1
/* PeTe - Petri Engine exTremE
2
* Copyright (C) 2011 Jonas Finnemann Jensen <jopsen@gmail.com>,
3
* Thomas Søndersø Nielsen <primogens@gmail.com>,
4
* Lars Kærlund Østergaard <larsko@gmail.com>,
6
* This program is free software: you can redistribute it and/or modify
7
* it under the terms of the GNU General Public License as published by
8
* the Free Software Foundation, either version 3 of the License, or
9
* (at your option) any later version.
11
* This program is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
* GNU General Public License for more details.
16
* You should have received a copy of the GNU General Public License
17
* along with this program. If not, see <http://www.gnu.org/licenses/>.
19
#ifndef SMARTSTATEALLOCATOR_H
20
#define SMARTSTATEALLOCATOR_H
22
#include "../PetriNet.h"
23
#include "SmartState.h"
28
namespace PetriEngine{
31
template<size_t memory>
32
class SmartStateAllocator{
34
SmartStateAllocator(const PetriNet& net){
35
data = new char[memory];
37
nPlaces = net.numberOfPlaces();
38
nVars = net.numberOfVariables();
41
~SmartStateAllocator(){
47
/** Create new state, returns NULL if out of memory */
48
SmartState* createStoredState(){
49
size_t size = sizeof(SmartState) + nPlaces * sizeof(MarkVal) + nVars * sizeof(VarVal);
50
if(offset - data + size > memory)
52
SmartState* s = (SmartState*)offset;
54
s->setTransition(0, 0);
55
s->_marking = (MarkVal*)(offset + sizeof(SmartState));
56
s->_valuation = (VarVal*)(offset + sizeof(SmartState) + nPlaces * sizeof(MarkVal));
60
/** Create new non-stored state, returns NULL if out of memory */
61
SmartState* createState(SmartState* parent = NULL, unsigned int transition = 0, int multiplicity = 1){
62
size_t size = sizeof(SmartState);
63
if(offset - data + size > memory)
65
SmartState* s = (SmartState*)offset;
67
s->setTransition(transition, multiplicity);
73
/** Get memory usage as double between 1 and 100 */
74
double percentMemoryUsed() const{
75
return ((double)(offset - data)) / (((double)memory)/100);
86
#endif // SMARTSTATEALLOCATOR_H