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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-flock1.c
parenta319d590551ff74bbc4de51243e2d5f20ac4c7fd (diff)
test/nptl/: tests for NPTL
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'test/nptl/tst-flock1.c')
-rw-r--r--test/nptl/tst-flock1.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/test/nptl/tst-flock1.c b/test/nptl/tst-flock1.c
new file mode 100644
index 000000000..ed2472d3a
--- /dev/null
+++ b/test/nptl/tst-flock1.c
@@ -0,0 +1,93 @@
+/* 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 <unistd.h>
+#include <sys/file.h>
+
+
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+static int fd;
+
+
+static void *
+tf (void *arg)
+{
+ if (flock (fd, LOCK_SH | LOCK_NB) != 0)
+ {
+ puts ("second flock failed");
+ exit (1);
+ }
+
+ pthread_mutex_unlock (&lock);
+
+ return NULL;
+}
+
+
+static int
+do_test (void)
+{
+ char tmp[] = "/tmp/tst-flock1-XXXXXX";
+
+ fd = mkstemp (tmp);
+ if (fd == -1)
+ {
+ puts ("mkstemp failed");
+ exit (1);
+ }
+
+ unlink (tmp);
+
+ write (fd, "foobar xyzzy", 12);
+
+ if (flock (fd, LOCK_EX | LOCK_NB) != 0)
+ {
+ puts ("first flock failed");
+ exit (1);
+ }
+
+ pthread_mutex_lock (&lock);
+
+ pthread_t th;
+ if (pthread_create (&th, NULL, tf, NULL) != 0)
+ {
+ puts ("pthread_create failed");
+ exit (1);
+ }
+
+ pthread_mutex_lock (&lock);
+
+ void *result;
+ if (pthread_join (th, &result) != 0)
+ {
+ puts ("pthread_join failed");
+ exit (1);
+ }
+
+ close (fd);
+
+ return result != NULL;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"