NazaraEngine/src/Nazara/Core/Win32/ThreadImpl.cpp

95 lines
2.1 KiB
C++

// Copyright (C) 2012 Jérôme Leclercq
// This file is part of the "Nazara Engine".
// For conditions of distribution and use, see copyright notice in Config.hpp
// Inspiré du code de la SFML par Laurent Gomila
#include <Nazara/Core/Win32/ThreadImpl.hpp>
#include <Nazara/Core/Error.hpp>
#include <Nazara/Core/Functor.hpp>
#include <process.h>
#include <Nazara/Core/Debug.hpp>
NzThread::Id::Id(const NzThreadImpl* thread)
{
if (thread->m_thread)
m_handle = reinterpret_cast<void*>(thread->m_threadId); // Un entier transformé en pointeur : Hacky
else
m_handle = nullptr;
}
NzThread::Id::~Id()
{
}
bool NzThread::Id::operator==(const Id& rhs) const
{
return m_handle == rhs.m_handle;
}
bool NzThread::Id::operator!=(const Id& rhs) const
{
return m_handle != rhs.m_handle;
}
NzThreadImpl::NzThreadImpl(NzThread* thread)
{
m_thread = reinterpret_cast<HANDLE>(_beginthreadex(nullptr, 0, &NzThreadImpl::ThreadProc, thread, 0, &m_threadId));
if (!m_thread)
NazaraError("Failed to create thread: " + NzGetLastSystemError());
}
NzThreadImpl::~NzThreadImpl()
{
}
NzThread::Id NzThreadImpl::GetId() const
{
return NzThread::Id(reinterpret_cast<void*>(m_threadId)); // Hacky
}
bool NzThreadImpl::IsCurrent() const
{
return m_threadId == GetCurrentThreadId();
}
void NzThreadImpl::Join()
{
if (m_thread)
WaitForSingleObject(m_thread, INFINITE);
}
void NzThreadImpl::Terminate()
{
if (m_thread)
TerminateThread(m_thread, 0);
}
unsigned int _stdcall NzThreadImpl::ThreadProc(void* userdata)
{
NzThread* owner = reinterpret_cast<NzThread*>(userdata);
NzFunctor* func = owner->m_func;
HANDLE myHandle = owner->m_impl->m_thread;
func->Run();
delete func;
// http://stackoverflow.com/questions/418742/is-it-reasonable-to-call-closehandle-on-a-thread-before-it-terminates
CloseHandle(myHandle);
/*
En C++, il vaut mieux retourner depuis la fonction que de quitter le thread explicitement
Source : http://msdn.microsoft.com/en-us/library/windows/desktop/ms682659(v=vs.85).aspx
*/
return 0;
}
NzThread::Id NzThread::GetCurrentId()
{
return NzThread::Id(reinterpret_cast<void*>(GetCurrentThreadId())); // Hacky
}
void NzThread::Sleep(nzUInt32 time)
{
::Sleep(time);
}