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Remove the SQLITE_MUTEX_APPDEF compile-time option. The SQLITE_THREADSAFE=0

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option always removes all mutex code.  For application-defined mutexes only,
use SQLITE_THREADSAFE=1 with SQLITE_MUTEX_NOOP=1.  Ticket #3421. (CVS 5779)

FossilOrigin-Name: 02a12eb1cfe9307c66556105a1a99d657cc01ab5
This commit is contained in:
drh
2008-10-07 15:25:48 +00:00
parent 3d9cf5177f
commit 18472fa7b8
24 changed files with 322 additions and 242 deletions
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8
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 1.123 2008/09/23 16:41:30 danielk1977 Exp $
** $Id: os.c,v 1.124 2008/10/07 15:25:48 drh Exp $
*/
#define _SQLITE_OS_C_ 1
#include "sqliteInt.h"
@@ -199,14 +199,14 @@ static sqlite3_vfs * SQLITE_WSD vfsList = 0;
*/
sqlite3_vfs *sqlite3_vfs_find(const char *zVfs){
sqlite3_vfs *pVfs = 0;
#ifndef SQLITE_MUTEX_NOOP
#if SQLITE_THREADSAFE
sqlite3_mutex *mutex;
#endif
#ifndef SQLITE_OMIT_AUTOINIT
int rc = sqlite3_initialize();
if( rc ) return 0;
#endif
#ifndef SQLITE_MUTEX_NOOP
#if SQLITE_THREADSAFE
mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
#endif
sqlite3_mutex_enter(mutex);
@@ -268,7 +268,7 @@ int sqlite3_vfs_register(sqlite3_vfs *pVfs, int makeDflt){
** Unregister a VFS so that it is no longer accessible.
*/
int sqlite3_vfs_unregister(sqlite3_vfs *pVfs){
#ifndef SQLITE_MUTEX_NOOP
#if SQLITE_THREADSAFE
sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
#endif
sqlite3_mutex_enter(mutex);