- Add method to set a request state

- Work on step_forward() a little more
- Add extra check inside dynamic_thread()::decrease_remaining_time()


git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@717 3ecf2c5c-341e-0410-92b4-d18e462d057c
This commit is contained in:
tchernobog 2006-07-04 23:09:10 +00:00
parent dd4898ca55
commit 22af0b9cdd
5 changed files with 49 additions and 24 deletions

View File

@ -90,6 +90,15 @@ DynamicRequest::get_state() const
} }
Request::state
DynamicRequest::set_state(state new_state)
{
state temp = _state;
_state = new_state;
return temp;
}
void void
DynamicRequest::serialize(SerializeVisitor& translator) const DynamicRequest::serialize(SerializeVisitor& translator) const
{ {

View File

@ -53,6 +53,7 @@ namespace sgpem
unsigned int get_instant() const; unsigned int get_instant() const;
state get_state() const; state get_state() const;
state set_state(state new_state);
void serialize(SerializeVisitor& translator) const; void serialize(SerializeVisitor& translator) const;

View File

@ -122,7 +122,10 @@ DynamicThread::get_elapsed_time() const
void void
DynamicThread::decrease_remaining_time() DynamicThread::decrease_remaining_time()
{ {
_ran_for++; // strict check for us to better debug scheduler
assert(_ran_for < get_total_cpu_time());
if(_ran_for < get_total_cpu_time())
_ran_for++;
} }
int int

View File

@ -77,7 +77,7 @@ namespace sgpem
std::vector<DynamicRequest*> _dynamic_requests; std::vector<DynamicRequest*> _dynamic_requests;
DynamicProcess* _parent; DynamicProcess* _parent;
int _ran_for; unsigned int _ran_for;
int _last_acquisition; int _last_acquisition;
int _last_release; int _last_release;
}; };

View File

@ -68,7 +68,7 @@ static void prepare_ready_queue(ConcreteEnvironment& snapshot,
it != all_threads.end(); it++) it != all_threads.end(); it++)
{ {
if((*it)->get_state() == Schedulable::state_ready) if((*it)->get_state() == Schedulable::state_ready)
all_threads.push_back(*it); queue.append(**it);
} }
} }
@ -179,20 +179,27 @@ Scheduler::step_forward(History& history, Policy& cpu_policy) throw(UserInterrup
simulation_ended = false; simulation_ended = false;
} }
// 4a. Look for exhausted requests for the running thread
// ---------- FIXME ----------------
// What to do now if the simulation ended?
// 4a. Requests for the running thread exhausted
if(running_thread != NULL) { if(running_thread != NULL) {
Requests& reqs = running_thread->get_dynamic_requests(); Requests& reqs = running_thread->get_dynamic_requests();
if(running_thread->get_state() == Schedulable::state_terminated) bool running_terminated = running_thread->get_state() == Schedulable::state_terminated;
for(Requests::iterator it = reqs.begin(); it != reqs.end(); it++)
{ {
// for(Requests::iterator it = reqs.begin(); DynamicRequest& rq = **it;
if(rq.get_state() == Request::state_allocated)
/* decrease remaining time for request */;
// ASK MARCO : can we implement request::decrease_remaining_time() as
// a function that calls decrease_remaining_time() on all its subrequests,
// that in turn never go with a remaining time < 0?
// If the running thread terminated uncoditionally put them in exhausted state
if(running_terminated /* || rq.get_remaining_time() == 0 */ )
rq.set_state(Request::state_exhausted);
} }
// FIXME we lack a way to tell and/or remember for how // FIXME we lack a way to tell and/or remember for how
// much a subrequest has been being fulfilled // much a subrequest has been being fulfilled
// THIS MEANS this part is NOT complete // THIS MEANS this part is NOT complete
@ -205,18 +212,23 @@ Scheduler::step_forward(History& history, Policy& cpu_policy) throw(UserInterrup
// even if it was terminated // even if it was terminated
} } //~ if running_thread != NULL
// / // ---------- FIXME ----------------
// / // What to do now if the simulation ended?
// /
// (I'M HERE) < * * * * * * * * * * *
// \ /* /
// \ * /
// \ * /
// * (I'M HERE) < * * * * * * * * * * *
// (is it visible enough for you?) * \
* \
* \
*
* (is it visible enough for you?)
*/
prepare_ready_queue(*new_snapshot, all_threads); prepare_ready_queue(*new_snapshot, all_threads);