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diff --git a/sal/inc/osl/mutex.h b/sal/inc/osl/mutex.h
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef _OSL_MUTEX_H_
+#define _OSL_MUTEX_H_
+
+#include <sal/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct _oslMutexImpl;
+typedef struct _oslMutexImpl * oslMutex;
+
+/** Create a thread-local mutex.
+    @return 0 if the mutex could not be created, otherwise a handle to the mutex.
+*/
+oslMutex SAL_CALL osl_createMutex(void);
+
+/** Release the OS-structures and free mutex data-structure.
+    @param Mutex the mutex-handle
+*/
+void SAL_CALL osl_destroyMutex(oslMutex Mutex);
+
+/** Acquire the mutex, block if already acquired by another thread.
+    @param Mutex handle to a created mutex.
+    @return False if system-call fails.
+*/
+sal_Bool SAL_CALL osl_acquireMutex(oslMutex Mutex);
+
+/** Try to acquire the mutex without blocking.
+    @param Mutex handle to a created mutex.
+    @return False if it could not be acquired.
+*/
+sal_Bool SAL_CALL osl_tryToAcquireMutex(oslMutex Mutex);
+
+/** Release the mutex.
+    @param Mutex handle to a created mutex.
+    @return False if system-call fails.
+*/
+sal_Bool SAL_CALL osl_releaseMutex(oslMutex Mutex);
+
+/** Returns a unique and global mutex.
+    @return the global mutex.
+*/
+oslMutex * SAL_CALL osl_getGlobalMutex(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* _OSL_MUTEX_H_ */