/**
* Resets a specific timer
*
* @param t the new timer
* @param timer_type @see sip_timer_type
*/
void sip_trans::reset_timer(timer* t, unsigned int timer_type)
{
timer** tp = fetch_timer(timer_type,timers);
if(*tp != NULL){
DBG("Clearing old timer of type %c\n",timer_name((*tp)->type));
wheeltimer::instance()->remove_timer(*tp);
}
*tp = t;
if(t)
wheeltimer::instance()->insert_timer(t);
}
/**
* Fetches a specific timer
*
* @param timer_type @see sip_timer_type
*/
trans_timer* sip_trans::get_timer(unsigned int timer_type)
{
return *fetch_timer(timer_type,timers);
}
/**
* Tells if a specific timer is set
*
* @param timer_type @see sip_timer_type
*/
bool sip_trans::is_timer_set(unsigned int timer_type)
{
return (*fetch_timer(timer_type,timers) != NULL);
}
PyObject*
semaphore_acquire(SemaphoreObject *self, PyObject *blocking, long timeout)
{
PyObject *res = NULL;
PyObject *current = NULL;
PyObject *timer = NULL;
LoopObject *loop = NULL;
DEBUG("self:%p timeout:%ld counter:%d", self, timeout, self->counter);
if (self->counter > 0) {
self->counter--;
DEBUG("counter decr self:%p", self);
Py_RETURN_TRUE;
} else if(PyObject_Not(blocking)) {
Py_RETURN_FALSE;
}
loop = get_event_loop();
if (loop == NULL) {
return NULL;
}
current = greenlet_getcurrent();
Py_XDECREF(current);
if (current == NULL) {
return NULL;
}
timer = loop_set_timeout(loop, timeout, NULL);
if (timer == NULL) {
return NULL;
}
if (PySet_Add(self->waiters, current) == -1) {
((TimerObject*)timer)->cancelled = 1;
return NULL;
}
while (self->counter <= 0) {
res = loop_switch(loop);
Py_XDECREF(res);
if (res == NULL) {
if (PyErr_ExceptionMatches(TimeoutException)) {
RDEBUG("catch TimeoutException self:%p", self);
if (fetch_timer() == timer) {
PyErr_Clear();
res = Py_False;
goto fin;
}
}
goto fin;
}
}
self->counter--;
res = Py_True;
fin:
((TimerObject*)timer)->cancelled = 1;
if (PySet_Discard(self->waiters, current) == -1) {
res = NULL;
}
Py_DECREF(timer);
Py_XINCREF(res);
return res;
}
