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#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
static pthread_barrier_t b;
static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
static void
cl (void *arg)
{
pthread_mutex_unlock (&m);
}
static void *
tf (void *arg)
{
if (pthread_mutex_lock (&m) != 0)
{
printf ("%s: mutex_lock failed\n", __func__);
exit (1);
}
int e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf ("%s: barrier_wait failed\n", __func__);
exit (1);
}
pthread_cleanup_push (cl, NULL);
/* We have to loop here because the cancellation might come after
the cond_wait call left the cancelable area and is then waiting
on the mutex. In this case the beginning of the second cond_wait
call will cause the cancellation to happen. */
do
if (pthread_cond_wait (&c, &m) != 0)
{
printf ("%s: cond_wait failed\n", __func__);
exit (1);
}
while (arg == NULL);
pthread_cleanup_pop (0);
if (pthread_mutex_unlock (&m) != 0)
{
printf ("%s: mutex_unlock failed\n", __func__);
exit (1);
}
return NULL;
}
static int
do_test (void)
{
int status = 0;
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("1st create failed");
return 1;
}
int e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("1st barrier_wait failed");
return 1;
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("1st mutex_lock failed");
return 1;
}
if (pthread_cond_signal (&c) != 0)
{
puts ("1st cond_signal failed");
return 1;
}
if (pthread_cancel (th) != 0)
{
puts ("cancel failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("1st mutex_unlock failed");
return 1;
}
void *res;
if (pthread_join (th, &res) != 0)
{
puts ("1st join failed");
return 1;
}
if (res != PTHREAD_CANCELED)
{
puts ("first thread not canceled");
status = 1;
}
printf ("cond = { %d, %x, %lld, %lld, %lld, %p, %u, %u }\n",
c.__data.__lock, c.__data.__futex, c.__data.__total_seq,
c.__data.__wakeup_seq, c.__data.__woken_seq, c.__data.__mutex,
c.__data.__nwaiters, c.__data.__broadcast_seq);
if (pthread_create (&th, NULL, tf, (void *) 1l) != 0)
{
puts ("2nd create failed");
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("2nd barrier_wait failed");
return 1;
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("2nd mutex_lock failed");
return 1;
}
if (pthread_cond_signal (&c) != 0)
{
puts ("2nd cond_signal failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("2nd mutex_unlock failed");
return 1;
}
if (pthread_join (th, &res) != 0)
{
puts ("2nd join failed");
return 1;
}
if (res != NULL)
{
puts ("2nd thread canceled");
status = 1;
}
printf ("cond = { %d, %x, %lld, %lld, %lld, %p, %u, %u }\n",
c.__data.__lock, c.__data.__futex, c.__data.__total_seq,
c.__data.__wakeup_seq, c.__data.__woken_seq, c.__data.__mutex,
c.__data.__nwaiters, c.__data.__broadcast_seq);
return status;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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