[Core] Added POSIX support (Experimental)

Thanks to Danman
I don't think it actually compile although tried my best to correct
code.


Former-commit-id: c3366c2c924f7392f4d46824dafca63ecf7f1fea

src/Nazara/Core/Posix/ConditionVariableImpl.hpp

@@ -0,0 +1,35 @@
+// Copyright (C) 2012 Alexandre Janniaux
+// This file is part of the "Nazara Engine - Core module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+// http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
+
+#pragma once
+
+#ifndef NAZARA_CONDITIONVARIABLEIMPL_HPP
+#define NAZARA_CONDITIONVARIABLEIMPL_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <pthread.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+class NzMutexImpl;
+
+class NzConditionVariableImpl
+{
+	public:
+		NzConditionVariableImpl();
+		~NzConditionVariableImpl();
+
+		void Signal();
+		void SignalAll();
+
+		void Wait(NzMutexImpl* mutex);
+		bool Wait(NzMutexImpl* mutex, nzUInt32 timeout);
+
+	private:
+		pthread_cond_t m_cv;
+};
+
+#endif // NAZARA_CONDITIONVARIABLEIMPL_HPP