1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
4 # include "../config.h"
5 #endif // HAVE_CONFIG_H
10 #ifdef HAVE_SYS_SELECT_H
11 # include <sys/select.h>
14 # include <sys/types.h>
16 # endif // HAVE_UNISTD_H
17 #endif // HAVE_SYS_SELECT_H
21 timeval Timer::_nearest_timeout, Timer::_now;
22 Timer::TimerQ Timer::_q;
24 void Timer::timevalAdd(timeval &a, long msec)
26 a.tv_sec += msec / 1000;
27 a.tv_usec += (msec % 1000) * 1000;
28 a.tv_sec += a.tv_usec / 1000000;
32 bool Timer::nearestTimeout(struct timeval &tm)
36 tm.tv_sec = _nearest_timeout.tv_sec - _now.tv_sec;
37 tm.tv_usec = _nearest_timeout.tv_usec - _now.tv_usec;
39 while (tm.tv_usec < 0) {
40 tm.tv_usec += 1000000;
43 tm.tv_sec += tm.tv_usec / 1000000;
44 tm.tv_usec %= 1000000;
51 void Timer::dispatchTimers(bool wait)
58 gettimeofday(&_now, NULL);
59 _nearest_timeout = _now;
60 _nearest_timeout.tv_sec += 10000;
64 /* since we overload the destructor to keep from removing from the middle of
65 the priority queue, set _del_me, we have to do our real delete in here.
73 // the queue is sorted, so if this timer shouldn't fire, none are ready
74 _nearest_timeout = curr->_timeout;
75 if (!timercmp(&_now, &_nearest_timeout, >))
78 /* we set the last fired time to delay msec after the previous firing, then
79 re-insert. timers maintain their order and may trigger more than once if
80 they've waited more than one delay's worth of time.
83 timevalAdd(curr->_last, curr->_delay);
84 curr->_action(curr->_data);
85 timevalAdd(curr->_timeout, curr->_delay);
90 // wait for the nearest trigger, or for X to do something interesting
91 fd = ConnectionNumber(**display);
94 if (nearestTimeout(next))
95 select(fd + 1, &selset, NULL, NULL, &next);
97 select(fd + 1, &selset, NULL, NULL, NULL);
101 Timer::Timer(long delay, Timer::TimeoutHandler action, void *data)
109 timevalAdd(_timeout, delay);
113 void Timer::operator delete(void *self)
120 void Timer::realDelete(Timer *me)
125 void Timer::initialize(void)
127 gettimeofday(&_now, NULL);
128 _nearest_timeout.tv_sec = 100000;
129 _nearest_timeout.tv_usec = 0;
132 void Timer::destroy(void)
135 realDelete(_q.top());