1 // Copyright (C) 2006-2012 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include "ForLoop.hxx"
21 #include "Runtime.hxx"
22 #include "LinkInfo.hxx"
23 #include "OutputPort.hxx"
24 #include "Visitor.hxx"
28 #include "YacsTrace.hxx"
30 using namespace YACS::ENGINE;
33 /*! \class YACS::ENGINE::ForLoop
34 * \brief Class for for loop node
38 * This kind of loop makes a fixed number of steps and stops
42 const char ForLoop::NAME_OF_NSTEPS_NUMBER[]="nsteps";
43 const char ForLoop::NAME_OF_INDEX[]="index";
45 ForLoop::ForLoop(const std::string& name):Loop(name),_nbOfTimesPort(NAME_OF_NSTEPS_NUMBER,this,Runtime::_tc_int),
46 _indexPort(NAME_OF_INDEX,this,Runtime::_tc_int)
50 ForLoop::ForLoop(const ForLoop& other, ComposedNode *father, bool editionOnly):Loop(other,father,editionOnly),
51 _nbOfTimesPort(other._nbOfTimesPort,this),
52 _indexPort(other._indexPort,this)
55 std::vector< std::pair<OutPort *, InPort *> > linksToReproduce=other.getSetOfInternalLinks();
56 std::vector< std::pair<OutPort *, InPort *> >::iterator iter=linksToReproduce.begin();
57 for(;iter!=linksToReproduce.end();++iter)
59 OutPort* pout = iter->first;
60 InPort* pin = iter->second;
61 edAddLink(getOutPort(other.getPortName(pout)),getInPort(other.getPortName(pin)));
65 Node *ForLoop::simpleClone(ComposedNode *father, bool editionOnly) const
67 return new ForLoop(*this,father,editionOnly);
70 InputPort* ForLoop::getInputPort(const std::string& name) const throw(YACS::Exception)
72 if(name == NAME_OF_NSTEPS_NUMBER)return (InputPort*)&_nbOfTimesPort;
73 return Loop::getInputPort(name);
77 //! Initialize the node
79 * \param start: a boolean flag to indicate the initialization mode
81 * If start is true, it's a complete initialization (with port values initialization)
82 * If start is false, there is no port values initialization
85 void ForLoop::init(bool start)
87 DEBTRACE("ForLoop::init " << start);
89 _nbOfTimesPort.exInit(start);
91 Any* tmp=AtomAny::New(_nbOfTurns);
96 //! Update the state of the for loop
98 * If the inGate port is ready goes to YACS::ACTIVATED state
99 * If the steps number is 0, create an special internal node
102 void ForLoop::exUpdateState()
104 DEBTRACE("ForLoop::exUpdateState " << getName() << " " << _state);
105 if(_state == YACS::DISABLED)
107 if(_inGate.exIsReady())
109 setState(YACS::ACTIVATED);
110 _node->exUpdateState();
111 if(_nbOfTimesPort.isEmpty())
113 delete _nodeForNullTurnOfLoops;
114 _nodeForNullTurnOfLoops=new FakeNodeForLoop(this,false,true);
118 if(_nbOfTimesPort.getIntValue()==0)
120 bool normalFinish=getAllOutPortsLeavingCurrentScope().empty();
121 delete _nodeForNullTurnOfLoops;
122 _nodeForNullTurnOfLoops=new FakeNodeForLoop(this,normalFinish);
124 else if(_nbOfTimesPort.getIntValue()<0)
126 delete _nodeForNullTurnOfLoops;
127 _nodeForNullTurnOfLoops=new FakeNodeForLoop(this,false);
131 delete _nodeForNullTurnOfLoops;
132 _nodeForNullTurnOfLoops=0;
138 //! Method used to notify the node that a child node has ended
140 * Update the loop state and return the loop change state
142 * \param node : the child node that has ended
143 * \return the loop state change
145 YACS::Event ForLoop::updateStateOnFinishedEventFrom(Node *node)
147 DEBTRACE("ForLoop::updateStateOnFinishedEventFrom " << node->getName());
148 if((++_nbOfTurns)>=_nbOfTimesPort.getIntValue())
150 setState(YACS::DONE);
155 Any* tmp=AtomAny::New(_nbOfTurns);
158 setState(YACS::ACTIVATED);
160 _node->exUpdateState();
162 return YACS::NOEVENT;
165 void ForLoop::accept(Visitor *visitor)
167 visitor->visitForLoop(this);
170 std::list<InputPort *> ForLoop::getLocalInputPorts() const
172 list<InputPort *> ret;
173 ret.push_back((InputPort *)&_nbOfTimesPort);
177 OutPort *ForLoop::getOutPort(const std::string& name) const throw(YACS::Exception)
179 if(name==NAME_OF_INDEX)
180 return (OutPort *)&_indexPort;
181 return Loop::getOutPort(name);
184 OutputPort *ForLoop::getOutputPort(const std::string& name) const throw(YACS::Exception)
186 if(name==NAME_OF_INDEX)
187 return (OutputPort *)&_indexPort;
188 return Loop::getOutputPort(name);
191 std::list<OutputPort *> ForLoop::getLocalOutputPorts() const
193 list<OutputPort *> ret;
194 ret.push_back(getOutputPort(NAME_OF_INDEX));
198 void ForLoop::checkControlDependancy(OutPort *start, InPort *end, bool cross,
199 std::map < ComposedNode *, std::list < OutPort * >, SortHierarc >& fw,
200 std::vector<OutPort *>& fwCross,
201 std::map< ComposedNode *, std::list < OutPort *>, SortHierarc >& bw,
202 LinkInfo& info) const
204 //First testing if start==indexPort. This is the only case possible in theory.
205 if(start != &_indexPort)
206 return StaticDefinedComposedNode::checkControlDependancy(start,end,cross,fw,fwCross,bw,info);
208 throw Exception("Internal error occured - cross type link detected on decision port of a loop. Forbidden !");
209 fw[(ComposedNode *)this].push_back(start);
212 void ForLoop::checkCFLinks(const std::list<OutPort *>& starts, InputPort *end, unsigned char& alreadyFed,
213 bool direction, LinkInfo& info) const
215 const char what[]="ForLoop::checkCFLinks : internal error.";
216 Node *nodeEnd=end->getNode();
218 {//In this case 'end' port is a special port of this (for exemple ForLoop::_nbOfTimesPort)
219 solveObviousOrDelegateCFLinks(starts,end,alreadyFed,direction,info);
221 else if(isInMyDescendance(nodeEnd)==0)
223 solveObviousOrDelegateCFLinks(starts,end,alreadyFed,direction,info);
226 {//no forwarding here.
228 throw Exception(what);
230 Node *nodeStart=(*(starts.begin()))->getNode();
233 // Link between the loop and the internal node
234 if(*(starts.begin())!=&_indexPort)
235 throw Exception(what);
239 // Link from internal node to internal node
240 if(nodeEnd!=nodeStart)
241 throw Exception(what);
244 if(alreadyFed==FREE_ST)
246 else if(alreadyFed==FED_ST)
248 info.pushInfoLink(*(starts.begin()),end,I_USELESS);
253 std::list<OutputPort *> ForLoop::getSetOfOutputPort() const
255 list<OutputPort *> ret=ComposedNode::getSetOfOutputPort();
256 ret.push_back((OutputPort *)&_indexPort);