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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2016 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/System/Unix/ThreadImpl.hpp>
#include <SFML/System/Thread.hpp>
#include <iostream>
#include <cassert>
namespace sf
{
namespace priv
{
////////////////////////////////////////////////////////////
ThreadImpl::ThreadImpl(Thread* owner) :
m_isActive(true)
{
m_isActive = pthread_create(&m_thread, NULL, &ThreadImpl::entryPoint, owner) == 0;
if (!m_isActive)
std::cerr << "Failed to create thread" << std::endl;
}
////////////////////////////////////////////////////////////
void ThreadImpl::wait()
{
if (m_isActive)
{
assert(pthread_equal(pthread_self(), m_thread) == 0); // A thread cannot wait for itself!
pthread_join(m_thread, NULL);
}
}
////////////////////////////////////////////////////////////
void ThreadImpl::terminate()
{
if (m_isActive)
{
#ifndef SFML_SYSTEM_ANDROID
pthread_cancel(m_thread);
#else
// See http://stackoverflow.com/questions/4610086/pthread-cancel-al
pthread_kill(m_thread, SIGUSR1);
#endif
}
}
////////////////////////////////////////////////////////////
void* ThreadImpl::entryPoint(void* userData)
{
// The Thread instance is stored in the user data
Thread* owner = static_cast<Thread*>(userData);
#ifndef SFML_SYSTEM_ANDROID
// Tell the thread to handle cancel requests immediately
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
#endif
// Forward to the owner
owner->run();
return NULL;
}
} // namespace priv
} // namespace sf
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