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Add tests to verify correct behavior when mutex initialization fails. (CVS 5359)

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FossilOrigin-Name: 65875005ac8bc7988d7d7d8e8b999857449568fd
This commit is contained in:
drh
2008-07-08 02:12:37 +00:00
parent fb45d8c563
commit c8d75674d6
8 changed files with 166 additions and 28 deletions
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27
src/test_mutex.c
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@@ -10,7 +10,7 @@
**
*************************************************************************
**
** $Id: test_mutex.c,v 1.5 2008/07/08 00:06:50 drh Exp $
** $Id: test_mutex.c,v 1.6 2008/07/08 02:12:37 drh Exp $
*/
#include "tcl.h"
@@ -65,7 +65,6 @@ static int counterMutexInit(void){
** Uninitialize the mutex subsystem
*/
static int counterMutexEnd(void){
assert( g.isInit );
g.isInit = 0;
return g.m.xMutexEnd();
}
@@ -83,7 +82,7 @@ static sqlite3_mutex *counterMutexAlloc(int eType){
pReal = g.m.xMutexAlloc(eType);
if( !pReal ) return 0;
if( eType==0 || eType==1 ){
if( eType==SQLITE_MUTEX_FAST || eType==SQLITE_MUTEX_RECURSIVE ){
pRet = (sqlite3_mutex *)malloc(sizeof(sqlite3_mutex));
}else{
pRet = &g.aStatic[eType-2];
@@ -100,7 +99,7 @@ static sqlite3_mutex *counterMutexAlloc(int eType){
static void counterMutexFree(sqlite3_mutex *p){
assert( g.isInit );
g.m.xMutexFree(p->pReal);
if( p->eType==0 || p->eType==1 ){
if( p->eType==SQLITE_MUTEX_FAST || p->eType==SQLITE_MUTEX_RECURSIVE ){
free(p);
}
}
@@ -287,6 +286,25 @@ static int test_clear_mutex_counters(
return TCL_OK;
}
/*
** Create and free a mutex. Return the mutex pointer. The pointer
** will be invalid since the mutex has already been freed. The
** return pointer just checks to see if the mutex really was allocated.
*/
static int test_alloc_mutex(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
sqlite3_mutex *p = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
char zBuf[100];
sqlite3_mutex_free(p);
sqlite3_snprintf(sizeof(zBuf), zBuf, "%p", p);
Tcl_AppendResult(interp, zBuf, (char*)0);
return TCL_OK;
}
/*
** sqlite3_config OPTION
*/
@@ -332,6 +350,7 @@ int Sqlitetest_mutex_Init(Tcl_Interp *interp){
{ "sqlite3_initialize", (Tcl_ObjCmdProc*)test_initialize },
{ "sqlite3_config", (Tcl_ObjCmdProc*)test_config },
{ "alloc_dealloc_mutex", (Tcl_ObjCmdProc*)test_alloc_mutex },
{ "install_mutex_counters", (Tcl_ObjCmdProc*)test_install_mutex_counters },
{ "read_mutex_counters", (Tcl_ObjCmdProc*)test_read_mutex_counters },
{ "clear_mutex_counters", (Tcl_ObjCmdProc*)test_clear_mutex_counters },