//  TThread.h - Macintosh Thread class object

// 

// Apple Macintosh Developer Technical Support

// Written by:  Vinne Moscaritolo

//

//  Copyright (work in progress)  Apple Computer, Inc All rights reserved.

//

// You may incorporate this sample code into your applications without

// restriction, though the sample code has been provided "AS IS" and the

// responsibility for its operation is 100% yours.  However, what you are

// not permitted to do is to redistribute the source as "DSC Sample Code"

// after having made changes. If you're going to re-distribute the source,

// we require that you make it clear in the source that the code was

// descended from Apple Sample Code, but that you've made changes.

// 

#ifndef _H_TTHREAD

#define _H_TTHREAD

#include <Threads.h>        // Thread manager

#include "TContext.h"

class TThread

{

//  CONSTRUCTORS AND DESTRUCTORS

public:

                    TThread();

    virtual         ~TThread();

// HIGH LEVEL FUNCTIONS

public:

    void    Start();                

    void    Stop(void* theResult = nil);

    void    Sleep();

    void    WakeUp();

// CALLBACK METHODS

protected:

    virtual void*   Run();

    virtual void    Done();

// THREAD MANAGER CALLBACKS

private:

    static pascal void* DoEntry         (void *);

    static pascal void  DoTermination   (ThreadID , void*);

    static pascal void  DoSwapIn        (ThreadID, void*);

    static pascal void  DoSwapOut       (ThreadID, void*);

// PRIVATE METHODS

private:

    void    Initialize();

// PRIVATE FIELDS

private:

    TContext            fContext;

    ThreadID            fTID;   

    void*               fResult;

// CLASS FUNCTIONS

public:

    static  void    Allocate(short numToCreate, long MinStack);

    static  void    Yield();

// CLASS VARIABLES

private:

    static Boolean              fgInited;           // is the thread class initialised?

    static ProcessSerialNumber  fgPSN;              // ptr to application's PSN

    static ThreadTaskRef        fgThreadTaskRef;    // thread task ref

};

#endif