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authorUlrich Drepper <drepper@redhat.com>2003-02-10 23:43:49 +0000
committerUlrich Drepper <drepper@redhat.com>2003-02-10 23:43:49 +0000
commitdefd18709cb11143dd37d00e0d74cf12ec7153e2 (patch)
treeaf39acb35070815e5a348f60253d91f8f510d6ef /nptl/tst-once4.c
parent2a8a8a846166717fc5f30b7b8719cab0abb5889a (diff)
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Update.
* Makefile (tests): Add tst-once3 and tst-once4. * tst-once4.c: New file.
Diffstat (limited to 'nptl/tst-once4.c')
-rw-r--r--nptl/tst-once4.c182
1 files changed, 182 insertions, 0 deletions
diff --git a/nptl/tst-once4.c b/nptl/tst-once4.c
new file mode 100644
index 0000000..be83b54
--- /dev/null
+++ b/nptl/tst-once4.c
@@ -0,0 +1,182 @@
+/* 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 <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+
+#define N 100
+
+static pthread_once_t once = PTHREAD_ONCE_INIT;
+
+static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
+
+static pthread_barrier_t bar;
+
+static int global;
+
+static void
+once_handler1 (void)
+{
+ if (pthread_mutex_lock (&mut) != 0)
+ {
+ puts ("once_handler1: mutex_lock failed");
+ exit (1);
+ }
+
+ int r = pthread_barrier_wait (&bar);
+ if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("once_handler1: barrier_wait failed");
+ exit (1);
+ }
+
+ pthread_cond_wait (&cond, &mut);
+
+ /* We should never get here. */
+}
+
+
+static void
+once_handler2 (void)
+{
+ global = 1;
+}
+
+
+static void *
+tf1 (void *arg)
+{
+ pthread_once (&once, once_handler1);
+
+ /* We should never get here. */
+ puts ("pthread_once in tf returned");
+ exit (1);
+}
+
+
+static void *
+tf2 (void *arg)
+{
+ int r = pthread_barrier_wait (&bar);
+ if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("once_handler2: barrier_wait failed");
+ exit (1);
+ }
+
+ pthread_once (&once, once_handler2);
+
+ return NULL;
+}
+
+
+static int
+do_test (void)
+{
+ pthread_t th[2];
+
+ if (pthread_barrier_init (&bar, NULL, 2) != 0)
+ {
+ puts ("barrier_init failed");
+ exit (1);
+ }
+
+ if (pthread_create (&th[0], NULL, tf1, NULL) != 0)
+ {
+ puts ("first create failed");
+ exit (1);
+ }
+
+ int r = pthread_barrier_wait (&bar);
+ if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("first barrier_wait failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_lock (&mut) != 0)
+ {
+ puts ("mutex_lock failed");
+ exit (1);
+ }
+ /* We unlock the mutex so that we catch the case where the pthread_cond_wait
+ call incorrectly resumes and tries to get the mutex. */
+ if (pthread_mutex_unlock (&mut) != 0)
+ {
+ puts ("mutex_unlock failed");
+ exit (1);
+ }
+
+ if (pthread_create (&th[1], NULL, tf2, NULL) != 0)
+ {
+ puts ("second create failed");
+ exit (1);
+ }
+
+ r = pthread_barrier_wait (&bar);
+ if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("second barrier_wait failed");
+ exit (1);
+ }
+
+ /* Give the second thread a chance to reach the pthread_once call. */
+ sleep (2);
+
+ /* Cancel the thread. */
+ if (pthread_cancel (th[0]) != 0)
+ {
+ puts ("cancel failed");
+ exit (1);
+ }
+
+ void *result;
+ pthread_join (th[0], &result);
+ if (result != PTHREAD_CANCELED)
+ {
+ puts ("first join didn't return PTHREAD_CANCELED");
+ exit (1);
+ }
+
+ puts ("joined first thread");
+
+ pthread_join (th[1], &result);
+ if (result != NULL)
+ {
+ puts ("second join didn't return PTHREAD_CANCELED");
+ exit (1);
+ }
+
+ if (global != 1)
+ {
+ puts ("global still 0");
+ exit (1);
+ }
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#define TIMEOUT 4
+#include "../test-skeleton.c"