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

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2
   3 #ifdef    HAVE_CONFIG_H
   4 #  include "../config.h"
   5 #endif // HAVE_CONFIG_H
   6
   7 #include "basedisplay.hh"
   8 #include "timer.hh"
   9 #include "util.hh"
  10
  11 BTimer::BTimer(TimerQueueManager *m, TimeoutHandler *h) {
  12   manager = m;
  13   handler = h;
  14
  15   recur = timing = False;
  16 }
  17
  18
  19 BTimer::~BTimer(void) {
  20   if (timing) stop();
  21 }
  22
  23
  24 void BTimer::setTimeout(long t) {
  25   _timeout.tv_sec = t / 1000;
  26   _timeout.tv_usec = t % 1000;
  27   _timeout.tv_usec *= 1000;
  28 }
  29
  30
  31 void BTimer::setTimeout(const timeval &t) {
  32   _timeout.tv_sec = t.tv_sec;
  33   _timeout.tv_usec = t.tv_usec;
  34 }
  35
  36
  37 void BTimer::start(void) {
  38   gettimeofday(&_start, 0);
  39
  40   if (! timing) {
  41     timing = True;
  42     manager->addTimer(this);
  43   }
  44 }
  45
  46
  47 void BTimer::stop(void) {
  48   timing = False;
  49
  50   manager->removeTimer(this);
  51 }
  52
  53
  54 void BTimer::halt(void) {
  55   timing = False;
  56 }
  57
  58
  59 void BTimer::fireTimeout(void) {
  60   if (handler)
  61     handler->timeout();
  62 }
  63
  64
  65 timeval BTimer::timeRemaining(const timeval &tm) const {
  66   timeval ret = endpoint();
  67
  68   ret.tv_sec  -= tm.tv_sec;
  69   ret.tv_usec -= tm.tv_usec;
  70
  71   return normalizeTimeval(ret);
  72 }
  73
  74
  75 timeval BTimer::endpoint(void) const {
  76   timeval ret;
  77
  78   ret.tv_sec = _start.tv_sec + _timeout.tv_sec;
  79   ret.tv_usec = _start.tv_usec + _timeout.tv_usec;
  80
  81   return normalizeTimeval(ret);
  82 }
  83
  84
  85 bool BTimer::shouldFire(const timeval &tm) const {
  86   timeval end = endpoint();
  87
  88   return ! ((tm.tv_sec < end.tv_sec) ||
  89             (tm.tv_sec == end.tv_sec && tm.tv_usec < end.tv_usec));
  90 }