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In the OOM testing logic, add the sqlite3FirstFault() routine as a place to

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set a breakpoint the first time any simulated OOM fault occurs for a single
test case.

FossilOrigin-Name: b4d80bd287ca7f3a6d182ba2435273266035b94fdf6a44047a64a4eff931c571
This commit is contained in:
drh
2018-05-24 17:38:00 +00:00
parent bbd574bc37
commit b9cd2c4536
3 changed files with 25 additions and 7 deletions
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18
src/test_malloc.c
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@@ -32,6 +32,8 @@ static struct MemFault {
int nRepeat; /* Number of times to repeat the failure */
int nBenign; /* Number of benign failures seen since last config */
int nFail; /* Number of failures seen since last config */
int nOkBefore; /* Successful allocations prior to the first fault */
int nOkAfter; /* Successful allocations after a fault */
u8 enable; /* True if enabled */
int isInstalled; /* True if the fault simulation layer is installed */
int isBenignMode; /* True if malloc failures are considered benign */
@@ -47,18 +49,32 @@ static void sqlite3Fault(void){
cnt++;
}
/*
** This routine exists as a place to set a breakpoint that will
** fire the first time any malloc() fails on a single test case.
** The sqlite3Fault() routine above runs on every malloc() failure.
** This routine only runs on the first such failure.
*/
static void sqlite3FirstFault(void){
static int cnt2 = 0;
cnt2++;
}
/*
** Check to see if a fault should be simulated. Return true to simulate
** the fault. Return false if the fault should not be simulated.
*/
static int faultsimStep(void){
if( likely(!memfault.enable) ){
memfault.nOkAfter++;
return 0;
}
if( memfault.iCountdown>0 ){
memfault.iCountdown--;
memfault.nOkBefore++;
return 0;
}
if( memfault.nFail==0 ) sqlite3FirstFault();
sqlite3Fault();
memfault.nFail++;
if( memfault.isBenignMode>0 ){
@@ -133,6 +149,8 @@ static void faultsimConfig(int nDelay, int nRepeat){
memfault.nRepeat = nRepeat;
memfault.nBenign = 0;
memfault.nFail = 0;
memfault.nOkBefore = 0;
memfault.nOkAfter = 0;
memfault.enable = nDelay>=0;
/* Sometimes, when running multi-threaded tests, the isBenignMode