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// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
// 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 the Andrey N. Sabelnikov 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 THE COPYRIGHT HOLDERS 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 THE COPYRIGHT OWNER 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.
//
#ifndef __WINH_OBJ_H__
#define __WINH_OBJ_H__
#include <boost/chrono/duration.hpp>
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/locks.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/recursive_mutex.hpp>
#include <boost/thread/thread.hpp>
namespace epee
{
namespace debug
{
inline unsigned int &g_test_dbg_lock_sleep()
{
static unsigned int value = 0;
return value;
}
}
struct simple_event
{
simple_event() : m_rised(false)
{
}
void raise()
{
boost::unique_lock<boost::mutex> lock(m_mx);
m_rised = true;
m_cond_var.notify_one();
}
void wait()
{
boost::unique_lock<boost::mutex> lock(m_mx);
while (!m_rised)
m_cond_var.wait(lock);
m_rised = false;
}
private:
boost::mutex m_mx;
boost::condition_variable m_cond_var;
bool m_rised;
};
class critical_region;
class critical_section
{
boost::recursive_mutex m_section;
public:
//to make copy fake!
critical_section(const critical_section& section)
{
}
critical_section()
{
}
~critical_section()
{
}
void lock()
{
m_section.lock();
//EnterCriticalSection( &m_section );
}
void unlock()
{
m_section.unlock();
}
bool tryLock()
{
return m_section.try_lock();
}
// to make copy fake
critical_section& operator=(const critical_section& section)
{
return *this;
}
};
template<class t_lock>
class critical_region_t
{
t_lock& m_locker;
bool m_unlocked;
critical_region_t(const critical_region_t&) {}
public:
critical_region_t(t_lock& cs): m_locker(cs), m_unlocked(false)
{
m_locker.lock();
}
~critical_region_t()
{
unlock();
}
void unlock()
{
if (!m_unlocked)
{
m_locker.unlock();
m_unlocked = true;
}
}
};
#define SHARED_CRITICAL_REGION_BEGIN(x) { shared_guard critical_region_var(x)
#define EXCLUSIVE_CRITICAL_REGION_BEGIN(x) { exclusive_guard critical_region_var(x)
#define CRITICAL_REGION_LOCAL(x) {boost::this_thread::sleep_for(boost::chrono::milliseconds(epee::debug::g_test_dbg_lock_sleep()));} epee::critical_region_t<decltype(x)> critical_region_var(x)
#define CRITICAL_REGION_BEGIN(x) { boost::this_thread::sleep_for(boost::chrono::milliseconds(epee::debug::g_test_dbg_lock_sleep())); epee::critical_region_t<decltype(x)> critical_region_var(x)
#define CRITICAL_REGION_LOCAL1(x) {boost::this_thread::sleep_for(boost::chrono::milliseconds(epee::debug::g_test_dbg_lock_sleep()));} epee::critical_region_t<decltype(x)> critical_region_var1(x)
#define CRITICAL_REGION_BEGIN1(x) { boost::this_thread::sleep_for(boost::chrono::milliseconds(epee::debug::g_test_dbg_lock_sleep())); epee::critical_region_t<decltype(x)> critical_region_var1(x)
#define CRITICAL_REGION_END() }
}
#endif
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