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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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30
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 1.502 2008/09/23 17:39:26 danielk1977 Exp $
** $Id: main.c,v 1.503 2008/10/07 15:25:48 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -245,6 +245,11 @@ int sqlite3_config(int op, ...){
va_start(ap, op);
switch( op ){
/* Mutex configuration options are only available in a threadsafe
** compile.
*/
#if SQLITE_THREADSAFE
case SQLITE_CONFIG_SINGLETHREAD: {
/* Disable all mutexing */
sqlite3GlobalConfig.bCoreMutex = 0;
@@ -264,6 +269,19 @@ int sqlite3_config(int op, ...){
sqlite3GlobalConfig.bFullMutex = 1;
break;
}
case SQLITE_CONFIG_MUTEX: {
/* Specify an alternative mutex implementation */
sqlite3GlobalConfig.mutex = *va_arg(ap, sqlite3_mutex_methods*);
break;
}
case SQLITE_CONFIG_GETMUTEX: {
/* Retrieve the current mutex implementation */
*va_arg(ap, sqlite3_mutex_methods*) = sqlite3GlobalConfig.mutex;
break;
}
#endif
case SQLITE_CONFIG_MALLOC: {
/* Specify an alternative malloc implementation */
sqlite3GlobalConfig.m = *va_arg(ap, sqlite3_mem_methods*);
@@ -275,16 +293,6 @@ int sqlite3_config(int op, ...){
*va_arg(ap, sqlite3_mem_methods*) = sqlite3GlobalConfig.m;
break;
}
case SQLITE_CONFIG_MUTEX: {
/* Specify an alternative mutex implementation */
sqlite3GlobalConfig.mutex = *va_arg(ap, sqlite3_mutex_methods*);
break;
}
case SQLITE_CONFIG_GETMUTEX: {
/* Retrieve the current mutex implementation */
*va_arg(ap, sqlite3_mutex_methods*) = sqlite3GlobalConfig.mutex;
break;
}
case SQLITE_CONFIG_MEMSTATUS: {
/* Enable or disable the malloc status collection */
sqlite3GlobalConfig.bMemstat = va_arg(ap, int);