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// Timer.cc for FbTk - Fluxbox Toolkit
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// Copyright (c) 2003 - 2005 Henrik Kinnunen (fluxgen at fluxbox dot org)
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// Timer.cc for Blackbox - An X11 Window Manager
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// Copyright (c) 1997 - 2000 Brad Hughes (bhughes at tcac.net)
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#endif // HAVE_CONFIG_H
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#include <sys/types.h>
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Timer::TimerList Timer::m_timerlist;
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Timer::Timer():m_timing(false), m_once(false) {
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Timer::Timer(RefCount<Command> &handler):
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if (isTiming()) stop();
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void Timer::setTimeout(time_t t) {
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m_timeout.tv_sec = t / 1000;
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m_timeout.tv_usec = t;
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m_timeout.tv_usec -= (m_timeout.tv_sec * 1000);
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m_timeout.tv_usec *= 1000;
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void Timer::setTimeout(timeval t) {
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m_timeout.tv_sec = t.tv_sec;
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m_timeout.tv_usec = t.tv_usec;
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void Timer::setCommand(RefCount<Command> &cmd) {
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gettimeofday(&m_start, 0);
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// only add Timers that actually DO something
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if (! m_timing && *m_handler) {
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addTimer(this); //add us to the list
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removeTimer(this); //remove us from the list
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void Timer::fireTimeout() {
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m_handler->execute();
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void Timer::updateTimers(int fd) {
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timeval now, tm, *timeout = 0;
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if (m_timerlist.size() > 0) {
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gettimeofday(&now, 0);
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tm.tv_sec = tm.tv_usec = 0l;
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Timer *timer = m_timerlist.front();
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tm.tv_sec = timer->getStartTime().tv_sec +
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timer->getTimeout().tv_sec - now.tv_sec;
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tm.tv_usec = timer->getStartTime().tv_usec +
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timer->getTimeout().tv_usec - now.tv_usec;
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while (tm.tv_usec >= 1000000) {
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tm.tv_usec -= 1000000;
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while (tm.tv_usec < 0) {
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tm.tv_usec += 1000000;
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select(fd + 1, &rfds, 0, 0, timeout);
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TimerList::iterator it;
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// someone set the date of the machine BACK
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// so we have to adjust the start_time
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static time_t last_time = time(0);
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if (time(0) < last_time) {
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time_t delta = time(0) - last_time;
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for (it = m_timerlist.begin(); it != m_timerlist.end(); it++) {
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(*it)->m_start.tv_sec += delta;
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// check for timer timeout
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gettimeofday(&now, 0);
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//must check end ...the timer might remove
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//it self from the list (should be fixed in the future)
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for(it = m_timerlist.begin(); it != m_timerlist.end(); ) {
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//This is to make sure we don't get an invalid iterator
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//when we do fireTimeout
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tm.tv_sec = t.getStartTime().tv_sec +
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t.getTimeout().tv_sec;
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tm.tv_usec = t.getStartTime().tv_usec +
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t.getTimeout().tv_usec;
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if (((now.tv_sec < tm.tv_sec) ||
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(now.tv_sec == tm.tv_sec && now.tv_usec < tm.tv_usec)))
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// restart the current timer so that the start time is updated
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// Note that this mustn't be done if we're deleting the
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// entry from the list, so therefore it's not in the update
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// section of the for loop
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// Since the default stop behaviour results in the timer
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// being removed, we must remove it here, so that the iterator
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// lives well. Another option would be to add it to another
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// list, and then just go through that list and stop them all.
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it = m_timerlist.erase(it);
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void Timer::addTimer(Timer *timer) {
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TimerList::iterator it = m_timerlist.begin();
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TimerList::iterator it_end = m_timerlist.end();
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for (; it != it_end; ++it, ++index) {
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if (((*it)->getTimeout().tv_sec > timer->getTimeout().tv_sec) ||
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(((*it)->getTimeout().tv_sec == timer->getTimeout().tv_sec) &&
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((*it)->getTimeout().tv_usec >= timer->getTimeout().tv_usec))) {
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m_timerlist.insert(it, timer);
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void Timer::removeTimer(Timer *timer) {
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m_timerlist.remove(timer);
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}; // end namespace FbTk
added
removed
src/FbTk/Timer.cc
