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And of course setitimer() doesn't allow us to override the struct sigvalue, so we can't chain out to outer SIGALRM calls. Hooray for global state!

This commit is contained in:
Pietro Gagliardi 2019-05-04 14:31:33 -04:00
parent 5836a2a236
commit bfd608cf8e
1 changed files with 1 additions and 17 deletions
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16
test/timer_darwinunix.c
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@ -97,23 +97,7 @@ static struct timeoutParams p;
static void onTimeout(int sig, siginfo_t *info, void *ctx)
{
if (info->si_value.sival_ptr == &p)
longjmp(p.retpos, 1);
// otherwise, call the overloaded SIGALRM handler
if ((p.prevSig.sa_flags & SA_SIGINFO) != 0) {
(*(p.prevSig.sa_sigaction))(sig, info, ctx);
return;
}
if (p.prevSig.sa_handler == SIG_IGN)
return;
if (p.prevSig.sa_handler == SIG_DFL) {
// SIG_DFL for SIGALRM is to terminate the program
// because POSIX doesn't specify how to convert from signal number to exit code, we will have to do this instead
// (POSIX does say these should be safe to call unless the signal was explicitly raised, which we aren't doing, and timer_create() isn't documented as doing that either...)
signal(sig, SIG_DFL);
raise(sig);
}
(*(p.prevSig.sa_handler))(sig);
}
// POSIX doesn't have atomic operations :|