src/SALOMESDS/SALOMESDS_DataScopeServer.cxx

   1 // Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
   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 // Author : Anthony GEAY (EDF R&D)
  20
  21 #include "SALOMESDS_DataScopeServer.hxx"
  22 #include "SALOMESDS_DataServerManager.hxx"
  23 #include "SALOMESDS_PickelizedPyObjRdOnlyServer.hxx"
  24 #include "SALOMESDS_PickelizedPyObjRdExtServer.hxx"
  25 #include "SALOMESDS_PickelizedPyObjRdWrServer.hxx"
  26 #include "SALOMESDS_PickelizedPyObjRdExtInitServer.hxx"
  27 #include "SALOMESDS_TrustTransaction.hxx"
  28 #include "SALOMESDS_KeyWaiter.hxx"
  29 #include "SALOMESDS_Transaction.hxx"
  30 #include "SALOME_NamingService.hxx"
  31 #include "SALOMESDS_Exception.hxx"
  32
  33 #include <sstream>
  34 #include <iterator>
  35 #include <algorithm>
  36
  37 // agy : awful, to be factorized with ContainerManager.
  38 #ifndef WIN32
  39 #include <unistd.h>
  40 #else
  41 #include <process.h>
  42 #define getpid _getpid
  43 #endif
  44
  45 using namespace SALOMESDS;
  46
  47 std::size_t DataScopeServerBase::COUNTER=0;
  48
  49 void DataScopeKiller::shutdown()
  50 {
  51   Py_Finalize();
  52   _orb->shutdown(0);
  53 }
  54
  55 DataScopeServerBase::DataScopeServerBase(CORBA::ORB_ptr orb, SALOME::DataScopeKiller_var killer, const std::string& scopeName):_globals(0),_locals(0),_pickler(0),_orb(CORBA::ORB::_duplicate(orb)),_name(scopeName),_killer(killer)
  56 {
  57 }
  58
  59 DataScopeServerBase::DataScopeServerBase(const DataScopeServerBase& other):omniServant(other),ServantBase(other),_globals(0),_locals(0),_pickler(0),_name(other._name),_vars(other._vars),_killer(other._killer)
  60 {
  61 }
  62
  63 DataScopeServerBase::~DataScopeServerBase()
  64 {
  65   // _globals is borrowed ref -> do nothing
  66   Py_XDECREF(_locals);
  67   Py_XDECREF(_pickler);
  68   for(std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it=_vars.begin();it!=_vars.end();it++)
  69     {
  70        BasicDataServer *obj((*it).second);
  71        if(obj)
  72          {
  73            obj->decrRef();
  74          }
  75     }
  76 }
  77
  78 /*!
  79  * Called remotely -> to protect against throw
  80  */
  81 void DataScopeServerBase::ping()
  82 {
  83 }
  84
  85 /*!
  86  * Called remotely -> to protect against throw
  87  */
  88 char *DataScopeServerBase::getScopeName()
  89 {
  90   return CORBA::string_dup(_name.c_str());
  91 }
  92
  93 /*!
  94  * Called remotely -> to protect against throw
  95  */
  96 SALOME::StringVec *DataScopeServerBase::listVars()
  97 {
  98   SALOME::StringVec *ret(new SALOME::StringVec);
  99   std::size_t sz(_vars.size());
 100   ret->length(sz);
 101   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(_vars.begin());
 102   for(std::size_t i=0;i<sz;it++,i++)
 103     {
 104       BasicDataServer *obj((*it).second);
 105       std::string name(obj->getVarNameCpp());
 106       (*ret)[i]=CORBA::string_dup(name.c_str());
 107     }
 108   return ret;
 109 }
 110
 111 CORBA::Boolean DataScopeServerBase::existVar(const char *varName)
 112 {
 113   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it(_vars.begin());
 114   for(;it!=_vars.end();it++)
 115     if((*it).second->getVarNameCpp()==varName)
 116       return true;
 117   return false;
 118 }
 119
 120 SALOME::BasicDataServer_ptr DataScopeServerBase::retrieveVarInternal(const char *varName)
 121 {
 122   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it0(retrieveVarInternal3(varName));
 123   return SALOME::BasicDataServer::_duplicate((*it0).first);
 124 }
 125
 126 BasicDataServer *DataScopeServerBase::retrieveVarInternal2(const std::string& varName)
 127 {
 128   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it0(retrieveVarInternal3(varName));
 129   return (*it0).second;
 130 }
 131
 132 void DataScopeServerBase::deleteVar(const char *varName)
 133 {
 134   std::string varNameCpp(varName);
 135   std::vector<std::string> allNames(getAllVarNames());
 136   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varNameCpp));
 137   if(it==allNames.end())
 138     {
 139       std::ostringstream oss; oss << "DataScopeServerBase::deleteVar : name \"" << varNameCpp << "\" does not exists ! Possibilities are :";
 140       std::copy(allNames.begin(),allNames.end(),std::ostream_iterator<std::string>(oss,", "));
 141       throw Exception(oss.str());
 142     }
 143   std::size_t pos(std::distance(allNames.begin(),it));
 144   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it0(_vars.begin());
 145   for(std::size_t ii=0;ii<pos;ii++,it0++);
 146   (*it0).second->decrRef();
 147   _vars.erase(it0);
 148 }
 149
 150 CORBA::Boolean DataScopeServerBase::shutdownIfNotHostedByDSM(SALOME::DataScopeKiller_out killer)
 151 {
 152   SALOME_NamingService ns(_orb);
 153   CORBA::Object_var obj(ns.Resolve(DataServerManager::NAME_IN_NS));
 154   SALOME::DataServerManager_var dsm(SALOME::DataServerManager::_narrow(obj));
 155   if(CORBA::is_nil(dsm))
 156     throw Exception("Unable to reach in the NS the unique DataServerManager instance of the Session !");
 157   // destroy ref in the naming service
 158   std::string fullScopeName(SALOMESDS::DataServerManager::CreateAbsNameInNSFromScopeName(_name));
 159   ns.Destroy_Name(fullScopeName.c_str());
 160   // establish if dsm and this shared the same POA. If yes dsm and this are collocated !
 161   PortableServer::ServantBase *ret(0);
 162   try
 163     {
 164       ret=_poa->reference_to_servant(dsm);
 165     }
 166   catch(...) { ret=0; }
 167   //
 168   if(!ret)
 169     {
 170       enforcedRelease();
 171       killer=SALOME::DataScopeKiller::_duplicate(_killer);
 172       return true;
 173     }
 174   else
 175     {
 176       ret->_remove_ref();
 177       enforcedRelease();
 178       killer=SALOME::DataScopeKiller::_duplicate(_killer);
 179       return false;
 180     }
 181 }
 182
 183 SALOME::ByteVec *DataScopeServerBase::fetchSerializedContent(const char *varName)
 184 {
 185   BasicDataServer *var(retrieveVarInternal2(varName));
 186   PickelizedPyObjServer *varc(dynamic_cast<PickelizedPyObjServer *>(var));
 187   if(!varc)
 188     {
 189       std::ostringstream oss; oss << "DataScopeServerBase::fetchSerializedContent : var \"" << varName << "\" exists but it is not serialized !";
 190       throw Exception(oss.str());
 191     }
 192   return varc->fetchSerializedContent();
 193 }
 194
 195 SALOME::SeqOfByteVec *DataScopeServerBase::getAllKeysOfVarWithTypeDict(const char *varName)
 196 {
 197   BasicDataServer *var(retrieveVarInternal2(varName));
 198   PickelizedPyObjServer *varc(dynamic_cast<PickelizedPyObjServer *>(var));
 199   if(!varc)
 200     {
 201       std::ostringstream oss; oss << "DataScopeServerBase::getAllKeysOfVarWithTypeDict : var \"" << varName << "\" exists but it is not serialized !";
 202       throw Exception(oss.str());
 203     }
 204   if(!varc->isDict())
 205     {
 206       std::ostringstream oss; oss << "DataScopeServerBase::getAllKeysOfVarWithTypeDict : var \"" << varName << "\" exists but it is not a PyDict !";
 207       throw Exception(oss.str());
 208     }
 209   PyObject *keys(PyDict_Keys(varc->getPyObj()));
 210   if(!PyList_Check(keys))
 211     {
 212       std::ostringstream oss; oss << "DataScopeServerBase::getAllKeysOfVarWithTypeDict : var \"" << varName << "\" has keys but not of type list !";
 213       throw Exception(oss.str());
 214     }
 215   Py_ssize_t sz(PyList_Size(keys));
 216   SALOME::SeqOfByteVec *ret(new SALOME::SeqOfByteVec);
 217   ret->length(sz);
 218   for(Py_ssize_t i=0;i<sz;i++)
 219     {
 220       PyObject *item(PyList_GetItem(keys,i));
 221       Py_XINCREF(item);
 222       std::string pickel(varc->pickelize(item));//item consumed
 223       PickelizedPyObjServer::FromCppToByteSeq(pickel,(*ret)[i]);
 224     }
 225   Py_XDECREF(keys);
 226   return ret;
 227 }
 228
 229 void DataScopeServerBase::initializePython(int argc, char *argv[])
 230 {
 231   Py_Initialize();
 232   PyEval_InitThreads();
 233   PySys_SetArgv(argc,argv);
 234   PyObject *mainmod(PyImport_AddModule("__main__"));
 235   _globals=PyModule_GetDict(mainmod);
 236   if(PyDict_GetItemString(_globals, "__builtins__") == NULL)
 237     {
 238       PyObject *bimod(PyImport_ImportModule("__builtin__"));
 239       if (bimod == NULL || PyDict_SetItemString(_globals, "__builtins__", bimod) != 0)
 240         Py_FatalError("can't add __builtins__ to __main__");
 241       Py_XDECREF(bimod);
 242     }
 243   _locals=PyDict_New();
 244   PyObject *tmp(PyList_New(0));
 245   _pickler=PyImport_ImportModuleLevel(const_cast<char *>("cPickle"),_globals,_locals,tmp,-1);
 246 }
 247
 248 void DataScopeServerBase::registerToSalomePiDict() const
 249 {
 250   PyObject *mod(PyImport_ImportModule("addToKillList"));//new value
 251   if(!mod)
 252     return;
 253   PyObject *meth(PyObject_GetAttrString(mod,"addToKillList"));//new value
 254   if(!meth)
 255     { Py_XDECREF(mod); return ; }
 256   PyObject *args(PyTuple_New(2));
 257   PyTuple_SetItem(args,0,PyInt_FromLong(getpid()));
 258   PyTuple_SetItem(args,1,PyString_FromString("SALOME_DataScopeServerBase"));
 259   PyObject *res(PyObject_CallObject(meth,args));
 260   Py_XDECREF(args);
 261   Py_XDECREF(res);
 262   Py_XDECREF(meth);
 263   Py_XDECREF(mod);
 264 }
 265
 266 void DataScopeServerBase::setPOA(PortableServer::POA_var poa)
 267 {
 268   _poa=poa;
 269 }
 270
 271 void DataScopeServerBase::registerInNS(SALOME::DataScopeServerBase_ptr ptr)
 272 {
 273   std::string fullScopeName(SALOMESDS::DataServerManager::CreateAbsNameInNSFromScopeName(_name));
 274   SALOME_NamingService ns(_orb);
 275   ns.Register(ptr,fullScopeName.c_str());
 276 }
 277
 278 std::string DataScopeServerBase::BuildTmpVarNameFrom(const std::string& varName)
 279 {
 280   std::ostringstream oss;
 281   oss << varName << "@" << COUNTER++;
 282   return oss.str();
 283 }
 284
 285 std::vector< std::string > DataScopeServerBase::getAllVarNames() const
 286 {
 287   std::size_t sz(_vars.size());
 288   std::vector<std::string> ret(sz);
 289   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it(_vars.begin());
 290   for(std::size_t i=0;i<sz;it++,i++)
 291     ret[i]=(*it).second->getVarNameCpp();
 292   return ret;
 293 }
 294
 295 void DataScopeServerBase::checkNotAlreadyExistingVar(const std::string& varName) const
 296 {
 297   std::vector<std::string> allNames(getAllVarNames());
 298   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varName));
 299   if(it!=allNames.end())
 300     {
 301       std::ostringstream oss; oss << "DataScopeServerBase::checkNotAlreadyExistingVar : name \"" << varName << "\" already exists !";
 302       throw Exception(oss.str());
 303     }
 304 }
 305
 306 void DataScopeServerBase::checkExistingVar(const std::string& varName) const
 307 {
 308   std::vector<std::string> allNames(getAllVarNames());
 309   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varName));
 310   if(it==allNames.end())
 311     {
 312       std::ostringstream oss; oss << "DataScopeServerBase::checkExistingVar : name \"" << varName << "\" does not exist !";
 313       throw Exception(oss.str());
 314     }
 315 }
 316
 317 PickelizedPyObjServer *DataScopeServerBase::checkVarExistingAndDict(const std::string& varName)
 318 {
 319   checkExistingVar(varName);
 320   BasicDataServer *var(retrieveVarInternal2(varName.c_str()));
 321   PickelizedPyObjServer *ret(dynamic_cast<PickelizedPyObjServer *>(var));
 322   if(!ret)
 323     {
 324       std::ostringstream oss; oss << "TransactionAddKeyValueHard::prepareRollBackInCaseOfFailure : var \"" << varName << "\"exists but it is not serialized !";
 325       throw Exception(oss.str());
 326     }
 327   if(!ret->isDict())
 328     {
 329       std::ostringstream oss; oss << "TransactionAddKeyValueHard::prepareRollBackInCaseOfFailure : var \"" << varName << "\"exists but it is not a Dict !";
 330       throw Exception(oss.str());
 331     }
 332   return ret;
 333 }
 334
 335 void DataScopeServerBase::moveStatusOfVarFromRdWrToRdOnly(const std::string& varName)
 336 {
 337   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(retrieveVarInternal4(varName));
 338   std::pair< SALOME::BasicDataServer_var, BasicDataServer * >& p(*it);
 339   PickelizedPyObjRdWrServer *varc(dynamic_cast<PickelizedPyObjRdWrServer *>(p.second));
 340   if(!varc)
 341     throw Exception("DataScopeServerBase::moveStatusOfVarFromRdWrToRdOnly : var is not a RdWr !");
 342   PyObject *pyobj(varc->getPyObj()); Py_XINCREF(pyobj);
 343   PickelizedPyObjRdOnlyServer *newVar(new PickelizedPyObjRdOnlyServer(this,varName,pyobj));
 344   CORBA::Object_var obj(newVar->activate());
 345   SALOME::BasicDataServer_var obj2(SALOME::BasicDataServer::_narrow(obj));
 346   p.first=obj2; p.second=newVar;
 347   varc->decrRef();
 348 }
 349
 350 void DataScopeServerBase::moveStatusOfVarFromRdOnlyToRdWr(const std::string& varName)
 351 {
 352   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(retrieveVarInternal4(varName));
 353   std::pair< SALOME::BasicDataServer_var, BasicDataServer * >& p(*it);
 354   PickelizedPyObjRdOnlyServer *varc(dynamic_cast<PickelizedPyObjRdOnlyServer *>(p.second));
 355   if(!varc)
 356     throw Exception("DataScopeServerBase::moveStatusOfVarFromRdOnlyToRdWr : var is not a RdWr !");
 357   PyObject *pyobj(varc->getPyObj()); Py_XINCREF(pyobj);
 358   PickelizedPyObjRdWrServer *newVar(new PickelizedPyObjRdWrServer(this,varName,pyobj));
 359   CORBA::Object_var obj(newVar->activate());
 360   SALOME::BasicDataServer_var obj2(SALOME::BasicDataServer::_narrow(obj));
 361   p.first=obj2; p.second=newVar;
 362   varc->decrRef();
 363 }
 364
 365 void DataScopeServerBase::moveStatusOfVarFromRdExtOrRdExtInitToRdExtInit(const std::string& varName)
 366 {
 367   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(retrieveVarInternal4(varName));
 368   std::pair< SALOME::BasicDataServer_var, BasicDataServer * >& p(*it);
 369   PickelizedPyObjRdExtServer *varc0(dynamic_cast<PickelizedPyObjRdExtServer *>(p.second));
 370   PickelizedPyObjRdExtInitServer *varc1(dynamic_cast<PickelizedPyObjRdExtInitServer *>(p.second));
 371   if(!varc0 && !varc1)
 372     throw Exception("DataScopeServerBase::moveStatusOfVarFromRdExtOrRdExtInitToRdExtInit : var is neither RdExt nor RdExtInit !");
 373   if(varc0)
 374     {
 375       PyObject *pyobj(varc0->getPyObj()); Py_XINCREF(pyobj);
 376       PickelizedPyObjRdExtInitServer *newVar(new PickelizedPyObjRdExtInitServer(this,varName,pyobj));
 377       newVar->incrNbClients();
 378       CORBA::Object_var obj(newVar->activate());
 379       SALOME::BasicDataServer_var obj2(SALOME::BasicDataServer::_narrow(obj));
 380       p.first=obj2; p.second=newVar;
 381       varc0->decrRef();
 382     }
 383   else
 384     varc1->incrNbClients();
 385 }
 386
 387 void DataScopeServerBase::moveStatusOfVarFromRdExtOrRdExtInitToRdExt(const std::string& varName)
 388 {
 389   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(retrieveVarInternal4(varName));
 390   std::pair< SALOME::BasicDataServer_var, BasicDataServer * >& p(*it);
 391   PickelizedPyObjRdExtInitServer *varc0(dynamic_cast<PickelizedPyObjRdExtInitServer *>(p.second));
 392   PickelizedPyObjRdExtServer *varc1(dynamic_cast<PickelizedPyObjRdExtServer *>(p.second));
 393   if(!varc0 && !varc1)
 394     throw Exception("DataScopeServerBase::moveStatusOfVarFromRdExtOrRdExtInitToRdExt : var is not a RdExtInit !");
 395   if(varc0)
 396     {
 397       if(varc0->decrNbClients())
 398         {
 399           PyObject *pyobj(varc0->getPyObj()); Py_XINCREF(pyobj);
 400           PickelizedPyObjRdExtServer *newVar(new PickelizedPyObjRdExtServer(this,varName,pyobj));
 401           CORBA::Object_var obj(newVar->activate());
 402           SALOME::BasicDataServer_var obj2(SALOME::BasicDataServer::_narrow(obj));
 403           p.first=obj2; p.second=newVar;
 404           varc0->decrRef();
 405         }
 406     }
 407 }
 408
 409 std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator DataScopeServerBase::retrieveVarInternal3(const std::string& varName) const
 410 {
 411   std::vector<std::string> allNames(getAllVarNames());
 412   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varName));
 413   if(it==allNames.end())
 414     {
 415       std::ostringstream oss; oss << "DataScopeServerBase::retrieveVarInternal3 : name \"" << varName << "\" does not exists ! Possibilities are :";
 416       std::copy(allNames.begin(),allNames.end(),std::ostream_iterator<std::string>(oss,", "));
 417       throw Exception(oss.str());
 418     }
 419   std::size_t pos(std::distance(allNames.begin(),it));
 420   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it0(_vars.begin());
 421   for(std::size_t i=0;i<pos;i++,it0++);
 422   return it0;
 423 }
 424
 425 std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator DataScopeServerBase::retrieveVarInternal4(const std::string& varName)
 426 {
 427   std::vector<std::string> allNames(getAllVarNames());
 428   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varName));
 429   if(it==allNames.end())
 430     {
 431       std::ostringstream oss; oss << "DataScopeServerBase::retrieveVarInternal4 : name \"" << varName << "\" does not exists ! Possibilities are :";
 432       std::copy(allNames.begin(),allNames.end(),std::ostream_iterator<std::string>(oss,", "));
 433       throw Exception(oss.str());
 434     }
 435   std::size_t pos(std::distance(allNames.begin(),it));
 436   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it0(_vars.begin());
 437   for(std::size_t i=0;i<pos;i++,it0++);
 438   return it0;
 439 }
 440
 441 ///////
 442
 443 DataScopeServer::DataScopeServer(CORBA::ORB_ptr orb, SALOME::DataScopeKiller_var killer, const std::string& scopeName):DataScopeServerBase(orb,killer,scopeName)
 444 {
 445 }
 446
 447 DataScopeServer::DataScopeServer(const DataScopeServer& other):omniServant(other),ServantBase(other),DataScopeServerBase(other)
 448 {
 449 }
 450
 451 SALOME::PickelizedPyObjRdOnlyServer_ptr DataScopeServer::createRdOnlyVar(const char *varName, const SALOME::ByteVec& constValue)
 452 {
 453   std::string varNameCpp(varName);
 454   checkNotAlreadyExistingVar(varNameCpp);
 455   PickelizedPyObjRdOnlyServer *tmp(new PickelizedPyObjRdOnlyServer(this,varNameCpp,constValue));
 456   CORBA::Object_var ret(tmp->activate());
 457   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 458   _vars.push_back(p);
 459   return SALOME::PickelizedPyObjRdOnlyServer::_narrow(ret);
 460 }
 461
 462 SALOME::PickelizedPyObjRdExtServer_ptr DataScopeServer::createRdExtVar(const char *varName, const SALOME::ByteVec& constValue)
 463 {
 464   std::string varNameCpp(varName);
 465   checkNotAlreadyExistingVar(varNameCpp);
 466   PickelizedPyObjRdExtServer *tmp(new PickelizedPyObjRdExtServer(this,varNameCpp,constValue));
 467   CORBA::Object_var ret(tmp->activate());
 468   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 469   _vars.push_back(p);
 470   return SALOME::PickelizedPyObjRdExtServer::_narrow(ret);
 471 }
 472
 473 SALOME::PickelizedPyObjRdWrServer_ptr DataScopeServer::createRdWrVar(const char *typeName, const char *varName)
 474 {
 475   std::string varNameCpp(varName),typeNameCpp(typeName);
 476   checkNotAlreadyExistingVar(varNameCpp);
 477   PickelizedPyObjRdWrServer *tmp(new PickelizedPyObjRdWrServer(this,typeNameCpp,varNameCpp));
 478   CORBA::Object_var ret(tmp->activate());
 479   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 480   _vars.push_back(p);
 481   return SALOME::PickelizedPyObjRdWrServer::_narrow(ret);
 482 }
 483
 484 DataScopeServer::~DataScopeServer()
 485 {
 486 }
 487
 488 ////////
 489
 490 DataScopeServerTransaction::DataScopeServerTransaction(CORBA::ORB_ptr orb, SALOME::DataScopeKiller_var killer, const std::string& scopeName):DataScopeServerBase(orb,killer,scopeName)
 491 {
 492   CORBA::Object_var obj(_orb->resolve_initial_references("RootPOA"));
 493   PortableServer::POA_var poa(PortableServer::POA::_narrow(obj));
 494   //
 495   PortableServer::POAManager_var mgr(poa->the_POAManager());
 496   CORBA::PolicyList policies;
 497   policies.length(1);
 498   PortableServer::ThreadPolicy_var threadPol(poa->create_thread_policy(PortableServer::ORB_CTRL_MODEL));
 499   policies[0]=PortableServer::ThreadPolicy::_duplicate(threadPol);
 500   PortableServer::POA_var poa2(poa->create_POA("POAForWaiters",mgr,policies));
 501   threadPol->destroy();
 502   //
 503   _poa_for_key_waiter=poa2;
 504 }
 505
 506 DataScopeServerTransaction::DataScopeServerTransaction(const DataScopeServerTransaction& other):omniServant(other),ServantBase(other),DataScopeServerBase(other),_poa_for_key_waiter(other.getPOA4KeyWaiter())
 507 {
 508 }
 509
 510 char *DataScopeServerTransaction::getAccessOfVar(const char *varName)
 511 {
 512   std::string varNameCpp(varName);
 513   checkExistingVar(varNameCpp);
 514   BasicDataServer *var(retrieveVarInternal2(varName));
 515   if(!var)
 516     throw Exception("DataScopeServerTransaction::getAccessOfVar : variable is NULL !");
 517   PickelizedPyObjServer *varc(dynamic_cast<PickelizedPyObjServer *>(var));
 518   if(!varc)
 519     throw Exception("DataScopeServerTransaction::getAccessOfVar : variable is not of type PickelizedPyObjServer !");
 520   std::string ret(varc->getAccessStr());
 521   return CORBA::string_dup(ret.c_str());
 522 }
 523
 524 /*!
 525  * This method is here to retrieve atomically accessStr and picklization.
 526  */
 527 void DataScopeServerTransaction::fetchAndGetAccessOfVar(const char *varName, CORBA::String_out access, SALOME::ByteVec_out data)
 528 {
 529   access=getAccessOfVar(varName);
 530   data=fetchSerializedContent(varName);
 531 }
 532
 533 void DataScopeServerTransaction::createRdOnlyVarInternal(const std::string& varName, const SALOME::ByteVec& constValue)
 534 {
 535   checkNotAlreadyExistingVar(varName);
 536   PickelizedPyObjRdOnlyServer *tmp(new PickelizedPyObjRdOnlyServer(this,varName,constValue));
 537   CORBA::Object_var ret(tmp->activate());
 538   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 539   _vars.push_back(p);
 540 }
 541
 542 void DataScopeServerTransaction::createRdExtVarInternal(const std::string& varName, const SALOME::ByteVec& constValue)
 543 {
 544   checkNotAlreadyExistingVar(varName);
 545   PickelizedPyObjRdExtServer *tmp(new PickelizedPyObjRdExtServer(this,varName,constValue));
 546   CORBA::Object_var ret(tmp->activate());
 547   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 548   _vars.push_back(p);
 549 }
 550
 551 void DataScopeServerTransaction::createRdExtInitVarInternal(const std::string& varName, const SALOME::ByteVec& constValue)
 552 {
 553   checkNotAlreadyExistingVar(varName);
 554   PickelizedPyObjRdExtInitServer *tmp(new PickelizedPyObjRdExtInitServer(this,varName,constValue));
 555   CORBA::Object_var ret(tmp->activate());
 556   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 557   _vars.push_back(p);
 558 }
 559
 560 void DataScopeServerTransaction::createRdWrVarInternal(const std::string& varName, const SALOME::ByteVec& constValue)
 561 {
 562   checkNotAlreadyExistingVar(varName);
 563   PickelizedPyObjRdWrServer *tmp(new PickelizedPyObjRdWrServer(this,varName,constValue));
 564   CORBA::Object_var ret(tmp->activate());
 565   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 566   _vars.push_back(p);
 567 }
 568
 569 SALOME::Transaction_ptr DataScopeServerTransaction::createRdOnlyVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 570 {
 571   checkNotAlreadyExistingVar(varName);
 572   TransactionRdOnlyVarCreate *ret(new TransactionRdOnlyVarCreate(this,varName,constValue));
 573   CORBA::Object_var obj(ret->activate());
 574   return SALOME::Transaction::_narrow(obj);
 575 }
 576
 577 SALOME::Transaction_ptr DataScopeServerTransaction::createRdExtVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 578 {
 579   checkNotAlreadyExistingVar(varName);
 580   TransactionRdExtVarCreate *ret(new TransactionRdExtVarCreate(this,varName,constValue));
 581   CORBA::Object_var obj(ret->activate());
 582   return SALOME::Transaction::_narrow(obj);
 583 }
 584
 585 SALOME::Transaction_ptr DataScopeServerTransaction::createRdExtInitVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 586 {
 587   checkNotAlreadyExistingVar(varName);
 588   TransactionRdExtInitVarCreate *ret(new TransactionRdExtInitVarCreate(this,varName,constValue));
 589   CORBA::Object_var obj(ret->activate());
 590   return SALOME::Transaction::_narrow(obj);
 591 }
 592
 593 SALOME::Transaction_ptr DataScopeServerTransaction::createRdWrVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 594 {
 595   checkNotAlreadyExistingVar(varName);
 596   TransactionRdWrVarCreate *ret(new TransactionRdWrVarCreate(this,varName,constValue));
 597   CORBA::Object_var obj(ret->activate());
 598   return SALOME::Transaction::_narrow(obj);
 599 }
 600
 601 void DataScopeServerTransaction::addWaitKey(KeyWaiter *kw)
 602 {
 603   if(!kw)
 604     throw Exception("DataScopeServerTransaction::addWaitKey : NULL input object !");
 605   _waiting_keys.push_back(kw);
 606 }
 607
 608 void DataScopeServerTransaction::pingKey(PyObject *keyObj)
 609 {
 610   PyObject *cmpObj(getPyCmpFunc());
 611   if(!keyObj)
 612     throw Exception("ataScopeServerTransaction::pingKey : Key Object is NULL !");
 613   PyObject *args(PyTuple_New(2));
 614   PyTuple_SetItem(args,0,keyObj); Py_XINCREF(keyObj);
 615   std::size_t ii(0);
 616   // this part does nothing except to be sure that in notify key all will be OK.
 617   for(std::list< KeyWaiter *>::iterator it=_waiting_keys.begin();it!=_waiting_keys.end();it++,ii++)
 618     {
 619       PyObject *waitKey((*it)->getKeyPyObj());
 620       PyTuple_SetItem(args,1,waitKey); Py_XINCREF(waitKey);
 621       PyObject *res(PyObject_CallObject(cmpObj,args));
 622       if(res==NULL)
 623         {
 624           std::ostringstream oss; oss << "DataScopeServerTransaction::pingKey : for object id #" << ii << " error during cmp(k,wk[i]) !";
 625           throw Exception(oss.str());
 626         }
 627       PyInt_AsLong(res);
 628       if(PyErr_Occurred())
 629         {
 630           std::ostringstream oss; oss << "DataScopeServerTransaction::pingKey : for object id #" << ii << " error during interpretation of cmp(k,wk[i]) !";
 631           throw Exception(oss.str());
 632         }
 633       Py_XDECREF(res);
 634     }
 635 }
 636
 637 void DataScopeServerTransaction::notifyKey(const std::string& varName, PyObject *keyObj, PyObject *valueObj)
 638 {
 639   PyObject *cmpObj(getPyCmpFunc());
 640   if(!keyObj)
 641     throw Exception("DataScopeServerTransaction::notifyKey : MAIN INTERNAL ERROR ! Key Object is NULL !");
 642   PyObject *args(PyTuple_New(2));
 643   PyTuple_SetItem(args,0,keyObj); Py_XINCREF(keyObj);
 644   std::size_t ii(0);
 645   std::list< KeyWaiter *> newList,listOfEltToWakeUp;
 646   for(std::list< KeyWaiter *>::iterator it=_waiting_keys.begin();it!=_waiting_keys.end();it++,ii++)
 647     {
 648       if((*it)->getVarName()!=varName)
 649         {
 650           newList.push_back(*it);
 651           continue;
 652         }
 653       PyObject *waitKey((*it)->getKeyPyObj());
 654       PyTuple_SetItem(args,1,waitKey); Py_XINCREF(waitKey);
 655       PyObject *res(PyObject_CallObject(cmpObj,args));
 656       if(res==NULL)
 657         {
 658           std::ostringstream oss; oss << "DataScopeServerTransaction::notifyKey : MAIN INTERNAL ERROR ! for object id #" << ii << " error during cmp(k,wk[i]) !";
 659           throw Exception(oss.str());
 660         }
 661       long resCpp(PyInt_AsLong(res));
 662       if(PyErr_Occurred())
 663         {
 664           std::ostringstream oss; oss << "DataScopeServerTransaction::notifyKey : MAIN INTERNAL ERROR ! for object id #" << ii << " error during interpretation of cmp(k,wk[i]) !";
 665           throw Exception(oss.str());
 666         }
 667       Py_XDECREF(res);
 668       if(resCpp==0)
 669         listOfEltToWakeUp.push_back(*it);
 670       else
 671         newList.push_back(*it);
 672     }
 673   for(std::list< KeyWaiter *>::iterator it=listOfEltToWakeUp.begin();it!=listOfEltToWakeUp.end();it++)
 674     (*it)->valueJustCome(valueObj);
 675   for(std::list< KeyWaiter *>::iterator it=listOfEltToWakeUp.begin();it!=listOfEltToWakeUp.end();it++)
 676     (*it)->go();
 677   _waiting_keys=newList;
 678 }
 679
 680 SALOME::Transaction_ptr DataScopeServerTransaction::addKeyValueInVarHard(const char *varName, const SALOME::ByteVec& key, const SALOME::ByteVec& value)
 681 {
 682   checkVarExistingAndDict(varName);
 683   TransactionAddKeyValueHard *ret(new TransactionAddKeyValueHard(this,varName,key,value));
 684   CORBA::Object_var obj(ret->activate());
 685   return SALOME::Transaction::_narrow(obj);
 686 }
 687
 688 SALOME::Transaction_ptr DataScopeServerTransaction::addKeyValueInVarErrorIfAlreadyExisting(const char *varName, const SALOME::ByteVec& key, const SALOME::ByteVec& value)
 689 {
 690   checkVarExistingAndDict(varName);
 691   TransactionAddKeyValueErrorIfAlreadyExisting *ret(new TransactionAddKeyValueErrorIfAlreadyExisting(this,varName,key,value));
 692   CORBA::Object_var obj(ret->activate());
 693   return SALOME::Transaction::_narrow(obj);
 694 }
 695
 696 SALOME::TransactionMultiKeyAddSession_ptr DataScopeServerTransaction::addMultiKeyValueSession(const char *varName)
 697 {
 698   checkVarExistingAndDict(varName);
 699   TransactionMultiKeyAddSession *ret(new TransactionMultiKeyAddSession(this,varName));
 700   CORBA::Object_var obj(ret->activate());
 701   return SALOME::TransactionMultiKeyAddSession::_narrow(obj);
 702 }
 703
 704 SALOME::Transaction_ptr DataScopeServerTransaction::removeKeyInVarErrorIfNotAlreadyExisting(const char *varName, const SALOME::ByteVec& key)
 705 {
 706   checkVarExistingAndDict(varName);
 707   TransactionRemoveKeyInVarErrorIfNotAlreadyExisting *ret(new TransactionRemoveKeyInVarErrorIfNotAlreadyExisting(this,varName,key));
 708   CORBA::Object_var obj(ret->activate());
 709   return SALOME::Transaction::_narrow(obj);
 710 }
 711
 712 SALOME::TransactionRdWrAccess_ptr DataScopeServerTransaction::createWorkingVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 713 {
 714   std::string varNameCpp(varName);
 715   checkNotAlreadyExistingVar(varName);
 716   PickelizedPyObjRdWrServer *tmp(new PickelizedPyObjRdWrServer(this,varNameCpp,constValue));
 717   CORBA::Object_var obj(tmp->activate());
 718   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(obj),tmp);
 719   _vars.push_back(p);
 720   //
 721   TransactionMorphRdWrIntoRdOnly *ret(new TransactionMorphRdWrIntoRdOnly(this,varName));
 722   CORBA::Object_var obj2(ret->activate());
 723   return SALOME::TransactionRdWrAccess::_narrow(obj2);
 724 }
 725
 726 SALOME::Transaction_ptr DataScopeServerTransaction::killVarTransac(const char *varName)
 727 {
 728   std::string varNameCpp(varName);
 729   checkExistingVar(varNameCpp);
 730   //
 731   TransactionKillVar *ret(new TransactionKillVar(this,varName));
 732   CORBA::Object_var obj2(ret->activate());
 733   return SALOME::Transaction::_narrow(obj2);
 734 }
 735
 736 SALOME::KeyWaiter_ptr DataScopeServerTransaction::waitForKeyInVar(const char *varName, const SALOME::ByteVec& keyVal)
 737 {
 738   PickelizedPyObjServer *pickelObj(checkVarExistingAndDict(varName));
 739   KeyWaiter *ret(new KeyWaiter(pickelObj,keyVal));
 740   CORBA::Object_var obj(ret->activate());//KeyWaiter instance activated inside a multithread POA contrary to all of objects in SALOMESDS in single thread !
 741   return SALOME::KeyWaiter::_narrow(obj);
 742 }
 743
 744 SALOME::KeyWaiter_ptr DataScopeServerTransaction::waitForKeyInVarAndKillIt(const char *varName, const SALOME::ByteVec& keyVal, SALOME::Transaction_out transac)
 745 {
 746   PickelizedPyObjServer *pickelObj(checkVarExistingAndDict(varName));
 747   KeyWaiter *ret0(new KeyWaiter(pickelObj,keyVal));
 748   CORBA::Object_var obj(ret0->activate());//KeyWaiter instance activated inside a multithread POA contrary to all of objects in SALOMESDS in single thread !
 749   //
 750   TransactionRemoveKeyInVarErrorIfNotAlreadyExisting *ret1(new TransactionRemoveKeyInVarErrorIfNotAlreadyExisting(this,varName,keyVal));
 751   CORBA::Object_var obj2(ret1->activate());
 752   transac=SALOME::Transaction::_narrow(obj2);
 753   //
 754   return SALOME::KeyWaiter::_narrow(obj);
 755 }
 756
 757 SALOME::ByteVec *DataScopeServerTransaction::waitForMonoThrRev(SALOME::KeyWaiter_ptr kw)
 758 {
 759   PortableServer::ServantBase *ret(0);
 760   try
 761     {
 762       ret=_poa_for_key_waiter->reference_to_servant(kw);// Warning ref cnt of ret has been incremented !
 763     }
 764   catch(...) { ret=0; }
 765   KeyWaiter *retc(dynamic_cast<KeyWaiter *>(ret));
 766   if(!retc)
 767     throw Exception("DataScopeServerTransaction::invokeMonoThr : internal error 1 !");
 768   retc->_remove_ref();// restore the counter afer _poa_for_key_waiter->reference_to_servant(kw)
 769   SALOME::ByteVec *zeRet(retc->waitForMonoThr());
 770   retc->enforcedRelease();
 771   return zeRet;
 772 }
 773
 774 SALOME::ByteVec *DataScopeServerTransaction::waitForAndKill(SALOME::KeyWaiter_ptr kw)
 775 {
 776   PortableServer::ServantBase *ret(0);
 777   try
 778     {
 779       ret=_poa_for_key_waiter->reference_to_servant(kw);// Warning ref cnt of ret has been incremented !
 780     }
 781   catch(...) { ret=0; }
 782   KeyWaiter *retc(dynamic_cast<KeyWaiter *>(ret));
 783   if(!retc)
 784     throw Exception("DataScopeServerTransaction::invokeMonoThr : internal error 1 !");
 785   retc->_remove_ref();// restore the counter afer _poa_for_key_waiter->reference_to_servant(kw)
 786   SALOME::ByteVec *zeRet(retc->waitForAndKill());
 787   retc->enforcedRelease();
 788   return zeRet;
 789 }
 790
 791 void DataScopeServerTransaction::atomicApply(const SALOME::ListOfTransaction& transactions)
 792 {
 793   std::size_t sz(transactions.length());
 794   if(sz==0)
 795     return ;
 796   std::vector< AutoServantPtr<Transaction> > transactionsCpp(sz);
 797   for(std::size_t i=0;i<sz;i++)
 798     {
 799       PortableServer::ServantBase *eltBase(0);
 800       Transaction *elt(0);
 801       try
 802         {
 803           eltBase=_poa->reference_to_servant(transactions[i]);
 804           elt=dynamic_cast<Transaction *>(eltBase);
 805         }
 806       catch(...)
 807         {
 808           std::ostringstream oss; oss << "DataScopeServerTransaction::atomicApply : the elt #" << i << " is invalid !";
 809           throw Exception(oss.str());
 810         }
 811       if(!elt)
 812         {
 813           std::ostringstream oss; oss << "DataScopeServerTransaction::atomicApply : the elt #" << i << " is null ?";
 814           throw Exception(oss.str());
 815         }
 816       elt->_remove_ref();
 817       transactionsCpp[i]=elt;
 818     }
 819   {// important do not merge loops !
 820     std::vector<TrustTransaction> transactions2(sz);
 821     bool mustRollback(true);
 822     for(std::size_t i=0;i<sz;i++)
 823       transactions2[i].setTransaction(transactionsCpp[i],&mustRollback);
 824     for(std::size_t i=0;i<sz;i++)
 825       transactions2[i].operate();
 826     mustRollback=false;
 827   }
 828   for(std::size_t i=0;i<sz;i++)
 829     transactionsCpp[i]->notify();
 830 }
 831
 832 /*!
 833  * Returns borrowed reference.
 834  */
 835 PyObject *DataScopeServerTransaction::getPyCmpFunc()
 836 {
 837   PyObject *builtins(PyDict_GetItemString(_globals,"__builtins__"));//borrowed
 838   if(builtins==NULL)
 839     throw Exception("Fail to find reference to builtins !");
 840   PyObject *builtins2(PyModule_GetDict(builtins));//borrowed
 841   if(builtins2==NULL)
 842     throw Exception("Fail to invoke __dict__ on builtins !");
 843   PyObject *cmpObj(PyDict_GetItemString(builtins2,"cmp"));
 844   if(cmpObj==NULL)
 845     throw Exception("Fail to find cmp in __builtins__ !");
 846   return cmpObj;
 847 }
 848
 849 DataScopeServerTransaction::~DataScopeServerTransaction()
 850 {
 851 }
 852