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/* Copyright (C) 2004-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
static pthread_barrier_t b;
static pthread_rwlock_t r = PTHREAD_RWLOCK_INITIALIZER;
static void *
tf (void *arg)
{
/* Lock the read-write lock. */
if (pthread_rwlock_wrlock (&r) != 0)
{
puts ("tf: cannot lock rwlock");
exit (EXIT_FAILURE);
}
pthread_t mt = *(pthread_t *) arg;
pthread_barrier_wait (&b);
/* This call will never return. */
pthread_join (mt, NULL);
return NULL;
}
static int
do_test (void)
{
int result = 0;
struct timespec ts;
if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
{
puts ("clock_gettime failed");
return 1;
}
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
pthread_t me = pthread_self ();
pthread_t th;
if (pthread_create (&th, NULL, tf, &me) != 0)
{
puts ("create failed");
return 1;
}
/* Wait until the rwlock is locked. */
pthread_barrier_wait (&b);
ts.tv_nsec = -1;
int e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("first rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("first rwlock_timedrdlock did not return EINVAL");
result = 1;
}
e = pthread_rwlock_timedwrlock (&r, &ts);
if (e == 0)
{
puts ("first rwlock_timedwrlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("first rwlock_timedwrlock did not return EINVAL");
result = 1;
}
ts.tv_nsec = 1000000000;
e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("second rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("second rwlock_timedrdlock did not return EINVAL");
result = 1;
}
e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("second rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("second rwlock_timedrdlock did not return EINVAL");
result = 1;
}
ts.tv_nsec = (__typeof (ts.tv_nsec)) 0x100001000LL;
if ((__typeof (ts.tv_nsec)) 0x100001000LL != 0x100001000LL)
ts.tv_nsec = 2000000000;
e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("third rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("third rwlock_timedrdlock did not return EINVAL");
result = 1;
}
e = pthread_rwlock_timedrdlock (&r, &ts);
if (e == 0)
{
puts ("third rwlock_timedrdlock did not fail");
result = 1;
}
else if (e != EINVAL)
{
puts ("third rwlock_timedrdlock did not return EINVAL");
result = 1;
}
if (result == 0)
puts ("no bugs");
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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