src/runtime/PythonNode.cxx

   1 // Copyright (C) 2006-2023  CEA, EDF
   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 "PythonCppUtils.hxx"
  25 #include "Container.hxx"
  26 #include "SalomeContainer.hxx"
  27 #include "SalomeHPContainer.hxx"
  28 #include "SalomeContainerTmpForHP.hxx"
  29 #include "ConversionException.hxx"
  30 #include "ReceiverFactory.hxx"
  31 #include "SenderByteImpl.hxx"
  32
  33 #include "PyStdout.hxx"
  34 #include <iostream>
  35 #include <memory>
  36 #include <sstream>
  37 #include <fstream>
  38
  39 #ifdef WIN32
  40 #include <process.h>
  41 #define getpid _getpid
  42 #endif
  43
  44 #if PY_VERSION_HEX < 0x02050000
  45 typedef int Py_ssize_t;
  46 #endif
  47
  48 //#define _DEVDEBUG_
  49 #include "YacsTrace.hxx"
  50
  51 using namespace YACS::ENGINE;
  52 using namespace std;
  53
  54 const char PythonEntry::SCRIPT_FOR_SIMPLE_SERIALIZATION[]="import pickle\n"
  55     "def pickleForVarSimplePyth2009(val):\n"
  56     "  return pickle.dumps(val,-1)\n"
  57     "\n";
  58
  59 PyObject *PythonEntry::_pyClsBigObject = nullptr;
  60
  61 const char PythonNode::IMPL_NAME[]="Python";
  62 const char PythonNode::KIND[]="Python";
  63
  64 const char PythonNode::SCRIPT_FOR_SERIALIZATION[]="import pickle\n"
  65     "def pickleForDistPyth2009(kws):\n"
  66     "  return pickle.dumps(((),kws),-1)\n"
  67     "\n"
  68     "def unPickleForDistPyth2009(st):\n"
  69     "  args=pickle.loads(st)\n"
  70     "  return args\n";
  71
  72 const char PythonNode::REMOTE_NAME[]="remote";
  73
  74 const char PythonNode::DPL_INFO_NAME[]="my_dpl_localization";
  75
  76 const char PyFuncNode::SCRIPT_FOR_SERIALIZATION[]="import pickle\n"
  77     "def pickleForDistPyth2009(*args,**kws):\n"
  78     "  return pickle.dumps((args,kws),-1)\n"
  79     "\n"
  80     "def unPickleForDistPyth2009(st):\n"
  81     "  args=pickle.loads(st)\n"
  82     "  return args\n";
  83
  84 static char SCRIPT_FOR_BIGOBJECT[]="import SALOME_PyNode\n"
  85     "BigObjectOnDiskBase = SALOME_PyNode.BigObjectOnDiskBase\n";
  86
  87 // pickle.load concurrency issue : see https://bugs.python.org/issue12680
  88 #if PY_VERSION_HEX < 0x03070000
  89 #include <mutex>
  90 static std::mutex data_mutex;
  91 #endif
  92
  93 PythonEntry::PythonEntry():_context(0),_pyfuncSer(0),_pyfuncUnser(0),_pyfuncSimpleSer(0)
  94 {
  95 }
  96
  97 PythonEntry::~PythonEntry()
  98 {
  99   AutoGIL agil;
 100   DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
 101   // not Py_XDECREF of _pyfuncUnser because it is returned by PyDict_GetItem -> borrowed
 102   // not Py_XDECREF of _pyfuncSer because it is returned by PyDict_GetItem -> borrowed
 103   Py_XDECREF(_context);
 104 }
 105
 106 void PythonEntry::loadRemoteContainer(InlineNode *reqNode)
 107 {
 108   DEBTRACE( "---------------PythonEntry::CommonRemoteLoad function---------------" );
 109   Container *container(reqNode->getContainer());
 110   bool isContAlreadyStarted(false);
 111   if(container)
 112     {
 113       try
 114       {
 115         if(hasImposedResource())
 116           container->start(reqNode, _imposedResource, _imposedContainer);
 117         else
 118         {
 119           isContAlreadyStarted=container->isAlreadyStarted(reqNode);
 120           if(!isContAlreadyStarted)
 121             container->start(reqNode);
 122         }
 123       }
 124       catch(Exception& e)
 125       {
 126           reqNode->setErrorDetails(e.what());
 127           throw e;
 128       }
 129     }
 130   else
 131     {
 132       std::string what("PythonEntry::CommonRemoteLoad : a load operation requested on \"");
 133       what+=reqNode->getName(); what+="\" with no container specified.";
 134       reqNode->setErrorDetails(what);
 135       throw Exception(what);
 136     }
 137 }
 138
 139 Engines::Container_var GetContainerObj(InlineNode *reqNode, bool& isStandardCont)
 140 {
 141   isStandardCont = false;
 142   Container *container(reqNode->getContainer());
 143   Engines::Container_var objContainer(Engines::Container::_nil());
 144   if(!container)
 145     throw YACS::Exception("No container specified !");
 146   SalomeContainer *containerCast0(dynamic_cast<SalomeContainer *>(container));
 147   SalomeHPContainer *containerCast1(dynamic_cast<SalomeHPContainer *>(container));
 148   if(containerCast0)
 149     {
 150       isStandardCont = true;
 151       objContainer=containerCast0->getContainerPtr(reqNode);
 152     }
 153   else if(containerCast1)
 154     {
 155       YACS::BASES::AutoCppPtr<SalomeContainerTmpForHP> tmpCont(SalomeContainerTmpForHP::BuildFrom(containerCast1,reqNode));
 156       objContainer=tmpCont->getContainerPtr(reqNode);
 157     }
 158   else
 159     throw YACS::Exception("Unrecognized type of container ! Salome one is expected for PythonNode/PyFuncNode !");
 160   if(CORBA::is_nil(objContainer))
 161     throw YACS::Exception("Container corba pointer is NULL for PythonNode !");
 162   return objContainer;
 163 }
 164
 165 Engines::Container_var PythonEntry::loadPythonAdapter(InlineNode *reqNode, bool& isInitializeRequested)
 166 {
 167   bool isStandardCont(true);
 168   Engines::Container_var objContainer(GetContainerObj(reqNode,isStandardCont));
 169   isInitializeRequested=false;
 170   try
 171   {
 172     Engines::PyNodeBase_var dftPyScript(retrieveDftRemotePyInterpretorIfAny(objContainer));
 173     if(CORBA::is_nil(dftPyScript))
 174     {
 175       isInitializeRequested=!isStandardCont;
 176       createRemoteAdaptedPyInterpretor(objContainer);
 177     }
 178     else
 179       assignRemotePyInterpretor(dftPyScript);
 180   }
 181   catch( const SALOME::SALOME_Exception& ex )
 182   {
 183       std::string msg="Exception on remote python node creation ";
 184       msg += '\n';
 185       msg += ex.details.text.in();
 186       reqNode->setErrorDetails(msg);
 187       throw Exception(msg);
 188   }
 189   Engines::PyNodeBase_var pynode(getRemoteInterpreterHandle());
 190   if(CORBA::is_nil(pynode))
 191     throw Exception("In PythonNode the ref in NULL ! ");
 192   return objContainer;
 193 }
 194
 195 void PythonEntry::loadRemoteContext(InlineNode *reqNode, Engines::Container_ptr objContainer, bool isInitializeRequested)
 196 {
 197   Container *container(reqNode->getContainer());
 198   Engines::PyNodeBase_var pynode(getRemoteInterpreterHandle());
 199   ///
 200   {
 201 #if PY_VERSION_HEX < 0x03070000
 202     std::unique_lock<std::mutex> lock(data_mutex);
 203 #endif
 204     AutoGIL agil;
 205     const char *picklizeScript(getSerializationScript());
 206     PyObject *res=PyRun_String(picklizeScript,Py_file_input,_context,_context);
 207     PyObject *res2(PyRun_String(SCRIPT_FOR_SIMPLE_SERIALIZATION,Py_file_input,_context,_context));
 208     if(res == NULL || res2==NULL)
 209       {
 210         std::string errorDetails;
 211         PyObject* new_stderr = newPyStdOut(errorDetails);
 212         reqNode->setErrorDetails(errorDetails);
 213         PySys_SetObject((char*)"stderr", new_stderr);
 214         PyErr_Print();
 215         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 216         Py_DECREF(new_stderr);
 217         throw Exception("Error during load");
 218       }
 219     Py_DECREF(res); Py_DECREF(res2);
 220     AutoPyRef res3(PyRun_String(SCRIPT_FOR_BIGOBJECT,Py_file_input,_context,_context));
 221     _pyfuncSer=PyDict_GetItemString(_context,"pickleForDistPyth2009");
 222     _pyfuncUnser=PyDict_GetItemString(_context,"unPickleForDistPyth2009");
 223     _pyfuncSimpleSer=PyDict_GetItemString(_context,"pickleForVarSimplePyth2009");
 224     if(! _pyClsBigObject )
 225     {
 226       _pyClsBigObject=PyDict_GetItemString(_context,"BigObjectOnDiskBase");
 227       Py_INCREF(_pyClsBigObject);
 228     }
 229     if(_pyfuncSer == NULL)
 230       {
 231         std::string errorDetails;
 232         PyObject *new_stderr(newPyStdOut(errorDetails));
 233         reqNode->setErrorDetails(errorDetails);
 234         PySys_SetObject((char*)"stderr", new_stderr);
 235         PyErr_Print();
 236         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 237         Py_DECREF(new_stderr);
 238         throw Exception("Error during load");
 239       }
 240     if(_pyfuncUnser == NULL)
 241       {
 242         std::string errorDetails;
 243         PyObject *new_stderr(newPyStdOut(errorDetails));
 244         reqNode->setErrorDetails(errorDetails);
 245         PySys_SetObject((char*)"stderr", new_stderr);
 246         PyErr_Print();
 247         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 248         Py_DECREF(new_stderr);
 249         throw Exception("Error during load");
 250       }
 251     if(_pyfuncSimpleSer == NULL)
 252       {
 253         std::string errorDetails;
 254         PyObject *new_stderr(newPyStdOut(errorDetails));
 255         reqNode->setErrorDetails(errorDetails);
 256         PySys_SetObject((char*)"stderr", new_stderr);
 257         PyErr_Print();
 258         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 259         Py_DECREF(new_stderr);
 260         throw Exception("Error during load");
 261       }
 262   }
 263   if(isInitializeRequested)
 264     {//This one is called only once at initialization in the container if an init-script is specified.
 265       try
 266       {
 267           std::string zeInitScriptKey(container->getProperty(HomogeneousPoolContainer::INITIALIZE_SCRIPT_KEY));
 268           if(!zeInitScriptKey.empty())
 269             pynode->executeAnotherPieceOfCode(zeInitScriptKey.c_str());
 270       }
 271       catch( const SALOME::SALOME_Exception& ex )
 272       {
 273           std::string msg="Exception on PythonNode::loadRemote python invocation of initializisation py script !";
 274           msg += '\n';
 275           msg += ex.details.text.in();
 276           reqNode->setErrorDetails(msg);
 277           throw Exception(msg);
 278       }
 279       DEBTRACE( "---------------End PyNode::loadRemote function---------------" );
 280     }
 281 }
 282
 283 std::string PythonEntry::GetContainerLog(const std::string& mode, Container *container, const Task *askingTask)
 284 {
 285   if(mode=="local")
 286     return "";
 287
 288   std::string msg;
 289   try
 290   {
 291       SalomeContainer *containerCast(dynamic_cast<SalomeContainer *>(container));
 292       SalomeHPContainer *objContainer2(dynamic_cast<SalomeHPContainer *>(container));
 293       if(containerCast)
 294         {
 295           Engines::Container_var objContainer(containerCast->getContainerPtr(askingTask));
 296           CORBA::String_var logname = objContainer->logfilename();
 297           DEBTRACE(logname);
 298           msg=logname;
 299           std::string::size_type pos = msg.find(":");
 300           msg=msg.substr(pos+1);
 301         }
 302       else if(objContainer2)
 303         {
 304           msg="Remote PythonNode is on HP Container : no log because no info of the location by definition of HP Container !";
 305         }
 306       else
 307         {
 308           msg="Not implemented yet for container log for that type of container !";
 309         }
 310   }
 311   catch(...)
 312   {
 313       msg = "Container no longer reachable";
 314   }
 315   return msg;
 316 }
 317
 318 void PythonEntry::commonRemoteLoad(InlineNode *reqNode)
 319 {
 320   loadRemoteContainer(reqNode);
 321   bool isInitializeRequested;
 322   Engines::Container_var objContainer(loadPythonAdapter(reqNode,isInitializeRequested));
 323   loadRemoteContext(reqNode,objContainer,isInitializeRequested);
 324 }
 325
 326 bool PythonEntry::hasImposedResource()const
 327 {
 328   return !_imposedResource.empty() && !_imposedContainer.empty();
 329 }
 330
 331 bool PythonEntry::IsProxy( PyObject *ob )
 332 {
 333   if(!_pyClsBigObject)
 334     return false;
 335   return PyObject_IsInstance( ob, _pyClsBigObject) == 1;
 336 }
 337
 338 bool PythonEntry::GetDestroyStatus( PyObject *ob )
 339 {
 340   if(!_pyClsBigObject)
 341     return false;
 342   if( PyObject_IsInstance( ob, _pyClsBigObject) == 1 )
 343   {
 344     AutoPyRef unlinkOnDestructor = PyObject_GetAttrString(ob,"getDestroyStatus");
 345     AutoPyRef tmp = PyObject_CallFunctionObjArgs(unlinkOnDestructor,nullptr);
 346     if( PyBool_Check(tmp.get()) )
 347     {
 348       return tmp.get() == Py_True;
 349     }
 350     return false;
 351   }
 352   return false;
 353 }
 354
 355 void PythonEntry::IfProxyDoSomething( PyObject *ob, const char *meth )
 356 {
 357   if(!_pyClsBigObject)
 358     return ;
 359   if( PyObject_IsInstance( ob, _pyClsBigObject) == 1 )
 360   {
 361     AutoPyRef unlinkOnDestructor = PyObject_GetAttrString(ob,meth);
 362     AutoPyRef tmp = PyObject_CallFunctionObjArgs(unlinkOnDestructor,nullptr);
 363   }
 364 }
 365
 366 void PythonEntry::DoNotTouchFileIfProxy( PyObject *ob )
 367 {
 368   IfProxyDoSomething(ob,"doNotTouchFile");
 369 }
 370
 371 void PythonEntry::UnlinkOnDestructorIfProxy( PyObject *ob )
 372 {
 373   IfProxyDoSomething(ob,"unlinkOnDestructor");
 374 }
 375
 376 PythonNode::PythonNode(const PythonNode& other, ComposedNode *father):InlineNode(other,father),_autoSqueeze(other._autoSqueeze)
 377 {
 378   _pynode = Engines::PyScriptNode::_nil();
 379   _implementation=IMPL_NAME;
 380   {
 381     AutoGIL agil;
 382     _context=PyDict_New();
 383     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
 384       {
 385         stringstream msg;
 386         msg << "Impossible to set builtins" << __FILE__ << ":" << __LINE__;
 387         _errorDetails=msg.str();
 388         throw Exception(msg.str());
 389       }
 390   }
 391 }
 392
 393 PythonNode::PythonNode(const std::string& name):InlineNode(name)
 394 {
 395   _pynode = Engines::PyScriptNode::_nil();
 396   _implementation=IMPL_NAME;
 397   {
 398     AutoGIL agil;
 399     _context=PyDict_New();
 400     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
 401       {
 402         stringstream msg;
 403         msg << "Impossible to set builtins" << __FILE__ << ":" << __LINE__;
 404         _errorDetails=msg.str();
 405         throw Exception(msg.str());
 406       }
 407   }
 408 }
 409
 410 PythonNode::~PythonNode()
 411 {
 412   freeKernelPynode();
 413 }
 414
 415 void PythonNode::checkBasicConsistency() const
 416 {
 417   DEBTRACE("checkBasicConsistency");
 418   InlineNode::checkBasicConsistency();
 419   {
 420     AutoGIL agil;
 421     PyObject* res;
 422     res=Py_CompileString(_script.c_str(),getName().c_str(),Py_file_input);
 423     if(res == NULL)
 424       {
 425         std::string error="";
 426         PyObject* new_stderr = newPyStdOut(error);
 427         PySys_SetObject((char*)"stderr", new_stderr);
 428         PyErr_Print();
 429         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 430         Py_DECREF(new_stderr);
 431         throw Exception(error);
 432       }
 433     else
 434       Py_XDECREF(res);
 435   }
 436 }
 437
 438 void PythonNode::load()
 439 {
 440   DEBTRACE( "---------------PyNode::load function---------------" );
 441   if(_mode==PythonNode::REMOTE_NAME)
 442     loadRemote();
 443   else
 444     loadLocal();
 445 }
 446
 447 void PythonNode::loadLocal()
 448 {
 449   DEBTRACE( "---------------PyNode::loadLocal function---------------" );
 450   // do nothing
 451 }
 452
 453 void PythonNode::loadRemote()
 454 {
 455   commonRemoteLoad(this);
 456 }
 457
 458 void PythonNode::execute()
 459 {
 460   if(_mode==PythonNode::REMOTE_NAME)
 461     executeRemote();
 462   else
 463     executeLocal();
 464 }
 465
 466 void PythonNode::executeRemote()
 467 {
 468   DEBTRACE( "++++++++++++++ PyNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
 469   if(!_pyfuncSer)
 470     throw Exception("PythonNode badly loaded");
 471   //
 472   if(dynamic_cast<HomogeneousPoolContainer *>(getContainer()))
 473     {
 474       bool dummy;
 475       loadPythonAdapter(this,dummy);
 476       _pynode->assignNewCompiledCode(getScript().c_str());
 477     }
 478   // not managed by unique_ptr here because destructed by the order of client.
 479   SenderByteImpl *serializationInputCorba = nullptr;
 480   AutoPyRef serializationInput;
 481   {
 482 #if PY_VERSION_HEX < 0x03070000
 483       std::unique_lock<std::mutex> lock(data_mutex);
 484 #endif
 485       AutoGIL agil;
 486       PyObject *args(0),*ob(0);
 487       //===========================================================================
 488       // Get inputs in input ports, build a Python dict and pickle it
 489       //===========================================================================
 490       args = PyDict_New();
 491       std::list<InputPort *>::iterator iter2;
 492       int pos(0);
 493       for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); ++iter2)
 494         {
 495           InputPyPort *p=(InputPyPort *)*iter2;
 496           ob=p->getPyObj();
 497           PyDict_SetItemString(args,p->getName().c_str(),ob);
 498           pos++;
 499         }
 500 #ifdef _DEVDEBUG_
 501       PyObject_Print(args,stderr,Py_PRINT_RAW);
 502       std::cerr << endl;
 503 #endif
 504       serializationInput.set(PyObject_CallFunctionObjArgs(_pyfuncSer,args,nullptr));
 505       Py_DECREF(args);
 506       //The pickled string may contain NULL characters so use PyString_AsStringAndSize
 507       char *serializationInputC(nullptr);
 508       Py_ssize_t len;
 509       if (PyBytes_AsStringAndSize(serializationInput, &serializationInputC, &len))
 510         throw Exception("DistributedPythonNode problem in python pickle");
 511       // no copy here. The C byte array of Python is taken  as this into CORBA sequence to avoid copy
 512       serializationInputCorba = new SenderByteImpl(serializationInputC,len);
 513   }
 514
 515   //get the list of output argument names
 516   std::list<OutputPort *>::iterator iter;
 517   Engines::listofstring myseq;
 518   myseq.length(getNumberOfOutputPorts());
 519   int pos=0;
 520   for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); ++iter)
 521     {
 522       OutputPyPort *p=(OutputPyPort *)*iter;
 523       myseq[pos]=p->getName().c_str();
 524       DEBTRACE( "port name: " << p->getName() );
 525       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 526       DEBTRACE( "port pos : " << pos );
 527       pos++;
 528     }
 529   //===========================================================================
 530   // Execute in remote Python node
 531   //===========================================================================
 532   DEBTRACE( "-----------------starting remote python invocation-----------------" );
 533   std::unique_ptr<SALOME::SenderByteSeq> resultCorba;
 534   try
 535     {
 536       //pass outargsname and dict serialized
 537       SALOME::SenderByte_var serializationInputRef = serializationInputCorba->_this();
 538       _pynode->executeFirst(serializationInputRef);
 539       //serializationInput and serializationInputCorba are no more needed for server. Release it.
 540       serializationInput.set(nullptr);
 541       resultCorba.reset( _pynode->executeSecond(myseq) );
 542     }
 543   catch( const SALOME::SALOME_Exception& ex )
 544     {
 545       std::ostringstream msg; msg << "Exception on remote python invocation" << std::endl << ex.details.text.in() << std::endl;
 546       msg << "PyScriptNode CORBA ref : ";
 547       {
 548         CORBA::ORB_ptr orb(getSALOMERuntime()->getOrb());
 549         if(!CORBA::is_nil(orb))
 550         {
 551           CORBA::String_var IOR(orb->object_to_string(_pynode));
 552           msg << IOR;
 553         }
 554       }
 555       msg << std::endl;
 556       _errorDetails=msg.str();
 557       throw Exception(msg.str());
 558     }
 559   catch(CORBA::COMM_FAILURE& ex)
 560     {
 561       std::ostringstream msg;
 562       msg << "Exception on remote python invocation." << std::endl ;
 563       msg << "Caught system exception COMM_FAILURE -- unable to contact the "
 564           << "object." << std::endl;
 565       _errorDetails=msg.str();
 566       throw Exception(msg.str());
 567     }
 568   catch(CORBA::SystemException& ex)
 569     {
 570       std::ostringstream msg;
 571       msg << "Exception on remote python invocation." << std::endl ;
 572       msg << "Caught a CORBA::SystemException." ;
 573       CORBA::Any tmp;
 574       tmp <<= ex;
 575       CORBA::TypeCode_var tc = tmp.type();
 576       const char *p = tc->name();
 577       if ( *p != '\0' )
 578         msg <<p;
 579       else
 580         msg  << tc->id();
 581       msg << std::endl;
 582       _errorDetails=msg.str();
 583       throw Exception(msg.str());
 584     }
 585   catch(CORBA::Exception& ex)
 586     {
 587       std::ostringstream msg;
 588       msg << "Exception on remote python invocation." << std::endl ;
 589       msg << "Caught CORBA::Exception. " ;
 590       CORBA::Any tmp;
 591       tmp <<= ex;
 592       CORBA::TypeCode_var tc = tmp.type();
 593       const char *p = tc->name();
 594       if ( *p != '\0' )
 595         msg <<p;
 596       else
 597         msg  << tc->id();
 598       msg << std::endl;
 599       _errorDetails=msg.str();
 600       throw Exception(msg.str());
 601     }
 602   catch(omniORB::fatalException& fe)
 603     {
 604       std::ostringstream msg;
 605       msg << "Exception on remote python invocation." << std::endl ;
 606       msg << "Caught omniORB::fatalException:" << std::endl;
 607       msg << "  file: " << fe.file() << std::endl;
 608       msg << "  line: " << fe.line() << std::endl;
 609       msg << "  mesg: " << fe.errmsg() << std::endl;
 610       _errorDetails=msg.str();
 611       throw Exception(msg.str());
 612     }
 613   DEBTRACE( "-----------------end of remote python invocation-----------------" );
 614   //===========================================================================
 615   // Get results, unpickle and put them in output ports
 616   //===========================================================================
 617   {
 618 #if PY_VERSION_HEX < 0x03070000
 619       std::unique_lock<std::mutex> lock(data_mutex);
 620 #endif
 621       AutoGIL agil;
 622       DEBTRACE( "-----------------PythonNode::outputs-----------------" );
 623       int nres( resultCorba->length() );
 624
 625       if(getNumberOfOutputPorts() != nres)
 626         {
 627           std::string msg="Number of output arguments : Mismatch between definition and execution";
 628           _errorDetails=msg;
 629           throw Exception(msg);
 630         }
 631       pos=0;
 632       try
 633       {
 634           for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); ++iter)
 635             {
 636               OutputPyPort *p=(OutputPyPort *)*iter;
 637               DEBTRACE( "port name: " << p->getName() );
 638               DEBTRACE( "port kind: " << p->edGetType()->kind() );
 639               DEBTRACE( "port pos : " << pos );
 640               SALOME::SenderByte_var elt = (*resultCorba)[pos];
 641               SeqByteReceiver recv(elt);
 642               unsigned long length = 0;
 643               char *resultCorbaC = recv.data(length);
 644               {
 645                 AutoPyRef resultPython=PyMemoryView_FromMemory(resultCorbaC,length,PyBUF_READ);
 646                 AutoPyRef args = PyTuple_New(1);
 647                 PyTuple_SetItem(args,0,resultPython.retn());
 648                 AutoPyRef ob = PyObject_CallObject(_pyfuncUnser,args);
 649                 if (!ob)
 650                 {
 651                   std::stringstream msg;
 652                   msg << "Conversion with pickle of output ports failed !";
 653                   msg << " : " << __FILE__ << ":" << __LINE__;
 654                   _errorDetails=msg.str();
 655                   throw YACS::ENGINE::ConversionException(msg.str());
 656                 }
 657                 UnlinkOnDestructorIfProxy(ob);
 658                 p->put( ob );
 659               }
 660               pos++;
 661             }
 662       }
 663       catch(ConversionException& ex)
 664       {
 665           _errorDetails=ex.what();
 666           throw;
 667       }
 668       if(_autoSqueeze)
 669         squeezeMemoryRemote();
 670   }
 671   //
 672   if(!isUsingPythonCache())
 673   {
 674     freeKernelPynode();
 675     bool dummy;
 676     Engines::Container_var cont(GetContainerObj(this,dummy));
 677     cont->removePyScriptNode(getName().c_str());
 678   }
 679   DEBTRACE( "++++++++++++++ ENDOF PyNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
 680 }
 681
 682 void PythonNode::ExecuteLocalInternal(const std::string& codeStr, PyObject *context, std::string& errorDetails)
 683 {
 684   DEBTRACE(  code );
 685   DEBTRACE( "context refcnt: " << context->ob_refcnt );
 686   std::ostringstream stream;
 687   stream << "/tmp/PythonNode_";
 688   stream << getpid();
 689   AutoPyRef code=Py_CompileString(codeStr.c_str(), stream.str().c_str(), Py_file_input);
 690   if(code == NULL)
 691   {
 692     errorDetails="";
 693     AutoPyRef new_stderr = newPyStdOut(errorDetails);
 694     PySys_SetObject((char*)"stderr", new_stderr);
 695     PyErr_Print();
 696     PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 697     throw YACS::Exception("Error during execution");
 698   }
 699   {
 700     AutoPyRef res = PyEval_EvalCode(  code, context, context);
 701   }
 702   DEBTRACE( "context refcnt: " << context->ob_refcnt );
 703   fflush(stdout);
 704   fflush(stderr);
 705   if(PyErr_Occurred ())
 706   {
 707     errorDetails="";
 708     AutoPyRef new_stderr = newPyStdOut(errorDetails);
 709     PySys_SetObject((char*)"stderr", new_stderr);
 710     ofstream errorfile(stream.str().c_str());
 711     if (errorfile.is_open())
 712       {
 713         errorfile << codeStr;
 714         errorfile.close();
 715       }
 716     PyErr_Print();
 717     PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 718     throw YACS::Exception("Error during execution");
 719   }
 720 }
 721
 722 void PythonNode::executeLocalInternal(const std::string& codeStr)
 723 {
 724   ExecuteLocalInternal(codeStr,_context,_errorDetails);
 725 }
 726
 727 void PythonNode::executeLocal()
 728 {
 729   DEBTRACE( "++++++++++++++ PyNode::executeLocal: " << getName() << " ++++++++++++++++++++" );
 730   {
 731     AutoGIL agil;
 732     std::ostringstream unpxy; unpxy << "from SALOME_PyNode import UnProxyObjectSimpleLocal" << std::endl;
 733     DEBTRACE( "---------------PyNode::inputs---------------" );
 734     list<InputPort *>::iterator iter2;
 735     for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++)
 736       {
 737         InputPyPort *p=(InputPyPort *)*iter2;
 738         DEBTRACE( "port name: " << p->getName() );
 739         DEBTRACE( "port kind: " << p->edGetType()->kind() );
 740         PyObject* ob=p->getPyObj();
 741         DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
 742         unpxy << p->getName() << " = UnProxyObjectSimpleLocal( " << p->getName() << " )" << std::endl;
 743 #ifdef _DEVDEBUG_
 744         PyObject_Print(ob,stderr,Py_PRINT_RAW);
 745         cerr << endl;
 746 #endif
 747         int ier=PyDict_SetItemString(_context,p->getName().c_str(),ob);
 748         DEBTRACE( "after PyDict_SetItemString:ob refcnt: " << ob->ob_refcnt );
 749       }
 750
 751     DEBTRACE( "---------------End PyNode::inputs---------------" );
 752
 753     //calculation
 754     DEBTRACE( "----------------PyNode::calculation---------------" );
 755
 756     if( ! getSqueezeStatus() )
 757       executeLocalInternal( unpxy.str() );
 758
 759     executeLocalInternal( _script );
 760
 761     DEBTRACE( "-----------------PyNode::outputs-----------------" );
 762     list<OutputPort *>::iterator iter;
 763     try
 764     {
 765         for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
 766           {
 767             OutputPyPort *p=(OutputPyPort *)*iter;
 768             DEBTRACE( "port name: " << p->getName() );
 769             DEBTRACE( "port kind: " << p->edGetType()->kind() );
 770             PyObject *ob=PyDict_GetItemString(_context,p->getName().c_str());
 771             if(ob==NULL)
 772               {
 773                 std::string msg="Error during execution: there is no variable ";
 774                 msg=msg+p->getName()+" in node context";
 775                 _errorDetails=msg;
 776                 throw Exception(msg);
 777               }
 778             DEBTRACE( "PyNode::outputs::ob refcnt: " << ob->ob_refcnt );
 779 #ifdef _DEVDEBUG_
 780             PyObject_Print(ob,stderr,Py_PRINT_RAW);
 781             cerr << endl;
 782 #endif
 783             p->put(ob);
 784             if(!isUsingPythonCache())
 785               PyDict_DelItemString(_context,p->getName().c_str());
 786           }
 787     }
 788     catch(ConversionException& ex)
 789     {
 790         _errorDetails=ex.what();
 791         throw;
 792     }
 793     if(_autoSqueeze)
 794       squeezeMemory();
 795     DEBTRACE( "-----------------End PyNode::outputs-----------------" );
 796     if(!isUsingPythonCache())
 797     {
 798       for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++)
 799       {
 800         AutoPyRef pStr = PyUnicode_FromString( (*iter2)->getName().c_str() );
 801         if( PyDict_Contains(_context,pStr) == 1 )
 802           { PyDict_DelItem(_context,pStr); }
 803       }
 804     }
 805   }
 806   DEBTRACE( "++++++++++++++ End PyNode::execute: " << getName() << " ++++++++++++++++++++" );
 807 }
 808
 809 void PythonNode::squeezeMemorySafe()
 810 {
 811   AutoGIL agil;
 812   if(_mode==PythonNode::REMOTE_NAME)
 813     this->squeezeMemoryRemote();
 814   else
 815     this->squeezeMemory();
 816 }
 817
 818 void PythonNode::squeezeMemory()
 819 {
 820   for(auto p : _setOfInputPort)
 821     {
 822       PyDict_DelItemString(_context,p->getName().c_str());
 823       InputPyPort *p2(static_cast<InputPyPort *>(p));
 824       if(p2->canSafelySqueezeMemory())
 825         p2->put(Py_None);
 826     }
 827   for(auto p : _setOfOutputPort)
 828     {
 829       PyDict_DelItemString(_context,p->getName().c_str());
 830       OutputPyPort *p2(static_cast<OutputPyPort *>(p));
 831       p2->putWithoutForward(Py_None);
 832     }
 833 }
 834
 835 void PythonNode::squeezeMemoryRemote()
 836 {
 837   for(auto p : _setOfInputPort)
 838     {
 839       InputPyPort *p2(static_cast<InputPyPort *>(p));
 840       if(p2->canSafelySqueezeMemory())
 841         p2->put(Py_None);
 842     }
 843   for(auto p : _setOfOutputPort)
 844     {
 845       OutputPyPort *p2(static_cast<OutputPyPort *>(p));
 846       p2->putWithoutForward(Py_None);
 847     }
 848 }
 849
 850 std::string PythonNode::getContainerLog()
 851 {
 852   return PythonEntry::GetContainerLog(_mode,_container,this);
 853 }
 854
 855 void PythonNode::shutdown(int level)
 856 {
 857   DEBTRACE("PythonNode::shutdown " << level);
 858   if(_mode=="local")return;
 859   if(_container)
 860     {
 861       freeKernelPynode();
 862       _container->shutdown(level);
 863     }
 864 }
 865
 866 void PythonNode::imposeResource(const std::string& resource_name,
 867                                 const std::string& container_name)
 868 {
 869   if(!resource_name.empty() && !container_name.empty())
 870   {
 871     _imposedResource = resource_name;
 872     _imposedContainer = container_name;
 873   }
 874 }
 875
 876 bool PythonNode::canAcceptImposedResource()
 877 {
 878   return _container != nullptr && _container->canAcceptImposedResource();
 879 }
 880
 881 bool PythonNode::hasImposedResource()const
 882 {
 883   return PythonEntry::hasImposedResource();
 884 }
 885
 886 std::string PythonNode::pythonEntryName()const
 887 {
 888   if(isUsingPythonCache())
 889     return "DEFAULT_NAME_FOR_UNIQUE_PYTHON_NODE_ENTRY";
 890   else
 891     return getName();
 892 }
 893
 894 bool PythonNode::isUsingPythonCache()const
 895 {
 896   bool found = false;
 897   if(_container)
 898     found = _container->isUsingPythonCache();
 899   return found;
 900 }
 901
 902 void PythonNode::freeKernelPynode()
 903 {
 904   if(!CORBA::is_nil(_pynode))
 905   {
 906     try
 907     {
 908       _pynode->UnRegister();
 909     }
 910     catch(...)
 911     {
 912       DEBTRACE("Trouble when pynode->UnRegister!")
 913     }
 914     _pynode = Engines::PyScriptNode::_nil();
 915   }
 916 }
 917
 918 Node *PythonNode::simpleClone(ComposedNode *father, bool editionOnly) const
 919 {
 920   return new PythonNode(*this,father);
 921 }
 922
 923 void PythonNode::createRemoteAdaptedPyInterpretor(Engines::Container_ptr objContainer)
 924 {
 925   freeKernelPynode();
 926   _pynode=objContainer->createPyScriptNode(pythonEntryName().c_str(),getScript().c_str());
 927   _pynode->Register();
 928 }
 929
 930 Engines::PyNodeBase_var PythonNode::retrieveDftRemotePyInterpretorIfAny(Engines::Container_ptr objContainer) const
 931 {
 932   Engines::PyScriptNode_var ret(objContainer->getDefaultPyScriptNode(pythonEntryName().c_str()));
 933   if(!CORBA::is_nil(ret))
 934     {
 935       ret->Register();
 936     }
 937   return Engines::PyNodeBase::_narrow(ret);
 938 }
 939
 940 void PythonNode::assignRemotePyInterpretor(Engines::PyNodeBase_var remoteInterp)
 941 {
 942   if(CORBA::is_nil(_pynode))
 943     _pynode=Engines::PyScriptNode::_narrow(remoteInterp);
 944   else
 945   {
 946     Engines::PyScriptNode_var tmpp(Engines::PyScriptNode::_narrow(remoteInterp));
 947     if(!_pynode->_is_equivalent(tmpp))
 948     {
 949       freeKernelPynode();
 950       _pynode=Engines::PyScriptNode::_narrow(remoteInterp);
 951     }
 952   }
 953   _pynode->assignNewCompiledCode(getScript().c_str());
 954 }
 955
 956 Engines::PyNodeBase_var PythonNode::getRemoteInterpreterHandle()
 957 {
 958   return Engines::PyNodeBase::_narrow(_pynode);
 959 }
 960
 961 //! Create a new node of same type with a given name
 962 PythonNode* PythonNode::cloneNode(const std::string& name)
 963 {
 964   PythonNode* n=new PythonNode(name);
 965   n->setScript(_script);
 966   list<InputPort *>::iterator iter;
 967   for(iter = _setOfInputPort.begin(); iter != _setOfInputPort.end(); iter++)
 968     {
 969       InputPyPort *p=(InputPyPort *)*iter;
 970       DEBTRACE( "port name: " << p->getName() );
 971       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 972       n->edAddInputPort(p->getName(),p->edGetType());
 973     }
 974   list<OutputPort *>::iterator iter2;
 975   for(iter2 = _setOfOutputPort.begin(); iter2 != _setOfOutputPort.end(); iter2++)
 976     {
 977       OutputPyPort *p=(OutputPyPort *)*iter2;
 978       DEBTRACE( "port name: " << p->getName() );
 979       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 980       n->edAddOutputPort(p->getName(),p->edGetType());
 981     }
 982   return n;
 983 }
 984
 985 void PythonNode::applyDPLScope(ComposedNode *gfn)
 986 {
 987   std::vector< std::pair<std::string,int> > ret(getDPLScopeInfo(gfn));
 988   if(ret.empty())
 989     return ;
 990   //
 991   PyObject *ob(0);
 992   {
 993     AutoGIL agil;
 994     std::size_t sz(ret.size());
 995     ob=PyList_New(sz);
 996     for(std::size_t i=0;i<sz;i++)
 997       {
 998         const std::pair<std::string,int>& p(ret[i]);
 999         PyObject *elt(PyTuple_New(2));
1000         PyTuple_SetItem(elt,0,PyUnicode_FromString(p.first.c_str()));
1001         PyTuple_SetItem(elt,1,PyLong_FromLong(p.second));
1002         PyList_SetItem(ob,i,elt);
1003       }
1004   }
1005   if(_mode==REMOTE_NAME)
1006     {
1007       Engines::pickledArgs_var serializationInputCorba(new Engines::pickledArgs);
1008       {
1009         AutoGIL agil;
1010         PyObject *serializationInput(PyObject_CallFunctionObjArgs(_pyfuncSimpleSer,ob,NULL));
1011         Py_XDECREF(ob);
1012         char *serializationInputC(0);
1013         Py_ssize_t len;
1014         if (PyBytes_AsStringAndSize(serializationInput, &serializationInputC, &len))
1015           throw Exception("DistributedPythonNode problem in python pickle");
1016         serializationInputCorba->length(len);
1017         for(int i=0; i < len ; i++)
1018           serializationInputCorba[i]=serializationInputC[i];
1019         Py_XDECREF(serializationInput);
1020       }
1021       _pynode->defineNewCustomVar(DPL_INFO_NAME,serializationInputCorba);
1022     }
1023   else
1024     {
1025       AutoGIL agil;
1026       PyDict_SetItemString(_context,DPL_INFO_NAME,ob);
1027       Py_XDECREF(ob);
1028     }
1029 }
1030
1031 PyFuncNode::PyFuncNode(const PyFuncNode& other, ComposedNode *father):InlineFuncNode(other,father),_pyfunc(0)
1032 {
1033   _implementation = PythonNode::IMPL_NAME;
1034   {
1035     AutoGIL agil;
1036     _context=PyDict_New();
1037     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1038     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
1039       {
1040         stringstream msg;
1041         msg << "Not possible to set builtins" << __FILE__ << ":" << __LINE__;
1042         _errorDetails=msg.str();
1043         throw Exception(msg.str());
1044       }
1045   }
1046 }
1047
1048 PyFuncNode::PyFuncNode(const std::string& name): InlineFuncNode(name),_pyfunc(0)
1049 {
1050
1051   _implementation = PythonNode::IMPL_NAME;
1052   DEBTRACE( "PyFuncNode::PyFuncNode " << name );
1053   {
1054     AutoGIL agil;
1055     _context=PyDict_New();
1056     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1057     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
1058       {
1059         stringstream msg;
1060         msg << "Not possible to set builtins" << __FILE__ << ":" << __LINE__;
1061         _errorDetails=msg.str();
1062         throw Exception(msg.str());
1063       }
1064   }
1065 }
1066
1067 PyFuncNode::~PyFuncNode()
1068 {
1069   if(!CORBA::is_nil(_pynode))
1070     {
1071       _pynode->UnRegister();
1072     }
1073 }
1074
1075 void PyFuncNode::init(bool start)
1076 {
1077   initCommonPartWithoutStateManagement(start);
1078   if(_state == YACS::DISABLED)
1079     {
1080       exDisabledState(); // to refresh propagation of DISABLED state
1081       return ;
1082     }
1083   if(start) //complete initialization
1084     setState(YACS::READY);
1085   else if(_state > YACS::LOADED)// WARNING FuncNode has internal vars (CEA usecase) ! Partial initialization (inside a loop). Exclusivity of funcNode.
1086     setState(YACS::TORECONNECT);
1087 }
1088
1089 void PyFuncNode::checkBasicConsistency() const
1090 {
1091   DEBTRACE("checkBasicConsistency");
1092   InlineFuncNode::checkBasicConsistency();
1093   {
1094     AutoGIL agil;
1095     PyObject* res;
1096     res=Py_CompileString(_script.c_str(),getName().c_str(),Py_file_input);
1097     if(res == NULL)
1098       {
1099         std::string error="";
1100         PyObject* new_stderr = newPyStdOut(error);
1101         PySys_SetObject((char*)"stderr", new_stderr);
1102         PyErr_Print();
1103         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1104         Py_DECREF(new_stderr);
1105         throw Exception(error);
1106       }
1107     else
1108       Py_XDECREF(res);
1109   }
1110 }
1111
1112 void PyFuncNode::load()
1113 {
1114   DEBTRACE( "---------------PyfuncNode::load function---------------" );
1115   if(_mode==PythonNode::REMOTE_NAME)
1116     loadRemote();
1117   else
1118     loadLocal();
1119 }
1120
1121 void PyFuncNode::loadRemote()
1122 {
1123   commonRemoteLoad(this);
1124 }
1125
1126 void PyFuncNode::loadLocal()
1127 {
1128   DEBTRACE( "---------------PyFuncNode::load function " << getName() << " ---------------" );
1129   DEBTRACE(  _script );
1130
1131 #ifdef _DEVDEBUG_
1132   list<OutputPort *>::iterator iter;
1133   for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
1134     {
1135       OutputPyPort *p=(OutputPyPort *)*iter;
1136       DEBTRACE( "port name: " << p->getName() );
1137       DEBTRACE( "port kind: " << p->edGetType()->kind() );
1138     }
1139 #endif
1140
1141   {
1142     AutoGIL agil;
1143     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1144
1145     std::ostringstream stream;
1146     stream << "/tmp/PythonNode_";
1147     stream << getpid();
1148
1149     PyObject* code=Py_CompileString(_script.c_str(), stream.str().c_str(), Py_file_input);
1150     if(code == NULL)
1151       {
1152         _errorDetails="";
1153         PyObject* new_stderr = newPyStdOut(_errorDetails);
1154         PySys_SetObject((char*)"stderr", new_stderr);
1155         PyErr_Print();
1156         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1157         Py_DECREF(new_stderr);
1158         throw Exception("Error during execution");
1159       }
1160     PyObject *res = PyEval_EvalCode( code, _context, _context);
1161     Py_DECREF(code);
1162     Py_XDECREF(res);
1163
1164     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1165     if(PyErr_Occurred ())
1166       {
1167         _errorDetails="";
1168         PyObject* new_stderr = newPyStdOut(_errorDetails);
1169         PySys_SetObject((char*)"stderr", new_stderr);
1170         ofstream errorfile(stream.str().c_str());
1171         if (errorfile.is_open())
1172           {
1173             errorfile << _script;
1174             errorfile.close();
1175           }
1176         PyErr_Print();
1177         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1178         Py_DECREF(new_stderr);
1179         throw Exception("Error during execution");
1180         return;
1181       }
1182     _pyfunc=PyDict_GetItemString(_context,_fname.c_str());
1183     DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1184     if(_pyfunc == NULL)
1185       {
1186         _errorDetails="";
1187         PyObject* new_stderr = newPyStdOut(_errorDetails);
1188         PySys_SetObject((char*)"stderr", new_stderr);
1189         PyErr_Print();
1190         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1191         Py_DECREF(new_stderr);
1192         throw Exception("Error during execution");
1193       }
1194     DEBTRACE( "---------------End PyFuncNode::load function---------------" );
1195   }
1196 }
1197
1198 void PyFuncNode::execute()
1199 {
1200   if(_mode==PythonNode::REMOTE_NAME)
1201     executeRemote();
1202   else
1203     executeLocal();
1204 }
1205
1206 void PyFuncNode::executeRemote()
1207 {
1208   DEBTRACE( "++++++++++++++ PyFuncNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
1209   if(!_pyfuncSer)
1210     throw Exception("DistributedPythonNode badly loaded");
1211   //
1212   if(dynamic_cast<HomogeneousPoolContainer *>(getContainer()))
1213     {
1214       bool dummy;
1215       loadPythonAdapter(this,dummy);
1216       _pynode->executeAnotherPieceOfCode(getScript().c_str());
1217     }
1218   //
1219   Engines::pickledArgs_var serializationInputCorba(new Engines::pickledArgs);;
1220   {
1221 #if PY_VERSION_HEX < 0x03070000
1222       std::unique_lock<std::mutex> lock(data_mutex);
1223 #endif
1224       AutoGIL agil;
1225       PyObject *ob(0);
1226       //===========================================================================
1227       // Get inputs in input ports, build a Python tuple and pickle it
1228       //===========================================================================
1229       PyObject *args(PyTuple_New(getNumberOfInputPorts()));
1230       int pos(0);
1231       for(std::list<InputPort *>::iterator iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++,pos++)
1232         {
1233           InputPyPort *p=(InputPyPort *)*iter2;
1234           ob=p->getPyObj();
1235           Py_INCREF(ob);
1236           PyTuple_SetItem(args,pos,ob);
1237         }
1238 #ifdef _DEVDEBUG_
1239       PyObject_Print(args,stderr,Py_PRINT_RAW);
1240       std::cerr << endl;
1241 #endif
1242       PyObject *serializationInput=PyObject_CallObject(_pyfuncSer,args);
1243       Py_DECREF(args);
1244       //The pickled string may contain NULL characters so use PyString_AsStringAndSize
1245       char *serializationInputC(0);
1246       Py_ssize_t len;
1247       if (PyBytes_AsStringAndSize(serializationInput, &serializationInputC, &len))
1248         throw Exception("DistributedPythonNode problem in python pickle");
1249
1250       serializationInputCorba->length(len);
1251       for(int i=0; i < len ; i++)
1252         serializationInputCorba[i]=serializationInputC[i];
1253       Py_DECREF(serializationInput);
1254   }
1255
1256   //===========================================================================
1257   // Execute in remote Python node
1258   //===========================================================================
1259   DEBTRACE( "-----------------starting remote python invocation-----------------" );
1260   Engines::pickledArgs_var resultCorba;
1261   try
1262     {
1263       resultCorba=_pynode->execute(getFname().c_str(),serializationInputCorba);
1264     }
1265   catch( const SALOME::SALOME_Exception& ex )
1266     {
1267       std::string msg="Exception on remote python invocation";
1268       msg += '\n';
1269       msg += ex.details.text.in();
1270       _errorDetails=msg;
1271       throw Exception(msg);
1272     }
1273   catch(CORBA::COMM_FAILURE& ex)
1274     {
1275       std::ostringstream msg;
1276       msg << "Exception on remote python invocation." << std::endl ;
1277       msg << "Caught system exception COMM_FAILURE -- unable to contact the "
1278           << "object." << std::endl;
1279       _errorDetails=msg.str();
1280       throw Exception(msg.str());
1281     }
1282   catch(CORBA::SystemException& ex)
1283     {
1284       std::ostringstream msg;
1285       msg << "Exception on remote python invocation." << std::endl ;
1286       msg << "Caught a CORBA::SystemException." ;
1287       CORBA::Any tmp;
1288       tmp <<= ex;
1289       CORBA::TypeCode_var tc = tmp.type();
1290       const char *p = tc->name();
1291       if ( *p != '\0' )
1292         msg <<p;
1293       else
1294         msg  << tc->id();
1295       msg << std::endl;
1296       _errorDetails=msg.str();
1297       throw Exception(msg.str());
1298     }
1299   catch(CORBA::Exception& ex)
1300     {
1301       std::ostringstream msg;
1302       msg << "Exception on remote python invocation." << std::endl ;
1303       msg << "Caught CORBA::Exception. " ;
1304       CORBA::Any tmp;
1305       tmp <<= ex;
1306       CORBA::TypeCode_var tc = tmp.type();
1307       const char *p = tc->name();
1308       if ( *p != '\0' )
1309         msg <<p;
1310       else
1311         msg  << tc->id();
1312       msg << std::endl;
1313       _errorDetails=msg.str();
1314       throw Exception(msg.str());
1315     }
1316   catch(omniORB::fatalException& fe)
1317     {
1318       std::ostringstream msg;
1319       msg << "Exception on remote python invocation." << std::endl ;
1320       msg << "Caught omniORB::fatalException:" << std::endl;
1321       msg << "  file: " << fe.file() << std::endl;
1322       msg << "  line: " << fe.line() << std::endl;
1323       msg << "  mesg: " << fe.errmsg() << std::endl;
1324       _errorDetails=msg.str();
1325       throw Exception(msg.str());
1326     }
1327   DEBTRACE( "-----------------end of remote python invocation-----------------" );
1328   //===========================================================================
1329   // Get results, unpickle and put them in output ports
1330   //===========================================================================
1331   char *resultCorbaC=new char[resultCorba->length()+1];
1332   resultCorbaC[resultCorba->length()]='\0';
1333   for(int i=0;i<resultCorba->length();i++)
1334     resultCorbaC[i]=resultCorba[i];
1335
1336   {
1337 #if PY_VERSION_HEX < 0x03070000
1338       std::unique_lock<std::mutex> lock(data_mutex);
1339 #endif
1340       AutoGIL agil;
1341
1342       PyObject *resultPython(PyBytes_FromStringAndSize(resultCorbaC,resultCorba->length()));
1343       delete [] resultCorbaC;
1344       PyObject *args(PyTuple_New(1)),*ob(0);
1345       PyTuple_SetItem(args,0,resultPython);
1346       PyObject *finalResult=PyObject_CallObject(_pyfuncUnser,args);
1347       Py_DECREF(args);
1348
1349       DEBTRACE( "-----------------PythonNode::outputs-----------------" );
1350       int nres=1;
1351       if(finalResult == Py_None)
1352         nres=0;
1353       else if(PyTuple_Check(finalResult))
1354         nres=PyTuple_Size(finalResult);
1355
1356       if(getNumberOfOutputPorts() != nres)
1357         {
1358           std::string msg="Number of output arguments : Mismatch between definition and execution";
1359           Py_DECREF(finalResult);
1360           _errorDetails=msg;
1361           throw Exception(msg);
1362         }
1363
1364       try
1365       {
1366           int pos(0);
1367           for(std::list<OutputPort *>::iterator iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++, pos++)
1368             {
1369               OutputPyPort *p=(OutputPyPort *)*iter;
1370               DEBTRACE( "port name: " << p->getName() );
1371               DEBTRACE( "port kind: " << p->edGetType()->kind() );
1372               DEBTRACE( "port pos : " << pos );
1373               if(PyTuple_Check(finalResult))
1374                 ob=PyTuple_GetItem(finalResult,pos) ;
1375               else
1376                 ob=finalResult;
1377               DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1378               p->put(ob);
1379             }
1380           Py_DECREF(finalResult);
1381       }
1382       catch(ConversionException& ex)
1383       {
1384           Py_DECREF(finalResult);
1385           _errorDetails=ex.what();
1386           throw;
1387       }
1388   }
1389
1390   DEBTRACE( "++++++++++++++ ENDOF PyFuncNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
1391 }
1392
1393 void PyFuncNode::executeLocal()
1394 {
1395   DEBTRACE( "++++++++++++++ PyFuncNode::execute: " << getName() << " ++++++++++++++++++++" );
1396
1397   int pos=0;
1398   PyObject* ob;
1399   if(!_pyfunc)throw Exception("PyFuncNode badly loaded");
1400   {
1401       AutoGIL agil;
1402       DEBTRACE( "---------------PyFuncNode::inputs---------------" );
1403       PyObject* args = PyTuple_New(getNumberOfInputPorts()) ;
1404       list<InputPort *>::iterator iter2;
1405       for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++)
1406         {
1407           InputPyPort *p=(InputPyPort *)*iter2;
1408           DEBTRACE( "port name: " << p->getName() );
1409           DEBTRACE( "port kind: " << p->edGetType()->kind() );
1410           ob=p->getPyObj();
1411 #ifdef _DEVDEBUG_
1412           PyObject_Print(ob,stderr,Py_PRINT_RAW);
1413           cerr << endl;
1414 #endif
1415           DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1416           Py_INCREF(ob);
1417           PyTuple_SetItem(args,pos,ob);
1418           DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1419           pos++;
1420         }
1421       DEBTRACE( "---------------End PyFuncNode::inputs---------------" );
1422
1423       DEBTRACE( "----------------PyFuncNode::calculation---------------" );
1424 #ifdef _DEVDEBUG_
1425       PyObject_Print(_pyfunc,stderr,Py_PRINT_RAW);
1426       cerr << endl;
1427       PyObject_Print(args,stderr,Py_PRINT_RAW);
1428       cerr << endl;
1429 #endif
1430       DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1431       PyObject* result = PyObject_CallObject( _pyfunc , args ) ;
1432       DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1433       Py_DECREF(args);
1434       fflush(stdout);
1435       fflush(stderr);
1436       if(result == NULL)
1437         {
1438           _errorDetails="";
1439           PyObject* new_stderr = newPyStdOut(_errorDetails);
1440           PySys_SetObject((char*)"stderr", new_stderr);
1441           std::ostringstream stream;
1442           stream << "/tmp/PythonNode_";
1443           stream << getpid();
1444           ofstream errorfile(stream.str().c_str());
1445           if (errorfile.is_open())
1446             {
1447               errorfile << _script;
1448               errorfile.close();
1449             }
1450           PyErr_Print();
1451           PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1452           Py_DECREF(new_stderr);
1453           throw Exception("Error during execution");
1454         }
1455       DEBTRACE( "----------------End PyFuncNode::calculation---------------" );
1456
1457       DEBTRACE( "-----------------PyFuncNode::outputs-----------------" );
1458       int nres=1;
1459       if(result == Py_None)
1460         nres=0;
1461       else if(PyTuple_Check(result))
1462         nres=PyTuple_Size(result);
1463
1464       if(getNumberOfOutputPorts() != nres)
1465         {
1466           std::string msg="Number of output arguments : Mismatch between definition and execution";
1467           Py_DECREF(result);
1468           _errorDetails=msg;
1469           throw Exception(msg);
1470         }
1471
1472       pos=0;
1473 #ifdef _DEVDEBUG_
1474       PyObject_Print(result,stderr,Py_PRINT_RAW);
1475       cerr << endl;
1476 #endif
1477       list<OutputPort *>::iterator iter;
1478       try
1479       {
1480           for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
1481             {
1482               OutputPyPort *p=(OutputPyPort *)*iter;
1483               DEBTRACE( "port name: " << p->getName() );
1484               DEBTRACE( "port kind: " << p->edGetType()->kind() );
1485               DEBTRACE( "port pos : " << pos );
1486               if(PyTuple_Check(result))ob=PyTuple_GetItem(result,pos) ;
1487               else ob=result;
1488               DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1489 #ifdef _DEVDEBUG_
1490               PyObject_Print(ob,stderr,Py_PRINT_RAW);
1491               cerr << endl;
1492 #endif
1493               p->put(ob);
1494               pos++;
1495             }
1496       }
1497       catch(ConversionException& ex)
1498       {
1499           Py_DECREF(result);
1500           _errorDetails=ex.what();
1501           throw;
1502       }
1503       DEBTRACE( "-----------------End PyFuncNode::outputs-----------------" );
1504       Py_DECREF(result);
1505   }
1506   DEBTRACE( "++++++++++++++ End PyFuncNode::execute: " << getName() << " ++++++++++++++++++++" );
1507 }
1508
1509 Node *PyFuncNode::simpleClone(ComposedNode *father, bool editionOnly) const
1510 {
1511   return new PyFuncNode(*this,father);
1512 }
1513
1514 void PyFuncNode::createRemoteAdaptedPyInterpretor(Engines::Container_ptr objContainer)
1515 {
1516   if(!CORBA::is_nil(_pynode))
1517     _pynode->UnRegister();
1518   _pynode=objContainer->createPyNode(getName().c_str(),getScript().c_str());
1519 }
1520
1521 Engines::PyNodeBase_var PyFuncNode::retrieveDftRemotePyInterpretorIfAny(Engines::Container_ptr objContainer) const
1522 {
1523   Engines::PyNode_var ret(objContainer->getDefaultPyNode(getName().c_str()));
1524   if(!CORBA::is_nil(ret))
1525     {
1526       ret->Register();
1527     }
1528   return Engines::PyNodeBase::_narrow(ret);
1529 }
1530
1531 void PyFuncNode::assignRemotePyInterpretor(Engines::PyNodeBase_var remoteInterp)
1532 {
1533   if(!CORBA::is_nil(_pynode))
1534     {
1535       Engines::PyNode_var tmpp(Engines::PyNode::_narrow(remoteInterp));
1536       if(_pynode->_is_equivalent(tmpp))
1537         return ;
1538     }
1539   if(!CORBA::is_nil(_pynode))
1540     _pynode->UnRegister();
1541   _pynode=Engines::PyNode::_narrow(remoteInterp);
1542 }
1543
1544 Engines::PyNodeBase_var PyFuncNode::getRemoteInterpreterHandle()
1545 {
1546   return Engines::PyNodeBase::_narrow(_pynode);
1547 }
1548
1549 //! Create a new node of same type with a given name
1550 PyFuncNode* PyFuncNode::cloneNode(const std::string& name)
1551 {
1552   PyFuncNode* n=new PyFuncNode(name);
1553   n->setScript(_script);
1554   n->setFname(_fname);
1555   list<InputPort *>::iterator iter;
1556   for(iter = _setOfInputPort.begin(); iter != _setOfInputPort.end(); iter++)
1557     {
1558       InputPyPort *p=(InputPyPort *)*iter;
1559       n->edAddInputPort(p->getName(),p->edGetType());
1560     }
1561   list<OutputPort *>::iterator iter2;
1562   for(iter2 = _setOfOutputPort.begin(); iter2 != _setOfOutputPort.end(); iter2++)
1563     {
1564       OutputPyPort *p=(OutputPyPort *)*iter2;
1565       n->edAddOutputPort(p->getName(),p->edGetType());
1566     }
1567   return n;
1568 }
1569
1570 std::string PyFuncNode::getContainerLog()
1571 {
1572   return PythonEntry::GetContainerLog(_mode,_container,this);
1573 }
1574
1575 void PyFuncNode::shutdown(int level)
1576 {
1577   DEBTRACE("PyFuncNode::shutdown " << level);
1578   if(_mode=="local")return;
1579   if(_container)
1580     {
1581       if(!CORBA::is_nil(_pynode)) _pynode->UnRegister();
1582       _pynode=Engines::PyNode::_nil();
1583       _container->shutdown(level);
1584     }
1585 }
1586
1587 void PyFuncNode::imposeResource(const std::string& resource_name,
1588                                 const std::string& container_name)
1589 {
1590   if(!resource_name.empty() && !container_name.empty())
1591   {
1592     _imposedResource = resource_name;
1593     _imposedContainer = container_name;
1594   }
1595 }
1596
1597 bool PyFuncNode::canAcceptImposedResource()
1598 {
1599   return _container != nullptr && _container->canAcceptImposedResource();
1600 }
1601
1602 bool PyFuncNode::hasImposedResource()const
1603 {
1604   return PythonEntry::hasImposedResource();
1605 }
1606