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Diffstat (limited to 'nptl/tst-cond15.c')
| -rw-r--r-- | nptl/tst-cond15.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/nptl/tst-cond15.c b/nptl/tst-cond15.c new file mode 100644 index 0000000000..e815e253b8 --- /dev/null +++ b/nptl/tst-cond15.c @@ -0,0 +1,160 @@ +/* Copyright (C) 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/time.h> + + +static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; +static pthread_mutex_t mut = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; +static pthread_mutex_t mut2 = PTHREAD_MUTEX_INITIALIZER; + +static void * +tf (void *p) +{ + if (pthread_mutex_lock (&mut) != 0) + { + printf ("%s: 1st mutex_lock failed\n", __func__); + exit (1); + } + if (pthread_mutex_lock (&mut) != 0) + { + printf ("%s: 2nd mutex_lock failed\n", __func__); + exit (1); + } + if (pthread_mutex_lock (&mut) != 0) + { + printf ("%s: 3rd mutex_lock failed\n", __func__); + exit (1); + } + + if (pthread_mutex_unlock (&mut2) != 0) + { + printf ("%s: mutex_unlock failed\n", __func__); + exit (1); + } + + struct timeval tv; + gettimeofday (&tv, NULL); + struct timespec ts; + TIMEVAL_TO_TIMESPEC (&tv, &ts); + ts.tv_sec += p == NULL ? 100 : 1; + + int err = pthread_cond_timedwait (&cond, &mut, &ts); + if ((err != 0 && p == NULL) || (err != ETIMEDOUT && p != NULL)) + { + printf ("%s: cond_wait failed\n", __func__); + exit (1); + } + + if (pthread_mutex_unlock (&mut) != 0) + { + printf ("%s: 1st mutex_unlock failed\n", __func__); + exit (1); + } + if (pthread_mutex_unlock (&mut) != 0) + { + printf ("%s: 2nd mutex_unlock failed\n", __func__); + exit (1); + } + if (pthread_mutex_unlock (&mut) != 0) + { + printf ("%s: 3rd mutex_unlock failed\n", __func__); + exit (1); + } + + puts ("child: done"); + + return NULL; +} + + +static int +do_test (void) +{ + if (pthread_mutex_lock (&mut2) != 0) + { + puts ("1st mutex_lock failed"); + return 1; + } + + puts ("parent: create 1st child"); + + pthread_t th; + int err = pthread_create (&th, NULL, tf, NULL); + if (err != 0) + { + printf ("parent: cannot 1st create thread: %s\n", strerror (err)); + return 1; + } + + /* We have to synchronize with the child. */ + if (pthread_mutex_lock (&mut2) != 0) + { + puts ("2nd mutex_lock failed"); + return 1; + } + + /* Give the child to reach to pthread_cond_wait. */ + sleep (1); + + if (pthread_cond_signal (&cond) != 0) + { + puts ("cond_signal failed"); + return 1; + } + + err = pthread_join (th, NULL); + if (err != 0) + { + printf ("parent: failed to join: %s\n", strerror (err)); + return 1; + } + + + puts ("parent: create 2nd child"); + + err = pthread_create (&th, NULL, tf, (void *) 1l); + if (err != 0) + { + printf ("parent: cannot 2nd create thread: %s\n", strerror (err)); + return 1; + } + + err = pthread_join (th, NULL); + if (err != 0) + { + printf ("parent: failed to join: %s\n", strerror (err)); + return 1; + } + + puts ("done"); + + return 0; +} + + +#define TEST_FUNCTION do_test () +#define TIMEOUT 6 +#include "../test-skeleton.c" |