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