Category : Alternate Operating Systems - Quarterdeck DesqView, CP/M, etc
Archive   : PCCAPP.ZIP
Filename : FRT.H

/*
* This file is part of the Choices Operating System
* Developed by: The TAPESTRY Parallel Computing Laboratory
* University of Illinois at Urbana-Champaign
* Department of Computer Science
* 1304 W. Springfield Ave.
* Urbana, IL 61801
*
* Copyright (c) 1987, 1988, 1989, 1990, 1991, 1992
* The University of Illinois Board of Trustees.
* All Rights Reserved.
*
* Author: Vincent F. Russo ([email protected])
* Author: Gary M. Johnston ([email protected])
* Contributing Author: Lee Lup Yuen ([email protected])
* Project Manager and Principal Investigator: Roy Campbell ([email protected])
*
* Funded by: NSF TAPESTRY Grant No. 1-5-30035, NASA ICLASS Grant
* No. 1-5-25469 and No. NSG1471 and AT&T Metronet Grant No. 1-5-37411.
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for educational, research, and non-profit purposes
* is hereby granted provided that the above copyright notice, the
* original authors names, and this permission notice appear in all such
* copies and supporting documentation; that no charge be made for such
* copies; and that the name of the University of Illinois not be used
* in advertising or publicity pertaining to distribution of the
* software without specific prior written permission. Any entity
* desiring permission to incorporate this software into commercial
* products should contact the Computing Research Laboratory, Department
* of Computer Science, University of Illinois, 1304 W. Springfield
* Avenue, Urbana, IL 61801. The University of Illinois makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*/
/*
* FreeRunningTimer.h: Class to lookup the time in microseconds since Choices
* was started. This is really only useful for debugging
* and timing since the timer rolls every so often.
* This is the machine-independent parent class.
*
*/

#ifndef FreeRunningTimer_h
#define FreeRunningTimer_h
#ifdef __GNUG__
#pragma once
#pragma interface
#endif

#include "ProxiableObject.h" /* parent class */
class FreeRunningTimerStar;

extern ClassStar FreeRunningTimerClass;

class FreeRunningTimer : public ProxiableObject {
/* A FreeRunningTimer is used to find out the time in microseconds since the
* kernel started running. The timer will wrap around to 0 when the time
* value exceeds the capacity of the internal counter. This is an abstract
* class that should not be instantiated directly; the subclass is responsible
* for maintaining the current time.
*/
public:
/* Method time: Returns time in microseconds since the kernel
* started running. This method must be redefined in the subclass.
* Caution: The timer will wrap around to 0 when it exceeds the
* capacity of an "unsigned int".
*/
proxiable virtual unsigned int time();

/* Method classOf: Return the class of the object. */
Class * classOf();
};

/* The SystemTimer global variable is meant to be used only by the kernel.
* Applications should fetch the SystemTimer from the StandardNameServer
* using the name "SystemTimer".
*/
extern FreeRunningTimerStar SystemTimer;

#endif /* FreeRunningTimer_h */
/*
* This file is part of the Choices Operating System
* Developed by: The TAPESTRY Parallel Computing Laboratory
* University of Illinois at Urbana-Champaign
* Department of Computer Science
* 1304 W. Springfield Ave.
* Urbana, IL 61801
*
* Copyright (c) 1987, 1988, 1989, 1990, 1991, 1992
* The University of Illinois Board of Trustees.
* All Rights Reserved.
*
* Author: Systems Research Group ([email protected])
* Project Manager and Principal Investigator: Roy Campbell ([email protected])
*
* Funded by: NSF TAPESTRY Grant No. 1-5-30035, NASA ICLASS Grant
* No. 1-5-25469 and No. NSG1471 and AT&T Metronet Grant No. 1-5-37411.
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for educational, research, and non-profit purposes
* is hereby granted provided that the above copyright notice, the
* original authors names, and this permission notice appear in all such
* copies and supporting documentation; that no charge be made for such
* copies; and that the name of the University of Illinois not be used
* in advertising or publicity pertaining to distribution of the
* software without specific prior written permission. Any entity
* desiring permission to incorporate this software into commercial
* products should contact the Computing Research Laboratory, Department
* of Computer Science, University of Illinois, 1304 W. Springfield
* Avenue, Urbana, IL 61801. The University of Illinois makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*/
/* This file was generated by Proxify++ version 0.1 */

#ifndef FreeRunningTimer_h
#define FreeRunningTimer_h
#ifdef __GNUG__
#pragma once
#pragma interface
#endif
#include "ProxiableObject.h"
class FreeRunningTimerStar;
extern ClassStar FreeRunningTimerClass;
class FreeRunningTimer : public ProxiableObject {
public:
proxiable virtual unsigned int time();
};
extern FreeRunningTimerStar SystemTimer;
#include "VersionInstaller.h"
REQUIREDVERSION( FreeRunningTimer );
#endif FreeRunningTimer_h