TaskSchedulerImpl for POSIX and compilation fixes

Former-commit-id: a402d40ac90cacf444b5832c49cfbdaf61f7f747

src/Nazara/Core/Posix/TaskSchedulerImpl.hpp

@@ -0,0 +1,48 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Core module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_TASKSCHEDULERIMPL_HPP
+#define NAZARA_TASKSCHEDULERIMPL_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/Functor.hpp>
+#include <atomic>
+#include <memory>
+#include <pthread.h>
+#include <queue>
+
+class NzTaskSchedulerImpl
+{
+	public:
+		NzTaskSchedulerImpl() = delete;
+		~NzTaskSchedulerImpl() = delete;
+
+		static bool Initialize(unsigned int workerCount);
+		static bool IsInitialized();
+		static void Run(NzFunctor** tasks, unsigned int count);
+		static void Uninitialize();
+		static void WaitForTasks();
+
+	private:
+		static void ClearQueue();
+		static NzFunctor* PopQueue();
+		static void Wait();
+		static void* WorkerProc(void* userdata);
+
+		static std::queue<NzFunctor*> s_tasks;
+		static std::unique_ptr<pthread_t[]> s_threads;
+		static std::atomic<bool> s_isDone;
+		static std::atomic<bool> s_isWaiting;
+		static std::atomic<bool> s_shouldFinish;
+		static unsigned int s_workerCount;
+
+		static pthread_mutex_t s_mutexQueue;
+		static pthread_cond_t s_cvEmpty;
+		static pthread_cond_t s_cvNotEmpty;
+		static pthread_barrier_t s_barrier;
+};
+
+#endif // NAZARA_TASKSCHEDULERIMPL_HPP