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dmeventd: debug signals

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This commit is contained in:
Zdenek Kabelac 2015-10-22 11:15:53 +02:00
parent aeec62ad19
commit 4284ba65eb
1 changed files with 20 additions and 0 deletions
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20
daemons/dmeventd/dmeventd.c
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@ -789,6 +789,23 @@ static void _unregister_for_timeout(struct thread_status *thread)
pthread_mutex_unlock(&_timeout_mutex);
}
#ifdef DEBUG_SIGNALS
/* Print list of signals within a signal set */
static void _print_sigset(const char *prefix, const sigset_t *sigset)
{
int sig, cnt = 0;
for (sig = 1; sig < NSIG; sig++)
if (!sigismember(sigset, sig)) {
cnt++;
log_debug("%s%d (%s)", prefix, sig, strsignal(sig));
}
if (!cnt)
log_debug("%s<empty signal set>", prefix);
}
#endif
static sigset_t _unblock_sigalrm(void)
{
sigset_t set, old;
@ -844,6 +861,9 @@ static int _event_wait(struct thread_status *thread)
pthread_sigmask(SIG_SETMASK, &set, NULL);
#ifdef DEBUG_SIGNALS
_print_sigset("dmeventd blocking ", &set);
#endif
DEBUGLOG("Completed waitevent task for %s.", thread->device.name);
return ret;