Dogcows Code - chaz/openbox/blob - src/Timer.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2 // Timer.cc for Blackbox - An X11 Window Manager
   3 // Copyright (c) 2001 - 2002 Sean 'Shaleh' Perry <shaleh@debian.org>
   4 // Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining a
   7 // copy of this software and associated documentation files (the "Software"),
   8 // to deal in the Software without restriction, including without limitation
   9 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10 // and/or sell copies of the Software, and to permit persons to whom the
  11 // Software is furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in
  14 // all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22 // DEALINGS IN THE SOFTWARE.
  23
  24 #ifdef    HAVE_CONFIG_H
  25 #  include "../config.h"
  26 #endif // HAVE_CONFIG_H
  27
  28 #include "BaseDisplay.hh"
  29 #include "Timer.hh"
  30 #include "Util.hh"
  31
  32 BTimer::BTimer(TimerQueueManager *m, TimeoutHandler *h) {
  33   manager = m;
  34   handler = h;
  35
  36   recur = timing = False;
  37 }
  38
  39
  40 BTimer::~BTimer(void) {
  41   if (timing) stop();
  42 }
  43
  44
  45 void BTimer::setTimeout(long t) {
  46   _timeout.tv_sec = t / 1000;
  47   _timeout.tv_usec = t % 1000;
  48   _timeout.tv_usec *= 1000;
  49 }
  50
  51
  52 void BTimer::setTimeout(const timeval &t) {
  53   _timeout.tv_sec = t.tv_sec;
  54   _timeout.tv_usec = t.tv_usec;
  55 }
  56
  57
  58 void BTimer::start(void) {
  59   gettimeofday(&_start, 0);
  60
  61   if (! timing) {
  62     timing = True;
  63     manager->addTimer(this);
  64   }
  65 }
  66
  67
  68 void BTimer::stop(void) {
  69   timing = False;
  70
  71   manager->removeTimer(this);
  72 }
  73
  74
  75 void BTimer::halt(void) {
  76   timing = False;
  77 }
  78
  79
  80 void BTimer::fireTimeout(void) {
  81   if (handler)
  82     handler->timeout();
  83 }
  84
  85
  86 timeval BTimer::timeRemaining(const timeval &tm) const {
  87   timeval ret = endpoint();
  88
  89   ret.tv_sec  -= tm.tv_sec;
  90   ret.tv_usec -= tm.tv_usec;
  91
  92   return normalizeTimeval(ret);
  93 }
  94
  95
  96 timeval BTimer::endpoint(void) const {
  97   timeval ret;
  98
  99   ret.tv_sec = _start.tv_sec + _timeout.tv_sec;
 100   ret.tv_usec = _start.tv_usec + _timeout.tv_usec;
 101
 102   return normalizeTimeval(ret);
 103 }
 104
 105
 106 bool BTimer::shouldFire(const timeval &tm) const {
 107   timeval end = endpoint();
 108
 109   return !((tm.tv_sec < end.tv_sec) ||
 110            (tm.tv_sec == end.tv_sec && tm.tv_usec < end.tv_usec));
 111 }