759b90b017
- Add interfaces for Process and Thread into the "sgpem.i" SWIG interface file, change DynamicSchedulable into Schedulable - Add dynamic_cast for the return value of ReadyQueue::get_item_at() into the pyloader "sgpem.i" SWIG interface, so that a Schedulable can be either recognized as a Thread or a Process - TODO: wrap STL exceptions in SWIG interface - Please note that code won't compile until the new History and Scheduler::step_forward() will be in place. This is a known issue. git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@689 3ecf2c5c-341e-0410-92b4-d18e462d057c
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
// src/backend/history.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 HISTORY_HH
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#define HISTORY_HH 1
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#include "config.h"
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#include <vector>
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#include <iostream>
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#include "slice.hh"
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#include "observed_subject.hh"
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#include "ready_queue.hh"
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#include "dynamic_schedulable.hh"
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#include "smartp.hh"
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// Do not include complete template definition here:
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#include "singleton.hh"
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namespace sgpem
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{
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/** \brief Manages the history of the simulation
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Manages the history of the simulation from the instant 0 to the current time,
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i.e. permits to know the state of each schedulable object inside this time interval.
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In particoular it's possible to know which entity was running at a precise moment.
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In a future iteration it will be possible to revert the entire simulation to a state
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present in the history ("undo operation")
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*/
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class History;
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class SG_DLLEXPORT History : public Singleton<History>, public ObservedSubject
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{
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friend class Singleton<History>;
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public:
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/**
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Gets the \ref Schedulable object running at the specified time.
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\param time The inquired time instant.
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\return The Schedulable object running at the given time.
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*/
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virtual memory::smart_ptr<sgpem::DynamicSchedulable> get_scheduled_at(int time) const;
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/**
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Gets the status of simulation at the specified time.
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\param time The inquired time instant.
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\return The list of Schedulable status objects at the specified time.
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*/
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virtual memory::smart_ptr<sgpem::ReadyQueue> get_simulation_status_at(int time) const;
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/**
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Gets the current time.
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\return The current history time.
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*/
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virtual int get_current_time() const;
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/**
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Sets the status of simulation at the current time.
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\param status The list of \ref Schedulable status objects at the current time.
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*/
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virtual void enqueue_slice(const sgpem::ReadyQueue& status);
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/**
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Remove all data in History following the specified time.
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\param instant Desired cutting time.
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*/
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virtual void truncate_at(int instant);
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protected:
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History(); //private constructor.
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History(const History&);
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History& operator=(const History&);
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private:
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int _total_time_elapsed;
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std::vector<sgpem::Slice> _slices;
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};
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}//~ namespace sgpem
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#endif //HISTORY_H
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