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/*
* This file is part of the Omni C++ framework
*
* Copyright (c) 2016, Zeriph Enterprises, LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of Zeriph, Zeriph Enterprises, LLC, nor the names
* of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ZERIPH AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ZERIPH AND CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if !defined(OMNI_MUTEX_HPP)
#define OMNI_MUTEX_HPP 1
#include <omni/defs/class_macros.hpp>
#include <omni/sync/lock.hpp>
#include <omni/sync/basic_lock.hpp> // included for convenience
#if defined(OMNI_MUTEX_OWNER)
#include <omni/types/thread_t.hpp>
#endif
namespace omni {
namespace sync {
class mutex
{
public:
mutex();
explicit mutex(bool initialy_owned);
~mutex(); // shouldn't inherit
const omni::sync::mutex_t handle() const;
bool locked() const;
void lock();
bool lock(std::size_t timeout_ms);
void unlock();
bool trylock();
bool operator==(const omni::sync::mutex& o) const;
bool operator!=(const omni::sync::mutex& o) const;
OMNI_MEMBERS_FW(omni::sync::mutex) // disposing,name,type(),hash()
private:
// defined but not implemented, shouldn't be copied
mutex(const omni::sync::mutex &cp);
omni::sync::mutex& operator=(const omni::sync::mutex& other);
#if defined(OMNI_TYPE_INFO)
omni::type<omni::sync::mutex> m_type;
#endif
volatile std::size_t m_lokd;
omni::sync::mutex_t m_mtx;
#if defined(OMNI_SAFE_MUTEX)
mutable omni::sync::mutex_t m_imtx; // internal mutex
#endif
#if defined(OMNI_MUTEX_OWNER)
omni::sync::thread_t m_owner;
#endif
};
}
}
#endif // OMNI_MUTEX_HPP