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       if( ! this->isUsingPythonCache() )
 543         _pynode->removeAllVarsInContext();
 544     }
 545   catch( const SALOME::SALOME_Exception& ex )
 546     {
 547       std::ostringstream msg; msg << "Exception on remote python invocation" << std::endl << ex.details.text.in() << std::endl;
 548       msg << "PyScriptNode CORBA ref : ";
 549       {
 550         CORBA::ORB_ptr orb(getSALOMERuntime()->getOrb());
 551         if(!CORBA::is_nil(orb))
 552         {
 553           CORBA::String_var IOR(orb->object_to_string(_pynode));
 554           msg << IOR;
 555         }
 556       }
 557       msg << std::endl;
 558       _errorDetails=msg.str();
 559       throw Exception(msg.str());
 560     }
 561   catch(CORBA::COMM_FAILURE& ex)
 562     {
 563       std::ostringstream msg;
 564       msg << "Exception on remote python invocation." << std::endl ;
 565       msg << "Caught system exception COMM_FAILURE -- unable to contact the "
 566           << "object." << std::endl;
 567       _errorDetails=msg.str();
 568       throw Exception(msg.str());
 569     }
 570   catch(CORBA::SystemException& ex)
 571     {
 572       std::ostringstream msg;
 573       msg << "Exception on remote python invocation." << std::endl ;
 574       msg << "Caught a CORBA::SystemException." ;
 575       CORBA::Any tmp;
 576       tmp <<= ex;
 577       CORBA::TypeCode_var tc = tmp.type();
 578       const char *p = tc->name();
 579       if ( *p != '\0' )
 580         msg <<p;
 581       else
 582         msg  << tc->id();
 583       msg << std::endl;
 584       _errorDetails=msg.str();
 585       throw Exception(msg.str());
 586     }
 587   catch(CORBA::Exception& ex)
 588     {
 589       std::ostringstream msg;
 590       msg << "Exception on remote python invocation." << std::endl ;
 591       msg << "Caught CORBA::Exception. " ;
 592       CORBA::Any tmp;
 593       tmp <<= ex;
 594       CORBA::TypeCode_var tc = tmp.type();
 595       const char *p = tc->name();
 596       if ( *p != '\0' )
 597         msg <<p;
 598       else
 599         msg  << tc->id();
 600       msg << std::endl;
 601       _errorDetails=msg.str();
 602       throw Exception(msg.str());
 603     }
 604   catch(omniORB::fatalException& fe)
 605     {
 606       std::ostringstream msg;
 607       msg << "Exception on remote python invocation." << std::endl ;
 608       msg << "Caught omniORB::fatalException:" << std::endl;
 609       msg << "  file: " << fe.file() << std::endl;
 610       msg << "  line: " << fe.line() << std::endl;
 611       msg << "  mesg: " << fe.errmsg() << std::endl;
 612       _errorDetails=msg.str();
 613       throw Exception(msg.str());
 614     }
 615   DEBTRACE( "-----------------end of remote python invocation-----------------" );
 616   //===========================================================================
 617   // Get results, unpickle and put them in output ports
 618   //===========================================================================
 619   {
 620 #if PY_VERSION_HEX < 0x03070000
 621       std::unique_lock<std::mutex> lock(data_mutex);
 622 #endif
 623       AutoGIL agil;
 624       DEBTRACE( "-----------------PythonNode::outputs-----------------" );
 625       int nres( resultCorba->length() );
 626
 627       if(getNumberOfOutputPorts() != nres)
 628         {
 629           std::string msg="Number of output arguments : Mismatch between definition and execution";
 630           _errorDetails=msg;
 631           throw Exception(msg);
 632         }
 633       pos=0;
 634       try
 635       {
 636           for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); ++iter)
 637             {
 638               OutputPyPort *p=(OutputPyPort *)*iter;
 639               DEBTRACE( "port name: " << p->getName() );
 640               DEBTRACE( "port kind: " << p->edGetType()->kind() );
 641               DEBTRACE( "port pos : " << pos );
 642               SALOME::SenderByte_var elt = (*resultCorba)[pos];
 643               SeqByteReceiver recv(elt);
 644               unsigned long length = 0;
 645               char *resultCorbaC = recv.data(length);
 646               {
 647                 AutoPyRef resultPython=PyMemoryView_FromMemory(resultCorbaC,length,PyBUF_READ);
 648                 AutoPyRef args = PyTuple_New(1);
 649                 PyTuple_SetItem(args,0,resultPython.retn());
 650                 AutoPyRef ob = PyObject_CallObject(_pyfuncUnser,args);
 651                 if (!ob)
 652                 {
 653                   std::stringstream msg;
 654                   msg << "Conversion with pickle of output ports failed !";
 655                   msg << " : " << __FILE__ << ":" << __LINE__;
 656                   _errorDetails=msg.str();
 657                   throw YACS::ENGINE::ConversionException(msg.str());
 658                 }
 659                 UnlinkOnDestructorIfProxy(ob);
 660                 p->put( ob );
 661               }
 662               pos++;
 663             }
 664       }
 665       catch(ConversionException& ex)
 666       {
 667           _errorDetails=ex.what();
 668           throw;
 669       }
 670       if(_autoSqueeze)
 671         squeezeMemoryRemote();
 672   }
 673   //
 674   if(!isUsingPythonCache())
 675   {
 676     freeKernelPynode();
 677     bool dummy;
 678     Engines::Container_var cont(GetContainerObj(this,dummy));
 679     cont->removePyScriptNode(getName().c_str());
 680   }
 681   DEBTRACE( "++++++++++++++ ENDOF PyNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
 682 }
 683 void PythonNode::executeLocalInternal(const std::string& codeStr)
 684 {
 685   DEBTRACE(  code );
 686   DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
 687   std::ostringstream stream;
 688   stream << "/tmp/PythonNode_";
 689   stream << getpid();
 690   AutoPyRef code=Py_CompileString(codeStr.c_str(), stream.str().c_str(), Py_file_input);
 691   if(code == NULL)
 692   {
 693     _errorDetails="";
 694     AutoPyRef new_stderr = newPyStdOut(_errorDetails);
 695     PySys_SetObject((char*)"stderr", new_stderr);
 696     PyErr_Print();
 697     PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 698     throw Exception("Error during execution");
 699   }
 700   {
 701     AutoPyRef res = PyEval_EvalCode(  code, _context, _context);
 702   }
 703   DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
 704   fflush(stdout);
 705   fflush(stderr);
 706   if(PyErr_Occurred ())
 707   {
 708     _errorDetails="";
 709     AutoPyRef new_stderr = newPyStdOut(_errorDetails);
 710     PySys_SetObject((char*)"stderr", new_stderr);
 711     ofstream errorfile(stream.str().c_str());
 712     if (errorfile.is_open())
 713       {
 714         errorfile << codeStr;
 715         errorfile.close();
 716       }
 717     PyErr_Print();
 718     PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
 719     throw Exception("Error during execution");
 720   }
 721 }
 722
 723 void PythonNode::executeLocal()
 724 {
 725   DEBTRACE( "++++++++++++++ PyNode::executeLocal: " << getName() << " ++++++++++++++++++++" );
 726   {
 727     AutoGIL agil;
 728     std::ostringstream unpxy; unpxy << "from SALOME_PyNode import UnProxyObjectSimpleLocal" << std::endl;
 729     DEBTRACE( "---------------PyNode::inputs---------------" );
 730     list<InputPort *>::iterator iter2;
 731     for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++)
 732       {
 733         InputPyPort *p=(InputPyPort *)*iter2;
 734         DEBTRACE( "port name: " << p->getName() );
 735         DEBTRACE( "port kind: " << p->edGetType()->kind() );
 736         PyObject* ob=p->getPyObj();
 737         DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
 738         unpxy << p->getName() << " = UnProxyObjectSimpleLocal( " << p->getName() << " )" << std::endl;
 739 #ifdef _DEVDEBUG_
 740         PyObject_Print(ob,stderr,Py_PRINT_RAW);
 741         cerr << endl;
 742 #endif
 743         int ier=PyDict_SetItemString(_context,p->getName().c_str(),ob);
 744         DEBTRACE( "after PyDict_SetItemString:ob refcnt: " << ob->ob_refcnt );
 745       }
 746
 747     DEBTRACE( "---------------End PyNode::inputs---------------" );
 748
 749     //calculation
 750     DEBTRACE( "----------------PyNode::calculation---------------" );
 751
 752     executeLocalInternal( unpxy.str() );
 753
 754     executeLocalInternal( _script );
 755
 756     DEBTRACE( "-----------------PyNode::outputs-----------------" );
 757     list<OutputPort *>::iterator iter;
 758     try
 759     {
 760         for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
 761           {
 762             OutputPyPort *p=(OutputPyPort *)*iter;
 763             DEBTRACE( "port name: " << p->getName() );
 764             DEBTRACE( "port kind: " << p->edGetType()->kind() );
 765             PyObject *ob=PyDict_GetItemString(_context,p->getName().c_str());
 766             if(ob==NULL)
 767               {
 768                 std::string msg="Error during execution: there is no variable ";
 769                 msg=msg+p->getName()+" in node context";
 770                 _errorDetails=msg;
 771                 throw Exception(msg);
 772               }
 773             DEBTRACE( "PyNode::outputs::ob refcnt: " << ob->ob_refcnt );
 774 #ifdef _DEVDEBUG_
 775             PyObject_Print(ob,stderr,Py_PRINT_RAW);
 776             cerr << endl;
 777 #endif
 778             p->put(ob);
 779           }
 780     }
 781     catch(ConversionException& ex)
 782     {
 783         _errorDetails=ex.what();
 784         throw;
 785     }
 786     if(_autoSqueeze)
 787       squeezeMemory();
 788     DEBTRACE( "-----------------End PyNode::outputs-----------------" );
 789   }
 790   DEBTRACE( "++++++++++++++ End PyNode::execute: " << getName() << " ++++++++++++++++++++" );
 791 }
 792
 793 void PythonNode::squeezeMemorySafe()
 794 {
 795   AutoGIL agil;
 796   if(_mode==PythonNode::REMOTE_NAME)
 797     this->squeezeMemoryRemote();
 798   else
 799     this->squeezeMemory();
 800 }
 801
 802 void PythonNode::squeezeMemory()
 803 {
 804   for(auto p : _setOfInputPort)
 805     {
 806       PyDict_DelItemString(_context,p->getName().c_str());
 807       InputPyPort *p2(static_cast<InputPyPort *>(p));
 808       if(p2->canSafelySqueezeMemory())
 809         p2->put(Py_None);
 810     }
 811   for(auto p : _setOfOutputPort)
 812     {
 813       PyDict_DelItemString(_context,p->getName().c_str());
 814       OutputPyPort *p2(static_cast<OutputPyPort *>(p));
 815       p2->putWithoutForward(Py_None);
 816     }
 817 }
 818
 819 void PythonNode::squeezeMemoryRemote()
 820 {
 821   for(auto p : _setOfInputPort)
 822     {
 823       InputPyPort *p2(static_cast<InputPyPort *>(p));
 824       if(p2->canSafelySqueezeMemory())
 825         p2->put(Py_None);
 826     }
 827   for(auto p : _setOfOutputPort)
 828     {
 829       OutputPyPort *p2(static_cast<OutputPyPort *>(p));
 830       p2->putWithoutForward(Py_None);
 831     }
 832 }
 833
 834 std::string PythonNode::getContainerLog()
 835 {
 836   return PythonEntry::GetContainerLog(_mode,_container,this);
 837 }
 838
 839 void PythonNode::shutdown(int level)
 840 {
 841   DEBTRACE("PythonNode::shutdown " << level);
 842   if(_mode=="local")return;
 843   if(_container)
 844     {
 845       freeKernelPynode();
 846       _container->shutdown(level);
 847     }
 848 }
 849
 850 void PythonNode::imposeResource(const std::string& resource_name,
 851                                 const std::string& container_name)
 852 {
 853   if(!resource_name.empty() && !container_name.empty())
 854   {
 855     _imposedResource = resource_name;
 856     _imposedContainer = container_name;
 857   }
 858 }
 859
 860 bool PythonNode::canAcceptImposedResource()
 861 {
 862   return _container != nullptr && _container->canAcceptImposedResource();
 863 }
 864
 865 bool PythonNode::hasImposedResource()const
 866 {
 867   return PythonEntry::hasImposedResource();
 868 }
 869
 870 std::string PythonNode::pythonEntryName()const
 871 {
 872   if(isUsingPythonCache())
 873     return "DEFAULT_NAME_FOR_UNIQUE_PYTHON_NODE_ENTRY";
 874   else
 875     return getName();
 876 }
 877
 878 bool PythonNode::isUsingPythonCache()const
 879 {
 880   bool found = false;
 881   if(_container)
 882     found = _container->isUsingPythonCache();
 883   return found;
 884 }
 885
 886 void PythonNode::freeKernelPynode()
 887 {
 888   if(!CORBA::is_nil(_pynode))
 889   {
 890     try
 891     {
 892       _pynode->UnRegister();
 893     }
 894     catch(...)
 895     {
 896       DEBTRACE("Trouble when pynode->UnRegister!")
 897     }
 898     _pynode = Engines::PyScriptNode::_nil();
 899   }
 900 }
 901
 902 Node *PythonNode::simpleClone(ComposedNode *father, bool editionOnly) const
 903 {
 904   return new PythonNode(*this,father);
 905 }
 906
 907 void PythonNode::createRemoteAdaptedPyInterpretor(Engines::Container_ptr objContainer)
 908 {
 909   freeKernelPynode();
 910   _pynode=objContainer->createPyScriptNode(pythonEntryName().c_str(),getScript().c_str());
 911   _pynode->Register();
 912 }
 913
 914 Engines::PyNodeBase_var PythonNode::retrieveDftRemotePyInterpretorIfAny(Engines::Container_ptr objContainer) const
 915 {
 916   Engines::PyScriptNode_var ret(objContainer->getDefaultPyScriptNode(pythonEntryName().c_str()));
 917   if(!CORBA::is_nil(ret))
 918     {
 919       ret->Register();
 920     }
 921   return Engines::PyNodeBase::_narrow(ret);
 922 }
 923
 924 void PythonNode::assignRemotePyInterpretor(Engines::PyNodeBase_var remoteInterp)
 925 {
 926   if(CORBA::is_nil(_pynode))
 927     _pynode=Engines::PyScriptNode::_narrow(remoteInterp);
 928   else
 929   {
 930     Engines::PyScriptNode_var tmpp(Engines::PyScriptNode::_narrow(remoteInterp));
 931     if(!_pynode->_is_equivalent(tmpp))
 932     {
 933       freeKernelPynode();
 934       _pynode=Engines::PyScriptNode::_narrow(remoteInterp);
 935     }
 936   }
 937   _pynode->assignNewCompiledCode(getScript().c_str());
 938 }
 939
 940 Engines::PyNodeBase_var PythonNode::getRemoteInterpreterHandle()
 941 {
 942   return Engines::PyNodeBase::_narrow(_pynode);
 943 }
 944
 945 //! Create a new node of same type with a given name
 946 PythonNode* PythonNode::cloneNode(const std::string& name)
 947 {
 948   PythonNode* n=new PythonNode(name);
 949   n->setScript(_script);
 950   list<InputPort *>::iterator iter;
 951   for(iter = _setOfInputPort.begin(); iter != _setOfInputPort.end(); iter++)
 952     {
 953       InputPyPort *p=(InputPyPort *)*iter;
 954       DEBTRACE( "port name: " << p->getName() );
 955       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 956       n->edAddInputPort(p->getName(),p->edGetType());
 957     }
 958   list<OutputPort *>::iterator iter2;
 959   for(iter2 = _setOfOutputPort.begin(); iter2 != _setOfOutputPort.end(); iter2++)
 960     {
 961       OutputPyPort *p=(OutputPyPort *)*iter2;
 962       DEBTRACE( "port name: " << p->getName() );
 963       DEBTRACE( "port kind: " << p->edGetType()->kind() );
 964       n->edAddOutputPort(p->getName(),p->edGetType());
 965     }
 966   return n;
 967 }
 968
 969 void PythonNode::applyDPLScope(ComposedNode *gfn)
 970 {
 971   std::vector< std::pair<std::string,int> > ret(getDPLScopeInfo(gfn));
 972   if(ret.empty())
 973     return ;
 974   //
 975   PyObject *ob(0);
 976   {
 977     AutoGIL agil;
 978     std::size_t sz(ret.size());
 979     ob=PyList_New(sz);
 980     for(std::size_t i=0;i<sz;i++)
 981       {
 982         const std::pair<std::string,int>& p(ret[i]);
 983         PyObject *elt(PyTuple_New(2));
 984         PyTuple_SetItem(elt,0,PyUnicode_FromString(p.first.c_str()));
 985         PyTuple_SetItem(elt,1,PyLong_FromLong(p.second));
 986         PyList_SetItem(ob,i,elt);
 987       }
 988   }
 989   if(_mode==REMOTE_NAME)
 990     {
 991       Engines::pickledArgs_var serializationInputCorba(new Engines::pickledArgs);
 992       {
 993         AutoGIL agil;
 994         PyObject *serializationInput(PyObject_CallFunctionObjArgs(_pyfuncSimpleSer,ob,NULL));
 995         Py_XDECREF(ob);
 996         char *serializationInputC(0);
 997         Py_ssize_t len;
 998         if (PyBytes_AsStringAndSize(serializationInput, &serializationInputC, &len))
 999           throw Exception("DistributedPythonNode problem in python pickle");
1000         serializationInputCorba->length(len);
1001         for(int i=0; i < len ; i++)
1002           serializationInputCorba[i]=serializationInputC[i];
1003         Py_XDECREF(serializationInput);
1004       }
1005       _pynode->defineNewCustomVar(DPL_INFO_NAME,serializationInputCorba);
1006     }
1007   else
1008     {
1009       AutoGIL agil;
1010       PyDict_SetItemString(_context,DPL_INFO_NAME,ob);
1011       Py_XDECREF(ob);
1012     }
1013 }
1014
1015 PyFuncNode::PyFuncNode(const PyFuncNode& other, ComposedNode *father):InlineFuncNode(other,father),_pyfunc(0)
1016 {
1017   _implementation = PythonNode::IMPL_NAME;
1018   {
1019     AutoGIL agil;
1020     _context=PyDict_New();
1021     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1022     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
1023       {
1024         stringstream msg;
1025         msg << "Not possible to set builtins" << __FILE__ << ":" << __LINE__;
1026         _errorDetails=msg.str();
1027         throw Exception(msg.str());
1028       }
1029   }
1030 }
1031
1032 PyFuncNode::PyFuncNode(const std::string& name): InlineFuncNode(name),_pyfunc(0)
1033 {
1034
1035   _implementation = PythonNode::IMPL_NAME;
1036   DEBTRACE( "PyFuncNode::PyFuncNode " << name );
1037   {
1038     AutoGIL agil;
1039     _context=PyDict_New();
1040     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1041     if( PyDict_SetItemString( _context, "__builtins__", getSALOMERuntime()->getBuiltins() ))
1042       {
1043         stringstream msg;
1044         msg << "Not possible to set builtins" << __FILE__ << ":" << __LINE__;
1045         _errorDetails=msg.str();
1046         throw Exception(msg.str());
1047       }
1048   }
1049 }
1050
1051 PyFuncNode::~PyFuncNode()
1052 {
1053   if(!CORBA::is_nil(_pynode))
1054     {
1055       _pynode->UnRegister();
1056     }
1057 }
1058
1059 void PyFuncNode::init(bool start)
1060 {
1061   initCommonPartWithoutStateManagement(start);
1062   if(_state == YACS::DISABLED)
1063     {
1064       exDisabledState(); // to refresh propagation of DISABLED state
1065       return ;
1066     }
1067   if(start) //complete initialization
1068     setState(YACS::READY);
1069   else if(_state > YACS::LOADED)// WARNING FuncNode has internal vars (CEA usecase) ! Partial initialization (inside a loop). Exclusivity of funcNode.
1070     setState(YACS::TORECONNECT);
1071 }
1072
1073 void PyFuncNode::checkBasicConsistency() const
1074 {
1075   DEBTRACE("checkBasicConsistency");
1076   InlineFuncNode::checkBasicConsistency();
1077   {
1078     AutoGIL agil;
1079     PyObject* res;
1080     res=Py_CompileString(_script.c_str(),getName().c_str(),Py_file_input);
1081     if(res == NULL)
1082       {
1083         std::string error="";
1084         PyObject* new_stderr = newPyStdOut(error);
1085         PySys_SetObject((char*)"stderr", new_stderr);
1086         PyErr_Print();
1087         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1088         Py_DECREF(new_stderr);
1089         throw Exception(error);
1090       }
1091     else
1092       Py_XDECREF(res);
1093   }
1094 }
1095
1096 void PyFuncNode::load()
1097 {
1098   DEBTRACE( "---------------PyfuncNode::load function---------------" );
1099   if(_mode==PythonNode::REMOTE_NAME)
1100     loadRemote();
1101   else
1102     loadLocal();
1103 }
1104
1105 void PyFuncNode::loadRemote()
1106 {
1107   commonRemoteLoad(this);
1108 }
1109
1110 void PyFuncNode::loadLocal()
1111 {
1112   DEBTRACE( "---------------PyFuncNode::load function " << getName() << " ---------------" );
1113   DEBTRACE(  _script );
1114
1115 #ifdef _DEVDEBUG_
1116   list<OutputPort *>::iterator iter;
1117   for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
1118     {
1119       OutputPyPort *p=(OutputPyPort *)*iter;
1120       DEBTRACE( "port name: " << p->getName() );
1121       DEBTRACE( "port kind: " << p->edGetType()->kind() );
1122     }
1123 #endif
1124
1125   {
1126     AutoGIL agil;
1127     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1128
1129     std::ostringstream stream;
1130     stream << "/tmp/PythonNode_";
1131     stream << getpid();
1132
1133     PyObject* code=Py_CompileString(_script.c_str(), stream.str().c_str(), Py_file_input);
1134     if(code == NULL)
1135       {
1136         _errorDetails="";
1137         PyObject* new_stderr = newPyStdOut(_errorDetails);
1138         PySys_SetObject((char*)"stderr", new_stderr);
1139         PyErr_Print();
1140         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1141         Py_DECREF(new_stderr);
1142         throw Exception("Error during execution");
1143       }
1144     PyObject *res = PyEval_EvalCode( code, _context, _context);
1145     Py_DECREF(code);
1146     Py_XDECREF(res);
1147
1148     DEBTRACE( "_context refcnt: " << _context->ob_refcnt );
1149     if(PyErr_Occurred ())
1150       {
1151         _errorDetails="";
1152         PyObject* new_stderr = newPyStdOut(_errorDetails);
1153         PySys_SetObject((char*)"stderr", new_stderr);
1154         ofstream errorfile(stream.str().c_str());
1155         if (errorfile.is_open())
1156           {
1157             errorfile << _script;
1158             errorfile.close();
1159           }
1160         PyErr_Print();
1161         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1162         Py_DECREF(new_stderr);
1163         throw Exception("Error during execution");
1164         return;
1165       }
1166     _pyfunc=PyDict_GetItemString(_context,_fname.c_str());
1167     DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1168     if(_pyfunc == NULL)
1169       {
1170         _errorDetails="";
1171         PyObject* new_stderr = newPyStdOut(_errorDetails);
1172         PySys_SetObject((char*)"stderr", new_stderr);
1173         PyErr_Print();
1174         PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1175         Py_DECREF(new_stderr);
1176         throw Exception("Error during execution");
1177       }
1178     DEBTRACE( "---------------End PyFuncNode::load function---------------" );
1179   }
1180 }
1181
1182 void PyFuncNode::execute()
1183 {
1184   if(_mode==PythonNode::REMOTE_NAME)
1185     executeRemote();
1186   else
1187     executeLocal();
1188 }
1189
1190 void PyFuncNode::executeRemote()
1191 {
1192   DEBTRACE( "++++++++++++++ PyFuncNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
1193   if(!_pyfuncSer)
1194     throw Exception("DistributedPythonNode badly loaded");
1195   //
1196   if(dynamic_cast<HomogeneousPoolContainer *>(getContainer()))
1197     {
1198       bool dummy;
1199       loadPythonAdapter(this,dummy);
1200       _pynode->executeAnotherPieceOfCode(getScript().c_str());
1201     }
1202   //
1203   Engines::pickledArgs_var serializationInputCorba(new Engines::pickledArgs);;
1204   {
1205 #if PY_VERSION_HEX < 0x03070000
1206       std::unique_lock<std::mutex> lock(data_mutex);
1207 #endif
1208       AutoGIL agil;
1209       PyObject *ob(0);
1210       //===========================================================================
1211       // Get inputs in input ports, build a Python tuple and pickle it
1212       //===========================================================================
1213       PyObject *args(PyTuple_New(getNumberOfInputPorts()));
1214       int pos(0);
1215       for(std::list<InputPort *>::iterator iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++,pos++)
1216         {
1217           InputPyPort *p=(InputPyPort *)*iter2;
1218           ob=p->getPyObj();
1219           Py_INCREF(ob);
1220           PyTuple_SetItem(args,pos,ob);
1221         }
1222 #ifdef _DEVDEBUG_
1223       PyObject_Print(args,stderr,Py_PRINT_RAW);
1224       std::cerr << endl;
1225 #endif
1226       PyObject *serializationInput=PyObject_CallObject(_pyfuncSer,args);
1227       Py_DECREF(args);
1228       //The pickled string may contain NULL characters so use PyString_AsStringAndSize
1229       char *serializationInputC(0);
1230       Py_ssize_t len;
1231       if (PyBytes_AsStringAndSize(serializationInput, &serializationInputC, &len))
1232         throw Exception("DistributedPythonNode problem in python pickle");
1233
1234       serializationInputCorba->length(len);
1235       for(int i=0; i < len ; i++)
1236         serializationInputCorba[i]=serializationInputC[i];
1237       Py_DECREF(serializationInput);
1238   }
1239
1240   //===========================================================================
1241   // Execute in remote Python node
1242   //===========================================================================
1243   DEBTRACE( "-----------------starting remote python invocation-----------------" );
1244   Engines::pickledArgs_var resultCorba;
1245   try
1246     {
1247       resultCorba=_pynode->execute(getFname().c_str(),serializationInputCorba);
1248     }
1249   catch( const SALOME::SALOME_Exception& ex )
1250     {
1251       std::string msg="Exception on remote python invocation";
1252       msg += '\n';
1253       msg += ex.details.text.in();
1254       _errorDetails=msg;
1255       throw Exception(msg);
1256     }
1257   catch(CORBA::COMM_FAILURE& ex)
1258     {
1259       std::ostringstream msg;
1260       msg << "Exception on remote python invocation." << std::endl ;
1261       msg << "Caught system exception COMM_FAILURE -- unable to contact the "
1262           << "object." << std::endl;
1263       _errorDetails=msg.str();
1264       throw Exception(msg.str());
1265     }
1266   catch(CORBA::SystemException& ex)
1267     {
1268       std::ostringstream msg;
1269       msg << "Exception on remote python invocation." << std::endl ;
1270       msg << "Caught a CORBA::SystemException." ;
1271       CORBA::Any tmp;
1272       tmp <<= ex;
1273       CORBA::TypeCode_var tc = tmp.type();
1274       const char *p = tc->name();
1275       if ( *p != '\0' )
1276         msg <<p;
1277       else
1278         msg  << tc->id();
1279       msg << std::endl;
1280       _errorDetails=msg.str();
1281       throw Exception(msg.str());
1282     }
1283   catch(CORBA::Exception& ex)
1284     {
1285       std::ostringstream msg;
1286       msg << "Exception on remote python invocation." << std::endl ;
1287       msg << "Caught CORBA::Exception. " ;
1288       CORBA::Any tmp;
1289       tmp <<= ex;
1290       CORBA::TypeCode_var tc = tmp.type();
1291       const char *p = tc->name();
1292       if ( *p != '\0' )
1293         msg <<p;
1294       else
1295         msg  << tc->id();
1296       msg << std::endl;
1297       _errorDetails=msg.str();
1298       throw Exception(msg.str());
1299     }
1300   catch(omniORB::fatalException& fe)
1301     {
1302       std::ostringstream msg;
1303       msg << "Exception on remote python invocation." << std::endl ;
1304       msg << "Caught omniORB::fatalException:" << std::endl;
1305       msg << "  file: " << fe.file() << std::endl;
1306       msg << "  line: " << fe.line() << std::endl;
1307       msg << "  mesg: " << fe.errmsg() << std::endl;
1308       _errorDetails=msg.str();
1309       throw Exception(msg.str());
1310     }
1311   DEBTRACE( "-----------------end of remote python invocation-----------------" );
1312   //===========================================================================
1313   // Get results, unpickle and put them in output ports
1314   //===========================================================================
1315   char *resultCorbaC=new char[resultCorba->length()+1];
1316   resultCorbaC[resultCorba->length()]='\0';
1317   for(int i=0;i<resultCorba->length();i++)
1318     resultCorbaC[i]=resultCorba[i];
1319
1320   {
1321 #if PY_VERSION_HEX < 0x03070000
1322       std::unique_lock<std::mutex> lock(data_mutex);
1323 #endif
1324       AutoGIL agil;
1325
1326       PyObject *resultPython(PyBytes_FromStringAndSize(resultCorbaC,resultCorba->length()));
1327       delete [] resultCorbaC;
1328       PyObject *args(PyTuple_New(1)),*ob(0);
1329       PyTuple_SetItem(args,0,resultPython);
1330       PyObject *finalResult=PyObject_CallObject(_pyfuncUnser,args);
1331       Py_DECREF(args);
1332
1333       DEBTRACE( "-----------------PythonNode::outputs-----------------" );
1334       int nres=1;
1335       if(finalResult == Py_None)
1336         nres=0;
1337       else if(PyTuple_Check(finalResult))
1338         nres=PyTuple_Size(finalResult);
1339
1340       if(getNumberOfOutputPorts() != nres)
1341         {
1342           std::string msg="Number of output arguments : Mismatch between definition and execution";
1343           Py_DECREF(finalResult);
1344           _errorDetails=msg;
1345           throw Exception(msg);
1346         }
1347
1348       try
1349       {
1350           int pos(0);
1351           for(std::list<OutputPort *>::iterator iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++, pos++)
1352             {
1353               OutputPyPort *p=(OutputPyPort *)*iter;
1354               DEBTRACE( "port name: " << p->getName() );
1355               DEBTRACE( "port kind: " << p->edGetType()->kind() );
1356               DEBTRACE( "port pos : " << pos );
1357               if(PyTuple_Check(finalResult))
1358                 ob=PyTuple_GetItem(finalResult,pos) ;
1359               else
1360                 ob=finalResult;
1361               DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1362               p->put(ob);
1363             }
1364           Py_DECREF(finalResult);
1365       }
1366       catch(ConversionException& ex)
1367       {
1368           Py_DECREF(finalResult);
1369           _errorDetails=ex.what();
1370           throw;
1371       }
1372   }
1373
1374   DEBTRACE( "++++++++++++++ ENDOF PyFuncNode::executeRemote: " << getName() << " ++++++++++++++++++++" );
1375 }
1376
1377 void PyFuncNode::executeLocal()
1378 {
1379   DEBTRACE( "++++++++++++++ PyFuncNode::execute: " << getName() << " ++++++++++++++++++++" );
1380
1381   int pos=0;
1382   PyObject* ob;
1383   if(!_pyfunc)throw Exception("PyFuncNode badly loaded");
1384   {
1385       AutoGIL agil;
1386       DEBTRACE( "---------------PyFuncNode::inputs---------------" );
1387       PyObject* args = PyTuple_New(getNumberOfInputPorts()) ;
1388       list<InputPort *>::iterator iter2;
1389       for(iter2 = _setOfInputPort.begin(); iter2 != _setOfInputPort.end(); iter2++)
1390         {
1391           InputPyPort *p=(InputPyPort *)*iter2;
1392           DEBTRACE( "port name: " << p->getName() );
1393           DEBTRACE( "port kind: " << p->edGetType()->kind() );
1394           ob=p->getPyObj();
1395 #ifdef _DEVDEBUG_
1396           PyObject_Print(ob,stderr,Py_PRINT_RAW);
1397           cerr << endl;
1398 #endif
1399           DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1400           Py_INCREF(ob);
1401           PyTuple_SetItem(args,pos,ob);
1402           DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1403           pos++;
1404         }
1405       DEBTRACE( "---------------End PyFuncNode::inputs---------------" );
1406
1407       DEBTRACE( "----------------PyFuncNode::calculation---------------" );
1408 #ifdef _DEVDEBUG_
1409       PyObject_Print(_pyfunc,stderr,Py_PRINT_RAW);
1410       cerr << endl;
1411       PyObject_Print(args,stderr,Py_PRINT_RAW);
1412       cerr << endl;
1413 #endif
1414       DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1415       PyObject* result = PyObject_CallObject( _pyfunc , args ) ;
1416       DEBTRACE( "_pyfunc refcnt: " << _pyfunc->ob_refcnt );
1417       Py_DECREF(args);
1418       fflush(stdout);
1419       fflush(stderr);
1420       if(result == NULL)
1421         {
1422           _errorDetails="";
1423           PyObject* new_stderr = newPyStdOut(_errorDetails);
1424           PySys_SetObject((char*)"stderr", new_stderr);
1425           std::ostringstream stream;
1426           stream << "/tmp/PythonNode_";
1427           stream << getpid();
1428           ofstream errorfile(stream.str().c_str());
1429           if (errorfile.is_open())
1430             {
1431               errorfile << _script;
1432               errorfile.close();
1433             }
1434           PyErr_Print();
1435           PySys_SetObject((char*)"stderr", PySys_GetObject((char*)"__stderr__"));
1436           Py_DECREF(new_stderr);
1437           throw Exception("Error during execution");
1438         }
1439       DEBTRACE( "----------------End PyFuncNode::calculation---------------" );
1440
1441       DEBTRACE( "-----------------PyFuncNode::outputs-----------------" );
1442       int nres=1;
1443       if(result == Py_None)
1444         nres=0;
1445       else if(PyTuple_Check(result))
1446         nres=PyTuple_Size(result);
1447
1448       if(getNumberOfOutputPorts() != nres)
1449         {
1450           std::string msg="Number of output arguments : Mismatch between definition and execution";
1451           Py_DECREF(result);
1452           _errorDetails=msg;
1453           throw Exception(msg);
1454         }
1455
1456       pos=0;
1457 #ifdef _DEVDEBUG_
1458       PyObject_Print(result,stderr,Py_PRINT_RAW);
1459       cerr << endl;
1460 #endif
1461       list<OutputPort *>::iterator iter;
1462       try
1463       {
1464           for(iter = _setOfOutputPort.begin(); iter != _setOfOutputPort.end(); iter++)
1465             {
1466               OutputPyPort *p=(OutputPyPort *)*iter;
1467               DEBTRACE( "port name: " << p->getName() );
1468               DEBTRACE( "port kind: " << p->edGetType()->kind() );
1469               DEBTRACE( "port pos : " << pos );
1470               if(PyTuple_Check(result))ob=PyTuple_GetItem(result,pos) ;
1471               else ob=result;
1472               DEBTRACE( "ob refcnt: " << ob->ob_refcnt );
1473 #ifdef _DEVDEBUG_
1474               PyObject_Print(ob,stderr,Py_PRINT_RAW);
1475               cerr << endl;
1476 #endif
1477               p->put(ob);
1478               pos++;
1479             }
1480       }
1481       catch(ConversionException& ex)
1482       {
1483           Py_DECREF(result);
1484           _errorDetails=ex.what();
1485           throw;
1486       }
1487       DEBTRACE( "-----------------End PyFuncNode::outputs-----------------" );
1488       Py_DECREF(result);
1489   }
1490   DEBTRACE( "++++++++++++++ End PyFuncNode::execute: " << getName() << " ++++++++++++++++++++" );
1491 }
1492
1493 Node *PyFuncNode::simpleClone(ComposedNode *father, bool editionOnly) const
1494 {
1495   return new PyFuncNode(*this,father);
1496 }
1497
1498 void PyFuncNode::createRemoteAdaptedPyInterpretor(Engines::Container_ptr objContainer)
1499 {
1500   if(!CORBA::is_nil(_pynode))
1501     _pynode->UnRegister();
1502   _pynode=objContainer->createPyNode(getName().c_str(),getScript().c_str());
1503 }
1504
1505 Engines::PyNodeBase_var PyFuncNode::retrieveDftRemotePyInterpretorIfAny(Engines::Container_ptr objContainer) const
1506 {
1507   Engines::PyNode_var ret(objContainer->getDefaultPyNode(getName().c_str()));
1508   if(!CORBA::is_nil(ret))
1509     {
1510       ret->Register();
1511     }
1512   return Engines::PyNodeBase::_narrow(ret);
1513 }
1514
1515 void PyFuncNode::assignRemotePyInterpretor(Engines::PyNodeBase_var remoteInterp)
1516 {
1517   if(!CORBA::is_nil(_pynode))
1518     {
1519       Engines::PyNode_var tmpp(Engines::PyNode::_narrow(remoteInterp));
1520       if(_pynode->_is_equivalent(tmpp))
1521         return ;
1522     }
1523   if(!CORBA::is_nil(_pynode))
1524     _pynode->UnRegister();
1525   _pynode=Engines::PyNode::_narrow(remoteInterp);
1526 }
1527
1528 Engines::PyNodeBase_var PyFuncNode::getRemoteInterpreterHandle()
1529 {
1530   return Engines::PyNodeBase::_narrow(_pynode);
1531 }
1532
1533 //! Create a new node of same type with a given name
1534 PyFuncNode* PyFuncNode::cloneNode(const std::string& name)
1535 {
1536   PyFuncNode* n=new PyFuncNode(name);
1537   n->setScript(_script);
1538   n->setFname(_fname);
1539   list<InputPort *>::iterator iter;
1540   for(iter = _setOfInputPort.begin(); iter != _setOfInputPort.end(); iter++)
1541     {
1542       InputPyPort *p=(InputPyPort *)*iter;
1543       n->edAddInputPort(p->getName(),p->edGetType());
1544     }
1545   list<OutputPort *>::iterator iter2;
1546   for(iter2 = _setOfOutputPort.begin(); iter2 != _setOfOutputPort.end(); iter2++)
1547     {
1548       OutputPyPort *p=(OutputPyPort *)*iter2;
1549       n->edAddOutputPort(p->getName(),p->edGetType());
1550     }
1551   return n;
1552 }
1553
1554 std::string PyFuncNode::getContainerLog()
1555 {
1556   return PythonEntry::GetContainerLog(_mode,_container,this);
1557 }
1558
1559 void PyFuncNode::shutdown(int level)
1560 {
1561   DEBTRACE("PyFuncNode::shutdown " << level);
1562   if(_mode=="local")return;
1563   if(_container)
1564     {
1565       if(!CORBA::is_nil(_pynode)) _pynode->UnRegister();
1566       _pynode=Engines::PyNode::_nil();
1567       _container->shutdown(level);
1568     }
1569 }
1570
1571 void PyFuncNode::imposeResource(const std::string& resource_name,
1572                                 const std::string& container_name)
1573 {
1574   if(!resource_name.empty() && !container_name.empty())
1575   {
1576     _imposedResource = resource_name;
1577     _imposedContainer = container_name;
1578   }
1579 }
1580
1581 bool PyFuncNode::canAcceptImposedResource()
1582 {
1583   return _container != nullptr && _container->canAcceptImposedResource();
1584 }
1585
1586 bool PyFuncNode::hasImposedResource()const
1587 {
1588   return PythonEntry::hasImposedResource();
1589 }
1590