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authorAustin Foxley <austinf@cetoncorp.com>2009-10-17 12:39:06 -0700
committerAustin Foxley <austinf@cetoncorp.com>2009-10-17 12:39:06 -0700
commit75accc3bc3c164ac6063c384c98f0dfa7d489dcc (patch)
treea17543fc0ddbfd1478f4b68123bc32f12a31176f /test/nptl/tst-cond3.c
parenta319d590551ff74bbc4de51243e2d5f20ac4c7fd (diff)
test/nptl/: tests for NPTL
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'test/nptl/tst-cond3.c')
-rw-r--r--test/nptl/tst-cond3.c113
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"