Commit aa96122d authored by antirez's avatar antirez
Browse files

Mask SIGALRM everything but in the main thread.

This is required to ensure that the signal will be delivered to the main
thread when the watchdog timer expires.
parent a354da9a
......@@ -108,9 +108,18 @@ void bioCreateBackgroundJob(int type, void *arg1, void *arg2, void *arg3) {
void *bioProcessBackgroundJobs(void *arg) {
struct bio_job *job;
unsigned long type = (unsigned long) arg;
sigset_t sigset;
pthread_detach(pthread_self());
pthread_mutex_lock(&bio_mutex[type]);
/* Block SIGALRM so we are sure that only the main thread will
* receive the watchdog signal. */
sigemptyset(&sigset);
sigaddset(&sigset, SIGALRM);
if (pthread_sigmask(SIG_BLOCK, &sigset, NULL))
redisLog(REDIS_WARNING,
"Warning: can't mask SIGALRM in bio.c thread: %s", strerror(errno));
while(1) {
listNode *ln;
......
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