add

+/*
+ * Copyright 2007 Stephen Liu
+ * For license terms, see the file COPYING along with this library.
+ */
+
+
+#ifndef __spexecutor_hpp__
+#define __spexecutor_hpp__
+
+#include "spthread.hpp"
+
+class SP_ThreadPool;
+class SP_BlockingQueue;
+
+class SP_Task {
+public:
+	virtual ~SP_Task();
+	virtual void run() = 0;
+};
+
+class SP_SimpleTask : public SP_Task {
+public:
+	typedef void ( * ThreadFunc_t ) ( void * );
+
+	SP_SimpleTask( ThreadFunc_t func, void * arg, int deleteAfterRun );
+	virtual ~SP_SimpleTask();
+
+	virtual void run();
+
+private:
+	ThreadFunc_t mFunc;
+	void * mArg;
+
+	int mDeleteAfterRun;
+};
+
+class SP_Executor {
+public:
+	SP_Executor( int maxThreads, const char * tag = 0 );
+	~SP_Executor();
+
+	void execute( SP_Task * task );
+	void execute( void ( * func ) ( void * ), void * arg );
+	int getQueueLength();
+	void shutdown();
+
+private:
+	static void msgQueueCallback( void * queueData, void * arg );
+	static void worker( void * arg );
+	static sp_thread_result_t SP_THREAD_CALL eventLoop( void * arg );
+
+	SP_ThreadPool * mThreadPool;
+	SP_BlockingQueue * mQueue;
+
+	int mIsShutdown;
+
+	sp_thread_mutex_t mMutex;
+	sp_thread_cond_t mCond;
+};
+
+#endif
+