Timer.cc // Timer.cc for FbTk - Fluxbox Toolkit // Copyright (c) 2003 Henrik Kinnunen (fluxgen at users.sourceforge.net) // // Timer.cc for Blackbox - An X11 Window Manager // Copyright (c) 1997 - 2000 Brad Hughes (bhughes at 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. #include "Timer.hh" #include "Command.hh" //use GNU extensions #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif // _GNU_SOURCE #ifdef HAVE_CONFIG_H #include "config.h" #endif // HAVE_CONFIG_H #include <sys/time.h> #include <sys/types.h> #include <unistd.h> #include <cassert> namespace FbTk { Timer::TimerList Timer::m_timerlist; Timer::Timer():m_timing(false), m_once(false) { } Timer::Timer(RefCount<Command> &handler): m_handler(handler), m_timing(false), m_once(false) { } Timer::~Timer() { if (isTiming()) stop(); } void Timer::setTimeout(time_t t) { m_timeout.tv_sec = t / 1000; m_timeout.tv_usec = t; m_timeout.tv_usec -= (m_timeout.tv_sec * 1000); m_timeout.tv_usec *= 1000; } void Timer::setTimeout(timeval t) { m_timeout.tv_sec = t.tv_sec; m_timeout.tv_usec = t.tv_usec; } void Timer::setCommand(RefCount<Command> &cmd) { m_handler = cmd; } void Timer::start() { gettimeofday(&m_start, 0); if (! m_timing) { m_timing = true; addTimer(this); //add us to the list } } void Timer::stop() { m_timing = false; removeTimer(this); //remove us from the list } void Timer::fireTimeout() { if (*m_handler) m_handler->execute(); } void Timer::updateTimers(int fd) { fd_set rfds; timeval now, tm, *timeout = 0; FD_ZERO(&rfds); FD_SET(fd, &rfds); if (m_timerlist.size() > 0) { gettimeofday(&now, 0); tm.tv_sec = tm.tv_usec = 0l; Timer *timer = m_timerlist.front(); tm.tv_sec = timer->getStartTime().tv_sec + timer->getTimeout().tv_sec - now.tv_sec; tm.tv_usec = timer->getStartTime().tv_usec + timer->getTimeout().tv_usec - now.tv_usec; while (tm.tv_usec >= 1000000) { tm.tv_sec++; tm.tv_usec -= 1000000; } while (tm.tv_usec < 0) { if (tm.tv_sec > 0) { tm.tv_sec--; tm.tv_usec += 1000000; } else { tm.tv_usec = 0; break; } } timeout = &tm; } select(fd + 1, &rfds, 0, 0, timeout); // check for timer timeout gettimeofday(&now, 0); TimerList::iterator it = m_timerlist.begin(); //must check end ...the timer might remove //it self from the list (should be fixed in the future) for(; it != m_timerlist.end(); ++it) { //This is to make sure we don't get an invalid iterator //when we do fireTimeout Timer &t = *(*it); tm.tv_sec = t.getStartTime().tv_sec + t.getTimeout().tv_sec; tm.tv_usec = t.getStartTime().tv_usec + t.getTimeout().tv_usec; if ((now.tv_sec < tm.tv_sec) || (now.tv_sec == tm.tv_sec && now.tv_usec < tm.tv_usec)) break; t.fireTimeout(); // restart the current timer so that the start time is updated if (! t.doOnce()) t.start(); else { t.stop(); it--; } } } void Timer::addTimer(Timer *timer) { assert(timer); TimerList::iterator it = m_timerlist.begin(); TimerList::iterator it_end = m_timerlist.end(); int index = 0; for (; it != it_end; ++it, ++index) { if (((*it)->getTimeout().tv_sec > timer->getTimeout().tv_sec) || (((*it)->getTimeout().tv_sec == timer->getTimeout().tv_sec) && ((*it)->getTimeout().tv_usec >= timer->getTimeout().tv_usec))) { break; } } m_timerlist.insert(it, timer); } void Timer::removeTimer(Timer *timer) { assert(timer); m_timerlist.remove(timer); } }; // end namespace FbTk Fluxbox CVS-Jan-2003
Got comments about the page? Send them to webmaster. If you have general Fluxbox related questions ask them on our irc channel or mailing lists. Show Source Designed by aLEczapKA