diff options
Diffstat (limited to 'src/sim/eventq.hh')
| -rw-r--r-- | src/sim/eventq.hh | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/sim/eventq.hh b/src/sim/eventq.hh index c390d2155..394fd4d8d 100644 --- a/src/sim/eventq.hh +++ b/src/sim/eventq.hh @@ -606,6 +606,21 @@ class EventQueue : public Serializable void handleAsyncInsertions(); /** + * Function to signal that the event loop should be woken up because + * an event has been scheduled by an agent outside the gem5 event + * loop(s) whose event insertion may not have been noticed by gem5. + * This function isn't needed by the usual gem5 event loop but may + * be necessary in derived EventQueues which host gem5 onto other + * schedulers. + * + * @param when Time of a delayed wakeup (if known). This parameter + * can be used by an implementation to schedule a wakeup in the + * future if it is sure it will remain active until then. + * Or it can be ignored and the event queue can be woken up now. + */ + virtual void wakeup(Tick when = (Tick)-1) { } + + /** * function for replacing the head of the event queue, so that a * different set of events can run without disturbing events that have * already been scheduled. Already scheduled events can be processed @@ -635,6 +650,8 @@ class EventQueue : public Serializable virtual void serialize(std::ostream &os); virtual void unserialize(Checkpoint *cp, const std::string §ion); #endif + + virtual ~EventQueue() { } }; void dumpMainQueue(); @@ -693,6 +710,11 @@ class EventManager eventq->reschedule(event, when, always); } + void wakeupEventQueue(Tick when = (Tick)-1) + { + eventq->wakeup(when); + } + void setCurTick(Tick newVal) { eventq->setCurTick(newVal); } }; |