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Move the implementation of sqlite3_enable_shared_cache from btree.c to main.c. (CVS 2902)

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FossilOrigin-Name: 4f2ec95283f1ae0a28b2f9ce0afc5a7203de87fb
This commit is contained in:
drh
2006-01-10 13:58:48 +00:00
parent eecfb3eebc
commit 7c1817e255
4 changed files with 38 additions and 33 deletions
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29
src/main.c
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@@ -14,7 +14,7 @@
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.321 2006/01/10 07:14:24 danielk1977 Exp $
** $Id: main.c,v 1.322 2006/01/10 13:58:48 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
@@ -1053,3 +1053,30 @@ int sqlite3Corrupt(void){
return SQLITE_CORRUPT;
}
#endif
#ifndef SQLITE_OMIT_SHARED_CACHE
/*
** Enable or disable the shared pager and schema features for the
** current thread.
**
** This routine should only be called when there are no open
** database connections.
*/
int sqlite3_enable_shared_cache(int enable){
ThreadData *pTd = sqlite3ThreadData();
/* It is only legal to call sqlite3_enable_shared_cache() when there
** are no currently open b-trees that were opened by the calling thread.
** This condition is only easy to detect if the shared-cache were
** previously enabled (and is being disabled).
*/
if( pTd->pBtree && !enable ){
assert( pTd->useSharedData );
return SQLITE_MISUSE;
}
pTd->useSharedData = enable;
return SQLITE_OK;
}
#endif