src/runtime/PythonNode.cxx

   1 // Copyright (C) 2006-2019  CEA/DEN, EDF R&D
   2 //
   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, or (at your option) any later version.
   7 //
   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.
  12 //
  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
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "RuntimeSALOME.hxx"
  21 #include "PythonNode.hxx"
  22 #include "PythonPorts.hxx"
  23 #include "TypeCode.hxx"
  24 #include "AutoGIL.hxx"
  25 #include "Container.hxx"
  26 #include "SalomeContainer.hxx"
  27 #include "SalomeHPContainer.hxx"
  28 #include "SalomeContainerTmpForHP.hxx"
  29 #include "ConversionException.hxx"
  30
  31 #include "PyStdout.hxx"
  32 #include <iostream>
  33 #include <sstream>
  34 #include <fstream>
  35
  36 #ifdef WIN32
  37 #include <process.h>
  38 #define getpid _getpid
  39 #endif
  40
  41 #if PY_VERSION_HEX < 0x02050000
  42 typedef int Py_ssize_t;
  43 #endif
  44
  45 //#define _DEVDEBUG_
  46 #include "YacsTrace.hxx"
  47
  48 using namespace YACS::ENGINE;
  49 using namespace std;
  50
  51 const char PythonEntry::SCRIPT_FOR_SIMPLE_SERIALIZATION[]="import pickle\n"
  52     "def pickleForVarSimplePyth2009(val):\n"
  53     "  return pickle.dumps(val,-1)\n"
  54     "\n";
  55
  56 const char PythonNode::IMPL_NAME[]="Python";
  57 const char PythonNode::KIND[]="Python";
  58
  59 const char PythonNode::SCRIPT_FOR_SERIALIZATION[]="import pickle\n"
  60     "def pickleForDistPyth2009(kws):\n"
  61     "  return pickle.dumps(((),kws),-1)\n"
  62     "\n"
  63     "def unPickleForDistPyth2009(st):\n"
  64     "  args=pickle.loads(st)\n"
  65     "  return args\n";
  66
  67 const char PythonNode::REMOTE_NAME[]="remote";
  68
  69 const char PythonNode::DPL_INFO_NAME[]="my_dpl_localization";
  70
  71 const char PyFuncNode::SCRIPT_FOR_SERIALIZATION[]="import pickle\n"
  72     "def pickleForDistPyth2009(*args,**kws):\n"
  73     "  return pickle.dumps((args,kws),-1)\n"
  74     "\n"
  75     "def unPickleForDistPyth2009(st):\n"
  76     "  args=pickle.loads(st)\n"
  77     "  return args\n";
  78
  79 PythonEntry::PythonEntry():_context(0),_pyfuncSer(0),_pyfuncUnser(0),_pyfuncSimpleSer(0)
  80 {
  81 }
  82
  83 PythonEntry::~PythonEntry()
  84 {
  85   AutoGIL agil;
  86   DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
  87   // not Py_XDECREF of _pyfuncUnser because it is returned by PyDict_GetItem -> borrowed
  88   // not Py_XDECREF of _pyfuncSer because it is returned by PyDict_GetItem -> borrowed
  89   Py_XDECREF(_context);
  90 }
  91
  92 void PythonEntry::loadRemoteContainer(InlineNode *reqNode)
  93 {
  94   DEBTRACE( "---------------PythonEntry::CommonRemoteLoad function---------------" );
  95   Container *container(reqNode->getContainer());
  96   bool isContAlreadyStarted(false);
  97   if(container)
  98     {
  99       isContAlreadyStarted=container->isAlreadyStarted(reqNode);
 100       if(!isContAlreadyStarted)
 101         {
 102           try
 103           {
 104             if(hasImposedResource())
 105               container->start(reqNode, _imposedResource, _imposedContainer);
 106             else
 107               container->start(reqNode);
 108           }
 109           catch(Exception& e)
 110           {
 111               reqNode->setErrorDetails(e.what());
 112               throw e;
 113           }
 114         }
 115     }
 116   else
 117     {
 118       std::string what("PythonEntry::CommonRemoteLoad : a load operation requested on \"");
 119       what+=reqNode->getName(); what+="\" with no container specified.";
 120       reqNode->setErrorDetails(what);
 121       throw Exception(what);
 122     }
 123 }
 124
 125 Engines::Container_var GetContainerObj(InlineNode *reqNode, bool& isStandardCont)
 126 {
 127   isStandardCont = false;
 128   Container *container(reqNode->getContainer());
 129   Engines::Container_var objContainer(Engines::Container::_nil());
 130   if(!container)
 131     throw YACS::Exception("No container specified !");
 132   SalomeContainer *containerCast0(dynamic_cast<SalomeContainer *>(container));
 133   SalomeHPContainer *containerCast1(dynamic_cast<SalomeHPContainer *>(container));
 134   if(containerCast0)
 135     {
 136       isStandardCont = true;
 137       objContainer=containerCast0->getContainerPtr(reqNode);
 138     }
 139   else if(containerCast1)
 140     {
 141       YACS::BASES::AutoCppPtr<SalomeContainerTmpForHP> tmpCont(SalomeContainerTmpForHP::BuildFrom(containerCast1,reqNode));
 142       objContainer=tmpCont->getContainerPtr(reqNode);
 143     }
 144   else
 145     throw YACS::Exception("Unrecognized type of container ! Salome one is expected for PythonNode/PyFuncNode !");
 146   if(CORBA::is_nil(objContainer))
 147     throw YACS::Exception("Container corba pointer is NULL for PythonNode !");
 148   return objContainer;
 149 }
 150
 151 Engines::Container_var PythonEntry::loadPythonAdapter(InlineNode *reqNode, bool& isInitializeRequested)
 152 {
 153   bool isStandardCont(true);
 154   Engines::Container_var objContainer(GetContainerObj(reqNode,isStandardCont));
 155   isInitializeRequested=false;
 156   try
 157   {
 158     Engines::PyNodeBase_var dftPyScript(retrieveDftRemotePyInterpretorIfAny(objContainer));
 159     if(CORBA::is_nil(dftPyScript))
 160     {
 161       isInitializeRequested=!isStandardCont;
 162       createRemoteAdaptedPyInterpretor(objContainer);
 163     }
 164     else
 165       assignRemotePyInterpretor(dftPyScript);
 166   }
 167   catch( const SALOME::SALOME_Exception& ex )
 168   {
 169       std::string msg="Exception on remote python node creation ";
 170       msg += '\n';
 171       msg += ex.details.text.in();
 172       reqNode->setErrorDetails(msg);
 173       throw Exception(msg);
 174   }
 175   Engines::PyNodeBase_var pynode(getRemoteInterpreterHandle());
 176   if(CORBA::is_nil(pynode))
 177     throw Exception("In PythonNode the ref in NULL ! ");
 178   return objContainer;
 179 }
 180
 181 void PythonEntry::loadRemoteContext(InlineNode *reqNode, Engines::Container_ptr objContainer, bool isInitializeRequested)
 182 {
 183   Container *container(reqNode->getContainer());
 184   Engines::PyNodeBase_var pynode(getRemoteInterpreterHandle());
 185   ///
 186   {
 187     AutoGIL agil;
 188     const char *picklizeScript(getSerializationScript());
 189     PyObject *res=PyRun_String(picklizeScript,Py_file_input,_context,_context);
 190     PyObject *res2(PyRun_String(SCRIPT_FOR_SIMPLE_SERIALIZATION,Py_file_input,_context,_context));
 191     if(res == NULL || res2==NULL)
 192       {
 193         std::string errorDetails;
 194         PyObject* new_stderr = newPyStdOut(errorDetails);
 195         reqNode->setErrorDetails(errorDetails);
 196         PySys_SetObject((char*)"stderr", new_stderr);
 197         PyErr_Print();
 198         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 199         Py_DECREF(new_stderr);
 200         throw Exception("Error during load");
 201       }
 202     Py_DECREF(res); Py_DECREF(res2);
 203     _pyfuncSer=PyDict_GetItemString(_context,"pickleForDistPyth2009");
 204     _pyfuncUnser=PyDict_GetItemString(_context,"unPickleForDistPyth2009");
 205     _pyfuncSimpleSer=PyDict_GetItemString(_context,"pickleForVarSimplePyth2009");
 206     if(_pyfuncSer == NULL)
 207       {
 208         std::string errorDetails;
 209         PyObject *new_stderr(newPyStdOut(errorDetails));
 210         reqNode->setErrorDetails(errorDetails);
 211         PySys_SetObject((char*)"stderr", new_stderr);
 212         PyErr_Print();
 213         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 214         Py_DECREF(new_stderr);
 215         throw Exception("Error during load");
 216       }
 217     if(_pyfuncUnser == NULL)
 218       {
 219         std::string errorDetails;
 220         PyObject *new_stderr(newPyStdOut(errorDetails));
 221         reqNode->setErrorDetails(errorDetails);
 222         PySys_SetObject((char*)"stderr", new_stderr);
 223         PyErr_Print();
 224         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 225         Py_DECREF(new_stderr);
 226         throw Exception("Error during load");
 227       }
 228     if(_pyfuncSimpleSer == NULL)
 229       {
 230         std::string errorDetails;
 231         PyObject *new_stderr(newPyStdOut(errorDetails));
 232         reqNode->setErrorDetails(errorDetails);
 233         PySys_SetObject((char*)"stderr", new_stderr);
 234         PyErr_Print();
 235         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 236         Py_DECREF(new_stderr);
 237         throw Exception("Error during load");
 238       }
 239   }
 240   if(isInitializeRequested)
 241     {//This one is called only once at initialization in the container if an init-script is specified.
 242       try
 243       {
 244           std::string zeInitScriptKey(container->getProperty(HomogeneousPoolContainer::INITIALIZE_SCRIPT_KEY));
 245           if(!zeInitScriptKey.empty())
 246             pynode->executeAnotherPieceOfCode(zeInitScriptKey.c_str());
 247       }
 248       catch( const SALOME::SALOME_Exception& ex )
 249       {
 250           std::string msg="Exception on PythonNode::loadRemote python invocation of initializisation py script !";
 251           msg += '\n';
 252           msg += ex.details.text.in();
 253           reqNode->setErrorDetails(msg);
 254           throw Exception(msg);
 255       }
 256       DEBTRACE( "---------------End PyNode::loadRemote function---------------" );
 257     }
 258 }
 259
 260 std::string PythonEntry::GetContainerLog(const std::string& mode, Container *container, const Task *askingTask)
 261 {
 262   if(mode=="local")
 263     return "";
 264
 265   std::string msg;
 266   try
 267   {
 268       SalomeContainer *containerCast(dynamic_cast<SalomeContainer *>(container));
 269       SalomeHPContainer *objContainer2(dynamic_cast<SalomeHPContainer *>(container));
 270       if(containerCast)
 271         {
 272           Engines::Container_var objContainer(containerCast->getContainerPtr(askingTask));
 273           CORBA::String_var logname = objContainer->logfilename();
 274           DEBTRACE(logname);
 275           msg=logname;
 276           std::string::size_type pos = msg.find(":");
 277           msg=msg.substr(pos+1);
 278         }
 279       else if(objContainer2)
 280         {
 281           msg="Remote PythonNode is on HP Container : no log because no info of the location by definition of HP Container !";
 282         }
 283       else
 284         {
 285           msg="Not implemented yet for container log for that type of container !";
 286         }
 287   }
 288   catch(...)
 289   {
 290       msg = "Container no longer reachable";
 291   }
 292   return msg;
 293 }
 294
 295 void PythonEntry::commonRemoteLoad(InlineNode *reqNode)
 296 {
 297   loadRemoteContainer(reqNode);
 298   bool isInitializeRequested;
 299   Engines::Container_var objContainer(loadPythonAdapter(reqNode,isInitializeRequested));
 300   loadRemoteContext(reqNode,objContainer,isInitializeRequested);
 301 }
 302
 303 bool PythonEntry::hasImposedResource()const
 304 {
 305   return !_imposedResource.empty() && !_imposedContainer.empty();
 306 }
 307
 308 PythonNode::PythonNode(const PythonNode& other, ComposedNode *father):InlineNode(other,father),_autoSqueeze(other._autoSqueeze)
 309 {
 310   _pynode = Engines::PyScriptNode::_nil();
 311   _implementation=IMPL_NAME;
 312   {
 313     AutoGIL agil;
 314     _context=PyDict_New();
 315     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
 316       {
 317         stringstream msg;
 318         msg << "Impossible to set builtins" << __FILE__ << ":" << __LINE__;
 319         _errorDetails=msg.str();
 320         throw Exception(msg.str());
 321       }
 322   }
 323 }
 324
 325 PythonNode::PythonNode(const std::string& name):InlineNode(name)
 326 {
 327   _pynode = Engines::PyScriptNode::_nil();
 328   _implementation=IMPL_NAME;
 329   {
 330     AutoGIL agil;
 331     _context=PyDict_New();
 332     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
 333       {
 334         stringstream msg;
 335         msg << "Impossible to set builtins" << __FILE__ << ":" << __LINE__;
 336         _errorDetails=msg.str();
 337         throw Exception(msg.str());
 338       }
 339   }
 340 }
 341
 342 PythonNode::~PythonNode()
 343 {
 344   if(!CORBA::is_nil(_pynode))
 345     {
 346       _pynode->UnRegister();
 347     }
 348 }
 349
 350 void PythonNode::checkBasicConsistency() const
 351 {
 352   DEBTRACE("checkBasicConsistency");
 353   InlineNode::checkBasicConsistency();
 354   {
 355     AutoGIL agil;
 356     PyObject* res;
 357     res=Py_CompileString(_script.c_str(),getName().c_str(),Py_file_input);
 358     if(res == NULL)
 359       {
 360         std::string error="";
 361         PyObject* new_stderr = newPyStdOut(error);
 362         PySys_SetObject((char*)"stderr", new_stderr);
 363         PyErr_Print();
 364         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 365         Py_DECREF(new_stderr);
 366         throw Exception(error);
 367       }
 368     else
 369       Py_XDECREF(res);
 370   }
 371 }
 372
 373 void PythonNode::load()
 374 {
 375   DEBTRACE( "---------------PyNode::load function---------------" );
 376   if(_mode==PythonNode::REMOTE_NAME)
 377     loadRemote();
 378   else
 379     loadLocal();
 380 }
 381
 382 void PythonNode::loadLocal()
 383 {
 384   DEBTRACE( "---------------PyNode::loadLocal function---------------" );
 385   // do nothing
 386 }
 387
 388 void PythonNode::loadRemote()
 389 {
 390   commonRemoteLoad(this);
 391 }
 392
 393 void PythonNode::execute()
 394 {
 395   if(_mode==PythonNode::REMOTE_NAME)
 396     executeRemote();
 397   else
 398     executeLocal();
 399 }
 400
 401 void PythonNode::executeRemote()
 402 {
 403   DEBTRACE( "++++++++++++++ PyNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
 404   if(!_pyfuncSer)
 405     throw Exception("DistributedPythonNode badly loaded");
 406   //
 407   if(dynamic_cast<HomogeneousPoolContainer *>(getContainer()))
 408     {
 409       bool dummy;
 410       loadPythonAdapter(this,dummy);
 411       _pynode->assignNewCompiledCode(getScript().c_str());
 412     }
 413   //
 414   Engines::pickledArgs_var serializationInputCorba(new Engines::pickledArgs);
 415   {
 416       AutoGIL agil;
 417       PyObject *args(0),*ob(0);
 418       //===========================================================================
 419       // Get inputs in input ports, build a Python dict and pickle it
 420       //===========================================================================
 421       args = PyDict_New();
 422       std::list<InputPort *>::iterator iter2;
 423       int pos(0);
 424       for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); ++iter2)
 425         {
 426           InputPyPort *p=(InputPyPort *)*iter2;
 427           ob=p->getPyObj();
 428           PyDict_SetItemString(args,p->getName().c_str(),ob);
 429           pos++;
 430         }
 431 #ifdef _DEVDEBUG_
 432       PyObject_Print(args,stderr,Py_PRINT_RAW);
 433       std::cerr << endl;
 434 #endif
 435       PyObject *serializationInput(PyObject_CallFunctionObjArgs(_pyfuncSer,args,NULL));
 436       Py_DECREF(args);
 437       //The pickled string may contain NULL characters so use PyString_AsStringAndSize
 438       char *serializationInputC(0);
 439       Py_ssize_t len;
 440       if (PyBytes_AsStringAndSize(serializationInput, &serializationInputC, &len))
 441         throw Exception("DistributedPythonNode problem in python pickle");
 442       serializationInputCorba->length(len);
 443       for(int i=0; i < len ; i++)
 444         serializationInputCorba[i]=serializationInputC[i];
 445       Py_DECREF(serializationInput);
 446   }
 447
 448   //get the list of output argument names
 449   std::list<OutputPort *>::iterator iter;
 450   Engines::listofstring myseq;
 451   myseq.length(getNumberOfOutputPorts());
 452   int pos=0;
 453   for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); ++iter)
 454     {
 455       OutputPyPort *p=(OutputPyPort *)*iter;
 456       myseq[pos]=p->getName().c_str();
 457       DEBTRACE( "port name: " << p->getName() );
 458       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 459       DEBTRACE( "port pos : " << pos );
 460       pos++;
 461     }
 462   //===========================================================================
 463   // Execute in remote Python node
 464   //===========================================================================
 465   DEBTRACE( "-----------------starting remote python invocation-----------------" );
 466   Engines::pickledArgs_var resultCorba;
 467   try
 468     {
 469       //pass outargsname and dict serialized
 470       resultCorba=_pynode->execute(myseq,serializationInputCorba);
 471     }
 472   catch( const SALOME::SALOME_Exception& ex )
 473     {
 474       std::string msg="Exception on remote python invocation";
 475       msg += '\n';
 476       msg += ex.details.text.in();
 477       _errorDetails=msg;
 478       throw Exception(msg);
 479     }
 480   DEBTRACE( "-----------------end of remote python invocation-----------------" );
 481   //===========================================================================
 482   // Get results, unpickle and put them in output ports
 483   //===========================================================================
 484   char *resultCorbaC=new char[resultCorba->length()+1];
 485   resultCorbaC[resultCorba->length()]='\0';
 486   for(int i=0;i<resultCorba->length();i++)
 487     resultCorbaC[i]=resultCorba[i];
 488
 489   {
 490       AutoGIL agil;
 491       PyObject *args(0),*ob(0);
 492       PyObject* resultPython=PyBytes_FromStringAndSize(resultCorbaC,resultCorba->length());
 493       delete [] resultCorbaC;
 494       args = PyTuple_New(1);
 495       PyTuple_SetItem(args,0,resultPython);
 496       PyObject *finalResult=PyObject_CallObject(_pyfuncUnser,args);
 497       Py_DECREF(args);
 498
 499       if (finalResult == NULL)
 500         {
 501           std::stringstream msg;
 502           msg << "Conversion with pickle of output ports failed !";
 503           msg << " : " << __FILE__ << ":" << __LINE__;
 504           _errorDetails=msg.str();
 505           throw YACS::ENGINE::ConversionException(msg.str());
 506         }
 507
 508       DEBTRACE( "-----------------PythonNode::outputs-----------------" );
 509       int nres=1;
 510       if(finalResult == Py_None)
 511         nres=0;
 512       else if(PyTuple_Check(finalResult))
 513         nres=PyTuple_Size(finalResult);
 514
 515       if(getNumberOfOutputPorts() != nres)
 516         {
 517           std::string msg="Number of output arguments : Mismatch between definition and execution";
 518           Py_DECREF(finalResult);
 519           _errorDetails=msg;
 520           throw Exception(msg);
 521         }
 522
 523       pos=0;
 524       try
 525       {
 526           for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); ++iter)
 527             {
 528               OutputPyPort *p=(OutputPyPort *)*iter;
 529               DEBTRACE( "port name: " << p->getName() );
 530               DEBTRACE( "port kind: " << p->edGetType()->kind() );
 531               DEBTRACE( "port pos : " << pos );
 532               if(PyTuple_Check(finalResult))
 533                 ob=PyTuple_GetItem(finalResult,pos) ;
 534               else
 535                 ob=finalResult;
 536               DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
 537               p->put(ob);
 538               pos++;
 539             }
 540           Py_DECREF(finalResult);
 541       }
 542       catch(ConversionException& ex)
 543       {
 544           Py_DECREF(finalResult);
 545           _errorDetails=ex.what();
 546           throw;
 547       }
 548       if(_autoSqueeze)
 549         squeezeMemoryRemote();
 550   }
 551   //
 552   if(!storeContext())
 553   {
 554     if(!CORBA::is_nil(_pynode))
 555       {
 556         _pynode->UnRegister();
 557       }
 558     _pynode = Engines::PyScriptNode::_nil();
 559     bool dummy;
 560     Engines::Container_var cont(GetContainerObj(this,dummy));
 561     cont->removePyScriptNode(getName().c_str());
 562   }
 563   DEBTRACE( "++++++++++++++ ENDOF PyNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
 564 }
 565
 566 void PythonNode::executeLocal()
 567 {
 568   DEBTRACE( "++++++++++++++ PyNode::executeLocal: " << getName() << " ++++++++++++++++++++" );
 569   {
 570     AutoGIL agil;
 571
 572     DEBTRACE( "---------------PyNode::inputs---------------" );
 573     list<InputPort *>::iterator iter2;
 574     for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++)
 575       {
 576         InputPyPort *p=(InputPyPort *)*iter2;
 577         DEBTRACE( "port name: " << p->getName() );
 578         DEBTRACE( "port kind: " << p->edGetType()->kind() );
 579         PyObject* ob=p->getPyObj();
 580         DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
 581 #ifdef _DEVDEBUG_
 582         PyObject_Print(ob,stderr,Py_PRINT_RAW);
 583         cerr << endl;
 584 #endif
 585         int ier=PyDict_SetItemString(_context,p->getName().c_str(),ob);
 586         DEBTRACE( "after PyDict_SetItemString:ob refcnt: " << ob->ob_refcnt );
 587       }
 588
 589     DEBTRACE( "---------------End PyNode::inputs---------------" );
 590
 591     //calculation
 592     DEBTRACE( "----------------PyNode::calculation---------------" );
 593     DEBTRACE(  _script );
 594     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
 595
 596     std::ostringstream stream;
 597     stream << "/tmp/PythonNode_";
 598     stream << getpid();
 599
 600     PyObject* code=Py_CompileString(_script.c_str(), stream.str().c_str(), Py_file_input);
 601     if(code == NULL)
 602       {
 603         _errorDetails="";
 604         PyObject* new_stderr = newPyStdOut(_errorDetails);
 605         PySys_SetObject((char*)"stderr", new_stderr);
 606         PyErr_Print();
 607         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 608         Py_DECREF(new_stderr);
 609         throw Exception("Error during execution");
 610       }
 611     PyObject *res = PyEval_EvalCode(  code, _context, _context);
 612
 613     Py_DECREF(code);
 614     Py_XDECREF(res);
 615     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
 616     fflush(stdout);
 617     fflush(stderr);
 618     if(PyErr_Occurred ())
 619       {
 620         _errorDetails="";
 621         PyObject* new_stderr = newPyStdOut(_errorDetails);
 622         PySys_SetObject((char*)"stderr", new_stderr);
 623         ofstream errorfile(stream.str().c_str());
 624         if (errorfile.is_open())
 625           {
 626             errorfile << _script;
 627             errorfile.close();
 628           }
 629         PyErr_Print();
 630         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 631         Py_DECREF(new_stderr);
 632         throw Exception("Error during execution");
 633       }
 634
 635     DEBTRACE( "-----------------PyNode::outputs-----------------" );
 636     list<OutputPort *>::iterator iter;
 637     try
 638     {
 639         for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
 640           {
 641             OutputPyPort *p=(OutputPyPort *)*iter;
 642             DEBTRACE( "port name: " << p->getName() );
 643             DEBTRACE( "port kind: " << p->edGetType()->kind() );
 644             PyObject *ob=PyDict_GetItemString(_context,p->getName().c_str());
 645             if(ob==NULL)
 646               {
 647                 std::string msg="Error during execution: there is no variable ";
 648                 msg=msg+p->getName()+" in node context";
 649                 _errorDetails=msg;
 650                 throw Exception(msg);
 651               }
 652             DEBTRACE( "PyNode::outputs::ob refcnt: " << ob->ob_refcnt );
 653 #ifdef _DEVDEBUG_
 654             PyObject_Print(ob,stderr,Py_PRINT_RAW);
 655             cerr << endl;
 656 #endif
 657             p->put(ob);
 658           }
 659     }
 660     catch(ConversionException& ex)
 661     {
 662         _errorDetails=ex.what();
 663         throw;
 664     }
 665     if(_autoSqueeze)
 666       squeezeMemory();
 667     DEBTRACE( "-----------------End PyNode::outputs-----------------" );
 668   }
 669   DEBTRACE( "++++++++++++++ End PyNode::execute: " << getName() << " ++++++++++++++++++++" );
 670 }
 671
 672 void PythonNode::squeezeMemorySafe()
 673 {
 674   AutoGIL agil;
 675   if(_mode==PythonNode::REMOTE_NAME)
 676     this->squeezeMemoryRemote();
 677   else
 678     this->squeezeMemory();
 679 }
 680
 681 void PythonNode::squeezeMemory()
 682 {
 683   for(auto p : _setOfInputPort)
 684     {
 685       PyDict_DelItemString(_context,p->getName().c_str());
 686       InputPyPort *p2(static_cast<InputPyPort *>(p));
 687       if(p2->canSafelySqueezeMemory())
 688         p2->put(Py_None);
 689     }
 690   for(auto p : _setOfOutputPort)
 691     {
 692       PyDict_DelItemString(_context,p->getName().c_str());
 693       OutputPyPort *p2(static_cast<OutputPyPort *>(p));
 694       p2->putWithoutForward(Py_None);
 695     }
 696 }
 697
 698 void PythonNode::squeezeMemoryRemote()
 699 {
 700   for(auto p : _setOfInputPort)
 701     {
 702       InputPyPort *p2(static_cast<InputPyPort *>(p));
 703       if(p2->canSafelySqueezeMemory())
 704         p2->put(Py_None);
 705     }
 706   for(auto p : _setOfOutputPort)
 707     {
 708       OutputPyPort *p2(static_cast<OutputPyPort *>(p));
 709       p2->putWithoutForward(Py_None);
 710     }
 711 }
 712
 713 std::string PythonNode::getContainerLog()
 714 {
 715   return PythonEntry::GetContainerLog(_mode,_container,this);
 716 }
 717
 718 void PythonNode::shutdown(int level)
 719 {
 720   DEBTRACE("PythonNode::shutdown " << level);
 721   if(_mode=="local")return;
 722   if(_container)
 723     {
 724       if(!CORBA::is_nil(_pynode)) _pynode->UnRegister();
 725       _pynode=Engines::PyScriptNode::_nil();
 726       _container->shutdown(level);
 727     }
 728 }
 729
 730 void PythonNode::imposeResource(const std::string& resource_name,
 731                                 const std::string& container_name)
 732 {
 733   if(!resource_name.empty() && !container_name.empty())
 734   {
 735     _imposedResource = resource_name;
 736     _imposedContainer = container_name;
 737   }
 738 }
 739
 740 bool PythonNode::canAcceptImposedResource()
 741 {
 742   return _container != nullptr && _container->canAcceptImposedResource();
 743 }
 744
 745 std::string PythonNode::pythonEntryName()const
 746 {
 747   if(storeContext())
 748     return "DEFAULT_NAME_FOR_UNIQUE_PYTHON_NODE_ENTRY";
 749   else
 750     return getName();
 751 }
 752
 753 bool PythonNode::storeContext()const
 754 {
 755   bool found = false;
 756   if(_container)
 757     found = _container->storeContext();
 758   return found;
 759 }
 760
 761 Node *PythonNode::simpleClone(ComposedNode *father, bool editionOnly) const
 762 {
 763   return new PythonNode(*this,father);
 764 }
 765
 766 void PythonNode::createRemoteAdaptedPyInterpretor(Engines::Container_ptr objContainer)
 767 {
 768   if(!CORBA::is_nil(_pynode))
 769     _pynode->UnRegister();
 770   _pynode=objContainer->createPyScriptNode(pythonEntryName().c_str(),getScript().c_str());
 771   _pynode->Register();
 772 }
 773
 774 Engines::PyNodeBase_var PythonNode::retrieveDftRemotePyInterpretorIfAny(Engines::Container_ptr objContainer) const
 775 {
 776   Engines::PyScriptNode_var ret(objContainer->getDefaultPyScriptNode(pythonEntryName().c_str()));
 777   if(!CORBA::is_nil(ret))
 778     {
 779       ret->Register();
 780     }
 781   return Engines::PyNodeBase::_narrow(ret);
 782 }
 783
 784 void PythonNode::assignRemotePyInterpretor(Engines::PyNodeBase_var remoteInterp)
 785 {
 786   if(CORBA::is_nil(_pynode))
 787     _pynode=Engines::PyScriptNode::_narrow(remoteInterp);
 788   else
 789   {
 790     Engines::PyScriptNode_var tmpp(Engines::PyScriptNode::_narrow(remoteInterp));
 791     if(!_pynode->_is_equivalent(tmpp))
 792     {
 793       _pynode->UnRegister();
 794       _pynode=Engines::PyScriptNode::_narrow(remoteInterp);
 795     }
 796   }
 797   _pynode->assignNewCompiledCode(getScript().c_str());
 798 }
 799
 800 Engines::PyNodeBase_var PythonNode::getRemoteInterpreterHandle()
 801 {
 802   return Engines::PyNodeBase::_narrow(_pynode);
 803 }
 804
 805 //! Create a new node of same type with a given name
 806 PythonNode* PythonNode::cloneNode(const std::string& name)
 807 {
 808   PythonNode* n=new PythonNode(name);
 809   n->setScript(_script);
 810   list<InputPort *>::iterator iter;
 811   for(iter = _setOfInputPort.begin(); iter != _setOfInputPort.end(); iter++)
 812     {
 813       InputPyPort *p=(InputPyPort *)*iter;
 814       DEBTRACE( "port name: " << p->getName() );
 815       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 816       n->edAddInputPort(p->getName(),p->edGetType());
 817     }
 818   list<OutputPort *>::iterator iter2;
 819   for(iter2 = _setOfOutputPort.begin(); iter2 != _setOfOutputPort.end(); iter2++)
 820     {
 821       OutputPyPort *p=(OutputPyPort *)*iter2;
 822       DEBTRACE( "port name: " << p->getName() );
 823       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 824       n->edAddOutputPort(p->getName(),p->edGetType());
 825     }
 826   return n;
 827 }
 828
 829 void PythonNode::applyDPLScope(ComposedNode *gfn)
 830 {
 831   std::vector< std::pair<std::string,int> > ret(getDPLScopeInfo(gfn));
 832   if(ret.empty())
 833     return ;
 834   //
 835   PyObject *ob(0);
 836   {
 837     AutoGIL agil;
 838     std::size_t sz(ret.size());
 839     ob=PyList_New(sz);
 840     for(std::size_t i=0;i<sz;i++)
 841       {
 842         const std::pair<std::string,int>& p(ret[i]);
 843         PyObject *elt(PyTuple_New(2));
 844         PyTuple_SetItem(elt,0,PyUnicode_FromString(p.first.c_str()));
 845         PyTuple_SetItem(elt,1,PyLong_FromLong(p.second));
 846         PyList_SetItem(ob,i,elt);
 847       }
 848   }
 849   if(_mode==REMOTE_NAME)
 850     {
 851       Engines::pickledArgs_var serializationInputCorba(new Engines::pickledArgs);
 852       {
 853         AutoGIL agil;
 854         PyObject *serializationInput(PyObject_CallFunctionObjArgs(_pyfuncSimpleSer,ob,NULL));
 855         Py_XDECREF(ob);
 856         char *serializationInputC(0);
 857         Py_ssize_t len;
 858         if (PyBytes_AsStringAndSize(serializationInput, &serializationInputC, &len))
 859           throw Exception("DistributedPythonNode problem in python pickle");
 860         serializationInputCorba->length(len);
 861         for(int i=0; i < len ; i++)
 862           serializationInputCorba[i]=serializationInputC[i];
 863         Py_XDECREF(serializationInput);
 864       }
 865       _pynode->defineNewCustomVar(DPL_INFO_NAME,serializationInputCorba);
 866     }
 867   else
 868     {
 869       AutoGIL agil;
 870       PyDict_SetItemString(_context,DPL_INFO_NAME,ob);
 871       Py_XDECREF(ob);
 872     }
 873 }
 874
 875 PyFuncNode::PyFuncNode(const PyFuncNode& other, ComposedNode *father):InlineFuncNode(other,father),_pyfunc(0)
 876 {
 877   _implementation = PythonNode::IMPL_NAME;
 878   {
 879     AutoGIL agil;
 880     _context=PyDict_New();
 881     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
 882     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
 883       {
 884         stringstream msg;
 885         msg << "Not possible to set builtins" << __FILE__ << ":" << __LINE__;
 886         _errorDetails=msg.str();
 887         throw Exception(msg.str());
 888       }
 889   }
 890 }
 891
 892 PyFuncNode::PyFuncNode(const std::string& name): InlineFuncNode(name),_pyfunc(0)
 893 {
 894
 895   _implementation = PythonNode::IMPL_NAME;
 896   DEBTRACE( "PyFuncNode::PyFuncNode " << name );
 897   {
 898     AutoGIL agil;
 899     _context=PyDict_New();
 900     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
 901     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
 902       {
 903         stringstream msg;
 904         msg << "Not possible to set builtins" << __FILE__ << ":" << __LINE__;
 905         _errorDetails=msg.str();
 906         throw Exception(msg.str());
 907       }
 908   }
 909 }
 910
 911 PyFuncNode::~PyFuncNode()
 912 {
 913   if(!CORBA::is_nil(_pynode))
 914     {
 915       _pynode->UnRegister();
 916     }
 917 }
 918
 919 void PyFuncNode::init(bool start)
 920 {
 921   initCommonPartWithoutStateManagement(start);
 922   if(_state == YACS::DISABLED)
 923     {
 924       exDisabledState(); // to refresh propagation of DISABLED state
 925       return ;
 926     }
 927   if(start) //complete initialization
 928     setState(YACS::READY);
 929   else if(_state > YACS::LOADED)// WARNING FuncNode has internal vars (CEA usecase) ! Partial initialization (inside a loop). Exclusivity of funcNode.
 930     setState(YACS::TORECONNECT);
 931 }
 932
 933 void PyFuncNode::checkBasicConsistency() const
 934 {
 935   DEBTRACE("checkBasicConsistency");
 936   InlineFuncNode::checkBasicConsistency();
 937   {
 938     AutoGIL agil;
 939     PyObject* res;
 940     res=Py_CompileString(_script.c_str(),getName().c_str(),Py_file_input);
 941     if(res == NULL)
 942       {
 943         std::string error="";
 944         PyObject* new_stderr = newPyStdOut(error);
 945         PySys_SetObject((char*)"stderr", new_stderr);
 946         PyErr_Print();
 947         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 948         Py_DECREF(new_stderr);
 949         throw Exception(error);
 950       }
 951     else
 952       Py_XDECREF(res);
 953   }
 954 }
 955
 956 void PyFuncNode::load()
 957 {
 958   DEBTRACE( "---------------PyfuncNode::load function---------------" );
 959   if(_mode==PythonNode::REMOTE_NAME)
 960     loadRemote();
 961   else
 962     loadLocal();
 963 }
 964
 965 void PyFuncNode::loadRemote()
 966 {
 967   commonRemoteLoad(this);
 968 }
 969
 970 void PyFuncNode::loadLocal()
 971 {
 972   DEBTRACE( "---------------PyFuncNode::load function " << getName() << " ---------------" );
 973   DEBTRACE(  _script );
 974
 975 #ifdef _DEVDEBUG_
 976   list<OutputPort *>::iterator iter;
 977   for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
 978     {
 979       OutputPyPort *p=(OutputPyPort *)*iter;
 980       DEBTRACE( "port name: " << p->getName() );
 981       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 982     }
 983 #endif
 984
 985   {
 986     AutoGIL agil;
 987     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
 988
 989     std::ostringstream stream;
 990     stream << "/tmp/PythonNode_";
 991     stream << getpid();
 992
 993     PyObject* code=Py_CompileString(_script.c_str(), stream.str().c_str(), Py_file_input);
 994     if(code == NULL)
 995       {
 996         _errorDetails="";
 997         PyObject* new_stderr = newPyStdOut(_errorDetails);
 998         PySys_SetObject((char*)"stderr", new_stderr);
 999         PyErr_Print();
1000         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1001         Py_DECREF(new_stderr);
1002         throw Exception("Error during execution");
1003       }
1004     PyObject *res = PyEval_EvalCode( code, _context, _context);
1005     Py_DECREF(code);
1006     Py_XDECREF(res);
1007
1008     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1009     if(PyErr_Occurred ())
1010       {
1011         _errorDetails="";
1012         PyObject* new_stderr = newPyStdOut(_errorDetails);
1013         PySys_SetObject((char*)"stderr", new_stderr);
1014         ofstream errorfile(stream.str().c_str());
1015         if (errorfile.is_open())
1016           {
1017             errorfile << _script;
1018             errorfile.close();
1019           }
1020         PyErr_Print();
1021         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1022         Py_DECREF(new_stderr);
1023         throw Exception("Error during execution");
1024         return;
1025       }
1026     _pyfunc=PyDict_GetItemString(_context,_fname.c_str());
1027     DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1028     if(_pyfunc == NULL)
1029       {
1030         _errorDetails="";
1031         PyObject* new_stderr = newPyStdOut(_errorDetails);
1032         PySys_SetObject((char*)"stderr", new_stderr);
1033         PyErr_Print();
1034         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1035         Py_DECREF(new_stderr);
1036         throw Exception("Error during execution");
1037       }
1038     DEBTRACE( "---------------End PyFuncNode::load function---------------" );
1039   }
1040 }
1041
1042 void PyFuncNode::execute()
1043 {
1044   if(_mode==PythonNode::REMOTE_NAME)
1045     executeRemote();
1046   else
1047     executeLocal();
1048 }
1049
1050 void PyFuncNode::executeRemote()
1051 {
1052   DEBTRACE( "++++++++++++++ PyFuncNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
1053   if(!_pyfuncSer)
1054     throw Exception("DistributedPythonNode badly loaded");
1055   //
1056   if(dynamic_cast<HomogeneousPoolContainer *>(getContainer()))
1057     {
1058       bool dummy;
1059       loadPythonAdapter(this,dummy);
1060       _pynode->executeAnotherPieceOfCode(getScript().c_str());
1061     }
1062   //
1063   Engines::pickledArgs_var serializationInputCorba(new Engines::pickledArgs);;
1064   {
1065       AutoGIL agil;
1066       PyObject *ob(0);
1067       //===========================================================================
1068       // Get inputs in input ports, build a Python tuple and pickle it
1069       //===========================================================================
1070       PyObject *args(PyTuple_New(getNumberOfInputPorts()));
1071       int pos(0);
1072       for(std::list<InputPort *>::iterator iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++,pos++)
1073         {
1074           InputPyPort *p=(InputPyPort *)*iter2;
1075           ob=p->getPyObj();
1076           Py_INCREF(ob);
1077           PyTuple_SetItem(args,pos,ob);
1078         }
1079 #ifdef _DEVDEBUG_
1080       PyObject_Print(args,stderr,Py_PRINT_RAW);
1081       std::cerr << endl;
1082 #endif
1083       PyObject *serializationInput=PyObject_CallObject(_pyfuncSer,args);
1084       Py_DECREF(args);
1085       //The pickled string may contain NULL characters so use PyString_AsStringAndSize
1086       char *serializationInputC(0);
1087       Py_ssize_t len;
1088       if (PyBytes_AsStringAndSize(serializationInput, &serializationInputC, &len))
1089         throw Exception("DistributedPythonNode problem in python pickle");
1090
1091       serializationInputCorba->length(len);
1092       for(int i=0; i < len ; i++)
1093         serializationInputCorba[i]=serializationInputC[i];
1094       Py_DECREF(serializationInput);
1095   }
1096
1097   //===========================================================================
1098   // Execute in remote Python node
1099   //===========================================================================
1100   DEBTRACE( "-----------------starting remote python invocation-----------------" );
1101   Engines::pickledArgs_var resultCorba;
1102   try
1103     {
1104       resultCorba=_pynode->execute(getFname().c_str(),serializationInputCorba);
1105     }
1106   catch( const SALOME::SALOME_Exception& ex )
1107     {
1108       std::string msg="Exception on remote python invocation";
1109       msg += '\n';
1110       msg += ex.details.text.in();
1111       _errorDetails=msg;
1112       throw Exception(msg);
1113     }
1114   DEBTRACE( "-----------------end of remote python invocation-----------------" );
1115   //===========================================================================
1116   // Get results, unpickle and put them in output ports
1117   //===========================================================================
1118   char *resultCorbaC=new char[resultCorba->length()+1];
1119   resultCorbaC[resultCorba->length()]='\0';
1120   for(int i=0;i<resultCorba->length();i++)
1121     resultCorbaC[i]=resultCorba[i];
1122
1123   {
1124       AutoGIL agil;
1125
1126       PyObject *resultPython(PyBytes_FromStringAndSize(resultCorbaC,resultCorba->length()));
1127       delete [] resultCorbaC;
1128       PyObject *args(PyTuple_New(1)),*ob(0);
1129       PyTuple_SetItem(args,0,resultPython);
1130       PyObject *finalResult=PyObject_CallObject(_pyfuncUnser,args);
1131       Py_DECREF(args);
1132
1133       DEBTRACE( "-----------------PythonNode::outputs-----------------" );
1134       int nres=1;
1135       if(finalResult == Py_None)
1136         nres=0;
1137       else if(PyTuple_Check(finalResult))
1138         nres=PyTuple_Size(finalResult);
1139
1140       if(getNumberOfOutputPorts() != nres)
1141         {
1142           std::string msg="Number of output arguments : Mismatch between definition and execution";
1143           Py_DECREF(finalResult);
1144           _errorDetails=msg;
1145           throw Exception(msg);
1146         }
1147
1148       try
1149       {
1150           int pos(0);
1151           for(std::list<OutputPort *>::iterator iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++, pos++)
1152             {
1153               OutputPyPort *p=(OutputPyPort *)*iter;
1154               DEBTRACE( "port name: " << p->getName() );
1155               DEBTRACE( "port kind: " << p->edGetType()->kind() );
1156               DEBTRACE( "port pos : " << pos );
1157               if(PyTuple_Check(finalResult))
1158                 ob=PyTuple_GetItem(finalResult,pos) ;
1159               else
1160                 ob=finalResult;
1161               DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1162               p->put(ob);
1163             }
1164           Py_DECREF(finalResult);
1165       }
1166       catch(ConversionException& ex)
1167       {
1168           Py_DECREF(finalResult);
1169           _errorDetails=ex.what();
1170           throw;
1171       }
1172   }
1173
1174   DEBTRACE( "++++++++++++++ ENDOF PyFuncNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
1175 }
1176
1177 void PyFuncNode::executeLocal()
1178 {
1179   DEBTRACE( "++++++++++++++ PyFuncNode::execute: " << getName() << " ++++++++++++++++++++" );
1180
1181   int pos=0;
1182   PyObject* ob;
1183   if(!_pyfunc)throw Exception("PyFuncNode badly loaded");
1184   {
1185       AutoGIL agil;
1186       DEBTRACE( "---------------PyFuncNode::inputs---------------" );
1187       PyObject* args = PyTuple_New(getNumberOfInputPorts()) ;
1188       list<InputPort *>::iterator iter2;
1189       for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++)
1190         {
1191           InputPyPort *p=(InputPyPort *)*iter2;
1192           DEBTRACE( "port name: " << p->getName() );
1193           DEBTRACE( "port kind: " << p->edGetType()->kind() );
1194           ob=p->getPyObj();
1195 #ifdef _DEVDEBUG_
1196           PyObject_Print(ob,stderr,Py_PRINT_RAW);
1197           cerr << endl;
1198 #endif
1199           DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1200           Py_INCREF(ob);
1201           PyTuple_SetItem(args,pos,ob);
1202           DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1203           pos++;
1204         }
1205       DEBTRACE( "---------------End PyFuncNode::inputs---------------" );
1206
1207       DEBTRACE( "----------------PyFuncNode::calculation---------------" );
1208 #ifdef _DEVDEBUG_
1209       PyObject_Print(_pyfunc,stderr,Py_PRINT_RAW);
1210       cerr << endl;
1211       PyObject_Print(args,stderr,Py_PRINT_RAW);
1212       cerr << endl;
1213 #endif
1214       DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1215       PyObject* result = PyObject_CallObject( _pyfunc , args ) ;
1216       DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1217       Py_DECREF(args);
1218       fflush(stdout);
1219       fflush(stderr);
1220       if(result == NULL)
1221         {
1222           _errorDetails="";
1223           PyObject* new_stderr = newPyStdOut(_errorDetails);
1224           PySys_SetObject((char*)"stderr", new_stderr);
1225           std::ostringstream stream;
1226           stream << "/tmp/PythonNode_";
1227           stream << getpid();
1228           ofstream errorfile(stream.str().c_str());
1229           if (errorfile.is_open())
1230             {
1231               errorfile << _script;
1232               errorfile.close();
1233             }
1234           PyErr_Print();
1235           PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1236           Py_DECREF(new_stderr);
1237           throw Exception("Error during execution");
1238         }
1239       DEBTRACE( "----------------End PyFuncNode::calculation---------------" );
1240
1241       DEBTRACE( "-----------------PyFuncNode::outputs-----------------" );
1242       int nres=1;
1243       if(result == Py_None)
1244         nres=0;
1245       else if(PyTuple_Check(result))
1246         nres=PyTuple_Size(result);
1247
1248       if(getNumberOfOutputPorts() != nres)
1249         {
1250           std::string msg="Number of output arguments : Mismatch between definition and execution";
1251           Py_DECREF(result);
1252           _errorDetails=msg;
1253           throw Exception(msg);
1254         }
1255
1256       pos=0;
1257 #ifdef _DEVDEBUG_
1258       PyObject_Print(result,stderr,Py_PRINT_RAW);
1259       cerr << endl;
1260 #endif
1261       list<OutputPort *>::iterator iter;
1262       try
1263       {
1264           for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
1265             {
1266               OutputPyPort *p=(OutputPyPort *)*iter;
1267               DEBTRACE( "port name: " << p->getName() );
1268               DEBTRACE( "port kind: " << p->edGetType()->kind() );
1269               DEBTRACE( "port pos : " << pos );
1270               if(PyTuple_Check(result))ob=PyTuple_GetItem(result,pos) ;
1271               else ob=result;
1272               DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1273 #ifdef _DEVDEBUG_
1274               PyObject_Print(ob,stderr,Py_PRINT_RAW);
1275               cerr << endl;
1276 #endif
1277               p->put(ob);
1278               pos++;
1279             }
1280       }
1281       catch(ConversionException& ex)
1282       {
1283           Py_DECREF(result);
1284           _errorDetails=ex.what();
1285           throw;
1286       }
1287       DEBTRACE( "-----------------End PyFuncNode::outputs-----------------" );
1288       Py_DECREF(result);
1289   }
1290   DEBTRACE( "++++++++++++++ End PyFuncNode::execute: " << getName() << " ++++++++++++++++++++" );
1291 }
1292
1293 Node *PyFuncNode::simpleClone(ComposedNode *father, bool editionOnly) const
1294 {
1295   return new PyFuncNode(*this,father);
1296 }
1297
1298 void PyFuncNode::createRemoteAdaptedPyInterpretor(Engines::Container_ptr objContainer)
1299 {
1300   if(!CORBA::is_nil(_pynode))
1301     _pynode->UnRegister();
1302   _pynode=objContainer->createPyNode(getName().c_str(),getScript().c_str());
1303 }
1304
1305 Engines::PyNodeBase_var PyFuncNode::retrieveDftRemotePyInterpretorIfAny(Engines::Container_ptr objContainer) const
1306 {
1307   Engines::PyNode_var ret(objContainer->getDefaultPyNode(getName().c_str()));
1308   if(!CORBA::is_nil(ret))
1309     {
1310       ret->Register();
1311     }
1312   return Engines::PyNodeBase::_narrow(ret);
1313 }
1314
1315 void PyFuncNode::assignRemotePyInterpretor(Engines::PyNodeBase_var remoteInterp)
1316 {
1317   if(!CORBA::is_nil(_pynode))
1318     {
1319       Engines::PyNode_var tmpp(Engines::PyNode::_narrow(remoteInterp));
1320       if(_pynode->_is_equivalent(tmpp))
1321         return ;
1322     }
1323   if(!CORBA::is_nil(_pynode))
1324     _pynode->UnRegister();
1325   _pynode=Engines::PyNode::_narrow(remoteInterp);
1326 }
1327
1328 Engines::PyNodeBase_var PyFuncNode::getRemoteInterpreterHandle()
1329 {
1330   return Engines::PyNodeBase::_narrow(_pynode);
1331 }
1332
1333 //! Create a new node of same type with a given name
1334 PyFuncNode* PyFuncNode::cloneNode(const std::string& name)
1335 {
1336   PyFuncNode* n=new PyFuncNode(name);
1337   n->setScript(_script);
1338   n->setFname(_fname);
1339   list<InputPort *>::iterator iter;
1340   for(iter = _setOfInputPort.begin(); iter != _setOfInputPort.end(); iter++)
1341     {
1342       InputPyPort *p=(InputPyPort *)*iter;
1343       n->edAddInputPort(p->getName(),p->edGetType());
1344     }
1345   list<OutputPort *>::iterator iter2;
1346   for(iter2 = _setOfOutputPort.begin(); iter2 != _setOfOutputPort.end(); iter2++)
1347     {
1348       OutputPyPort *p=(OutputPyPort *)*iter2;
1349       n->edAddOutputPort(p->getName(),p->edGetType());
1350     }
1351   return n;
1352 }
1353
1354 std::string PyFuncNode::getContainerLog()
1355 {
1356   return PythonEntry::GetContainerLog(_mode,_container,this);
1357 }
1358
1359 void PyFuncNode::shutdown(int level)
1360 {
1361   DEBTRACE("PyFuncNode::shutdown " << level);
1362   if(_mode=="local")return;
1363   if(_container)
1364     {
1365       if(!CORBA::is_nil(_pynode)) _pynode->UnRegister();
1366       _pynode=Engines::PyNode::_nil();
1367       _container->shutdown(level);
1368     }
1369 }
1370
1371 void PyFuncNode::imposeResource(const std::string& resource_name,
1372                                 const std::string& container_name)
1373 {
1374   if(!resource_name.empty() && !container_name.empty())
1375   {
1376     _imposedResource = resource_name;
1377     _imposedContainer = container_name;
1378   }
1379 }
1380
1381 bool PyFuncNode::canAcceptImposedResource()
1382 {
1383   return _container != nullptr && _container->canAcceptImposedResource();
1384 }