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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @author Peter Boros
* @date 2004/09/07
* @version $Id$
* @file mutex.h
* @brief Mutex.
*
*/
#pragma once
// {{{ class Mutex
namespace fsa {
/**
* @class Mutex
* @brief Mutex.
*
* Simple mutex class based on POSIX pthread_mutex_t.
*/
class Mutex
{
protected:
struct Impl;
Impl *_impl;
public:
/**
* @brief Constructor
*/
Mutex(void);
/**
* @brief Destructor
*/
~Mutex(void);
/**
* @brief Try to get a lock.
*
* Try to get a lock. This method is non-blocking, and
* returns true if locking was succesful.
*
* @return True if locking was successful.
*/
bool tryLock (void);
/**
* @brief Get a lock.
*
* Get a read (shared) lock. This method blocks until a
* lock is available (that is no other thread holds a
* lock on the object.)
*
* @return True if locking was successful.
*/
bool lock (void);
/**
* @brief Release a lock.
*
* @return True if unlocking was successful.
*/
bool unlock (void);
};
// }}}
} // namespace fsa
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