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Fix a race condition in sqlite3_initialize(). (CVS 5310)

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FossilOrigin-Name: 70b2ed2afcf1757d1c58f3a83dad4a5fb226ae63
This commit is contained in:
danielk1977
2008-06-26 08:29:34 +00:00
parent 4766b29d95
commit 71bc31c68d
7 changed files with 76 additions and 50 deletions
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10
src/os.c
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@@ -13,7 +13,7 @@
** This file contains OS interface code that is common to all
** architectures.
**
** $Id: os.c,v 1.116 2008/06/25 17:19:01 danielk1977 Exp $
** $Id: os.c,v 1.117 2008/06/26 08:29:34 danielk1977 Exp $
*/
#define _SQLITE_OS_C_ 1
#include "sqliteInt.h"
@@ -243,18 +243,12 @@ static void vfsUnlink(sqlite3_vfs *pVfs){
** true.
*/
int sqlite3_vfs_register(sqlite3_vfs *pVfs, int makeDflt){
#ifndef SQLITE_MUTEX_NOOP
sqlite3_mutex *mutex = 0;
#endif
#ifndef SQLITE_OMIT_AUTOINIT
int rc = sqlite3_initialize();
if( rc ) return rc;
#endif
#ifndef SQLITE_MUTEX_NOOP
if( sqlite3Config.isInit!=1 ){
mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
}
#endif
mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
sqlite3_mutex_enter(mutex);
vfsUnlink(pVfs);
if( makeDflt || vfsList==0 ){