safety_level==0 ) db->safety_level = 2;
/*
** file_format==1 Version 2.1.0.
** file_format==2 Version 2.2.0. Add support for INTEGER PRIMARY KEY.
** file_format==3 Version 2.6.0. Fix empty-string index bug.
** file_format==4 Version 2.7.0. Add support for separate numeric and
** text datatypes.
*/
if( db->file_format==0 ){
/* This happens if the database was initially empty */
db->file_format = 4;
}else if( db->file_format>4 ){
sqliteBtreeCloseCursor(curMain);
sqliteSetString(pzErrMsg, "unsupported file format", 0);
return SQLITE_ERROR;
/*
** file_format==1 Version 2.1.0.
** file_format==2 Version 2.2.0. Add support for INTEGER PRIMARY KEY.
** file_format==3 Version 2.6.0. Fix empty-string index bug.
** file_format==4 Version 2.7.0. Add support for separate numeric and
** text datatypes.
*/
if( db->file_format==0 ){
/* This happens if the database was initially empty */
db->file_format = 4;
}else if( db->file_format>4 ){
sqliteBtreeCloseCursor(curMain);
sqliteSetString(pzErrMsg, "unsupported file format", 0);
return SQLITE_ERROR;
}
}else if( db->file_format!=meta[2] || db->file_format<4 ){
assert( db->file_format>=4 );
if( meta[2]==0 ){
sqliteSetString(pzErrMsg, "cannot attach empty database: ",
db->aDb[iDb].zName, 0);
}else{
sqliteSetString(pzErrMsg, "incompatible file format in auxiliary "
"database: ", db->aDb[iDb].zName, 0);
}
sqliteBtreeClose(db->aDb[iDb].pBt);
db->aDb[iDb].pBt = 0;
return SQLITE_FORMAT;
}
sqliteBtreeSetCacheSize(db->aDb[iDb].pBt, size);
sqliteBtreeSetSafetyLevel(db->aDb[iDb].pBt, meta[4]==0 ? 2 : meta[4]);
/* Read the schema information out of the schema tables
*/
memset(&sParse, 0, sizeof(sParse));
sParse.db = db;
sParse.pBe = db->pBe;
sParse.xCallback = sqliteInitCallback;
sParse.pArg = (void*)&initData;
sParse.initFlag = 1;
sParse.useDb = -1;
sParse.useCallback = 1;
sqliteRunParser(&sParse,
db->file_format>=2 ? init_script : older_init_script,
pzErrMsg);
if( iDb==0 ){
sqliteRunParser(&sParse,
db->file_format>=2 ? init_script : older_init_script,
pzErrMsg);
}else{
char *zSql = 0;
sqliteSetString(&zSql,
"SELECT type, name, rootpage, sql, ", zDbNum, " FROM \"",
db->aDb[iDb].zName, "\".sqlite_master", 0);
sqliteRunParser(&sParse, zSql, pzErrMsg);
sqliteFree(zSql);
}
sqliteBtreeCloseCursor(curMain);
if( sqlite_malloc_failed ){
sqliteSetString(pzErrMsg, "out of memory", 0);
sParse.rc = SQLITE_NOMEM;
sqliteBtreeRollback(db->pBe);
sqliteResetInternalSchema(db);
sqliteResetInternalSchema(db, 0);
}
if( sParse.rc==SQLITE_OK ){
DbSetProperty(db, iDb, DB_SchemaLoaded);
if( iDb==0 ){
DbSetProperty(db, 1, DB_SchemaLoaded);
}
}else{
sqliteResetInternalSchema(db, iDb);
}
return sParse.rc;
}
/*
** Initialize all database files - the main database file, the file
** used to store temporary tables, and any additional database files
** created using ATTACH statements. Return a success code. If an
** error occurs, write an error message into *pzErrMsg.
**
** After the database is initialized, the SQLITE_Initialized
** bit is set in the flags field of the sqlite structure. An
** attempt is made to initialize the database as soon as it
** is opened. If that fails (perhaps because another process
** has the sqlite_master table locked) than another attempt
** is made the first time the database is accessed.
*/
int sqliteInit(sqlite *db, char **pzErrMsg){
int i, rc;
assert( (db->flags & SQLITE_Initialized)==0 );
rc = SQLITE_OK;
for(i=0; rc==SQLITE_OK && i<db->nDb; i++){
if( DbHasProperty(db, i, DB_SchemaLoaded) ) continue;
assert( i!=1 ); /* Should have been initialized together with 0 */
rc = sqliteInitOne(db, i, pzErrMsg);
}
if( rc==SQLITE_OK ){
db->flags |= SQLITE_Initialized;
sqliteCommitInternalChanges(db);
}else{
db->flags &= ~SQLITE_Initialized;
sqliteResetInternalSchema(db);
}
sqliteBtreeCloseCursor(curMain);
return sParse.rc;
return rc;
}
/*
@ -349,23 +422,27 @@ const char sqlite_encoding[] = "iso8859";
*/
sqlite *sqlite_open(const char *zFilename, int mode, char **pzErrMsg){
sqlite *db;
int rc;
int rc, i;
/* Allocate the sqlite data structure */
db = sqliteMalloc( sizeof(sqlite) );
if( pzErrMsg ) *pzErrMsg = 0;
if( db==0 ) goto no_mem_on_open;
sqliteHashInit(&db->tblHash, SQLITE_HASH_STRING, 0);
sqliteHashInit(&db->idxHash, SQLITE_HASH_STRING, 0);
sqliteHashInit(&db->trigHash, SQLITE_HASH_STRING, 0);
sqliteHashInit(&db->aFunc, SQLITE_HASH_STRING, 1);
sqliteHashInit(&db->aFKey, SQLITE_HASH_STRING, 1);
db->onError = OE_Default;
db->priorNewRowid = 0;
db->magic = SQLITE_MAGIC_BUSY;
db->nDb = 2;
db->aDb = db->aDbStatic;
sqliteHashInit(&db->aFunc, SQLITE_HASH_STRING, 1);
for(i=0; i<db->nDb; i++){
sqliteHashInit(&db->aDb[i].tblHash, SQLITE_HASH_STRING, 0);
sqliteHashInit(&db->aDb[i].idxHash, SQLITE_HASH_STRING, 0);
sqliteHashInit(&db->aDb[i].trigHash, SQLITE_HASH_STRING, 0);
sqliteHashInit(&db->aDb[i].aFKey, SQLITE_HASH_STRING, 1);
}
/* Open the backend database driver */
rc = sqliteBtreeOpen(zFilename, 0, MAX_PAGES, &db->pBe);
rc = sqliteBtreeFactory(db, zFilename, 0, MAX_PAGES, &db->aDb[0].pBt);
if( rc!=SQLITE_OK ){
switch( rc ){
default: {
@ -376,6 +453,8 @@ sqlite *sqlite_open(const char *zFilename, int mode, char **pzErrMsg){
sqliteStrRealloc(pzErrMsg);
return 0;
}
db->aDb[0].zName = "main";
db->aDb[1].zName = "temp";
/* Attempt to read the schema */
sqliteRegisterBuiltinFunctions(db);
@ -412,9 +491,9 @@ sqlite *sqlite_open(const char *zFilename, int mode, char **pzErrMsg){
&initData,
&zErr);
if( rc==SQLITE_OK ){
sqliteBtreeGetMeta(db->pBe, meta);
sqliteBtreeGetMeta(db->aDb[0].pBt, meta);
meta[2] = 4;
sqliteBtreeUpdateMeta(db->pBe, meta);
sqliteBtreeUpdateMeta(db->aDb[0].pBt, meta);
sqlite_exec(db, "COMMIT", 0, 0, 0);
}
if( rc!=SQLITE_OK ){
@ -457,17 +536,26 @@ int sqlite_changes(sqlite *db){
*/
void sqlite_close(sqlite *db){
HashElem *i;
int j;
db->want_to_close = 1;
if( sqliteSafetyCheck(db) || sqliteSafetyOn(db) ){
/* printf("DID NOT CLOSE\n"); fflush(stdout); */
return;
}
db->magic = SQLITE_MAGIC_CLOSED;
sqliteBtreeClose(db->pBe);
sqliteResetInternalSchema(db);
if( db->pBeTemp ){
sqliteBtreeClose(db->pBeTemp);
for(j=0; j<db->nDb; j++){
if( db->aDb[j].pBt ){
sqliteBtreeClose(db->aDb[j].pBt);
db->aDb[j].pBt = 0;
}
if( j>=2 ){
sqliteFree(db->aDb[j].zName);
db->aDb[j].zName = 0;
}
}
sqliteResetInternalSchema(db, 0);
assert( db->nDb<=2 );
assert( db->aDb==db->aDbStatic );
for(i=sqliteHashFirst(&db->aFunc); i; i=sqliteHashNext(i)){
FuncDef *pFunc, *pNext;
for(pFunc = (FuncDef*)sqliteHashData(i); pFunc; pFunc=pNext){
@ -476,120 +564,21 @@ void sqlite_close(sqlite *db){
}
}
sqliteHashClear(&db->aFunc);
sqliteHashClear(&db->aFKey);
sqliteFree(db);
}
/*
** Return TRUE if the given SQL string ends in a semicolon.
**
** Special handling is require for CREATE TRIGGER statements.
** Whenever the CREATE TRIGGER keywords are seen, the statement
** must end with ";END;".
** Rollback all database files.
*/
int sqlite_complete(const char *zSql){
int isComplete = 1;
int requireEnd = 0;
int seenText = 0;
int seenCreate = 0;
while( *zSql ){
switch( *zSql ){
case ';': {
isComplete = 1;
seenText = 1;
seenCreate = 0;
break;
}
case ' ':
case '\t':
case '\n':
case '\f': {
break;
}
case '[': {
isComplete = 0;
seenText = 1;
seenCreate = 0;
zSql++;
while( *zSql && *zSql!=']' ){ zSql++; }
if( *zSql==0 ) return 0;
break;
}
case '"':
case '\'': {
int c = *zSql;
isComplete = 0;
seenText = 1;
seenCreate = 0;
zSql++;
while( *zSql && *zSql!=c ){ zSql++; }
if( *zSql==0 ) return 0;
break;
}
case '-': {
if( zSql[1]!='-' ){
isComplete = 0;
seenCreate = 0;
break;
}
while( *zSql && *zSql!='\n' ){ zSql++; }
if( *zSql==0 ) return seenText && isComplete && requireEnd==0;
break;
}
case 'c':
case 'C': {
seenText = 1;
if( !isComplete ) break;
isComplete = 0;
if( sqliteStrNICmp(zSql, "create", 6)!=0 ) break;
if( !isspace(zSql[6]) ) break;
zSql += 5;
seenCreate = 1;
while( isspace(zSql[1]) ) zSql++;
if( sqliteStrNICmp(&zSql[1],"trigger", 7)!=0 ) break;
zSql += 7;
requireEnd++;
break;
}
case 't':
case 'T': {
seenText = 1;
if( !seenCreate ) break;
seenCreate = 0;
isComplete = 0;
if( sqliteStrNICmp(zSql, "trigger", 7)!=0 ) break;
if( !isspace(zSql[7]) ) break;
zSql += 6;
requireEnd++;
break;
}
case 'e':
case 'E': {
seenCreate = 0;
seenText = 1;
if( !isComplete ) break;
isComplete = 0;
if( requireEnd==0 ) break;
if( sqliteStrNICmp(zSql, "end", 3)!=0 ) break;
zSql += 2;
while( isspace(zSql[1]) ) zSql++;
if( zSql[1]==';' ){
zSql++;
isComplete = 1;
requireEnd--;
}
break;
}
default: {
seenCreate = 0;
seenText = 1;
isComplete = 0;
break;
}
void sqliteRollbackAll(sqlite *db){
int i;
for(i=0; i<db->nDb; i++){
if( db->aDb[i].pBt ){
sqliteBtreeRollback(db->aDb[i].pBt);
db->aDb[i].inTrans = 0;
}
zSql++;
}
return seenText && isComplete && requireEnd==0;
sqliteRollbackInternalChanges(db);
}
/*
@ -632,21 +621,18 @@ static int sqliteMain(
if( db->pVdbe==0 ){ db->nChange = 0; }
memset(&sParse, 0, sizeof(sParse));
sParse.db = db;
sParse.pBe = db->pBe;
sParse.xCallback = xCallback;
sParse.pArg = pArg;
sParse.useDb = -1;
sParse.useCallback = ppVm==0;
#ifndef SQLITE_OMIT_TRACE
if( db->xTrace ) db->xTrace(db->pTraceArg, zSql);
#endif
sqliteRunParser(&sParse, zSql, pzErrMsg);
if( sqlite_malloc_failed ){
sqliteSetString(pzErrMsg, "out of memory", 0);
sParse.rc = SQLITE_NOMEM;
sqliteBtreeRollback(db->pBe);
if( db->pBeTemp ) sqliteBtreeRollback(db->pBeTemp);
sqliteRollbackAll(db);
sqliteResetInternalSchema(db, 0);
db->flags &= ~SQLITE_InTrans;
sqliteResetInternalSchema(db);
}
if( sParse.rc==SQLITE_DONE ) sParse.rc = SQLITE_OK;
if( sParse.rc!=SQLITE_OK && pzErrMsg && *pzErrMsg==0 ){
@ -654,7 +640,7 @@ static int sqliteMain(
}
sqliteStrRealloc(pzErrMsg);
if( sParse.rc==SQLITE_SCHEMA ){
sqliteResetInternalSchema(db);
sqliteResetInternalSchema(db, 0);
}
if( sParse.useCallback==0 ){
assert( ppVm );
@ -937,53 +923,69 @@ int sqlite_function_type(sqlite *db, const char *zName, int dataType){
** sqlite_exec().
*/
void *sqlite_trace(sqlite *db, void (*xTrace)(void*,const char*), void *pArg){
#ifndef SQLITE_OMIT_TRACE
void *pOld = db->pTraceArg;
db->xTrace = xTrace;
db->pTraceArg = pArg;
return pOld;
#else
return 0;
#endif
}
/*
** Attempt to open the file named in the argument as the auxiliary database
** file. The auxiliary database file is used to store TEMP tables. But
** by using this API, it is possible to trick SQLite into opening two
** separate databases and acting on them as if they were one.
** This routine is called to create a connection to a database BTree
** driver. If zFilename is the name of a file, then that file is
** opened and used. If zFilename is the magic name ":memory:" then
** the database is stored in memory (and is thus forgotten as soon as
** the connection is closed.) If zFilename is NULL then the database
** is for temporary use only and is deleted as soon as the connection
** is closed.
**
** This routine closes the existing auxiliary database file, which will
** cause any previously created TEMP tables to be dropped.
** A temporary database can be either a disk file (that is automatically
** deleted when the file is closed) or a set of red-black trees held in memory,
** depending on the values of the TEMP_STORE compile-time macro and the
** db->temp_store variable, according to the following chart:
**
** The zName parameter can be a NULL pointer or an empty string to cause
** a temporary file to be opened and automatically deleted when closed.
** TEMP_STORE db->temp_store Location of temporary database
** ---------- -------------- ------------------------------
** 0 any file
** 1 1 file
** 1 2 memory
** 1 0 file
** 2 1 file
** 2 2 memory
** 2 0 memory
** 3 any memory
*/
int sqlite_open_aux_file(sqlite *db, const char *zName, char **pzErrMsg){
int rc;
if( zName && zName[0]==0 ) zName = 0;
if( sqliteSafetyOn(db) ) goto openaux_misuse;
sqliteResetInternalSchema(db);
if( db->pBeTemp!=0 ){
sqliteBtreeClose(db->pBeTemp);
}
rc = sqliteBtreeOpen(zName, 0, MAX_PAGES, &db->pBeTemp);
if( rc ){
if( zName==0 ) zName = "a temporary file";
sqliteSetString(pzErrMsg, "unable to open ", zName,
": ", sqlite_error_string(rc), 0);
sqliteStrRealloc(pzErrMsg);
sqliteSafetyOff(db);
return rc;
}
rc = sqliteInit(db, pzErrMsg);
if( sqliteSafetyOff(db) ) goto openaux_misuse;
sqliteStrRealloc(pzErrMsg);
return rc;
int sqliteBtreeFactory(
const sqlite *db, /* Main database when opening aux otherwise 0 */
const char *zFilename, /* Name of the file containing the BTree database */
int omitJournal, /* if TRUE then do not journal this file */
int nCache, /* How many pages in the page cache */
Btree **ppBtree){ /* Pointer to new Btree object written here */
openaux_misuse:
sqliteSetString(pzErrMsg, sqlite_error_string(SQLITE_MISUSE), 0);
sqliteStrRealloc(pzErrMsg);
return SQLITE_MISUSE;
assert( ppBtree != 0);
#ifndef SQLITE_OMIT_INMEMORYDB
if( zFilename==0 ){
if (TEMP_STORE == 0) {
/* Always use file based temporary DB */
return sqliteBtreeOpen(0, omitJournal, nCache, ppBtree);
} else if (TEMP_STORE == 1 || TEMP_STORE == 2) {
/* Switch depending on compile-time and/or runtime settings. */
int location = db->temp_store==0 ? TEMP_STORE : db->temp_store;
if (location == 1) {
return sqliteBtreeOpen(zFilename, omitJournal, nCache, ppBtree);
} else {
return sqliteRbtreeOpen(0, 0, 0, ppBtree);
}
} else {
/* Always use in-core DB */
return sqliteRbtreeOpen(0, 0, 0, ppBtree);
}
}else if( zFilename[0]==':' && strcmp(zFilename,":memory:")==0 ){
return sqliteRbtreeOpen(0, 0, 0, ppBtree);
}else
#endif
{
return sqliteBtreeOpen(zFilename, omitJournal, nCache, ppBtree);
}
}