- now the mess with threads has gone away

- we have a class BaseThread -- this is a base class -- we can inherit from it when
  creating a new thread
- others treads are correctly stopped (when signal comes) -- pthread_join
- we have a special thread only for signals



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@685 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/basethread.h

@@ -0,0 +1,91 @@
+/*
+ * This file is a part of Winix
+ * and is not publicly distributed
+ * 
+ * Copyright (c) 2010, Tomasz Sowa
+ * All rights reserved.
+ * 
+ */
+ 
+#ifndef headerfilecmslucorebasethread
+#define headerfilecmslucorebasethread
+
+#include <pthread.h>
+#include "synchro.h"
+
+
+
+class BaseThread
+{
+public:
+	
+	BaseThread();
+
+	// these method must be called before starting the thread
+	void SetSynchro(Synchro * psynchro);
+	void SetSignal(pthread_cond_t * psignal);
+
+	// starting the thread
+	bool StartThread();
+
+	// waiting until the thread exits
+	void WaitForThread();
+
+
+
+	// virtual methods which should/can be inherited by your class
+	// the methods will be called from the other thread
+
+	// initialize the thread
+	// (global objects are locked)
+	// if it returns false then the thread immediately exists
+	virtual bool Init() { return false; }
+
+	// uninitialize the thread
+	// this is called before the thread is prepare to detach
+	// (global objects are locked)
+	virtual void Uninit() {}
+
+	// signal came
+	// check specific job and return true to call Do() next
+	// (global objects are locked -- copy some global objects to local variables)
+	virtual bool SignalReceived() { return false; };
+
+	// if SignalReceived() returned true then this method is called
+	// global object are *not* locked -- use only your local variables
+	// if you have to do something on global objects use synchro->Lock() and synchro->Unlock()
+	virtual void Do() {}
+
+
+protected:
+
+	// this pointers must be set
+	Synchro * synchro;
+	pthread_cond_t * thread_signal;
+
+	pthread_t thread_id; // thread id - set automatically
+
+	void StartRoutine();
+	static void * StartRoutine(void *);
+	bool BaseInit();
+	void BaseUninit();
+	bool BaseSignalReceived();
+	void BaseDo();
+	bool WaitForSignal();
+	bool WaitForSignalSleep(time_t second);
+
+	bool Lock();
+	void Unlock();
+
+	// if the work done by Do() is long time consuming you should periodically check
+	// wheter there was a signal for exiting, and if it was just simply return from Do()
+	// (it's checking with locking and unlocking)
+	bool IsExitSignal();
+
+};
+
+
+
+
+#endif
+