Source: ../../libxorp/clock.hh
|
|
|
|
// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
// vim:set sts=4 ts=8:
// Copyright (c) 2001-2005 International Computer Science Institute
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software")
// to deal in the Software without restriction, subject to the conditions
// listed in the XORP LICENSE file. These conditions include: you must
// preserve this copyright notice, and you cannot mention the copyright
// holders in advertising related to the Software without their permission.
// The Software is provided WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED. This
// notice is a summary of the XORP LICENSE file; the license in that file is
// legally binding.
// $XORP: xorp/libxorp/clock.hh,v 1.3 2005/08/01 16:01:26 bms Exp $
#ifndef __LIBXORP_CLOCK_HH__
#define __LIBXORP_CLOCK_HH__
class TimeVal;
class ClockBase {
public:
virtual ~ClockBase() = 0;
/**
* Update internal concept of time.
*/
virtual void advance_time() = 0;
/**
* Get time it was when advance_time() was last called. Successive calls
* to current_time return the same value. Time only advances when
* advance_time() is called.
*
* @param tv TimeVal to be filled in with current time.
*/
virtual void current_time(TimeVal& tv) = 0;
};
/**
* An implementation of ClockBase that uses the underlying system's
* 'get current system time' function as it's clock source.
*/
class SystemClock : public ClockBase {
public:
SystemClock();
~SystemClock();
void advance_time();
void current_time(TimeVal& tv);
private:
TimeVal* _tv;
};
#endif // __LIBXORP_CLOCK_HH__
Generated by: pavlin on possum.icir.org on Thu Mar 9 04:41:55 2006, using kdoc $.