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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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 * 
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#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_ */