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Diffstat (limited to 'nptl/tst-cond8.c')
| -rw-r--r-- | nptl/tst-cond8.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/nptl/tst-cond8.c b/nptl/tst-cond8.c new file mode 100644 index 0000000000..48451e7813 --- /dev/null +++ b/nptl/tst-cond8.c @@ -0,0 +1,275 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. + + 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 <time.h> +#include <sys/time.h> + + +static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; +static pthread_mutex_t mut = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP; + +static pthread_barrier_t bar; + + +static void +ch (void *arg) +{ + int e = pthread_mutex_lock (&mut); + if (e == 0) + { + puts ("mutex not locked at all by cond_wait"); + exit (1); + } + + if (e != EDEADLK) + { + puts ("no deadlock error signaled"); + exit (1); + } + + if (pthread_mutex_unlock (&mut) != 0) + { + puts ("ch: cannot unlock mutex"); + exit (1); + } +} + + +static void * +tf1 (void *p) +{ + int err; + + if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0 + || pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0) + { + puts ("cannot set cancellation options"); + exit (1); + } + + err = pthread_mutex_lock (&mut); + if (err != 0) + { + puts ("child: cannot get mutex"); + exit (1); + } + + err = pthread_barrier_wait (&bar); + if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD) + { + printf ("barrier_wait returned %d\n", err); + exit (1); + } + + puts ("child: got mutex; waiting"); + + pthread_cleanup_push (ch, NULL); + + pthread_cond_wait (&cond, &mut); + + pthread_cleanup_pop (0); + + puts ("child: cond_wait should not have returned"); + + return NULL; +} + + +static void * +tf2 (void *p) +{ + int err; + + if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0 + || pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0) + { + puts ("cannot set cancellation options"); + exit (1); + } + + err = pthread_mutex_lock (&mut); + if (err != 0) + { + puts ("child: cannot get mutex"); + exit (1); + } + + err = pthread_barrier_wait (&bar); + if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD) + { + printf ("barrier_wait returned %d\n", err); + exit (1); + } + + puts ("child: got mutex; waiting"); + + pthread_cleanup_push (ch, NULL); + + /* Current time. */ + struct timeval tv; + (void) gettimeofday (&tv, NULL); + /* +1000 seconds in correct format. */ + struct timespec ts; + TIMEVAL_TO_TIMESPEC (&tv, &ts); + ts.tv_sec += 1000; + + pthread_cond_timedwait (&cond, &mut, &ts); + + pthread_cleanup_pop (0); + + puts ("child: cond_wait should not have returned"); + + return NULL; +} + + +static int +do_test (void) +{ + pthread_t th; + int err; + + printf ("&cond = %p\n&mut = %p\n", &cond, &mut); + + puts ("parent: get mutex"); + + err = pthread_barrier_init (&bar, NULL, 2); + if (err != 0) + { + puts ("parent: cannot init barrier"); + exit (1); + } + + puts ("parent: create child"); + + err = pthread_create (&th, NULL, tf1, NULL); + if (err != 0) + { + puts ("parent: cannot create thread"); + exit (1); + } + + puts ("parent: wait for child to lock mutex"); + + err = pthread_barrier_wait (&bar); + if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("parent: cannot wait for barrier"); + exit (1); + } + + err = pthread_mutex_lock (&mut); + if (err != 0) + { + puts ("parent: mutex_lock failed"); + exit (1); + } + + err = pthread_mutex_unlock (&mut); + if (err != 0) + { + puts ("parent: mutex_unlock failed"); + exit (1); + } + + if (pthread_cancel (th) != 0) + { + puts ("cannot cancel thread"); + exit (1); + } + + void *r; + err = pthread_join (th, &r); + if (err != 0) + { + puts ("parent: failed to join"); + exit (1); + } + + if (r != PTHREAD_CANCELED) + { + puts ("child hasn't been canceled"); + exit (1); + } + + + + puts ("parent: create 2nd child"); + + err = pthread_create (&th, NULL, tf2, NULL); + if (err != 0) + { + puts ("parent: cannot create thread"); + exit (1); + } + + puts ("parent: wait for child to lock mutex"); + + err = pthread_barrier_wait (&bar); + if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("parent: cannot wait for barrier"); + exit (1); + } + + err = pthread_mutex_lock (&mut); + if (err != 0) + { + puts ("parent: mutex_lock failed"); + exit (1); + } + + err = pthread_mutex_unlock (&mut); + if (err != 0) + { + puts ("parent: mutex_unlock failed"); + exit (1); + } + + if (pthread_cancel (th) != 0) + { + puts ("cannot cancel thread"); + exit (1); + } + + err = pthread_join (th, &r); + if (err != 0) + { + puts ("parent: failed to join"); + exit (1); + } + + if (r != PTHREAD_CANCELED) + { + puts ("child hasn't been canceled"); + exit (1); + } + + puts ("done"); + + return 0; +} + + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |