windows/SysActivity.hpp

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/******************************************************************************/
/* REXX Kernel                                              SysActivity.hpp   */
/*                                                                            */
/* System support for Thread operations                                       */
/*                                                                            */
/******************************************************************************/
 
#ifndef Included_SysActivity
#define Included_SysActivity
 
#include "windows.h"
#include <stdio.h>
 
class RexxActivity;
 
class SysActivity
{
public:
 
 
    inline SysActivity() : threadId(0), hThread(NULL) { }
    inline bool equals(thread_id_t t) { return threadId == t; }
    void create(RexxActivity *activity, size_t stackSize);
    void close();
    void useCurrentThread();
    bool validateThread();
    char *getStackBase(size_t stackSize);
    inline thread_id_t getThreadID() { return threadId; }
 
    static thread_id_t queryThreadID();
    static void yield();
    static wholenumber_t yieldCounter();
 
protected:
    thread_id_t   threadId;         // the thread identifier
    HANDLE        hThread;          // handle to thread (needed for some operations)
};
 
#endif