File: Timer.cc

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// Timer.cc for Blackbox - An X11 Window Manager
// Copyright (c) 1997 - 1999 Brad Hughes (bhughes@tcac.net)
//
// 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, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

// stupid macros needed to access some functions in version 2 of the GNU C
// library
#ifndef   _GNU_SOURCE
#  define _GNU_SOURCE
#endif // _GNU_SOURCE

#ifdef    HAVE_CONFIG_H
#  include "../config.h"
#endif // HAVE_CONFIG_H

#include "BaseDisplay.hh"
#include "Timer.hh"


BTimer::BTimer(BaseDisplay *d, TimeoutHandler *h)
{
	display = d;
	handler = h;

	once = timing = False;
}


BTimer::~BTimer(void)
{
	if (timing) stop();
}


void BTimer::setTimeout(long t)
{
	_timeout.tv_sec = t / 1000;
	_timeout.tv_usec = t;
	_timeout.tv_usec -= (_timeout.tv_sec * 1000);
	_timeout.tv_usec *= 1000;
}


void BTimer::setTimeout(timeval t)
{
	_timeout.tv_sec = t.tv_sec;
	_timeout.tv_usec = t.tv_usec;
}


void BTimer::start(void)
{
	gettimeofday(&_start, 0);

	if (! timing) {
		timing = True;
		display->addTimer(this);
	}
}


void BTimer::stop(void)
{
	timing = False;

	display->removeTimer(this);
}


void BTimer::fireTimeout(void)
{
	if (handler) handler->timeout();
}