First commit

src/Nazara/Core/Win32/SemaphoreImpl.cpp

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+// 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
+
+#include <Nazara/Core/Win32/SemaphoreImpl.hpp>
+#include <Nazara/Core/Error.hpp>
+#include <limits>
+#include <Nazara/Core/Debug.hpp>
+
+NzSemaphoreImpl::NzSemaphoreImpl(unsigned int count)
+{
+	m_semaphore = CreateSemaphore(nullptr, count, std::numeric_limits<LONG>::max(), nullptr);
+	#if NAZARA_CORE_SAFE ///FIXME: Ne peut échouer qu'à cause de mauvais paramètres ?
+	if (!m_semaphore)
+		NazaraError("Failed to create semaphore: " + NzGetLastSystemError());
+	#endif
+}
+
+NzSemaphoreImpl::~NzSemaphoreImpl()
+{
+	CloseHandle(m_semaphore);
+}
+
+unsigned int NzSemaphoreImpl::GetCount() const
+{
+	LONG count;
+	ReleaseSemaphore(m_semaphore, 0, &count);
+	return count;
+}
+
+void NzSemaphoreImpl::Post()
+{
+	#if NAZARA_CORE_SAFE
+	if (!ReleaseSemaphore(m_semaphore, 1, nullptr))
+		NazaraError("Failed to release semaphore: " + NzGetLastSystemError());
+	#else
+	ReleaseSemaphore(m_semaphore, 1, nullptr);
+	#endif
+}
+
+void NzSemaphoreImpl::Wait()
+{
+	#if NAZARA_CORE_SAFE
+	if (WaitForSingleObject(m_semaphore, INFINITE) == WAIT_FAILED)
+		NazaraError("Failed to wait for semaphore: " + NzGetLastSystemError());
+	#else
+	WaitForSingleObject(m_semaphore, INFINITE);
+	#endif
+}
+
+bool NzSemaphoreImpl::Wait(nzUInt32 timeout)
+{
+	#if NAZARA_CORE_SAFE
+	DWORD result = WaitForSingleObject(m_semaphore, timeout);
+	if (result == WAIT_FAILED)
+	{
+		NazaraError("Failed to wait for semaphore: " + NzGetLastSystemError());
+		return false;
+	}
+	else
+		return result == WAIT_OBJECT_0;
+	#else
+	return WaitForSingleObject(m_semaphore, timeout) == WAIT_OBJECT_0;
+	#endif
+}