Skip to content

Commit

Permalink
Browse files Browse the repository at this point in the history
Test of semaphores.
  • Loading branch information
Ulrich Drepper committed May 26, 2007
1 parent 20a4d72 commit 2af4e3e
Show file tree
Hide file tree
Showing 3 changed files with 178 additions and 0 deletions.
88 changes: 88 additions & 0 deletions nptl/tst-sem10.c
@@ -0,0 +1,88 @@
/* Copyright (C) 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */

#include <errno.h>
#include <pthread.h>
#include <semaphore.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <sys/time.h>


static int
do_test (void)
{
sem_t s;
if (sem_init (&s, 0, 0) == -1)
{
puts ("sem_init failed");
return 1;
}

struct timeval tv;
if (gettimeofday (&tv, NULL) != 0)
{
puts ("gettimeofday failed");
return 1;
}

struct timespec ts;
TIMEVAL_TO_TIMESPEC (&tv, &ts);

/* Set ts to yesterday. */
ts.tv_sec -= 86400;

int type_before;
if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_before) != 0)
{
puts ("first pthread_setcanceltype failed");
return 1;
}

errno = 0;
if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1)
{
puts ("sem_timedwait succeeded");
return 1;
}
if (errno != ETIMEDOUT)
{
printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n",
errno);
return 1;
}

int type_after;
if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_after) != 0)
{
puts ("second pthread_setcanceltype failed");
return 1;
}
if (type_after != PTHREAD_CANCEL_DEFERRED)
{
puts ("sem_timedwait changed cancellation type");
return 1;
}

return 0;
}

#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
76 changes: 76 additions & 0 deletions nptl/tst-sem11.c
@@ -0,0 +1,76 @@
#include <semaphore.h>
#include <stdio.h>
#include <unistd.h>
#include <pthread.h>
#include <internaltypes.h>

#ifndef SEM_WAIT
# define SEM_WAIT(s) sem_wait (s)
#endif

static void *
tf (void *arg)
{
#ifdef PREPARE
PREPARE
#endif
SEM_WAIT (arg);
return NULL;
}

int
main (void)
{
int tries = 5;
pthread_t th;
sem_t s;
again:
if (sem_init (&s, 0, 0) != 0)
{
puts ("sem_init failed");
return 1;
}

struct new_sem *is = (struct new_sem *) &s;

if (is->nwaiters != 0)
{
puts ("nwaiters not initialized");
return 1;
}

if (pthread_create (&th, NULL, tf, &s) != 0)
{
puts ("pthread_create failed");
return 1;
}

sleep (1);

if (pthread_cancel (th) != 0)
{
puts ("pthread_cancel failed");
return 1;
}

void *r;
if (pthread_join (th, &r) != 0)
{
puts ("pthread_join failed");
return 1;
}
if (r != PTHREAD_CANCELED && --tries > 0)
{
/* Maybe we get the scheduling right the next time. */
sem_destroy (&s);
goto again;
}

if (is->nwaiters != 0)
{
puts ("nwaiters not reset");
return 1;
}

return 0;
}
14 changes: 14 additions & 0 deletions nptl/tst-sem12.c
@@ -0,0 +1,14 @@
#include <time.h>
#include <sys/time.h>


#define PREPARE \
struct timespec ts; \
struct timeval tv; \
gettimeofday (&tv, NULL); \
TIMEVAL_TO_TIMESPEC (&tv, &ts); \
ts.tv_sec += 60;

#define SEM_WAIT(s) sem_timedwait (s, &ts)

#include "tst-sem11.c"

0 comments on commit 2af4e3e

Please sign in to comment.