//............................................................................
// [SWC] Like GW in QF-C, make this routine return if all events are consumed.
// Remove QF::onIdle().
void QF::run(void) {
QF::onStartup(); // startup callback
for (;;) { // the background loop
QF_INT_LOCK_KEY_
QF_INT_LOCK_();
if (QF_readySet_.notEmpty()) {
uint8_t p = QF_readySet_.findMax();
QActive *a = active_[p];
QF_INT_UNLOCK_();
QEvent const *e = a->get_(); // get the next event for this AO
a->dispatch(e); // dispatch evt to the HSM
gc(e); // determine if event is garbage and collect it if so
}
else {
QF_INT_UNLOCK_();
break;
}
}
}
void QK_scheduleExt_(void) {
#else
void QK_scheduleExt_(QF_INT_KEY_TYPE intLockKey_) {
#endif
// the QK scheduler must be called at task level only
Q_REQUIRE(QK_intNest_ == (uint8_t)0);
// determine the priority of the highest-priority task ready to run
uint8_t p = QK_readySet_.findMax();
#ifdef QK_NO_MUTEX
if (p > QK_currPrio_) { // do we have a preemption?
#else // QK priority-ceiling mutexes allowed
if ((p > QK_currPrio_) && (p > QK_ceilingPrio_)) {
#endif
uint8_t pin = QK_currPrio_; // save the initial priority
QActive *a;
#ifdef QK_TLS // thread-local storage used?
uint8_t pprev = pin;
#endif
#ifdef QK_EXT_SAVE // extended context-switch used?
if (pin != (uint8_t)0) { // no extended context for the idle loop
a = QF::active_[pin]; // the pointer to the preempted AO
QK_EXT_SAVE(a); // save the extended context
}
#endif
do {
QEvent const *e;
a = QF::active_[p]; // obtain the pointer to the AO
QK_currPrio_ = p; // this becomes the current task priority
#ifdef QK_TLS // thread-local storage used?
if (p != pprev) { // are we changing threads?
QK_TLS(a); // switch new thread-local storage
pprev = p;
}
#endif
QS_BEGIN_NOLOCK_(QS_QK_SCHEDULE, QS::aoObj_, a)
QS_TIME_(); // timestamp
QS_U8_(p); // the priority of the active object
QS_U8_(pin); // the preempted priority
QS_END_NOLOCK_()
QK_INT_UNLOCK_(); // unlock the interrupts
e = a->get_(); // get the next event for this active object
a->dispatch(e); // dispatch e to the active object
QF::gc(e); // garbage collect the event, if necessary
QK_INT_LOCK_();
// determine the highest-priority AO ready to run
p = QK_readySet_.findMax();
#ifdef QK_NO_MUTEX
} while (p > pin); // is the new priority higher than initial?
#else // QK priority-ceiling mutexes allowed
} while ((p > pin) && (p > QK_ceilingPrio_));
#endif
QK_currPrio_ = pin; // restore the initial priority
#if defined(QK_TLS) || defined(QK_EXT_RESTORE)
if (pin != (uint8_t)0) { // no extended context for the idle loop
a = QF::active_[pin]; // the pointer to the preempted AO
#ifdef QK_TLS // thread-local storage used?
QK_TLS(a); // restore the original TLS
#endif
#ifdef QK_EXT_RESTORE // extended context-switch used?
QK_EXT_RESTORE(a); // restore the extended context
#endif
}
#endif
}
}
