- added scheduler and other incomplete backend classes
git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@319 3ecf2c5c-341e-0410-92b4-d18e462d057c
This commit is contained in:
parent
98cc6fb20b
commit
e2a0c3f248
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@ -51,6 +51,7 @@ sgpemv2_SOURCES = \
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graphical_terminal_io.cc \
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main.cc \
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main_window.cc \
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observer.cc \
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parse_opts.cc \
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start_gui.cc
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@ -49,18 +49,24 @@ libbackend_la_LDFLAGS = $(PYTHON_EXTRA_LDFLAGS) \
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libbackend_la_SOURCES = \
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history.cc \
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observed_subject.cc \
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policy.cc \
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policy_parameters.cc \
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process.cc \
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schedulable.cc \
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schedulable_list.cc \
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schedulable_status.cc \
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simulation_status.cc \
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scheduler.cc \
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slice.cc
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noinst_HEADERS = \
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history.hh \
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observed_subject.hh \
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policy.hh \
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policy_parameters.hh \
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process.hh \
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schedulable.hh \
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schedulable_list.hh \
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schedulable_status.hh \
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simulation_status.hh \
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scheduler.hh \
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slice.hh
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@ -26,56 +26,66 @@ using namespace memory;
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//History::instance; //static object
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History History::_instance(10); //dummy parameter
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/**
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The constructor sets _total_time_elapsed to -1: this permits to insert the INITIAL STATUS
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of the simulation which must begin at instant -1 and live for 1 instant.
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*/
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History::History(int) //private constructor. The parameter is discarded
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:_total_time_elapsed(0)
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:_total_time_elapsed(-1)
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{}
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History&
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History::getInstance()
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History::get_instance()
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{
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return _instance;
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}
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/*
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/**
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Returns a pointer to a copy of the SchedulableStatus object relative to this instant.
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It can be NULL if time is out of range or if the SimulationStatus object relative to
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this instant has no running entities.
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It can be NULL if time is out of range or if there are no running entities in the associated
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SchedulableList
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*/
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smart_ptr<const SchedulableStatus>
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History::get_scheduled_at(int time)
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History::get_scheduled_at(int time) const
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{
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if (time >= _total_time_elapsed || time < 0) //out of range
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return smart_ptr<const SchedulableStatus>(NULL);
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return get_simulation_status_at(time)->get_running();
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//look for a runing entity
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smart_ptr<const SchedulableList> p = get_simulation_status_at(time);
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for (int i = 0; i < p->size(); i++)
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if (p->get_item_at(i)->get_state() == SchedulableStatus::state_running)
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return smart_ptr<const SchedulableStatus>(new SchedulableStatus(*(p->get_item_at(i))));
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return smart_ptr<const SchedulableStatus>(NULL);
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}
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/**
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Returns a pointer to a copy of the SimulationStatus object relative to this instant or NULL
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if time is out of range.
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*/
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smart_ptr<const SimulationStatus>
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History::get_simulation_status_at(int time)
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smart_ptr<const SchedulableList>
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History::get_simulation_status_at(int time) const
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{
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if (time >= _total_time_elapsed || time < 0) //out of range
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return smart_ptr<const SimulationStatus>(NULL);
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if (time > _total_time_elapsed || time < 0) //out of range
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return smart_ptr<const SchedulableList>(NULL);
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int trascorso = 0;
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for(vector<Slice>::iterator i=_slices.begin(); i < _slices.end(); i++)
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if (time < trascorso + i->get_duration()) //FOUND!!
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return smart_ptr<const SimulationStatus>(new SimulationStatus(i->get_simulation_status()));
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else //Go on...
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trascorso += i->get_duration();
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int trascorso = -1;
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for(vector<Slice>::const_iterator i=_slices.begin(); i < _slices.end(); i++)
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if (time <= trascorso + i->get_duration()) //FOUND!!
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return smart_ptr<const SchedulableList>(new SchedulableList(*i->get_simulation_status()));
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else //Go on...
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trascorso += i->get_duration();
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//never reached
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return smart_ptr<const SimulationStatus>(NULL);
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//never reached if all slices are CONTIGUOUS (ans THIS shoul be!!)!!!
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return smart_ptr<const SchedulableList>(NULL);
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}
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int
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History::get_current_time()
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History::get_current_time() const
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{
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return _total_time_elapsed;
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}
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@ -85,10 +95,11 @@ History::get_current_time()
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Calls the method notify() in quality of ObservedSubject, updating all observers.
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*/
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void
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History::enqueue_slice(SimulationStatus status)
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History::enqueue_slice(const SchedulableList& status)
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{
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if(_slices.size() == 0){
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_slices.push_back(Slice(0, 1, status));
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if(_slices.size() == 0)
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{
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_slices.push_back(Slice(-1, 1, status));
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_total_time_elapsed = 1;
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notify();
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return;
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@ -96,10 +107,10 @@ History::enqueue_slice(SimulationStatus status)
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//check the last slice
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Slice& last = _slices[_slices.size()-1];
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if (last.get_simulation_status() == status) //increments the duration by ONE unit
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{
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last.set_duration(last.get_duration()+1);
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}
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if (last.get_simulation_status()->has_same_objects(status)) //increments the duration by ONE unit
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{
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last.set_duration(last.get_duration()+1);
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}
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else //insert a new slice CONTIGUOUS to the last one
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{
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_slices.push_back(Slice(last.get_started_at() + last.get_duration(), 1, status));
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@ -109,18 +120,26 @@ History::enqueue_slice(SimulationStatus status)
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}
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/**
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Removes all the informations about the simulation following the specified instant.
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Removes all the informations about the simulation following the specified instant.
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Ex. truncate_at(0); removes all scheduled slices
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Ex. truncate_at(-1); removes all scheduled slices and the initial status
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*/
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void
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History::truncate_at(int instant)
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{
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//reach the instant
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vector<Slice>::iterator i = _slices.begin();
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for (int k=0; k < instant; k++)
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i++;
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//replaces the current vector with the "trimmed" one.
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_slices = vector<Slice>(_slices.begin(),i);
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_total_time_elapsed = instant;
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vector<Slice>::iterator i = _slices.begin();
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//reach the instant
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while (i != _slices.end())
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if (i->get_started_at() < instant)
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i++;
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else
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{
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//replaces the current vector with the "trimmed" one.
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_slices = vector<Slice>(_slices.begin(),i);
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_total_time_elapsed = instant;
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return;
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}
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}
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@ -28,7 +28,7 @@
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#include "slice.hh"
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#include "observed_subject.hh"
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#include "simulation_status.hh"
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#include "schedulable_list.hh"
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#include "schedulable_status.hh"
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#include "../templates/smartp.hh"
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@ -47,16 +47,17 @@ namespace sgpem
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*/
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class History;
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class SG_DLLEXPORT History : public ObservedSubject {
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class SG_DLLEXPORT History : public ObservedSubject
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{
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public:
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memory::smart_ptr<const sgpem::SchedulableStatus> get_scheduled_at(int time);
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memory::smart_ptr<const sgpem::SimulationStatus> get_simulation_status_at(int time);
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int get_current_time();
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void enqueue_slice(sgpem::SimulationStatus status);
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void truncate_at(int instant);
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memory::smart_ptr<const sgpem::SchedulableStatus> get_scheduled_at(int time) const;
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memory::smart_ptr<const sgpem::SchedulableList> get_simulation_status_at(int time) const;
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int get_current_time() const;
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void enqueue_slice(const sgpem::SchedulableList& status);
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void truncate_at(int instant);
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static History& getInstance();
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static History& get_instance();
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private:
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History(int); //private constructor. The parameter is discarded
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@ -0,0 +1,25 @@
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// src/backend/policy.cc - Copyright 2005, 2006, University
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// of Padova, dept. of Pure and Applied
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// Mathematics
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//
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// This file is part of SGPEMv2.
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//
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// This is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// SGPEMv2 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with SGPEMv2; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include "policy.hh"
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using namespace std;
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using namespace sgpem;
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using namespace memory;
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@ -0,0 +1,51 @@
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// src/backend/policy.hh - Copyright 2005, 2006, University
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// of Padova, dept. of Pure and Applied
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// Mathematics
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//
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// This file is part of SGPEMv2.
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//
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// This is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// SGPEMv2 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with SGPEMv2; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#ifndef POLICY_HH
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#define POLICY_HH 1
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#include "config.h"
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#include "scheduler.hh"
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namespace sgpem
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{
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class Policy;
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/** \brief
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e' una Strategy che rappresenta un algoritmo di scheduling che implementa una politica
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di scheduling.
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*/
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class SG_DLLEXPORT Policy
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{
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public:
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void sort_queue(sgpem::Scheduler::event) {}
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bool is_pre_emptive() {return true;}
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int get_time_slice() {return 2;}
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private:
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};
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}//~ namespace sgpem
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#endif
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@ -0,0 +1,25 @@
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// src/backend/policy_parameters.cc - Copyright 2005, 2006, University
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// of Padova, dept. of Pure and Applied
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// Mathematics
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//
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// This file is part of SGPEMv2.
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//
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// This is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// SGPEMv2 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with SGPEMv2; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include "policy_parameters.hh"
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using namespace std;
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using namespace sgpem;
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@ -0,0 +1,62 @@
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// src/backend/policy_parameters.hh - Copyright 2005, 2006, University
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// of Padova, dept. of Pure and Applied
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// Mathematics
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//
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// This file is part of SGPEMv2.
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//
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// This is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// SGPEMv2 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with SGPEMv2; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#ifndef POLICY_PARAMETERS_HH
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#define POLICY_PARAMETERS_HH 1
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#include "config.h"
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namespace sgpem
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{
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class PolicyParameters;
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/** \brief
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*/
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class SG_DLLEXPORT PolicyParameters
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{
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public:
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template<typename T>
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class Parameter;
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private:
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};
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template<typename T>
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class PolicyParameters::Parameter
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{
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public:
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private:
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};
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}//~ namespace sgpem
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#endif
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@ -42,11 +42,11 @@ namespace sgpem
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Schedulable(const Glib::ustring& name, const unsigned int& arrival, const unsigned int& total, const int& priority);
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virtual ~Schedulable() = 0;
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virtual unsigned int get_arrival_time() const;
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virtual unsigned int get_arrival_time() const;
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unsigned int get_total_cpu_time() const;
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int get_priority() const;
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Glib::ustring get_name() const;
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virtual Glib::ustring get_type() const = 0;
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int get_priority() const;
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Glib::ustring get_name() const;
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virtual Glib::ustring get_type() const = 0;
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private:
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Glib::ustring _name;
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|
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@ -0,0 +1,200 @@
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// src/frontend/schedulable_list.cc - Copyright 2005, 2006, University
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// of Padova, dept. of Pure and Applied
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// Mathematics
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//
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// This file is part of SGPEMv2.
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//
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// This is free software; you can redistribute it and/or modify
|
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// it under the terms of the GNU General Public License as published by
|
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// the Free Software Foundation; either version 2 of the License, or
|
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// (at your option) any later version.
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//
|
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// SGPEMv2 is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with SGPEMv2; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include "schedulable_list.hh"
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using namespace sgpem;
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using namespace std;
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using namespace memory;
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SchedulableList::SchedulableList()
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{
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}
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/**
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Returns a pointer to the first element. If the queue is empty the NULL pointer will
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be returned.
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DON'T call delete on the returned pointer! Its destruction is managed by the queue.
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*/
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SchedulableStatus*
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SchedulableList::top()
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{
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if (_list.size() == 0)
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return NULL;
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return &_list.front();
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}
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/**
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Returns a pointer to the last element. If the queue is empty the NULL pointer will
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be returned.
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DON'T call delete on the returned pointer! Its destruction is managed by the queue.
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*/
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SchedulableStatus*
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SchedulableList::bottom()
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{
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if (_list.size() == 0)
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return NULL;
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return &_list.back();
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}
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/**
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Returns a pointer to the element at position "where". If the queue is empty or "where" is
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out of rangethe NULL pointer will be returned.
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DON'T call delete on the returned pointer! Its destruction is managed by the queue.
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*/
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SchedulableStatus*
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SchedulableList::get_item_at(const uint& where)
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{
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if (_list.size() == 0 || where >= _list.size())
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return NULL;
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list<SchedulableStatus>::iterator i = _list.begin();
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for (uint f=0; f < where; f++)
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i++;
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return &(*i);
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}
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const SchedulableStatus*
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SchedulableList::get_item_at(const uint& where) const
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{
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if (_list.size() == 0 || where >= _list.size())
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return NULL;
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list<SchedulableStatus>::const_iterator i = _list.begin();
|
||||
for (uint f=0; f < where; f++)
|
||||
i++;
|
||||
return &(*i);
|
||||
}
|
||||
|
||||
/**
|
||||
Returns the number of elements inserted into the queue.
|
||||
*/
|
||||
|
||||
uint
|
||||
SchedulableList::size() const
|
||||
{
|
||||
return _list.size();
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
SchedulableList::add_at_bottom(const SchedulableStatus& ss)
|
||||
{
|
||||
_list.push_back(ss);
|
||||
}
|
||||
|
||||
void
|
||||
SchedulableList::add_at_top(const SchedulableStatus& ss)
|
||||
{
|
||||
_list.push_front(ss);
|
||||
}
|
||||
|
||||
/**
|
||||
Removes an element from the list. Returns a smart pointer a copy of it or to NULL if
|
||||
"position" is out of range.
|
||||
|
||||
Ex. remove(0); removes the top of the list
|
||||
Ex. remove(size()-1) removes the bottom of the list
|
||||
*/
|
||||
smart_ptr<SchedulableStatus>
|
||||
SchedulableList::remove(const uint& position)
|
||||
{
|
||||
if (_list.size() == 0 || position >= _list.size())
|
||||
return smart_ptr<SchedulableStatus>(NULL);
|
||||
|
||||
//creates a copy of the first element
|
||||
smart_ptr<SchedulableStatus> sm = new SchedulableStatus(*top());
|
||||
//pops the first element
|
||||
_list.pop_front();
|
||||
//returns the copy
|
||||
return sm;
|
||||
}
|
||||
|
||||
/**
|
||||
Switches two elements in the queue. Returns FALSE if one of the indexes is out of range.
|
||||
*/
|
||||
bool
|
||||
SchedulableList::insert_at(const uint& which, const uint& where)
|
||||
{
|
||||
//out of range
|
||||
if (which >= _list.size() || where >= _list.size())
|
||||
return false;
|
||||
//nothing to do
|
||||
if (where == which)
|
||||
return true;
|
||||
|
||||
list<SchedulableStatus>::iterator i_where = _list.begin();
|
||||
list<SchedulableStatus>::iterator i_which = _list.begin();
|
||||
for (uint f=0; f < where; f++)
|
||||
i_where++;
|
||||
for (uint f=0; f < which; f++)
|
||||
i_which++;
|
||||
|
||||
//save the one to replace
|
||||
SchedulableStatus temp = *i_where;
|
||||
//replace them
|
||||
*i_where = *i_which;
|
||||
*i_which = temp;
|
||||
|
||||
return true;
|
||||
}
|
||||
/**
|
||||
Removes all elements
|
||||
*/
|
||||
|
||||
void
|
||||
SchedulableList::clear()
|
||||
{
|
||||
_list.clear();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
\brief Returns TRUE if the two objects have the same SchedulableStatus objects in the same order.
|
||||
*/
|
||||
bool
|
||||
SchedulableList::operator==(const SchedulableList& dx) const
|
||||
{
|
||||
return _list == dx._list;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
\brief Returns TRUE if the two objects have the same SchedulableStatus objects with NO ORDER IMPORTANCE.
|
||||
*/
|
||||
bool
|
||||
SchedulableList::has_same_objects(const SchedulableList& dx) const
|
||||
{
|
||||
if (_list.size() != dx._list.size())
|
||||
return false;
|
||||
|
||||
//check if dx has ALL and ONLY the elements holded by _list with no order importance
|
||||
for(list<SchedulableStatus>::const_iterator f=_list.begin(); f != _list.end(); f++)
|
||||
if (find(dx._list.begin(), dx._list.end(), *f) == dx._list.end()) //element NOT found!!
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
|
@ -0,0 +1,65 @@
|
|||
// src/backend/schedulable_list.hh - Copyright 2005, 2006, University
|
||||
// of Padova, dept. of Pure and Applied
|
||||
// Mathematics
|
||||
//
|
||||
// This file is part of SGPEMv2.
|
||||
//
|
||||
// This is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// SGPEMv2 is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with SGPEMv2; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
#ifndef SCHEDULABLE_LIST_HH
|
||||
#define SCHEDULABLE_LIST_HH 1
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <list>
|
||||
|
||||
#include "schedulable_status.hh"
|
||||
#include "../templates/smartp.hh"
|
||||
|
||||
|
||||
namespace sgpem
|
||||
{
|
||||
|
||||
class SchedulableList;
|
||||
|
||||
|
||||
|
||||
class SG_DLLEXPORT SchedulableList
|
||||
{
|
||||
public:
|
||||
SchedulableList();
|
||||
bool operator==(const SchedulableList&) const;
|
||||
bool has_same_objects(const SchedulableList& dx) const;
|
||||
|
||||
sgpem::SchedulableStatus* top();
|
||||
sgpem::SchedulableStatus* bottom();
|
||||
void add_at_bottom(const sgpem::SchedulableStatus&);
|
||||
void add_at_top(const sgpem::SchedulableStatus&);
|
||||
memory::smart_ptr<sgpem::SchedulableStatus> remove(const uint& position);
|
||||
bool insert_at(const uint&, const uint&);
|
||||
uint size() const;
|
||||
SchedulableStatus* get_item_at(const uint&);
|
||||
const SchedulableStatus* get_item_at(const uint&) const;
|
||||
void clear();
|
||||
|
||||
private:
|
||||
|
||||
std::list<sgpem::SchedulableStatus> _list;
|
||||
};
|
||||
|
||||
}//~ namespace sgpem
|
||||
|
||||
#endif //SCHEDULABLE_LIST_HH
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
// src/backend/schedulableStatus.cc - Copyright 2005, 2006, University
|
||||
// src/backend/schedulable_status.cc - Copyright 2005, 2006, University
|
||||
// of Padova, dept. of Pure and Applied
|
||||
// Mathematics
|
||||
//
|
||||
|
|
|
@ -0,0 +1,151 @@
|
|||
// src/backend/scheduler.cc - Copyright 2005, 2006, University
|
||||
// of Padova, dept. of Pure and Applied
|
||||
// Mathematics
|
||||
//
|
||||
// This file is part of SGPEMv2.
|
||||
//
|
||||
// This is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// SGPEMv2 is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with SGPEMv2; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
#include "policy.hh"
|
||||
#include "scheduler.hh"
|
||||
using namespace std;
|
||||
using namespace sgpem;
|
||||
using namespace memory;
|
||||
|
||||
//static object
|
||||
Scheduler Scheduler::_instance(10); //dummy parameter
|
||||
|
||||
/**
|
||||
|
||||
*/
|
||||
Scheduler::Scheduler(int) //private constructor. The parameter is discarded
|
||||
{}
|
||||
|
||||
Scheduler&
|
||||
Scheduler::get_instance()
|
||||
{
|
||||
return _instance;
|
||||
}
|
||||
|
||||
SchedulableList*
|
||||
Scheduler::get_ready_queue()
|
||||
{
|
||||
return &_ready_queue;
|
||||
}
|
||||
|
||||
/** \note E' fondamentale che questo metodo memorizzi localmente qualora la politica
|
||||
attuale sia a prerilascio o meno, e la durata del quanto di tempo, in quanto la politica
|
||||
e' libera di variare questi parametri a piacere durante l'esecuzione della simulazione
|
||||
*/
|
||||
void
|
||||
Scheduler::reset_status()
|
||||
{
|
||||
_ready_queue.clear();
|
||||
History::get_instance().truncate_at(0);
|
||||
// restore the policy
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
Scheduler::step_forward()
|
||||
{
|
||||
History& h = History::get_instance();
|
||||
//******************
|
||||
//check for arrivals and prepare the queue
|
||||
//******************
|
||||
smart_ptr<const SchedulableList> initial = h.get_simulation_status_at(h.get_current_time());
|
||||
_ready_queue.clear();
|
||||
|
||||
//adds running schedulable
|
||||
smart_ptr<const SchedulableStatus> running_ptr = h.get_scheduled_at(h.get_current_time());
|
||||
if (running_ptr)
|
||||
_ready_queue.add_at_top(*running_ptr);
|
||||
|
||||
//adds each new ready schedulable and sorts the queue
|
||||
for(uint i=0; i < initial->size(); i++)
|
||||
if (initial->get_item_at(i)->get_state() == SchedulableStatus::state_ready
|
||||
&& initial->get_item_at(i)->get_schedulable()->get_arrival_time() == h.get_current_time())
|
||||
{
|
||||
_ready_queue.add_at_bottom(*initial->get_item_at(i));
|
||||
|
||||
//pops the running schedulable only if the policy is not preemptive
|
||||
if (_policy->is_pre_emptive() == false && running_ptr)
|
||||
_ready_queue.remove(0);
|
||||
|
||||
// Sort the queue
|
||||
_policy->sort_queue(event_schedulable_arrival);
|
||||
|
||||
//restore the old running schedulable
|
||||
if (_policy->is_pre_emptive() == false && running_ptr)
|
||||
_ready_queue.add_at_top(*running_ptr);
|
||||
}
|
||||
|
||||
//****************
|
||||
// Check for termination
|
||||
//****************
|
||||
|
||||
if (running_ptr && running_ptr->get_cpu_time_left() == 0)
|
||||
{
|
||||
//there was a running schedulable and it's terminated. Remove it!
|
||||
for(uint i=0; i < _ready_queue.size(); i++)
|
||||
if (*_ready_queue.get_item_at(i) == *running_ptr)
|
||||
{
|
||||
_ready_queue.remove(i);
|
||||
break;
|
||||
}
|
||||
|
||||
//IF _ready_queue.size() == 0 sort_queue(...) is called but has no effect!!
|
||||
_policy->sort_queue(event_schedulable_termination);
|
||||
}
|
||||
|
||||
//*****************
|
||||
// Check for time slice
|
||||
//*****************
|
||||
if (_policy->get_time_slice() != numeric_limits<int>::max()) //time-slice
|
||||
_policy->sort_queue(event_end_time_slice);
|
||||
|
||||
//******************
|
||||
// Create the final list of schedulable
|
||||
//******************
|
||||
|
||||
SchedulableList final = _ready_queue;
|
||||
|
||||
if (final.size() != 0)
|
||||
//the firs element IS the running one (if != *running_ptr then there is a CONTEXT SWICH)
|
||||
final.get_item_at(0)->set_state(SchedulableStatus::state_running);
|
||||
|
||||
//all the others are ready
|
||||
for (uint i = 1; i < final.size(); i++)
|
||||
if (final.get_item_at(i)->get_state() == SchedulableStatus::state_running)
|
||||
final.get_item_at(i)->set_state(SchedulableStatus::state_ready);
|
||||
|
||||
//append blocked, future, terminated and the old running schedulables
|
||||
for (uint i = 0; i < initial->size(); i++)
|
||||
if(initial->get_item_at(i)->get_state() == SchedulableStatus::state_blocked
|
||||
|| initial->get_item_at(i)->get_state() == SchedulableStatus::state_future
|
||||
|| initial->get_item_at(i)->get_state() == SchedulableStatus::state_terminated
|
||||
|| (initial->get_item_at(i)->get_state() == SchedulableStatus::state_ready
|
||||
&& initial->get_item_at(i)->get_schedulable()->get_arrival_time() != h.get_current_time()) )
|
||||
final.add_at_bottom(*initial->get_item_at(i));
|
||||
|
||||
h.enqueue_slice(final);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,73 @@
|
|||
// src/backend/scheduler.hh - Copyright 2005, 2006, University
|
||||
// of Padova, dept. of Pure and Applied
|
||||
// Mathematics
|
||||
//
|
||||
// This file is part of SGPEMv2.
|
||||
//
|
||||
// This is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// SGPEMv2 is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with SGPEMv2; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
#ifndef SCHEDULER_HH
|
||||
#define SCHEDULER_HH 1
|
||||
namespace sgpem
|
||||
{
|
||||
class Policy;
|
||||
}
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <limits>
|
||||
|
||||
|
||||
#include "observed_subject.hh"
|
||||
#include "history.hh"
|
||||
#include "schedulable_list.hh"
|
||||
|
||||
namespace sgpem
|
||||
{
|
||||
class Scheduler;
|
||||
|
||||
/** \brief
|
||||
|
||||
*/
|
||||
|
||||
class SG_DLLEXPORT Scheduler : public ObservedSubject
|
||||
{
|
||||
public:
|
||||
enum event
|
||||
{
|
||||
event_schedulable_arrival,
|
||||
event_schedulable_termination,
|
||||
event_end_time_slice
|
||||
};
|
||||
|
||||
static Scheduler& get_instance();
|
||||
SchedulableList* get_ready_queue();
|
||||
void reset_status();
|
||||
void step_forward();
|
||||
|
||||
private:
|
||||
Scheduler(int); //private constructor. The parameter is discarded
|
||||
static Scheduler _instance;
|
||||
SchedulableList _ready_queue;
|
||||
Policy* _policy;
|
||||
};
|
||||
|
||||
}//~ namespace sgpem
|
||||
|
||||
#endif //SCHEDULER_HH
|
||||
|
||||
|
||||
|
||||
|
|
@ -1,95 +0,0 @@
|
|||
// src/backend/simulationStatus.cc - Copyright 2005, 2006, University
|
||||
// of Padova, dept. of Pure and Applied
|
||||
// Mathematics
|
||||
//
|
||||
// This file is part of SGPEMv2.
|
||||
//
|
||||
// This is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// SGPEMv2 is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with SGPEMv2; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
#include "simulation_status.hh"
|
||||
using namespace sgpem;
|
||||
using namespace std;
|
||||
using namespace memory;
|
||||
|
||||
/** \brief Creates the SimulationStatus object with no SchedulableStatus object
|
||||
|
||||
*/
|
||||
SimulationStatus::SimulationStatus()
|
||||
{
|
||||
}
|
||||
|
||||
SimulationStatus::SimulationStatus(const SimulationStatus& dx)
|
||||
:_set(dx._set)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
|
||||
/** \brief Adds a SchedulableStatus which represents a running Schedulable object.
|
||||
|
||||
Adds a SchedulableStatus which represents a running Schedulable object.
|
||||
Note that a copy of SchedulableStatus will be created
|
||||
*/
|
||||
void
|
||||
SimulationStatus::set_running(SchedulableStatus entity)
|
||||
{
|
||||
if (entity.get_state() != SchedulableStatus::state_running)
|
||||
entity.set_state(SchedulableStatus::state_running);
|
||||
_set.push_back(entity);
|
||||
}
|
||||
|
||||
/** \brief Looks for a running Schedulable object and returns ist state.
|
||||
Looks for a running Schedulable object and returns its state. There can be only
|
||||
one running schedulable object. If no running schedulable object is found will be returned
|
||||
the NULL pointer.
|
||||
*/
|
||||
|
||||
smart_ptr<SchedulableStatus>
|
||||
SimulationStatus::get_running()
|
||||
{
|
||||
for (list<SchedulableStatus>::iterator f=_set.begin(); f != _set.end(); f++)
|
||||
if (f->get_state() == SchedulableStatus::state_running){ //there can be only ONE running schedulable objext
|
||||
return smart_ptr<SchedulableStatus>(new SchedulableStatus(*f));
|
||||
}
|
||||
return smart_ptr<SchedulableStatus>(NULL);
|
||||
}
|
||||
|
||||
smart_ptr<const SchedulableStatus>
|
||||
SimulationStatus::get_running() const
|
||||
{
|
||||
for (list<SchedulableStatus>::const_iterator f=_set.begin(); f != _set.end(); f++)
|
||||
if (f->get_state() == SchedulableStatus::state_running){ //there can be only ONE running schedulable objext
|
||||
return smart_ptr<const SchedulableStatus>(new SchedulableStatus(*f));
|
||||
}
|
||||
return smart_ptr<const SchedulableStatus>(NULL); //NOT FOUND RUNNING ENTITIES
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
\brief Returns TRUE if the two objects have the same SchedulableStatus objects
|
||||
*/
|
||||
bool
|
||||
SimulationStatus::operator==(const SimulationStatus& dx) const
|
||||
{
|
||||
if (_set.size() != dx._set.size())
|
||||
return false;
|
||||
|
||||
//check if dx has ALL and ONLY the elements holded by _set with no order importance
|
||||
for(list<SchedulableStatus>::const_iterator f=_set.begin(); f != _set.end(); f++)
|
||||
if (find(dx._set.begin(), dx._set.end(), *f) == dx._set.end()) //element NOT found!!
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
|
@ -1,61 +0,0 @@
|
|||
// src/backend/simulationStatus.hh - Copyright 2005, 2006, University
|
||||
// of Padova, dept. of Pure and Applied
|
||||
// Mathematics
|
||||
//
|
||||
// This file is part of SGPEMv2.
|
||||
//
|
||||
// This is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// SGPEMv2 is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with SGPEMv2; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
#ifndef SIMULATIONSTATUS_HH
|
||||
#define SIMULATIONSTATUS_HH 1
|
||||
|
||||
#include "config.h"
|
||||
#include <list>
|
||||
|
||||
#include "schedulable_status.hh"
|
||||
#include "../templates/smartp.hh"
|
||||
|
||||
namespace sgpem
|
||||
{
|
||||
class SimulationStatus;
|
||||
|
||||
/** \brief Keeps informatios about the configuration of the simulation
|
||||
|
||||
Keeps informatios about the configuration of the simulation: which process is
|
||||
running and other infos (since M02+)
|
||||
*/
|
||||
|
||||
class SG_DLLEXPORT SimulationStatus
|
||||
{
|
||||
public:
|
||||
SimulationStatus();
|
||||
SimulationStatus(const SimulationStatus&);
|
||||
|
||||
bool operator==(const SimulationStatus&) const;
|
||||
|
||||
//this method isn't const because it returns a pointer which CAN alter the object!
|
||||
memory::smart_ptr<SchedulableStatus> get_running();
|
||||
memory::smart_ptr<const SchedulableStatus> get_running() const;
|
||||
void set_running(SchedulableStatus);
|
||||
|
||||
private:
|
||||
//I used a list instead of a vector because this one could reallocate the internal elements
|
||||
//making pointers returned by getRunning() point to nothing! SEGMENTATION-FAULT :-O
|
||||
std::list<SchedulableStatus> _set;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif
|
|
@ -23,15 +23,15 @@ using namespace sgpem;
|
|||
using namespace std;
|
||||
|
||||
|
||||
Slice::Slice(const int& start, const int& duration, const SimulationStatus& status)
|
||||
Slice::Slice(const int& start, const int& duration, const SchedulableList& status)
|
||||
: _ref(status), _started_at(start), _duration(duration)
|
||||
{
|
||||
}
|
||||
|
||||
SimulationStatus&
|
||||
Slice::get_simulation_status()
|
||||
const SchedulableList*
|
||||
Slice::get_simulation_status() const
|
||||
{
|
||||
return _ref;
|
||||
return &_ref;
|
||||
}
|
||||
|
||||
int
|
||||
|
|
|
@ -23,7 +23,7 @@
|
|||
|
||||
#include "config.h"
|
||||
|
||||
#include "simulation_status.hh"
|
||||
#include "schedulable_list.hh"
|
||||
|
||||
namespace sgpem
|
||||
{
|
||||
|
@ -39,15 +39,15 @@ namespace sgpem
|
|||
class SG_DLLEXPORT Slice
|
||||
{
|
||||
public:
|
||||
Slice(const int& start, const int& duration, const SimulationStatus& status);
|
||||
Slice(const int& start, const int& duration, const SchedulableList& status);
|
||||
|
||||
SimulationStatus& get_simulation_status();
|
||||
const SchedulableList* get_simulation_status() const;
|
||||
int get_started_at() const;
|
||||
int get_duration() const;
|
||||
void set_duration(const int&);
|
||||
|
||||
private:
|
||||
SimulationStatus _ref;
|
||||
SchedulableList _ref;
|
||||
int _started_at;
|
||||
int _duration;
|
||||
};
|
||||
|
|
68
src/main.cc
68
src/main.cc
|
@ -27,10 +27,10 @@
|
|||
|
||||
#include "templates/smartp.hh"
|
||||
#include "backend/history.hh"
|
||||
#include "backend/slice.hh"
|
||||
#include "backend/schedulable.hh"
|
||||
#include "backend/schedulable_list.hh"
|
||||
#include "backend/schedulable_status.hh"
|
||||
#include "backend/simulation_status.hh"
|
||||
#include "backend/slice.hh"
|
||||
#include "backend/process.hh"
|
||||
|
||||
#include <iostream>
|
||||
|
@ -68,32 +68,45 @@ main(int argc, char* argv[])
|
|||
Process p1("P1", 0,10,1);
|
||||
Process p2("P2", 0,30,2);
|
||||
Process p3("P3", 5,15,3);
|
||||
Process p4("P4", 6,5,3);
|
||||
Process p5("P5", 1,10,3);
|
||||
Process p6("P6", 10,2,1);
|
||||
|
||||
SchedulableStatus ss1(p1);
|
||||
SchedulableStatus ss1(p1); ss1.set_state(SchedulableStatus::state_running);
|
||||
SchedulableStatus ss2(p2);
|
||||
SchedulableStatus ss3(p3);
|
||||
SchedulableStatus ss4(p4); ss4.set_state(SchedulableStatus::state_running);
|
||||
SchedulableStatus ss5(p5);
|
||||
SchedulableStatus ss6(p6);
|
||||
|
||||
SimulationStatus sim1; sim1.set_running(p1);
|
||||
SimulationStatus sim2; sim2.set_running(p2);
|
||||
SimulationStatus sim3; sim3.set_running(p3);
|
||||
// SimulationStatus sim1; sim1.set_running(p1);
|
||||
|
||||
History h(History::getInstance());
|
||||
//************** TEST HISTORY
|
||||
|
||||
h.enqueue_slice(sim1);
|
||||
h.enqueue_slice(sim1);
|
||||
h.enqueue_slice(sim2);
|
||||
h.enqueue_slice(sim1);
|
||||
h.enqueue_slice(sim2);
|
||||
h.enqueue_slice(sim1);
|
||||
h.enqueue_slice(sim2);
|
||||
h.enqueue_slice(sim3);
|
||||
h.enqueue_slice(sim3);
|
||||
h.enqueue_slice(sim1);
|
||||
h.enqueue_slice(sim3);
|
||||
h.enqueue_slice(sim1);
|
||||
SchedulableList l1;
|
||||
l1.add_at_top(ss1); l1.add_at_top(ss2); l1.add_at_top(ss3);
|
||||
|
||||
h.truncate_at(3);
|
||||
SchedulableList l2;
|
||||
l2.add_at_top(ss4); l2.add_at_top(ss5); l2.add_at_top(ss6);
|
||||
|
||||
History h(History::get_instance());
|
||||
h.enqueue_slice(l1); //stato iniziale
|
||||
h.enqueue_slice(l2);
|
||||
|
||||
smart_ptr<const sgpem::SchedulableList> quale;
|
||||
|
||||
quale = h.get_simulation_status_at(0); //stato iniziale
|
||||
|
||||
cout << quale->get_item_at(0)->get_schedulable()->get_name();
|
||||
smart_ptr<const sgpem::SchedulableStatus> quale2 = h.get_scheduled_at(1);
|
||||
cout << quale2->get_schedulable()->get_name();
|
||||
|
||||
h.truncate_at(0);
|
||||
quale = h.get_simulation_status_at(0); //stato iniziale
|
||||
|
||||
cout << bool(quale) << " " << quale->get_item_at(0)->get_schedulable()->get_name();
|
||||
|
||||
/*
|
||||
smart_ptr<const sgpem::SimulationStatus> quale;
|
||||
|
||||
quale = h.get_simulation_status_at(0);
|
||||
|
@ -112,8 +125,23 @@ main(int argc, char* argv[])
|
|||
if (quale2) cout << "\n" << quale2->get_schedulable()->get_name(); else cout << "NO";
|
||||
quale2 = h.get_scheduled_at(2);
|
||||
if (quale2) cout << "\n" << quale2->get_schedulable()->get_name(); else cout << "NO";
|
||||
*/
|
||||
|
||||
//************** TEST QUEUE
|
||||
cout << "\n\nTEST QUEUE\n";
|
||||
|
||||
/* SchedulableQueue sq;
|
||||
sq.add_at_top(ss1);
|
||||
sq.add_at_top(ss2);
|
||||
sq.add_at_bottom(ss3);
|
||||
cout << sq.get_item_at(0)->get_schedulable()->get_name() << "\n";
|
||||
cout << sq.get_item_at(1)->get_schedulable()->get_name() << "\n";
|
||||
cout << sq.get_item_at(2)->get_schedulable()->get_name() << "\n";
|
||||
sq.insert_at(0,2);
|
||||
cout << sq.get_item_at(0)->get_schedulable()->get_name() << "\n";
|
||||
cout << sq.get_item_at(1)->get_schedulable()->get_name() << "\n";
|
||||
cout << sq.get_item_at(2)->get_schedulable()->get_name() << "\n";
|
||||
*/
|
||||
cout << "\n\n";
|
||||
return 0;
|
||||
}
|
||||
|
|
|
@ -0,0 +1,31 @@
|
|||
// src/frontend/observer.cc - Copyright 2005, 2006, University
|
||||
// of Padova, dept. of Pure and Applied
|
||||
// Mathematics
|
||||
//
|
||||
// This file is part of SGPEMv2.
|
||||
//
|
||||
// This is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// SGPEMv2 is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with SGPEMv2; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
#include "observer.hh"
|
||||
|
||||
using namespace sgpem;
|
||||
|
||||
Observer::Observer()
|
||||
{
|
||||
}
|
||||
|
||||
Observer::~Observer()
|
||||
{
|
||||
}
|
|
@ -37,9 +37,10 @@ namespace sgpem
|
|||
class SG_DLLEXPORT Observer
|
||||
{
|
||||
public:
|
||||
virtual ~Observer() = 0;
|
||||
Observer();
|
||||
virtual ~Observer() = 0;
|
||||
|
||||
virtual void update();
|
||||
virtual void update() =0;
|
||||
|
||||
private:
|
||||
};
|
||||
|
|
Loading…
Reference in New Issue