diff options
Diffstat (limited to 'test/nptl/tst-cond3.c')
| -rw-r--r-- | test/nptl/tst-cond3.c | 113 | 
1 files changed, 113 insertions, 0 deletions
| diff --git a/test/nptl/tst-cond3.c b/test/nptl/tst-cond3.c new file mode 100644 index 000000000..cb9eb8558 --- /dev/null +++ b/test/nptl/tst-cond3.c @@ -0,0 +1,113 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. +   This file is part of the GNU C Library. +   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + +   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 <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + + +/* Note that this test requires more than the standard.  It is +   required that there are no spurious wakeups if only more readers +   are added.  This is a reasonable demand.  */ + + +static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; +static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; + + +#define N 10 + + +static void * +tf (void *arg) +{ +  int i = (long int) arg; +  int err; + +  /* Get the mutex.  */ +  err = pthread_mutex_lock (&mut); +  if (err != 0) +    { +      printf ("child %d mutex_lock failed: %s\n", i, strerror (err)); +      exit (1); +    } + +  /* This call should never return.  */ +  pthread_cond_wait (&cond, &mut); + +  /* We should never get here.  */ +  exit (1); + +  return NULL; +} + + +static int +do_test (void) +{ +  int err; +  int i; + +  for (i = 0; i < N; ++i) +    { +      pthread_t th; + +      if (i != 0) +	{ +	  /* Release the mutex.  */ +	  err = pthread_mutex_unlock (&mut); +	  if (err != 0) +	    { +	      printf ("mutex_unlock %d failed: %s\n", i, strerror (err)); +	      return 1; +	    } +	} + +      err = pthread_create (&th, NULL, tf, (void *) (long int) i); +      if (err != 0) +	{ +	  printf ("create %d failed: %s\n", i, strerror (err)); +	  return 1; +	} + +      /* Get the mutex.  */ +      err = pthread_mutex_lock (&mut); +      if (err != 0) +	{ +	  printf ("mutex_lock %d failed: %s\n", i, strerror (err)); +	  return 1; +	} +    } + +  /* Set an alarm for 1 second.  The wrapper will expect this.  */ +  alarm (1); + +  /* This call should never return.  */ +  pthread_cond_wait (&cond, &mut); + +  puts ("cond_wait returned"); +  return 1; +} + + +#define EXPECTED_SIGNAL SIGALRM +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" | 
