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/* Compiler options:
#notarget: cris*-*-elf
#cc: additional_flags=-pthread
#output: abbb ok\n
Testing a signal handler corner case. */
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <pthread.h>
static void *
process (void *arg)
{
write (2, "a", 1);
write (2, "b", 1);
write (2, "b", 1);
write (2, "b", 1);
return NULL;
}
int ok = 0;
volatile int done = 0;
void
sigusr1 (int signum)
{
if (signum != SIGUSR1 || !ok)
abort ();
done = 1;
}
int
main (void)
{
int retcode;
pthread_t th_a;
void *retval;
sigset_t sigs;
if (sigemptyset (&sigs) != 0)
abort ();
retcode = pthread_create (&th_a, NULL, process, NULL);
if (retcode != 0)
abort ();
if (signal (SIGUSR1, sigusr1) != SIG_DFL)
abort ();
if (pthread_sigmask (SIG_BLOCK, NULL, &sigs) != 0
|| sigaddset (&sigs, SIGUSR1) != 0
|| pthread_sigmask (SIG_BLOCK, &sigs, NULL) != 0)
abort ();
if (pthread_kill (pthread_self (), SIGUSR1) != 0
|| sched_yield () != 0
|| sched_yield () != 0
|| sched_yield () != 0)
abort ();
ok = 1;
if (pthread_sigmask (SIG_UNBLOCK, NULL, &sigs) != 0
|| sigaddset (&sigs, SIGUSR1) != 0
|| pthread_sigmask (SIG_UNBLOCK, &sigs, NULL) != 0)
abort ();
if (!done)
abort ();
retcode = pthread_join (th_a, &retval);
if (retcode != 0)
abort ();
fprintf (stderr, " ok\n");
return 0;
}
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