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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
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Diffstat (limited to 'pthreads/tests/mutex6s.c')
-rw-r--r--pthreads/tests/mutex6s.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/pthreads/tests/mutex6s.c b/pthreads/tests/mutex6s.c
new file mode 100644
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--- /dev/null
+++ b/pthreads/tests/mutex6s.c
@@ -0,0 +1,93 @@
+/*
+ * mutex6s.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 1998 John E. Bossom
+ * Copyright(C) 1999,2005 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@callisto.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This 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 of the License, or (at your option) any later version.
+ *
+ * This 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 this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Test the default (type not set) static mutex type.
+ * Should be the same as PTHREAD_MUTEX_NORMAL.
+ * Thread locks mutex twice (recursive lock).
+ * Locking thread should deadlock on second attempt.
+ *
+ * Depends on API functions:
+ * pthread_mutex_lock()
+ * pthread_mutex_trylock()
+ * pthread_mutex_unlock()
+ */
+
+#include "test.h"
+
+static int lockCount = 0;
+
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+
+void * locker(void * arg)
+{
+ assert(pthread_mutex_lock(&mutex) == 0);
+ lockCount++;
+
+ /* Should wait here (deadlocked) */
+ assert(pthread_mutex_lock(&mutex) == 0);
+ lockCount++;
+ assert(pthread_mutex_unlock(&mutex) == 0);
+
+ return 0;
+}
+
+int
+main()
+{
+ pthread_t t;
+
+ assert(mutex == PTHREAD_MUTEX_INITIALIZER);
+
+ assert(pthread_create(&t, NULL, locker, NULL) == 0);
+
+ Sleep(1000);
+
+ assert(lockCount == 1);
+
+ /*
+ * Should succeed even though we don't own the lock
+ * because FAST mutexes don't check ownership.
+ */
+ assert(pthread_mutex_unlock(&mutex) == 0);
+
+ Sleep (1000);
+
+ assert(lockCount == 2);
+
+ exit(0);
+
+ /* Never reached */
+ return 0;
+}