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+/*
+ * rwlock4.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
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Declare a static rwlock object, rdlock it, trywrlock it,
+ * and then unlock it again.
+ *
+ * Depends on API functions:
+ * pthread_rwlock_rdlock()
+ * pthread_rwlock_trywrlock()
+ * pthread_rwlock_unlock()
+ */
+
+#include "test.h"
+
+pthread_rwlock_t rwlock1 = PTHREAD_RWLOCK_INITIALIZER;
+
+static int washere = 0;
+
+void * func(void * arg)
+{
+ assert(pthread_rwlock_trywrlock(&rwlock1) == EBUSY);
+
+ washere = 1;
+
+ return 0;
+}
+
+int
+main()
+{
+ pthread_t t;
+
+ assert(pthread_rwlock_rdlock(&rwlock1) == 0);
+
+ assert(pthread_create(&t, NULL, func, NULL) == 0);
+
+ Sleep(2000);
+
+ assert(pthread_rwlock_unlock(&rwlock1) == 0);
+
+ assert(washere == 1);
+
+ return 0;
+}