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 RequestSwitcher::RequestSwitcher(CORBA::ORB_ptr orb, DataScopeServerTransaction *ds):RequestSwitcherBase(orb),_ds(ds)
  56 {
  57 }
  58
  59 SALOME::StringVec *RequestSwitcher::listVars()
  60 {
  61   return _ds->listVars();
  62 }
  63
  64 SALOME::ByteVec *RequestSwitcher::fetchSerializedContent(const char *varName)
  65 {
  66   return _ds->fetchSerializedContent(varName);
  67 }
  68
  69 void RequestSwitcher::fetchAndGetAccessOfVar(const char *varName, CORBA::String_out access, SALOME::ByteVec_out data)
  70 {
  71   return _ds->fetchAndGetAccessOfVar(varName,access,data);
  72 }
  73
  74 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)
  75 {
  76 }
  77
  78 DataScopeServerBase::DataScopeServerBase(const DataScopeServerBase& other):omniServant(other),ServantBase(other),_globals(0),_locals(0),_pickler(0),_name(other._name),_vars(other._vars),_killer(other._killer)
  79 {
  80 }
  81
  82 DataScopeServerBase::~DataScopeServerBase()
  83 {
  84   // _globals is borrowed ref -> do nothing
  85   Py_XDECREF(_locals);
  86   Py_XDECREF(_pickler);
  87   for(std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it=_vars.begin();it!=_vars.end();it++)
  88     {
  89        BasicDataServer *obj((*it).second);
  90        if(obj)
  91          {
  92            obj->decrRef();
  93          }
  94     }
  95 }
  96
  97 /*!
  98  * Called remotely -> to protect against throw
  99  */
 100 void DataScopeServerBase::ping()
 101 {
 102 }
 103
 104 /*!
 105  * Called remotely -> to protect against throw
 106  */
 107 char *DataScopeServerBase::getScopeName()
 108 {
 109   return CORBA::string_dup(_name.c_str());
 110 }
 111
 112 /*!
 113  * Called remotely -> to protect against throw
 114  */
 115 SALOME::StringVec *DataScopeServerBase::listVars()
 116 {
 117   SALOME::StringVec *ret(new SALOME::StringVec);
 118   std::size_t sz(_vars.size());
 119   ret->length(sz);
 120   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(_vars.begin());
 121   for(std::size_t i=0;i<sz;it++,i++)
 122     {
 123       BasicDataServer *obj((*it).second);
 124       std::string name(obj->getVarNameCpp());
 125       (*ret)[i]=CORBA::string_dup(name.c_str());
 126     }
 127   return ret;
 128 }
 129
 130 CORBA::Boolean DataScopeServerBase::existVar(const char *varName)
 131 {
 132   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it(_vars.begin());
 133   for(;it!=_vars.end();it++)
 134     if((*it).second->getVarNameCpp()==varName)
 135       return true;
 136   return false;
 137 }
 138
 139 SALOME::BasicDataServer_ptr DataScopeServerBase::retrieveVarInternal(const char *varName)
 140 {
 141   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it0(retrieveVarInternal3(varName));
 142   return SALOME::BasicDataServer::_duplicate((*it0).first);
 143 }
 144
 145 BasicDataServer *DataScopeServerBase::retrieveVarInternal2(const std::string& varName)
 146 {
 147   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it0(retrieveVarInternal3(varName));
 148   return (*it0).second;
 149 }
 150
 151 void DataScopeServerBase::deleteVar(const char *varName)
 152 {
 153   std::string varNameCpp(varName);
 154   std::vector<std::string> allNames(getAllVarNames());
 155   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varNameCpp));
 156   if(it==allNames.end())
 157     {
 158       std::ostringstream oss; oss << "DataScopeServerBase::deleteVar : name \"" << varNameCpp << "\" does not exists ! Possibilities are :";
 159       std::copy(allNames.begin(),allNames.end(),std::ostream_iterator<std::string>(oss,", "));
 160       throw Exception(oss.str());
 161     }
 162   std::size_t pos(std::distance(allNames.begin(),it));
 163   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it0(_vars.begin());
 164   for(std::size_t ii=0;ii<pos;ii++,it0++);
 165   (*it0).second->decrRef();
 166   _vars.erase(it0);
 167 }
 168
 169 CORBA::Boolean DataScopeServerBase::shutdownIfNotHostedByDSM(SALOME::DataScopeKiller_out killer)
 170 {
 171   SALOME_NamingService ns(_orb);
 172   CORBA::Object_var obj(ns.Resolve(DataServerManager::NAME_IN_NS));
 173   SALOME::DataServerManager_var dsm(SALOME::DataServerManager::_narrow(obj));
 174   if(CORBA::is_nil(dsm))
 175     throw Exception("Unable to reach in the NS the unique DataServerManager instance of the Session !");
 176   // destroy ref in the naming service
 177   std::string fullScopeName(SALOMESDS::DataServerManager::CreateAbsNameInNSFromScopeName(_name));
 178   ns.Destroy_Name(fullScopeName.c_str());
 179   // establish if dsm and this shared the same POA. If yes dsm and this are collocated !
 180   PortableServer::ServantBase *ret(0);
 181   try
 182     {
 183       ret=_poa->reference_to_servant(dsm);
 184     }
 185   catch(...) { ret=0; }
 186   //
 187   if(!ret)
 188     {
 189       enforcedRelease();
 190       killer=SALOME::DataScopeKiller::_duplicate(_killer);
 191       return true;
 192     }
 193   else
 194     {
 195       ret->_remove_ref();
 196       enforcedRelease();
 197       killer=SALOME::DataScopeKiller::_duplicate(_killer);
 198       return false;
 199     }
 200 }
 201
 202 SALOME::ByteVec *DataScopeServerBase::fetchSerializedContent(const char *varName)
 203 {
 204   BasicDataServer *var(retrieveVarInternal2(varName));
 205   PickelizedPyObjServer *varc(dynamic_cast<PickelizedPyObjServer *>(var));
 206   if(!varc)
 207     {
 208       std::ostringstream oss; oss << "DataScopeServerBase::fetchSerializedContent : var \"" << varName << "\" exists but it is not serialized !";
 209       throw Exception(oss.str());
 210     }
 211   return varc->fetchSerializedContent();
 212 }
 213
 214 SALOME::SeqOfByteVec *DataScopeServerBase::getAllKeysOfVarWithTypeDict(const char *varName)
 215 {
 216   BasicDataServer *var(retrieveVarInternal2(varName));
 217   PickelizedPyObjServer *varc(dynamic_cast<PickelizedPyObjServer *>(var));
 218   if(!varc)
 219     {
 220       std::ostringstream oss; oss << "DataScopeServerBase::getAllKeysOfVarWithTypeDict : var \"" << varName << "\" exists but it is not serialized !";
 221       throw Exception(oss.str());
 222     }
 223   if(!varc->isDict())
 224     {
 225       std::ostringstream oss; oss << "DataScopeServerBase::getAllKeysOfVarWithTypeDict : var \"" << varName << "\" exists but it is not a PyDict !";
 226       throw Exception(oss.str());
 227     }
 228   PyObject *keys(PyDict_Keys(varc->getPyObj()));
 229   if(!PyList_Check(keys))
 230     {
 231       std::ostringstream oss; oss << "DataScopeServerBase::getAllKeysOfVarWithTypeDict : var \"" << varName << "\" has keys but not of type list !";
 232       throw Exception(oss.str());
 233     }
 234   Py_ssize_t sz(PyList_Size(keys));
 235   SALOME::SeqOfByteVec *ret(new SALOME::SeqOfByteVec);
 236   ret->length(sz);
 237   for(Py_ssize_t i=0;i<sz;i++)
 238     {
 239       PyObject *item(PyList_GetItem(keys,i));
 240       Py_XINCREF(item);
 241       std::string pickel(varc->pickelize(item));//item consumed
 242       PickelizedPyObjServer::FromCppToByteSeq(pickel,(*ret)[i]);
 243     }
 244   Py_XDECREF(keys);
 245   return ret;
 246 }
 247
 248 void DataScopeServerBase::takeANap(CORBA::Double napDurationInSec)
 249 {
 250   if(napDurationInSec<0.)
 251     throw Exception("DataScopeServerBase::takeANap : negative value !");
 252 #ifndef WIN32
 253   struct timespec req,rem;
 254   long nbSec((long)napDurationInSec);
 255   double remainTime(napDurationInSec-(double)nbSec);
 256   req.tv_sec=nbSec;
 257   req.tv_nsec=(long)(remainTime*1000000.);
 258   int ret(nanosleep(&req,&rem));
 259   if(ret!=0)
 260     throw Exception("DataScopeServerBase::takeANap : nap not finished as expected !");
 261 #else
 262   throw Exception("DataScopeServerBase::takeANap : not implemented for Windows !");
 263 #endif
 264 }
 265
 266 void DataScopeServerBase::initializePython(int argc, char *argv[])
 267 {
 268   Py_Initialize();
 269   PyEval_InitThreads();
 270   PySys_SetArgv(argc,argv);
 271   PyObject *mainmod(PyImport_AddModule("__main__"));
 272   _globals=PyModule_GetDict(mainmod);
 273   if(PyDict_GetItemString(_globals, "__builtins__") == NULL)
 274     {
 275       PyObject *bimod(PyImport_ImportModule("__builtin__"));
 276       if (bimod == NULL || PyDict_SetItemString(_globals, "__builtins__", bimod) != 0)
 277         Py_FatalError("can't add __builtins__ to __main__");
 278       Py_XDECREF(bimod);
 279     }
 280   _locals=PyDict_New();
 281   PyObject *tmp(PyList_New(0));
 282   _pickler=PyImport_ImportModuleLevel(const_cast<char *>("cPickle"),_globals,_locals,tmp,-1);
 283 }
 284
 285 void DataScopeServerBase::registerToSalomePiDict() const
 286 {
 287   PyObject *mod(PyImport_ImportModule("addToKillList"));//new value
 288   if(!mod)
 289     return;
 290   PyObject *meth(PyObject_GetAttrString(mod,"addToKillList"));//new value
 291   if(!meth)
 292     { Py_XDECREF(mod); return ; }
 293   PyObject *args(PyTuple_New(2));
 294   PyTuple_SetItem(args,0,PyInt_FromLong(getpid()));
 295   PyTuple_SetItem(args,1,PyString_FromString("SALOME_DataScopeServerBase"));
 296   PyObject *res(PyObject_CallObject(meth,args));
 297   Py_XDECREF(args);
 298   Py_XDECREF(res);
 299   Py_XDECREF(meth);
 300   Py_XDECREF(mod);
 301 }
 302
 303 void DataScopeServerBase::setPOA(PortableServer::POA_var poa)
 304 {
 305   _poa=poa;
 306 }
 307
 308 void DataScopeServerBase::registerInNS(SALOME::DataScopeServerBase_ptr ptr)
 309 {
 310   std::string fullScopeName(SALOMESDS::DataServerManager::CreateAbsNameInNSFromScopeName(_name));
 311   SALOME_NamingService ns(_orb);
 312   ns.Register(ptr,fullScopeName.c_str());
 313 }
 314
 315 std::string DataScopeServerBase::BuildTmpVarNameFrom(const std::string& varName)
 316 {
 317   std::ostringstream oss;
 318   oss << varName << "@" << COUNTER++;
 319   return oss.str();
 320 }
 321
 322 std::vector< std::string > DataScopeServerBase::getAllVarNames() const
 323 {
 324   std::size_t sz(_vars.size());
 325   std::vector<std::string> ret(sz);
 326   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it(_vars.begin());
 327   for(std::size_t i=0;i<sz;it++,i++)
 328     ret[i]=(*it).second->getVarNameCpp();
 329   return ret;
 330 }
 331
 332 void DataScopeServerBase::checkNotAlreadyExistingVar(const std::string& varName) const
 333 {
 334   std::vector<std::string> allNames(getAllVarNames());
 335   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varName));
 336   if(it!=allNames.end())
 337     {
 338       std::ostringstream oss; oss << "DataScopeServerBase::checkNotAlreadyExistingVar : name \"" << varName << "\" already exists !";
 339       throw Exception(oss.str());
 340     }
 341 }
 342
 343 void DataScopeServerBase::checkExistingVar(const std::string& varName) const
 344 {
 345   std::vector<std::string> allNames(getAllVarNames());
 346   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varName));
 347   if(it==allNames.end())
 348     {
 349       std::ostringstream oss; oss << "DataScopeServerBase::checkExistingVar : name \"" << varName << "\" does not exist !";
 350       throw Exception(oss.str());
 351     }
 352 }
 353
 354 PickelizedPyObjServer *DataScopeServerBase::checkVarExistingAndDict(const std::string& varName)
 355 {
 356   checkExistingVar(varName);
 357   BasicDataServer *var(retrieveVarInternal2(varName.c_str()));
 358   PickelizedPyObjServer *ret(dynamic_cast<PickelizedPyObjServer *>(var));
 359   if(!ret)
 360     {
 361       std::ostringstream oss; oss << "TransactionAddKeyValueHard::prepareRollBackInCaseOfFailure : var \"" << varName << "\"exists but it is not serialized !";
 362       throw Exception(oss.str());
 363     }
 364   if(!ret->isDict())
 365     {
 366       std::ostringstream oss; oss << "TransactionAddKeyValueHard::prepareRollBackInCaseOfFailure : var \"" << varName << "\"exists but it is not a Dict !";
 367       throw Exception(oss.str());
 368     }
 369   return ret;
 370 }
 371
 372 void DataScopeServerBase::moveStatusOfVarFromRdWrToRdOnly(const std::string& varName)
 373 {
 374   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(retrieveVarInternal4(varName));
 375   std::pair< SALOME::BasicDataServer_var, BasicDataServer * >& p(*it);
 376   PickelizedPyObjRdWrServer *varc(dynamic_cast<PickelizedPyObjRdWrServer *>(p.second));
 377   if(!varc)
 378     throw Exception("DataScopeServerBase::moveStatusOfVarFromRdWrToRdOnly : var is not a RdWr !");
 379   PyObject *pyobj(varc->getPyObj()); Py_XINCREF(pyobj);
 380   PickelizedPyObjRdOnlyServer *newVar(new PickelizedPyObjRdOnlyServer(this,varName,pyobj));
 381   CORBA::Object_var obj(newVar->activate());
 382   SALOME::BasicDataServer_var obj2(SALOME::BasicDataServer::_narrow(obj));
 383   p.first=obj2; p.second=newVar;
 384   varc->decrRef();
 385 }
 386
 387 void DataScopeServerBase::moveStatusOfVarFromRdOnlyToRdWr(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   PickelizedPyObjRdOnlyServer *varc(dynamic_cast<PickelizedPyObjRdOnlyServer *>(p.second));
 392   if(!varc)
 393     throw Exception("DataScopeServerBase::moveStatusOfVarFromRdOnlyToRdWr : var is not a RdWr !");
 394   PyObject *pyobj(varc->getPyObj()); Py_XINCREF(pyobj);
 395   PickelizedPyObjRdWrServer *newVar(new PickelizedPyObjRdWrServer(this,varName,pyobj));
 396   CORBA::Object_var obj(newVar->activate());
 397   SALOME::BasicDataServer_var obj2(SALOME::BasicDataServer::_narrow(obj));
 398   p.first=obj2; p.second=newVar;
 399   varc->decrRef();
 400 }
 401
 402 void DataScopeServerBase::moveStatusOfVarFromRdExtOrRdExtInitToRdExtInit(const std::string& varName)
 403 {
 404   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(retrieveVarInternal4(varName));
 405   std::pair< SALOME::BasicDataServer_var, BasicDataServer * >& p(*it);
 406   PickelizedPyObjRdExtServer *varc0(dynamic_cast<PickelizedPyObjRdExtServer *>(p.second));
 407   PickelizedPyObjRdExtInitServer *varc1(dynamic_cast<PickelizedPyObjRdExtInitServer *>(p.second));
 408   if(!varc0 && !varc1)
 409     throw Exception("DataScopeServerBase::moveStatusOfVarFromRdExtOrRdExtInitToRdExtInit : var is neither RdExt nor RdExtInit !");
 410   if(varc0)
 411     {
 412       PyObject *pyobj(varc0->getPyObj()); Py_XINCREF(pyobj);
 413       PickelizedPyObjRdExtInitServer *newVar(new PickelizedPyObjRdExtInitServer(this,varName,pyobj));
 414       newVar->incrNbClients();
 415       CORBA::Object_var obj(newVar->activate());
 416       SALOME::BasicDataServer_var obj2(SALOME::BasicDataServer::_narrow(obj));
 417       p.first=obj2; p.second=newVar;
 418       varc0->decrRef();
 419     }
 420   else
 421     varc1->incrNbClients();
 422 }
 423
 424 void DataScopeServerBase::moveStatusOfVarFromRdExtOrRdExtInitToRdExt(const std::string& varName)
 425 {
 426   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it(retrieveVarInternal4(varName));
 427   std::pair< SALOME::BasicDataServer_var, BasicDataServer * >& p(*it);
 428   PickelizedPyObjRdExtInitServer *varc0(dynamic_cast<PickelizedPyObjRdExtInitServer *>(p.second));
 429   PickelizedPyObjRdExtServer *varc1(dynamic_cast<PickelizedPyObjRdExtServer *>(p.second));
 430   if(!varc0 && !varc1)
 431     throw Exception("DataScopeServerBase::moveStatusOfVarFromRdExtOrRdExtInitToRdExt : var is not a RdExtInit !");
 432   if(varc0)
 433     {
 434       if(varc0->decrNbClients())
 435         {
 436           PyObject *pyobj(varc0->getPyObj()); Py_XINCREF(pyobj);
 437           PickelizedPyObjRdExtServer *newVar(new PickelizedPyObjRdExtServer(this,varName,pyobj));
 438           CORBA::Object_var obj(newVar->activate());
 439           SALOME::BasicDataServer_var obj2(SALOME::BasicDataServer::_narrow(obj));
 440           p.first=obj2; p.second=newVar;
 441           varc0->decrRef();
 442         }
 443     }
 444 }
 445
 446 std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator DataScopeServerBase::retrieveVarInternal3(const std::string& varName) const
 447 {
 448   std::vector<std::string> allNames(getAllVarNames());
 449   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varName));
 450   if(it==allNames.end())
 451     {
 452       std::ostringstream oss; oss << "DataScopeServerBase::retrieveVarInternal3 : name \"" << varName << "\" does not exists ! Possibilities are :";
 453       std::copy(allNames.begin(),allNames.end(),std::ostream_iterator<std::string>(oss,", "));
 454       throw Exception(oss.str());
 455     }
 456   std::size_t pos(std::distance(allNames.begin(),it));
 457   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::const_iterator it0(_vars.begin());
 458   for(std::size_t i=0;i<pos;i++,it0++);
 459   return it0;
 460 }
 461
 462 std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator DataScopeServerBase::retrieveVarInternal4(const std::string& varName)
 463 {
 464   std::vector<std::string> allNames(getAllVarNames());
 465   std::vector<std::string>::iterator it(std::find(allNames.begin(),allNames.end(),varName));
 466   if(it==allNames.end())
 467     {
 468       std::ostringstream oss; oss << "DataScopeServerBase::retrieveVarInternal4 : name \"" << varName << "\" does not exists ! Possibilities are :";
 469       std::copy(allNames.begin(),allNames.end(),std::ostream_iterator<std::string>(oss,", "));
 470       throw Exception(oss.str());
 471     }
 472   std::size_t pos(std::distance(allNames.begin(),it));
 473   std::list< std::pair< SALOME::BasicDataServer_var, BasicDataServer * > >::iterator it0(_vars.begin());
 474   for(std::size_t i=0;i<pos;i++,it0++);
 475   return it0;
 476 }
 477
 478 ///////
 479
 480 DataScopeServer::DataScopeServer(CORBA::ORB_ptr orb, SALOME::DataScopeKiller_var killer, const std::string& scopeName):DataScopeServerBase(orb,killer,scopeName)
 481 {
 482 }
 483
 484 DataScopeServer::DataScopeServer(const DataScopeServer& other):omniServant(other),ServantBase(other),DataScopeServerBase(other)
 485 {
 486 }
 487
 488 SALOME::PickelizedPyObjRdOnlyServer_ptr DataScopeServer::createRdOnlyVar(const char *varName, const SALOME::ByteVec& constValue)
 489 {
 490   std::string varNameCpp(varName);
 491   checkNotAlreadyExistingVar(varNameCpp);
 492   PickelizedPyObjRdOnlyServer *tmp(new PickelizedPyObjRdOnlyServer(this,varNameCpp,constValue));
 493   CORBA::Object_var ret(tmp->activate());
 494   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 495   _vars.push_back(p);
 496   return SALOME::PickelizedPyObjRdOnlyServer::_narrow(ret);
 497 }
 498
 499 SALOME::PickelizedPyObjRdExtServer_ptr DataScopeServer::createRdExtVar(const char *varName, const SALOME::ByteVec& constValue)
 500 {
 501   std::string varNameCpp(varName);
 502   checkNotAlreadyExistingVar(varNameCpp);
 503   PickelizedPyObjRdExtServer *tmp(new PickelizedPyObjRdExtServer(this,varNameCpp,constValue));
 504   CORBA::Object_var ret(tmp->activate());
 505   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 506   _vars.push_back(p);
 507   return SALOME::PickelizedPyObjRdExtServer::_narrow(ret);
 508 }
 509
 510 SALOME::PickelizedPyObjRdWrServer_ptr DataScopeServer::createRdWrVar(const char *typeName, const char *varName)
 511 {
 512   std::string varNameCpp(varName),typeNameCpp(typeName);
 513   checkNotAlreadyExistingVar(varNameCpp);
 514   PickelizedPyObjRdWrServer *tmp(new PickelizedPyObjRdWrServer(this,typeNameCpp,varNameCpp));
 515   CORBA::Object_var ret(tmp->activate());
 516   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 517   _vars.push_back(p);
 518   return SALOME::PickelizedPyObjRdWrServer::_narrow(ret);
 519 }
 520
 521 DataScopeServer::~DataScopeServer()
 522 {
 523 }
 524
 525 ////////
 526
 527 DataScopeServerTransaction::DataScopeServerTransaction(CORBA::ORB_ptr orb, SALOME::DataScopeKiller_var killer, const std::string& scopeName):DataScopeServerBase(orb,killer,scopeName)
 528 {
 529   CORBA::Object_var obj(_orb->resolve_initial_references("RootPOA"));
 530   PortableServer::POA_var poa(PortableServer::POA::_narrow(obj));
 531   //
 532   PortableServer::POAManager_var mgr(poa->the_POAManager());
 533   CORBA::PolicyList policies;
 534   policies.length(1);
 535   PortableServer::ThreadPolicy_var threadPol(poa->create_thread_policy(PortableServer::ORB_CTRL_MODEL));
 536   policies[0]=PortableServer::ThreadPolicy::_duplicate(threadPol);
 537   PortableServer::POA_var poa2(poa->create_POA("POAForWaiters",mgr,policies));
 538   threadPol->destroy();
 539   //
 540   _poa_for_key_waiter=poa2;
 541 }
 542
 543 DataScopeServerTransaction::DataScopeServerTransaction(const DataScopeServerTransaction& other):omniServant(other),ServantBase(other),DataScopeServerBase(other),_poa_for_key_waiter(other.getPOA4KeyWaiter())
 544 {
 545 }
 546
 547 char *DataScopeServerTransaction::getAccessOfVar(const char *varName)
 548 {
 549   std::string varNameCpp(varName);
 550   checkExistingVar(varNameCpp);
 551   BasicDataServer *var(retrieveVarInternal2(varName));
 552   if(!var)
 553     throw Exception("DataScopeServerTransaction::getAccessOfVar : variable is NULL !");
 554   PickelizedPyObjServer *varc(dynamic_cast<PickelizedPyObjServer *>(var));
 555   if(!varc)
 556     throw Exception("DataScopeServerTransaction::getAccessOfVar : variable is not of type PickelizedPyObjServer !");
 557   std::string ret(varc->getAccessStr());
 558   return CORBA::string_dup(ret.c_str());
 559 }
 560
 561 /*!
 562  * This method is here to retrieve atomically accessStr and picklization.
 563  */
 564 void DataScopeServerTransaction::fetchAndGetAccessOfVar(const char *varName, CORBA::String_out access, SALOME::ByteVec_out data)
 565 {
 566   access=getAccessOfVar(varName);
 567   data=fetchSerializedContent(varName);
 568 }
 569
 570 void DataScopeServerTransaction::createRdOnlyVarInternal(const std::string& varName, const SALOME::ByteVec& constValue)
 571 {
 572   checkNotAlreadyExistingVar(varName);
 573   PickelizedPyObjRdOnlyServer *tmp(new PickelizedPyObjRdOnlyServer(this,varName,constValue));
 574   CORBA::Object_var ret(tmp->activate());
 575   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 576   _vars.push_back(p);
 577 }
 578
 579 void DataScopeServerTransaction::createRdExtVarInternal(const std::string& varName, const SALOME::ByteVec& constValue)
 580 {
 581   checkNotAlreadyExistingVar(varName);
 582   PickelizedPyObjRdExtServer *tmp(new PickelizedPyObjRdExtServer(this,varName,constValue));
 583   CORBA::Object_var ret(tmp->activate());
 584   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 585   _vars.push_back(p);
 586 }
 587
 588 void DataScopeServerTransaction::createRdExtInitVarInternal(const std::string& varName, const SALOME::ByteVec& constValue)
 589 {
 590   checkNotAlreadyExistingVar(varName);
 591   PickelizedPyObjRdExtInitServer *tmp(new PickelizedPyObjRdExtInitServer(this,varName,constValue));
 592   CORBA::Object_var ret(tmp->activate());
 593   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 594   _vars.push_back(p);
 595 }
 596
 597 void DataScopeServerTransaction::createRdWrVarInternal(const std::string& varName, const SALOME::ByteVec& constValue)
 598 {
 599   checkNotAlreadyExistingVar(varName);
 600   PickelizedPyObjRdWrServer *tmp(new PickelizedPyObjRdWrServer(this,varName,constValue));
 601   CORBA::Object_var ret(tmp->activate());
 602   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(ret),tmp);
 603   _vars.push_back(p);
 604 }
 605
 606 SALOME::Transaction_ptr DataScopeServerTransaction::createRdOnlyVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 607 {
 608   checkNotAlreadyExistingVar(varName);
 609   TransactionRdOnlyVarCreate *ret(new TransactionRdOnlyVarCreate(this,varName,constValue));
 610   CORBA::Object_var obj(ret->activate());
 611   return SALOME::Transaction::_narrow(obj);
 612 }
 613
 614 SALOME::Transaction_ptr DataScopeServerTransaction::createRdExtVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 615 {
 616   checkNotAlreadyExistingVar(varName);
 617   TransactionRdExtVarCreate *ret(new TransactionRdExtVarCreate(this,varName,constValue));
 618   CORBA::Object_var obj(ret->activate());
 619   return SALOME::Transaction::_narrow(obj);
 620 }
 621
 622 SALOME::Transaction_ptr DataScopeServerTransaction::createRdExtInitVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 623 {
 624   checkNotAlreadyExistingVar(varName);
 625   TransactionRdExtInitVarCreate *ret(new TransactionRdExtInitVarCreate(this,varName,constValue));
 626   CORBA::Object_var obj(ret->activate());
 627   return SALOME::Transaction::_narrow(obj);
 628 }
 629
 630 SALOME::Transaction_ptr DataScopeServerTransaction::createRdWrVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 631 {
 632   checkNotAlreadyExistingVar(varName);
 633   TransactionRdWrVarCreate *ret(new TransactionRdWrVarCreate(this,varName,constValue));
 634   CORBA::Object_var obj(ret->activate());
 635   return SALOME::Transaction::_narrow(obj);
 636 }
 637
 638 void DataScopeServerTransaction::addWaitKey(KeyWaiter *kw)
 639 {
 640   if(!kw)
 641     throw Exception("DataScopeServerTransaction::addWaitKey : NULL input object !");
 642   _waiting_keys.push_back(kw);
 643 }
 644
 645 void DataScopeServerTransaction::pingKey(PyObject *keyObj)
 646 {
 647   PyObject *cmpObj(getPyCmpFunc());
 648   if(!keyObj)
 649     throw Exception("ataScopeServerTransaction::pingKey : Key Object is NULL !");
 650   PyObject *args(PyTuple_New(2));
 651   PyTuple_SetItem(args,0,keyObj); Py_XINCREF(keyObj);
 652   std::size_t ii(0);
 653   // this part does nothing except to be sure that in notify key all will be OK.
 654   for(std::list< KeyWaiter *>::iterator it=_waiting_keys.begin();it!=_waiting_keys.end();it++,ii++)
 655     {
 656       PyObject *waitKey((*it)->getKeyPyObj());
 657       PyTuple_SetItem(args,1,waitKey); Py_XINCREF(waitKey);
 658       PyObject *res(PyObject_CallObject(cmpObj,args));
 659       if(res==NULL)
 660         {
 661           std::ostringstream oss; oss << "DataScopeServerTransaction::pingKey : for object id #" << ii << " error during cmp(k,wk[i]) !";
 662           throw Exception(oss.str());
 663         }
 664       PyInt_AsLong(res);
 665       if(PyErr_Occurred())
 666         {
 667           std::ostringstream oss; oss << "DataScopeServerTransaction::pingKey : for object id #" << ii << " error during interpretation of cmp(k,wk[i]) !";
 668           throw Exception(oss.str());
 669         }
 670       Py_XDECREF(res);
 671     }
 672 }
 673
 674 void DataScopeServerTransaction::notifyKey(const std::string& varName, PyObject *keyObj, PyObject *valueObj)
 675 {
 676   PyObject *cmpObj(getPyCmpFunc());
 677   if(!keyObj)
 678     throw Exception("DataScopeServerTransaction::notifyKey : MAIN INTERNAL ERROR ! Key Object is NULL !");
 679   PyObject *args(PyTuple_New(2));
 680   PyTuple_SetItem(args,0,keyObj); Py_XINCREF(keyObj);
 681   std::size_t ii(0);
 682   std::list< KeyWaiter *> newList,listOfEltToWakeUp;
 683   for(std::list< KeyWaiter *>::iterator it=_waiting_keys.begin();it!=_waiting_keys.end();it++,ii++)
 684     {
 685       if((*it)->getVarName()!=varName)
 686         {
 687           newList.push_back(*it);
 688           continue;
 689         }
 690       PyObject *waitKey((*it)->getKeyPyObj());
 691       PyTuple_SetItem(args,1,waitKey); Py_XINCREF(waitKey);
 692       PyObject *res(PyObject_CallObject(cmpObj,args));
 693       if(res==NULL)
 694         {
 695           std::ostringstream oss; oss << "DataScopeServerTransaction::notifyKey : MAIN INTERNAL ERROR ! for object id #" << ii << " error during cmp(k,wk[i]) !";
 696           throw Exception(oss.str());
 697         }
 698       long resCpp(PyInt_AsLong(res));
 699       if(PyErr_Occurred())
 700         {
 701           std::ostringstream oss; oss << "DataScopeServerTransaction::notifyKey : MAIN INTERNAL ERROR ! for object id #" << ii << " error during interpretation of cmp(k,wk[i]) !";
 702           throw Exception(oss.str());
 703         }
 704       Py_XDECREF(res);
 705       if(resCpp==0)
 706         listOfEltToWakeUp.push_back(*it);
 707       else
 708         newList.push_back(*it);
 709     }
 710   for(std::list< KeyWaiter *>::iterator it=listOfEltToWakeUp.begin();it!=listOfEltToWakeUp.end();it++)
 711     (*it)->valueJustCome(valueObj);
 712   for(std::list< KeyWaiter *>::iterator it=listOfEltToWakeUp.begin();it!=listOfEltToWakeUp.end();it++)
 713     (*it)->go();
 714   _waiting_keys=newList;
 715 }
 716
 717 SALOME::Transaction_ptr DataScopeServerTransaction::addKeyValueInVarHard(const char *varName, const SALOME::ByteVec& key, const SALOME::ByteVec& value)
 718 {
 719   checkVarExistingAndDict(varName);
 720   TransactionAddKeyValueHard *ret(new TransactionAddKeyValueHard(this,varName,key,value));
 721   CORBA::Object_var obj(ret->activate());
 722   return SALOME::Transaction::_narrow(obj);
 723 }
 724
 725 SALOME::Transaction_ptr DataScopeServerTransaction::addKeyValueInVarErrorIfAlreadyExisting(const char *varName, const SALOME::ByteVec& key, const SALOME::ByteVec& value)
 726 {
 727   checkVarExistingAndDict(varName);
 728   TransactionAddKeyValueErrorIfAlreadyExisting *ret(new TransactionAddKeyValueErrorIfAlreadyExisting(this,varName,key,value));
 729   CORBA::Object_var obj(ret->activate());
 730   return SALOME::Transaction::_narrow(obj);
 731 }
 732
 733 SALOME::TransactionMultiKeyAddSession_ptr DataScopeServerTransaction::addMultiKeyValueSession(const char *varName)
 734 {
 735   checkVarExistingAndDict(varName);
 736   TransactionMultiKeyAddSession *ret(new TransactionMultiKeyAddSession(this,varName));
 737   CORBA::Object_var obj(ret->activate());
 738   return SALOME::TransactionMultiKeyAddSession::_narrow(obj);
 739 }
 740
 741 SALOME::Transaction_ptr DataScopeServerTransaction::removeKeyInVarErrorIfNotAlreadyExisting(const char *varName, const SALOME::ByteVec& key)
 742 {
 743   checkVarExistingAndDict(varName);
 744   TransactionRemoveKeyInVarErrorIfNotAlreadyExisting *ret(new TransactionRemoveKeyInVarErrorIfNotAlreadyExisting(this,varName,key));
 745   CORBA::Object_var obj(ret->activate());
 746   return SALOME::Transaction::_narrow(obj);
 747 }
 748
 749 SALOME::TransactionRdWrAccess_ptr DataScopeServerTransaction::createWorkingVarTransac(const char *varName, const SALOME::ByteVec& constValue)
 750 {
 751   std::string varNameCpp(varName);
 752   checkNotAlreadyExistingVar(varName);
 753   PickelizedPyObjRdWrServer *tmp(new PickelizedPyObjRdWrServer(this,varNameCpp,constValue));
 754   CORBA::Object_var obj(tmp->activate());
 755   std::pair< SALOME::BasicDataServer_var, BasicDataServer * > p(SALOME::BasicDataServer::_narrow(obj),tmp);
 756   _vars.push_back(p);
 757   //
 758   TransactionMorphRdWrIntoRdOnly *ret(new TransactionMorphRdWrIntoRdOnly(this,varName));
 759   CORBA::Object_var obj2(ret->activate());
 760   return SALOME::TransactionRdWrAccess::_narrow(obj2);
 761 }
 762
 763 SALOME::Transaction_ptr DataScopeServerTransaction::killVarTransac(const char *varName)
 764 {
 765   std::string varNameCpp(varName);
 766   checkExistingVar(varNameCpp);
 767   //
 768   TransactionKillVar *ret(new TransactionKillVar(this,varName));
 769   CORBA::Object_var obj2(ret->activate());
 770   return SALOME::Transaction::_narrow(obj2);
 771 }
 772
 773 SALOME::KeyWaiter_ptr DataScopeServerTransaction::waitForKeyInVar(const char *varName, const SALOME::ByteVec& keyVal)
 774 {
 775   PickelizedPyObjServer *pickelObj(checkVarExistingAndDict(varName));
 776   KeyWaiter *ret(new KeyWaiter(pickelObj,keyVal));
 777   CORBA::Object_var obj(ret->activate());//KeyWaiter instance activated inside a multithread POA contrary to all of objects in SALOMESDS in single thread !
 778   return SALOME::KeyWaiter::_narrow(obj);
 779 }
 780
 781 SALOME::KeyWaiter_ptr DataScopeServerTransaction::waitForKeyInVarAndKillIt(const char *varName, const SALOME::ByteVec& keyVal, SALOME::Transaction_out transac)
 782 {
 783   PickelizedPyObjServer *pickelObj(checkVarExistingAndDict(varName));
 784   KeyWaiter *ret0(new KeyWaiter(pickelObj,keyVal));
 785   CORBA::Object_var obj(ret0->activate());//KeyWaiter instance activated inside a multithread POA contrary to all of objects in SALOMESDS in single thread !
 786   //
 787   TransactionRemoveKeyInVarErrorIfNotAlreadyExisting *ret1(new TransactionRemoveKeyInVarErrorIfNotAlreadyExisting(this,varName,keyVal));
 788   CORBA::Object_var obj2(ret1->activate());
 789   transac=SALOME::Transaction::_narrow(obj2);
 790   //
 791   return SALOME::KeyWaiter::_narrow(obj);
 792 }
 793
 794 SALOME::ByteVec *DataScopeServerTransaction::waitForMonoThrRev(SALOME::KeyWaiter_ptr kw)
 795 {
 796   PortableServer::ServantBase *ret(0);
 797   try
 798     {
 799       ret=_poa_for_key_waiter->reference_to_servant(kw);// Warning ref cnt of ret has been incremented !
 800     }
 801   catch(...) { ret=0; }
 802   KeyWaiter *retc(dynamic_cast<KeyWaiter *>(ret));
 803   if(!retc)
 804     throw Exception("DataScopeServerTransaction::invokeMonoThr : internal error 1 !");
 805   retc->_remove_ref();// restore the counter after _poa_for_key_waiter->reference_to_servant(kw)
 806   SALOME::ByteVec *zeRet(retc->waitForMonoThr());
 807   retc->enforcedRelease();
 808   return zeRet;
 809 }
 810
 811 SALOME::ByteVec *DataScopeServerTransaction::waitForAndKill(SALOME::KeyWaiter_ptr kw)
 812 {
 813   PortableServer::ServantBase *ret(0);
 814   try
 815     {
 816       ret=_poa_for_key_waiter->reference_to_servant(kw);// Warning ref cnt of ret has been incremented !
 817     }
 818   catch(...) { ret=0; }
 819   KeyWaiter *retc(dynamic_cast<KeyWaiter *>(ret));
 820   if(!retc)
 821     throw Exception("DataScopeServerTransaction::invokeMonoThr : internal error 1 !");
 822   retc->_remove_ref();// restore the counter after _poa_for_key_waiter->reference_to_servant(kw)
 823   SALOME::ByteVec *zeRet(retc->waitForAndKill());
 824   retc->enforcedRelease();
 825   return zeRet;
 826 }
 827
 828 void DataScopeServerTransaction::atomicApply(const SALOME::ListOfTransaction& transactions)
 829 {
 830   std::size_t sz(transactions.length());
 831   if(sz==0)
 832     return ;
 833   std::vector< AutoServantPtr<Transaction> > transactionsCpp(sz);
 834   for(std::size_t i=0;i<sz;i++)
 835     {
 836       PortableServer::ServantBase *eltBase(0);
 837       Transaction *elt(0);
 838       try
 839         {
 840           eltBase=_poa->reference_to_servant(transactions[i]);
 841           elt=dynamic_cast<Transaction *>(eltBase);
 842         }
 843       catch(...)
 844         {
 845           std::ostringstream oss; oss << "DataScopeServerTransaction::atomicApply : the elt #" << i << " is invalid !";
 846           throw Exception(oss.str());
 847         }
 848       if(!elt)
 849         {
 850           std::ostringstream oss; oss << "DataScopeServerTransaction::atomicApply : the elt #" << i << " is null ?";
 851           throw Exception(oss.str());
 852         }
 853       elt->_remove_ref();
 854       transactionsCpp[i]=elt;
 855     }
 856   {// important do not merge loops !
 857     std::vector<TrustTransaction> transactions2(sz);
 858     bool mustRollback(true);
 859     for(std::size_t i=0;i<sz;i++)
 860       transactions2[i].setTransaction(transactionsCpp[i],&mustRollback);
 861     for(std::size_t i=0;i<sz;i++)
 862       transactions2[i].operate();
 863     mustRollback=false;
 864   }
 865   for(std::size_t i=0;i<sz;i++)
 866     transactionsCpp[i]->notify();
 867 }
 868
 869 /*!
 870  * Returns borrowed reference.
 871  */
 872 PyObject *DataScopeServerTransaction::getPyCmpFunc()
 873 {
 874   PyObject *builtins(PyDict_GetItemString(_globals,"__builtins__"));//borrowed
 875   if(builtins==NULL)
 876     throw Exception("Fail to find reference to builtins !");
 877   PyObject *builtins2(PyModule_GetDict(builtins));//borrowed
 878   if(builtins2==NULL)
 879     throw Exception("Fail to invoke __dict__ on builtins !");
 880   PyObject *cmpObj(PyDict_GetItemString(builtins2,"cmp"));
 881   if(cmpObj==NULL)
 882     throw Exception("Fail to find cmp in __builtins__ !");
 883   return cmpObj;
 884 }
 885
 886 DataScopeServerTransaction::~DataScopeServerTransaction()
 887 {
 888 }
 889
 890 SALOME::RequestSwitcher_ptr DataScopeServerTransaction::getRequestSwitcher()
 891 {
 892   if(_rs.isNull())
 893     {
 894       _rs=new RequestSwitcher(_orb,this);
 895     }
 896   CORBA::Object_var obj(_rs->activate());
 897   return SALOME::RequestSwitcher::_narrow(obj);
 898 }