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selove / src / modules / thread / Thread.h

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/**
* Copyright (c) 2006-2012 LOVE Development Team
*
* This software is provided 'as-is', without any express or implied
* warranty.  In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
*    claim that you wrote the original software. If you use this software
*    in a product, an acknowledgment in the product documentation would be
*    appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
*    misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
**/

#ifndef LOVE_THREAD_SDL_THREAD_H
#define LOVE_THREAD_SDL_THREAD_H

// STL
#include <map>
#include <string>
#include <vector>
#include <cstring>

// LOVE
#include <filesystem/File.h>
#include <common/runtime.h>
#include <common/Module.h>
#include <common/Variant.h>
#include <thread/threads.h>

#ifndef LOVE_SANDBOX
#define LOVE_SANDBOX
#include "scripts/sandbox.lua.h"
#endif // LOVE_SANDBOX
namespace love
{
namespace thread
{

	class ThreadModule;

	class ThreadData
	{
	private:
		char *code;
		char *name;
		std::map<std::string, Variant*> shared;
		size_t len;

	public:
		ThreadData(const char *name, size_t len, const char *code, void *mutex, void *cond);
		~ThreadData();
		const char *getCode();
		const char *getName(size_t *len = 0);
		Variant* getValue(const std::string & name);
		void clearValue(const std::string & name);
		void setValue(const std::string & name, Variant *v);
		std::vector<std::string> getKeys();

		void *mutex;
		void *cond;
	};

	class Thread : public love::Object
	{
	private:
		class ThreadThread: public ThreadBase {
		private:
			ThreadData* comm;

		protected:
			virtual void main();

		public:
			ThreadThread(ThreadData* comm);
		};

		ThreadThread *handle;

		ThreadModule *module;
		ThreadData *comm;
		std::string name;
		char *data;
		Mutex *mutex;
		Conditional *cond;
		bool isThread;


	public:
		Thread(love::thread::ThreadModule *module, const std::string & name, love::Data *data);
		Thread(love::thread::ThreadModule *module, const std::string & name);
		virtual ~Thread();
		void start();
		void kill();
		void wait();
		std::string getName();
		Variant *get(const std::string & name);
		std::vector<std::string> getKeys();
		Variant *demand(const std::string & name);
		void clear(const std::string & name);
		void set(const std::string & name, Variant *v);
		void lock();
		void unlock();
	}; // Thread

	typedef std::map<std::string, Thread*> threadlist_t;

	class ThreadModule : public love::Module
	{
	private:
		threadlist_t threads;

	public:
		ThreadModule();
		virtual ~ThreadModule();
		Thread *newThread(const std::string & name, love::Data *data);
		void getThreads(Thread ** list);
		Thread *getThread(const std::string & name);
		unsigned getThreadCount() const;
		void unregister(const std::string & name);
		const char *getName() const;
	}; // ThreadModule
} // thread
} // love

#endif // LOVE_THREAD_SDL_THREAD_H