mirror of
https://github.com/TigerVNC/tigervnc.git
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47ed8d321c
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519
106 lines
2.4 KiB
C++
106 lines
2.4 KiB
C++
/* Copyright (C) 2002-2003 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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//
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// Timer.cxx
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//
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#include "Timer.h"
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static Timer* timers;
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void Timer::callTimers()
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{
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struct timeval now;
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gettimeofday(&now, 0);
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while (timers) {
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Timer* timer = timers;
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if (timer->before(now)) {
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timers = timers->next;
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timer->cb->timerCallback(timer);
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} else {
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break;
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}
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}
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}
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bool Timer::getTimeout(struct timeval* timeout)
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{
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if (!timers) return false;
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Timer* timer = timers;
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struct timeval now;
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gettimeofday(&now, 0);
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if (timer->before(now)) {
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timeout->tv_sec = 0;
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timeout->tv_usec = 0;
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return true;
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}
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timeout->tv_sec = timer->tv.tv_sec - now.tv_sec;
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if (timer->tv.tv_usec < now.tv_usec) {
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timeout->tv_usec = timer->tv.tv_usec + 1000000 - now.tv_usec;
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timeout->tv_sec--;
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} else {
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timeout->tv_usec = timer->tv.tv_usec - now.tv_usec;
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}
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return true;
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}
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Timer::Timer(TimerCallback* cb_) : cb(cb_) {}
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Timer::~Timer()
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{
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cancel();
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}
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void Timer::reset(int ms) {
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cancel();
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gettimeofday(&tv, 0);
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tv.tv_sec += ms / 1000;
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tv.tv_usec += (ms % 1000) * 1000;
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if (tv.tv_usec > 1000000) {
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tv.tv_sec += 1;
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tv.tv_usec -= 1000000;
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}
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Timer** timerPtr;
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for (timerPtr = &timers; *timerPtr; timerPtr = &(*timerPtr)->next) {
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if (before((*timerPtr)->tv)) {
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next = *timerPtr;
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*timerPtr = this;
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break;
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}
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}
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if (!*timerPtr) {
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next = 0;
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*timerPtr = this;
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}
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}
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void Timer::cancel() {
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for (Timer** timerPtr = &timers; *timerPtr; timerPtr = &(*timerPtr)->next) {
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if (*timerPtr == this) {
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*timerPtr = (*timerPtr)->next;
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break;
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}
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}
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}
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bool Timer::isSet() {
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for (Timer* timer = timers; timer; timer = timer->next)
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if (timer == this) return true;
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return false;
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}
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