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 "timer.hh"
   8 #include "util.hh"
   9
  10 namespace ob {
  11
  12 BTimer::BTimer(TimerQueueManager *m, TimeoutHandler *h) {
  13   manager = m;
  14   handler = h;
  15
  16   recur = timing = False;
  17 }
  18
  19
  20 BTimer::~BTimer(void) {
  21   if (timing) stop();
  22 }
  23
  24
  25 void BTimer::setTimeout(long t) {
  26   _timeout.tv_sec = t / 1000;
  27   _timeout.tv_usec = t % 1000;
  28   _timeout.tv_usec *= 1000;
  29 }
  30
  31
  32 void BTimer::setTimeout(const timeval &t) {
  33   _timeout.tv_sec = t.tv_sec;
  34   _timeout.tv_usec = t.tv_usec;
  35 }
  36
  37
  38 void BTimer::start(void) {
  39   gettimeofday(&_start, 0);
  40
  41   if (! timing) {
  42     timing = True;
  43     manager->addTimer(this);
  44   }
  45 }
  46
  47
  48 void BTimer::stop(void) {
  49   timing = False;
  50
  51   manager->removeTimer(this);
  52 }
  53
  54
  55 void BTimer::halt(void) {
  56   timing = False;
  57 }
  58
  59
  60 void BTimer::fireTimeout(void) {
  61   if (handler)
  62     handler->timeout();
  63 }
  64
  65
  66 timeval BTimer::timeRemaining(const timeval &tm) const {
  67   timeval ret = endpoint();
  68
  69   ret.tv_sec  -= tm.tv_sec;
  70   ret.tv_usec -= tm.tv_usec;
  71
  72   return normalizeTimeval(ret);
  73 }
  74
  75
  76 timeval BTimer::endpoint(void) const {
  77   timeval ret;
  78
  79   ret.tv_sec = _start.tv_sec + _timeout.tv_sec;
  80   ret.tv_usec = _start.tv_usec + _timeout.tv_usec;
  81
  82   return normalizeTimeval(ret);
  83 }
  84
  85
  86 bool BTimer::shouldFire(const timeval &tm) const {
  87   timeval end = endpoint();
  88
  89   return ! ((tm.tv_sec < end.tv_sec) ||
  90             (tm.tv_sec == end.tv_sec && tm.tv_usec < end.tv_usec));
  91 }
  92
  93 }