diff options
Diffstat (limited to 'src/timer.cc')
| -rw-r--r-- | src/timer.cc | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/src/timer.cc b/src/timer.cc index 76fb022d..9066fd01 100644 --- a/src/timer.cc +++ b/src/timer.cc @@ -4,12 +4,13 @@ # include "../config.h" #endif // HAVE_CONFIG_H +#include "otk/display.hh" #include "timer.hh" #include "util.hh" namespace ob { -BTimer::BTimer(TimerQueueManager *m, TimeoutHandler *h) { +BTimer::BTimer(OBTimerQueueManager *m, TimeoutHandler *h) { manager = m; handler = h; @@ -90,4 +91,60 @@ bool BTimer::shouldFire(const timeval &tm) const { (tm.tv_sec == end.tv_sec && tm.tv_usec < end.tv_usec)); } + +void OBTimerQueueManager::go() +{ + fd_set rfds; + timeval now, tm, *timeout = (timeval *) 0; + + const int xfd = ConnectionNumber(otk::OBDisplay::display); + + FD_ZERO(&rfds); + FD_SET(xfd, &rfds); // break on any x events + + if (! timerList.empty()) { + const BTimer* const timer = timerList.top(); + + gettimeofday(&now, 0); + tm = timer->timeRemaining(now); + + timeout = &tm; + } + + select(xfd + 1, &rfds, 0, 0, timeout); + + // check for timer timeout + gettimeofday(&now, 0); + + // there is a small chance for deadlock here: + // *IF* the timer list keeps getting refreshed *AND* the time between + // timer->start() and timer->shouldFire() is within the timer's period + // then the timer will keep firing. This should be VERY near impossible. + while (! timerList.empty()) { + BTimer *timer = timerList.top(); + if (! timer->shouldFire(now)) + break; + + timerList.pop(); + + timer->fireTimeout(); + timer->halt(); + if (timer->isRecurring()) + timer->start(); + } +} + + +void OBTimerQueueManager::addTimer(BTimer *timer) +{ + assert(timer); + timerList.push(timer); +} + +void OBTimerQueueManager::removeTimer(BTimer* timer) +{ + assert(timer); + timerList.release(timer); +} + } |
