migrate ALMOST everything from source tree into client

source/client/common/CThread.hpp

@@ -0,0 +1,41 @@
+/********************************************************************
+	Minecraft: Pocket Edition - Decompilation Project
+	Copyright (C) 2023 iProgramInCpp
+	
+	The following code is licensed under the BSD 1 clause license.
+	SPDX-License-Identifier: BSD-1-Clause
+ ********************************************************************/
+
+#pragma once
+
+// CThread - Object oriented pthread wrapper
+#define USE_CPP11_THREADS
+
+// USE_CPP11_THREADS - Use a C++11 implementation of threads instead of using pthread
+#ifdef USE_CPP11_THREADS
+#include <thread>
+#else
+#include <pthread.h>
+#endif
+
+typedef void* (*CThreadFunction)(void*);
+
+class CThread
+{
+public:
+	CThread(CThreadFunction, void* parm);
+	~CThread();
+
+	static void sleep(uint32_t ms);
+
+private:
+	CThreadFunction m_func;
+
+#ifdef USE_CPP11_THREADS
+	std::thread m_thrd;
+#else
+	pthread_t m_thrd;
+	pthread_attr_t m_thrd_attr;
+#endif
+};
+