1 // Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // SALOME Container : implementation of container and engine for Kernel
24 // File : Container_i.cxx
25 // Author : Paul RASCLE, EDF - MARC TAJCHMAN, CEA
28 //#define private public
33 #include <sys/types.h>
46 #include "utilities.h"
47 #include <SALOMEconfig.h>
48 #include CORBA_SERVER_HEADER(SALOME_Component)
49 #include CORBA_SERVER_HEADER(SALOME_Exception)
50 #include <pthread.h> // must be before Python.h !
51 #include "SALOME_Container_i.hxx"
52 #include "SALOME_Component_i.hxx"
53 #include "SALOME_FileRef_i.hxx"
54 #include "SALOME_FileTransfer_i.hxx"
55 #include "Salome_file_i.hxx"
56 #include "SALOME_NamingService.hxx"
57 #include "Basics_Utils.hxx"
64 #include "Container_init_python.hxx"
66 bool _Sleeping = false ;
68 // // Needed by multi-threaded Python --- Supervision
72 extern "C" {void ActSigIntHandler() ; }
74 extern "C" {void SigIntHandler(int, siginfo_t *, void *) ; }
76 extern "C" {void SigIntHandler( int ) ; }
82 #define ENGINESO "Engine.dylib"
84 #define ENGINESO "Engine.so"
88 #define ENGINESO "Engine.dll"
99 std::map<std::string, int> Engines_Container_i::_cntInstances_map;
100 std::map<std::string, void *> Engines_Container_i::_library_map;
101 std::map<std::string, void *> Engines_Container_i::_toRemove_map;
102 omni_mutex Engines_Container_i::_numInstanceMutex ;
104 static PyObject* _pyCont;
106 int checkifexecutable(const std::string&);
107 int findpathof(const std::string& path, std::string&, const std::string&);
109 /*! \class Engines_Container_i
110 * \brief C++ implementation of Engines::Container interface
115 //=============================================================================
117 * Default constructor, not for use
119 //=============================================================================
121 Engines_Container_i::Engines_Container_i () :
122 _numInstance(0),_id(0),_NS(0)
126 //=============================================================================
130 //=============================================================================
132 Engines_Container_i::Engines_Container_i (CORBA::ORB_ptr orb,
133 PortableServer::POA_ptr poa,
134 char *containerName ,
135 int argc , char* argv[],
137 bool isServantAloneInProcess
139 _numInstance(0),_isServantAloneInProcess(isServantAloneInProcess),_id(0),_NS(0)
141 _pid = (long)getpid();
149 std::string hostname = Kernel_Utils::GetHostname();
151 MESSAGE(hostname << " " << getpid() <<
152 " Engines_Container_i starting argc " <<
153 _argc << " Thread " << pthread_self() ) ;
155 MESSAGE(hostname << " " << _getpid() <<
156 " Engines_Container_i starting argc " << _argc<< " Thread " << pthread_self().p ) ;
162 MESSAGE(" argv" << i << " " << _argv[ i ]) ;
168 INFOS("SALOME_Container usage : SALOME_Container ServerName");
172 _isSupervContainer = false;
174 _orb = CORBA::ORB::_duplicate(orb) ;
175 _poa = PortableServer::POA::_duplicate(poa) ;
177 // Pour les containers paralleles: il ne faut pas enregistrer et activer
178 // le container generique, mais le container specialise
182 _id = _poa->activate_object(this);
183 _NS = new SALOME_NamingService();
184 _NS->init_orb( _orb ) ;
185 CORBA::Object_var obj=_poa->id_to_reference(*_id);
186 Engines::Container_var pCont
187 = Engines::Container::_narrow(obj);
190 _containerName = _NS->BuildContainerNameForNS(containerName,
192 SCRUTE(_containerName);
193 _NS->Register(pCont, _containerName.c_str());
194 MESSAGE("Engines_Container_i::Engines_Container_i : Container name "
198 // import SALOME_Container
199 // pycont = SALOME_Container.SALOME_Container_i(containerIORStr)
201 CORBA::String_var sior = _orb->object_to_string(pCont);
202 std::string myCommand="pyCont = SALOME_Container.SALOME_Container_i('";
203 myCommand += _containerName + "','";
208 //[RNV]: Comment the PyEval_AcquireLock() and PyEval_ReleaseLock() because this
209 //approach leads to the deadlock of the main thread of the application on Windows platform
210 //in case if cppContainer runs in the standalone mode. The problem with the PyThreadState
211 //described by ABN seems not reproduced, to be checked carefully later...
212 PyGILState_STATE gstate = PyGILState_Ensure();
214 //// [ABN]: using the PyGILState* API here is unstable. omniORB logic is invoked
215 //// by the Python code executed below, and in some (random) cases, the Python code
216 //// execution ends with a PyThreadState which was not the one we have here.
217 //// (TODO: understand why ...)
218 //// To be on the safe side we get and load the thread state ourselves:
219 //PyEval_AcquireLock(); // get GIL
220 //PyThreadState * mainThreadState = PyThreadState_Get();
221 //PyThreadState_Swap(mainThreadState);
224 // mpv: this is temporary solution: there is a unregular crash if not
227 // first element is the path to Registry.dll, but it's wrong
228 PyRun_SimpleString("import sys\n");
229 PyRun_SimpleString("sys.path = sys.path[1:]\n");
231 PyRun_SimpleString("import SALOME_Container\n");
232 PyRun_SimpleString((char*)myCommand.c_str());
233 PyObject *mainmod = PyImport_AddModule("__main__");
234 PyObject *globals = PyModule_GetDict(mainmod);
235 _pyCont = PyDict_GetItemString(globals, "pyCont");
237 //PyThreadState_Swap(NULL);
238 //PyEval_ReleaseLock();
239 PyGILState_Release(gstate);
241 fileTransfer_i* aFileTransfer = new fileTransfer_i();
242 CORBA::Object_var obref=aFileTransfer->_this();
243 _fileTransfer = Engines::fileTransfer::_narrow(obref);
244 aFileTransfer->_remove_ref();
248 //=============================================================================
252 //=============================================================================
254 Engines_Container_i::~Engines_Container_i()
256 MESSAGE("Container_i::~Container_i()");
261 for(std::map<std::string,Engines::PyNode_var>::iterator it=_dftPyNode.begin();it!=_dftPyNode.end();it++)
263 Engines::PyNode_var tmpVar((*it).second);
264 if(!CORBA::is_nil(tmpVar))
265 tmpVar->UnRegister();
267 for(std::map<std::string,Engines::PyScriptNode_var>::iterator it=_dftPyScriptNode.begin();it!=_dftPyScriptNode.end();it++)
269 Engines::PyScriptNode_var tmpVar((*it).second);
270 if(!CORBA::is_nil(tmpVar))
271 tmpVar->UnRegister();
275 //=============================================================================
276 //! Get container name
278 * CORBA attribute: Container name (see constructor)
280 //=============================================================================
282 char* Engines_Container_i::name()
284 return CORBA::string_dup(_containerName.c_str()) ;
287 //=============================================================================
288 //! Get container working directory
290 * CORBA attribute: Container working directory
292 //=============================================================================
294 char* Engines_Container_i::workingdir()
298 return CORBA::string_dup(wd) ;
301 //=============================================================================
302 //! Get container log file name
304 * CORBA attribute: Container log file name
306 //=============================================================================
308 char* Engines_Container_i::logfilename()
310 return CORBA::string_dup(_logfilename.c_str()) ;
313 //! Set container log file name
314 void Engines_Container_i::logfilename(const char* name)
319 //=============================================================================
320 //! Get container host name
322 * CORBA method: Get the hostName of the Container (without domain extensions)
324 //=============================================================================
326 char* Engines_Container_i::getHostName()
328 std::string s = Kernel_Utils::GetHostname();
329 // MESSAGE("Engines_Container_i::getHostName " << s);
330 return CORBA::string_dup(s.c_str()) ;
333 //=============================================================================
334 //! Get container PID
336 * CORBA method: Get the PID (process identification) of the Container
338 //=============================================================================
340 CORBA::Long Engines_Container_i::getPID()
342 return (CORBA::Long)getpid();
345 //=============================================================================
346 //! Ping the servant to check it is still alive
348 * CORBA method: check if servant is still alive
350 //=============================================================================
351 void Engines_Container_i::ping()
353 MESSAGE("Engines_Container_i::ping() pid "<< getpid());
356 //=============================================================================
357 //! Shutdown the container
359 * CORBA method, oneway: Server shutdown.
360 * - Container name removed from naming service,
361 * - servant deactivation,
362 * - orb shutdown if no other servants in the process
364 //=============================================================================
365 void Engines_Container_i::Shutdown()
367 MESSAGE("Engines_Container_i::Shutdown()");
369 // Clear registered temporary files
370 clearTemporaryFiles();
372 /* For each component contained in this container
373 * tell it to self-destroy
375 std::map<std::string, Engines::EngineComponent_var>::iterator itm;
376 for (itm = _listInstances_map.begin(); itm != _listInstances_map.end(); itm++)
380 itm->second->destroy();
382 catch(const CORBA::Exception& e)
384 // ignore this entry and continue
388 // ignore this entry and continue
391 _listInstances_map.clear();
393 _NS->Destroy_FullDirectory(_containerName.c_str());
394 _NS->Destroy_Name(_containerName.c_str());
395 if(_isServantAloneInProcess)
397 MESSAGE("Effective Shutdown of container Begins...");
398 if(!CORBA::is_nil(_orb))
403 //=============================================================================
404 //! load a component implementation
407 * \param componentName component name
408 * \param reason explains error when load fails
409 * \return true if dlopen successful or already done, false otherwise
411 //=============================================================================
413 Engines_Container_i::load_component_Library(const char* componentName, CORBA::String_out reason)
416 //=================================================================
417 // --- C++ implementation section
418 //=================================================================
420 if(load_component_CppImplementation(componentName,retso))
422 reason=CORBA::string_dup("");
425 else if(retso != "ImplementationNotFound")
427 reason=CORBA::string_dup(retso.c_str());
432 retso+=componentName;
433 retso+=": Can't find C++ implementation ";
434 retso+=std::string(LIB) + componentName + ENGINESO;
436 //=================================================================
437 // --- Python implementation section
438 //=================================================================
440 if(load_component_PythonImplementation(componentName,retpy))
442 reason=CORBA::string_dup("");
445 else if(retpy != "ImplementationNotFound")
447 reason=CORBA::string_dup(retpy.c_str());
452 retpy+=componentName;
453 retpy+=": Can't find python implementation ";
454 retpy+=componentName;
457 //=================================================================
458 // -- Executable implementation section
459 //=================================================================
461 if(load_component_ExecutableImplementation(componentName,retex))
463 reason=CORBA::string_dup("");
466 else if(retex != "ImplementationNotFound")
468 reason=CORBA::string_dup(retex.c_str());
473 retex+=componentName;
474 retex+=": Can't find executable implementation ";
475 retex+=componentName;
478 std::string ret="Component implementation not found: ";
479 ret += componentName ;
485 std::cerr << ret << std::endl;
486 reason=CORBA::string_dup(ret.c_str());
491 //=============================================================================
492 //! try to load a C++ component implementation
495 * \param componentName the name of the component (COMPONENT, for example)
496 * \param reason explains error when load fails
497 * \return true if loading is successful or already done, false otherwise
499 //=============================================================================
501 Engines_Container_i::load_component_CppImplementation(const char* componentName, std::string& reason)
503 std::string aCompName(componentName);
504 std::string impl_name = std::string(LIB) + aCompName + ENGINESO;
507 _numInstanceMutex.lock(); // lock to be alone
508 // (see decInstanceCnt, finalize_removal))
509 if (_toRemove_map.count(impl_name) != 0) _toRemove_map.erase(impl_name);
510 if (_library_map.count(impl_name) != 0)
512 MESSAGE("Library " << impl_name << " already loaded");
513 _numInstanceMutex.unlock();
517 _numInstanceMutex.unlock();
521 handle = dlopen( impl_name.c_str() , RTLD_NOW | RTLD_GLOBAL ) ;
524 //not loadable. Try to find the lib file in LD_LIBRARY_PATH
527 char* p=getenv("DYLD_LIBRARY_PATH");
529 char* p=getenv("LD_LIBRARY_PATH");
532 path=path+SEP+"/usr/lib"+SEP+"/lib";
535 if(findpathof(path, pth, impl_name))
537 //found but not loadable
540 reason+=": C++ implementation found ";
542 reason+=" but it is not loadable. Error:\n";
544 std::cerr << reason << std::endl;
550 //continue with other implementation
551 reason="ImplementationNotFound";
557 handle = LoadLibrary( impl_name.c_str() );
560 reason="ImplementationNotFound";
566 _numInstanceMutex.lock();
567 _library_map[impl_name] = handle;
568 _numInstanceMutex.unlock();
576 //=============================================================================
577 //! try to load a Python component implementation
580 * \param componentName name of the component
581 * \param reason explains error when load fails
582 * \return true if loading is successful or already done, false otherwise
584 //=============================================================================
586 Engines_Container_i::load_component_PythonImplementation(const char* componentName, std::string& reason)
588 std::string aCompName(componentName);
590 _numInstanceMutex.lock() ; // lock to be alone (stl container write)
591 if (_library_map.count(aCompName) != 0)
593 _numInstanceMutex.unlock() ;
595 return true; // Python Component, already imported
597 _numInstanceMutex.unlock() ;
599 PyGILState_STATE gstate = PyGILState_Ensure();
600 PyObject *result = PyObject_CallMethod(_pyCont,
601 (char*)"import_component",
602 (char*)"s",componentName);
604 reason=PyString_AsString(result);
607 PyGILState_Release(gstate);
611 //Python component has been loaded (import componentName)
612 _numInstanceMutex.lock() ; // lock to be alone (stl container write)
613 _library_map[aCompName] = (void *)_pyCont; // any non O value OK
614 _numInstanceMutex.unlock() ;
615 MESSAGE("import Python: "<< aCompName <<" OK");
618 else if(reason=="ImplementationNotFound")
620 //Python implementation has not been found. Continue with other implementation
621 reason="ImplementationNotFound";
625 //Python implementation has been found but loading has failed
626 std::cerr << reason << std::endl;
631 //=============================================================================
632 //! try to load a Executable component implementation
635 * \param componentName name of the component
636 * \param reason explains error when load fails
637 * \return true if loading is successful or already done, false otherwise
639 //=============================================================================
641 Engines_Container_i::load_component_ExecutableImplementation(const char* componentName, std::string& reason)
643 std::string aCompName(componentName);
644 std::string executable=aCompName+".exe";
649 char* p=getenv("PATH");
652 if (findpathof(path, pth, executable))
654 if(checkifexecutable(pth))
656 _numInstanceMutex.lock() ; // lock to be alone (stl container write)
657 _library_map[executable] = (void *)1; // any non O value OK
658 _numInstanceMutex.unlock() ;
659 MESSAGE("import executable: "<< pth <<" OK");
665 reason+=": implementation found ";
667 reason+=" but it is not executable";
668 std::cerr << reason << std::endl;
672 reason="ImplementationNotFound";
677 //=============================================================================
678 //! Create a new component instance
680 * CORBA method: Creates a new servant instance of a component.
681 * The servant registers itself to naming service and Registry.
682 * \param genericRegisterName Name of the component instance to register
683 * in Registry & Name Service (without _inst_n suffix)
684 * \param studyId 0 for multiStudy instance,
685 * study Id (>0) otherwise
686 * \return a loaded component
688 //=============================================================================
689 Engines::EngineComponent_ptr
690 Engines_Container_i::create_component_instance(const char*genericRegisterName,
693 Engines::FieldsDict_var env = new Engines::FieldsDict;
695 Engines::EngineComponent_ptr compo =
696 create_component_instance_env(genericRegisterName, studyId, env, reason);
697 CORBA::string_free(reason);
701 //=============================================================================
702 //! Create a new component instance with environment variables specified
704 * CORBA method: Creates a new servant instance of a component.
705 * The servant registers itself to naming service and Registry.
706 * \param genericRegisterName Name of the component instance to register
707 * in Registry & Name Service (without _inst_n suffix)
708 * \param studyId 0 for multiStudy instance,
709 * study Id (>0) otherwise
710 * \param env dict of env variables
711 * \param reason explains error when create_component_instance_env fails
712 * \return a loaded component
714 //=============================================================================
715 Engines::EngineComponent_ptr
716 Engines_Container_i::create_component_instance_env(const char*genericRegisterName,
718 const Engines::FieldsDict& env,
719 CORBA::String_out reason)
723 INFOS("studyId must be > 0 for mono study instance, =0 for multiStudy");
724 reason=CORBA::string_dup("studyId must be > 0 for mono study instance, =0 for multiStudy");
725 return Engines::EngineComponent::_nil() ;
729 if (_library_map.count(genericRegisterName) != 0)
731 // It's a Python component
732 Engines::EngineComponent_ptr compo = createPythonInstance(genericRegisterName, studyId, error);
733 reason=CORBA::string_dup(error.c_str());
737 std::string impl_name = std::string(LIB) + genericRegisterName + ENGINESO;
738 if (_library_map.count(impl_name) != 0)
740 // It's a C++ component
741 void* handle = _library_map[impl_name];
742 Engines::EngineComponent_ptr compo = createInstance(genericRegisterName, handle, studyId, error);
743 reason=CORBA::string_dup(error.c_str());
747 impl_name = std::string(genericRegisterName) + ".exe";
748 if (_library_map.count(impl_name) != 0)
750 //It's an executable component
751 Engines::EngineComponent_ptr compo = createExecutableInstance(genericRegisterName, studyId, env, error);
752 reason=CORBA::string_dup(error.c_str());
756 error="load_component_Library has probably not been called for component: ";
757 error += genericRegisterName;
759 reason=CORBA::string_dup(error.c_str());
760 return Engines::EngineComponent::_nil() ;
763 //=============================================================================
764 //! Create a new component instance (Executable implementation)
766 * \param CompName Name of the component instance
767 * \param studyId 0 for multiStudy instance,
768 * study Id (>0) otherwise
769 * \param env dict of env variables
770 * \param reason explains error when creation fails
771 * \return a loaded component
773 * This component is implemented in an executable with name genericRegisterName.exe
774 * It must register itself in Naming Service. The container waits some time (10 s max)
777 //=============================================================================
778 Engines::EngineComponent_ptr
779 Engines_Container_i::createExecutableInstance(std::string CompName, int studyId,
780 const Engines::FieldsDict& env,
783 Engines::EngineComponent_var iobject = Engines::EngineComponent::_nil() ;
785 _numInstanceMutex.lock() ; // lock on the instance number
787 int numInstance = _numInstance ;
788 _numInstanceMutex.unlock() ;
791 sprintf( aNumI , "%d" , numInstance ) ;
792 std::string instanceName = CompName + "_inst_" + aNumI ;
793 std::string component_registerName = _containerName + "/" + instanceName;
795 //check if an entry exist in naming service
796 CORBA::Object_var nsobj = _NS->Resolve(component_registerName.c_str());
797 if ( !CORBA::is_nil(nsobj) )
799 // unregister the registered component
800 _NS->Destroy_Name(component_registerName.c_str());
801 //kill or shutdown it ???
804 // first arg container ior string
805 // second arg container name
806 // third arg instance name
808 Engines::Container_var pCont= _this();
809 CORBA::String_var sior = _orb->object_to_string(pCont);
813 command+=instanceName;
815 command+=instanceName;
820 command+= sior; // container ior string
822 command+=_containerName; //container name
824 command+=instanceName; //instance name
826 MESSAGE("SALOME_Container::create_component_instance command=" << command);
829 // use fork/execl instead of system to get finer control on env variables
832 if(pid == 0) // child
834 for (CORBA::ULong i=0; i < env.length(); i++)
836 if (env[i].value.type()->kind() == CORBA::tk_string)
839 env[i].value >>= value;
840 std::string s(env[i].key);
843 putenv(strdup(s.c_str()));
847 execl("/bin/sh", "sh", "-c", command.c_str() , (char *)0);
850 else if(pid < 0) // failed to fork
859 tpid = wait(&status);
860 } while (tpid != pid);
863 // launch component with a system call
864 int status=system(command.c_str());
869 reason="SALOME_Container::create_component_instance system failed (system command status -1)";
871 return Engines::EngineComponent::_nil();
874 else if (WEXITSTATUS(status) == 217)
876 reason="SALOME_Container::create_component_instance system failed (system command status 217)";
878 return Engines::EngineComponent::_nil();
884 if (getenv("TIMEOUT_TO_WAIT_EXE_COMPONENT") != 0)
886 std::string new_count_str = getenv("TIMEOUT_TO_WAIT_EXE_COMPONENT");
888 std::istringstream ss(new_count_str);
889 if (!(ss >> new_count))
891 INFOS("[Container] TIMEOUT_TO_WAIT_EXE_COMPONENT should be an int");
896 INFOS("[Container] waiting " << count << " second steps exe component ");
897 CORBA::Object_var obj = CORBA::Object::_nil() ;
898 while ( CORBA::is_nil(obj) && count )
906 MESSAGE( count << ". Waiting for component " << CompName);
907 obj = _NS->Resolve(component_registerName.c_str());
910 if(CORBA::is_nil(obj))
912 reason="SALOME_Container::create_component_instance failed";
914 return Engines::EngineComponent::_nil();
918 MESSAGE("SALOME_Container::create_component_instance successful");
919 iobject = Engines::EngineComponent::_narrow(obj);
920 _listInstances_map[instanceName] = iobject;
921 return iobject._retn();
927 //=============================================================================
928 //! Create a new component instance (Python implementation)
930 * \param CompName Name of the component instance
931 * \param studyId 0 for multiStudy instance,
932 * study Id (>0) otherwise
933 * \param reason explains error when creation fails
934 * \return a loaded component
936 //=============================================================================
937 Engines::EngineComponent_ptr
938 Engines_Container_i::createPythonInstance(std::string CompName, int studyId,
941 Engines::EngineComponent_var iobject = Engines::EngineComponent::_nil() ;
943 _numInstanceMutex.lock() ; // lock on the instance number
945 int numInstance = _numInstance ;
946 _numInstanceMutex.unlock() ;
949 sprintf( aNumI , "%d" , numInstance ) ;
950 std::string instanceName = CompName + "_inst_" + aNumI ;
951 std::string component_registerName = _containerName + "/" + instanceName;
953 PyGILState_STATE gstate = PyGILState_Ensure();
954 PyObject *result = PyObject_CallMethod(_pyCont,
955 (char*)"create_component_instance",
958 instanceName.c_str(),
962 PyArg_ParseTuple(result,"ss", &ior, &error);
963 std::string iors = ior;
966 PyGILState_Release(gstate);
970 CORBA::Object_var obj = _orb->string_to_object(iors.c_str());
971 iobject = Engines::EngineComponent::_narrow( obj ) ;
972 _listInstances_map[instanceName] = iobject;
974 return iobject._retn();
978 Engines_Container_i::create_python_service_instance(const char * CompName,
979 CORBA::String_out reason)
981 CORBA::Object_var object = CORBA::Object::_nil();
983 _numInstanceMutex.lock() ; // lock on the instance number
985 int numInstance = _numInstance ;
986 _numInstanceMutex.unlock() ;
989 sprintf( aNumI , "%d" , numInstance ) ;
990 std::string instanceName = std::string(CompName) + "_inst_" + aNumI ;
991 std::string component_registerName = _containerName + "/" + instanceName;
993 PyGILState_STATE gstate = PyGILState_Ensure();
994 PyObject *result = PyObject_CallMethod(_pyCont,
995 (char*)"create_component_instance",
998 instanceName.c_str(),
1002 PyArg_ParseTuple(result,"ss", &ior, &error);
1003 reason = CORBA::string_dup(error);
1004 char * _ior = CORBA::string_dup(ior);
1006 PyGILState_Release(gstate);
1012 //=============================================================================
1013 //! Create a new component instance (C++ implementation)
1015 * C++ method: create a servant instance of a component.
1016 * \param genericRegisterName Name of the component instance to register
1017 * in Registry & Name Service,
1018 * (without _inst_n suffix, like "COMPONENT")
1019 * \param handle loaded library handle
1020 * \param studyId 0 for multiStudy instance,
1021 * study Id (>0) otherwise
1022 * \param reason explains error when creation fails
1023 * \return a loaded component
1025 * example with names:
1026 * - aGenRegisterName = COMPONENT (= first argument)
1027 * - _containerName = /Containers/cli76ce/FactoryServer
1028 * - factoryName = COMPONENTEngine_factory
1029 * - component_registerBase = /Containers/cli76ce/FactoryServer/COMPONENT
1030 * - instanceName = COMPONENT_inst_1
1031 * - component_registerName = /Containers/cli76ce/FactoryServer/COMPONENT_inst_1
1033 //=============================================================================
1034 Engines::EngineComponent_ptr
1035 Engines_Container_i::createInstance(std::string genericRegisterName,
1038 std::string& reason)
1040 // --- find the factory
1042 std::string aGenRegisterName = genericRegisterName;
1043 std::string factory_name = aGenRegisterName + std::string("Engine_factory");
1044 SCRUTE(factory_name) ;
1046 typedef PortableServer::ObjectId* (*FACTORY_FUNCTION) (CORBA::ORB_ptr,
1047 PortableServer::POA_ptr,
1048 PortableServer::ObjectId *,
1053 FACTORY_FUNCTION Component_factory = (FACTORY_FUNCTION)dlsym( handle, factory_name.c_str() );
1055 FACTORY_FUNCTION Component_factory = (FACTORY_FUNCTION)GetProcAddress( (HINSTANCE)handle, factory_name.c_str() );
1058 if ( !Component_factory )
1060 MESSAGE( "Can't resolve symbol: " + factory_name );
1065 return Engines::EngineComponent::_nil() ;
1068 // --- create instance
1070 Engines::EngineComponent_var iobject = Engines::EngineComponent::_nil() ;
1074 _numInstanceMutex.lock() ; // lock on the instance number
1076 int numInstance = _numInstance ;
1077 _numInstanceMutex.unlock() ;
1080 sprintf( aNumI , "%d" , numInstance ) ;
1081 std::string instanceName = aGenRegisterName + "_inst_" + aNumI ;
1082 std::string component_registerName =
1083 _containerName + "/" + instanceName;
1085 // --- Instantiate required CORBA object
1087 PortableServer::ObjectId *id ; //not owner, do not delete (nore use var)
1088 id = (Component_factory) ( _orb, _poa, _id, instanceName.c_str(),
1089 aGenRegisterName.c_str() ) ;
1092 reason="Can't get ObjectId from factory";
1094 return iobject._retn();
1097 // --- get reference & servant from id
1099 CORBA::Object_var obj = _poa->id_to_reference(*id);
1100 iobject = Engines::EngineComponent::_narrow( obj ) ;
1102 Engines_Component_i *servant =
1103 dynamic_cast<Engines_Component_i*>(_poa->reference_to_servant(iobject));
1105 //SCRUTE(servant->_refcount_value());
1106 _numInstanceMutex.lock() ; // lock to be alone (stl container write)
1107 _listInstances_map[instanceName] = iobject;
1108 _cntInstances_map[aGenRegisterName] += 1;
1109 _numInstanceMutex.unlock() ;
1110 SCRUTE(aGenRegisterName);
1111 SCRUTE(_cntInstances_map[aGenRegisterName]);
1112 servant->setStudyId(studyId);
1113 servant->_remove_ref(); // do not need servant any more (remove ref from reference_to_servant)
1114 //SCRUTE(servant->_refcount_value());
1116 // --- register the engine under the name
1117 // containerName(.dir)/instanceName(.object)
1119 _NS->Register( iobject , component_registerName.c_str() ) ;
1120 MESSAGE( component_registerName.c_str() << " bound" ) ;
1124 reason="Container_i::createInstance exception caught";
1127 return iobject._retn();
1130 //=============================================================================
1131 //! Find an existing (in the container) component instance
1133 * CORBA method: Finds a servant instance of a component
1134 * \param registeredName Name of the component in Registry or Name Service,
1135 * without instance suffix number
1136 * \param studyId 0 if instance is not associated to a study,
1137 * >0 otherwise (== study id)
1138 * \return the first instance found with same studyId
1140 //=============================================================================
1141 Engines::EngineComponent_ptr
1142 Engines_Container_i::find_component_instance( const char* registeredName,
1143 CORBA::Long studyId)
1145 Engines::EngineComponent_var anEngine = Engines::EngineComponent::_nil();
1146 std::map<std::string,Engines::EngineComponent_var>::iterator itm =_listInstances_map.begin();
1147 while (itm != _listInstances_map.end())
1149 std::string instance = (*itm).first;
1151 if (instance.find(registeredName) == 0)
1153 anEngine = (*itm).second;
1154 if (studyId == anEngine->getStudyId())
1156 return anEngine._retn();
1161 return anEngine._retn();
1164 //=============================================================================
1165 //! Remove the component instance from container
1167 * CORBA method: Stops the component servant, and deletes all related objects
1168 * \param component_i Component to be removed
1170 //=============================================================================
1172 void Engines_Container_i::remove_impl(Engines::EngineComponent_ptr component_i)
1174 ASSERT(! CORBA::is_nil(component_i));
1175 std::string instanceName = component_i->instanceName() ;
1176 MESSAGE("unload component " << instanceName);
1177 _numInstanceMutex.lock() ; // lock to be alone (stl container write)
1178 _listInstances_map.erase(instanceName);
1179 _numInstanceMutex.unlock() ;
1180 component_i->destroy() ;
1181 _NS->Destroy_Name(instanceName.c_str());
1184 //=============================================================================
1185 //! Unload component libraries from the container
1187 * CORBA method: Discharges unused libraries from the container.
1189 //=============================================================================
1190 void Engines_Container_i::finalize_removal()
1192 MESSAGE("finalize unload : dlclose");
1193 _numInstanceMutex.lock(); // lock to be alone
1194 // (see decInstanceCnt, load_component_Library)
1195 std::map<std::string, void *>::iterator ith;
1196 for (ith = _toRemove_map.begin(); ith != _toRemove_map.end(); ith++)
1198 void *handle = (*ith).second;
1199 std::string impl_name= (*ith).first;
1204 // dlclose(handle); // SALOME unstable after ...
1205 // _library_map.erase(impl_name);
1208 _toRemove_map.clear();
1209 _numInstanceMutex.unlock();
1212 //=============================================================================
1213 //! Decrement component instance reference count
1217 //=============================================================================
1218 void Engines_Container_i::decInstanceCnt(std::string genericRegisterName)
1220 if(_cntInstances_map.count(genericRegisterName)==0)
1222 std::string aGenRegisterName =genericRegisterName;
1223 MESSAGE("Engines_Container_i::decInstanceCnt " << aGenRegisterName);
1224 ASSERT(_cntInstances_map[aGenRegisterName] > 0);
1225 _numInstanceMutex.lock(); // lock to be alone
1226 // (see finalize_removal, load_component_Library)
1227 _cntInstances_map[aGenRegisterName] -= 1;
1228 SCRUTE(_cntInstances_map[aGenRegisterName]);
1229 if (_cntInstances_map[aGenRegisterName] == 0)
1231 std::string impl_name =
1232 Engines_Component_i::GetDynLibraryName(aGenRegisterName.c_str());
1234 void* handle = _library_map[impl_name];
1236 _toRemove_map[impl_name] = handle;
1238 _numInstanceMutex.unlock();
1241 //=============================================================================
1242 //! Find or create a new component instance
1244 * CORBA method: find or create an instance of the component (servant),
1245 * load a new component class (dynamic library) if required,
1247 * ---- FOR COMPATIBILITY WITH 2.2 ----
1249 * ---- USE ONLY FOR MULTISTUDY INSTANCES ! --------
1251 * The servant registers itself to naming service and Registry.
1252 * \param genericRegisterName Name of the component to register
1253 * in Registry & Name Service
1254 * \param componentName Name of the constructed library of the component
1255 * \return a loaded component
1257 //=============================================================================
1259 Engines::EngineComponent_ptr
1260 Engines_Container_i::load_impl( const char* genericRegisterName,
1261 const char* componentName )
1264 std::string impl_name = std::string(LIB) + genericRegisterName + ENGINESO;
1265 Engines::EngineComponent_var iobject = Engines::EngineComponent::_nil() ;
1266 if (load_component_Library(genericRegisterName,reason))
1267 iobject = find_or_create_instance(genericRegisterName, impl_name);
1268 CORBA::string_free(reason);
1269 return iobject._retn();
1272 //=============================================================================
1273 //! Finds an already existing component instance or create a new instance
1275 * C++ method: Finds an already existing servant instance of a component, or
1276 * create an instance.
1277 * ---- USE ONLY FOR MULTISTUDY INSTANCES ! --------
1278 * \param genericRegisterName Name of the component instance to register
1279 * in Registry & Name Service,
1280 * (without _inst_n suffix, like "COMPONENT")
1281 * \param componentLibraryName like "libCOMPONENTEngine.so"
1282 * \return a loaded component
1284 * example with names:
1285 * - aGenRegisterName = COMPONENT (= first argument)
1286 * - impl_name = libCOMPONENTEngine.so (= second argument)
1287 * - _containerName = /Containers/cli76ce/FactoryServer
1288 * - factoryName = COMPONENTEngine_factory
1289 * - component_registerBase = /Containers/cli76ce/FactoryServer/COMPONENT
1290 * - instanceName = COMPONENT_inst_1
1291 * - component_registerName = /Containers/cli76ce/FactoryServer/COMPONENT_inst_1
1293 //=============================================================================
1295 Engines::EngineComponent_ptr
1296 Engines_Container_i::find_or_create_instance(std::string genericRegisterName,
1297 std::string componentLibraryName)
1299 std::string aGenRegisterName = genericRegisterName;
1300 std::string impl_name = componentLibraryName;
1301 if (_library_map.count(impl_name) == 0)
1303 INFOS("shared library " << impl_name <<" must be loaded before creating instance");
1304 return Engines::EngineComponent::_nil() ;
1308 // --- find a registered instance in naming service, or create
1310 void* handle = _library_map[impl_name];
1311 std::string component_registerBase =
1312 _containerName + "/" + aGenRegisterName;
1313 Engines::EngineComponent_var iobject = Engines::EngineComponent::_nil() ;
1317 CORBA::Object_var obj =
1318 _NS->ResolveFirst( component_registerBase.c_str());
1319 if ( CORBA::is_nil( obj ) )
1321 iobject = createInstance(genericRegisterName,
1324 reason); // force multiStudy instance here !
1328 iobject = Engines::EngineComponent::_narrow( obj ) ;
1329 Engines_Component_i *servant =
1330 dynamic_cast<Engines_Component_i*>
1331 (_poa->reference_to_servant(iobject));
1333 int studyId = servant->getStudyId();
1334 ASSERT (studyId >= 0);
1335 if (studyId == 0) // multiStudy instance, OK
1338 MESSAGE(component_registerBase.c_str()<<" already bound");
1340 else // monoStudy instance: NOK
1342 iobject = Engines::EngineComponent::_nil();
1343 INFOS("load_impl & find_component_instance methods "
1344 << "NOT SUITABLE for mono study components");
1350 INFOS( "Container_i::load_impl caught" ) ;
1352 return iobject._retn();
1356 //=============================================================================
1357 //! Indicate if container is a python one
1359 * Retrieves only with container naming convention if it is a python container
1361 //=============================================================================
1362 bool Engines_Container_i::isPythonContainer(const char* ContainerName)
1365 int len=strlen(ContainerName);
1367 if(strcmp(ContainerName+len-2,"Py")==0)
1372 //=============================================================================
1373 //! Kill the container
1375 * CORBA method: Kill the container process with exit(0).
1376 * To remove : never returns !
1378 //=============================================================================
1379 bool Engines_Container_i::Kill_impl()
1381 MESSAGE("Engines_Container_i::Kill() pid "<< getpid() << " containerName "
1382 << _containerName.c_str() << " machineName "
1383 << Kernel_Utils::GetHostname().c_str());
1384 INFOS("===============================================================");
1385 INFOS("= REMOVE calls to Kill_impl in C++ container =");
1386 INFOS("===============================================================");
1392 //=============================================================================
1396 //=============================================================================
1397 void ActSigIntHandler()
1400 struct sigaction SigIntAct ;
1401 SigIntAct.sa_sigaction = &SigIntHandler ;
1402 sigemptyset(&SigIntAct.sa_mask);
1403 SigIntAct.sa_flags = SA_SIGINFO ;
1406 // DEBUG 03.02.2005 : the first parameter of sigaction is not a mask of signals
1407 // (SIGINT | SIGUSR1) :
1408 // it must be only one signal ===> one call for SIGINT
1409 // and an other one for SIGUSR1
1412 if ( sigaction( SIGINT , &SigIntAct, NULL ) )
1414 perror("SALOME_Container main ") ;
1417 if ( sigaction( SIGUSR1 , &SigIntAct, NULL ) )
1419 perror("SALOME_Container main ") ;
1422 if ( sigaction( SIGUSR2 , &SigIntAct, NULL ) )
1424 perror("SALOME_Container main ") ;
1428 //PAL9042 JR : during the execution of a Signal Handler (and of methods called through Signal Handlers)
1429 // use of streams (and so on) should never be used because :
1430 // streams of C++ are naturally thread-safe and use pthread_mutex_lock ===>
1431 // A stream operation may be interrupted by a signal and if the Handler use stream we
1432 // may have a "Dead-Lock" ===HangUp
1433 //==INFOS is commented
1434 // INFOS(pthread_self() << "SigIntHandler activated") ;
1437 signal( SIGINT, SigIntHandler );
1438 // legacy code required to supervisor. Commented in order to avoid problems on Windows
1439 // signal( SIGUSR1, SigIntHandler );
1445 void CallCancelThread() ;
1448 void SigIntHandler(int what ,
1449 siginfo_t * siginfo ,
1452 //PAL9042 JR : during the execution of a Signal Handler (and of methods called through Signal Handlers)
1453 // use of streams (and so on) should never be used because :
1454 // streams of C++ are naturally thread-safe and use pthread_mutex_lock ===>
1455 // A stream operation may be interrupted by a signal and if the Handler use stream we
1456 // may have a "Dead-Lock" ===HangUp
1457 //==MESSAGE is commented
1458 // MESSAGE(pthread_self() << "SigIntHandler what " << what << std::endl
1459 // << " si_signo " << siginfo->si_signo << std::endl
1460 // << " si_code " << siginfo->si_code << std::endl
1461 // << " si_pid " << siginfo->si_pid) ;
1466 // MESSAGE("SigIntHandler END sleeping.") ;
1471 ActSigIntHandler() ;
1472 if ( siginfo->si_signo == SIGUSR1 )
1476 else if ( siginfo->si_signo == SIGUSR2 )
1478 CallCancelThread() ;
1483 // MESSAGE("SigIntHandler BEGIN sleeping.") ;
1490 // MESSAGE("SigIntHandler LEAVE sleeping after " << count << " s.") ;
1496 void SigIntHandler( int what )
1499 MESSAGE( pthread_self() << "SigIntHandler what " << what << std::endl );
1501 MESSAGE( "SigIntHandler what " << what << std::endl );
1506 MESSAGE("SigIntHandler END sleeping.") ;
1511 ActSigIntHandler() ;
1512 if ( what == SIGUSR1 )
1519 MESSAGE("SigIntHandler BEGIN sleeping.") ;
1526 MESSAGE("SigIntHandler LEAVE sleeping after " << count << " s.") ;
1533 //=============================================================================
1534 //! Get or create a file reference object associated to a local file (to transfer it)
1536 * CORBA method: get or create a fileRef object associated to a local file
1537 * (a file on the computer on which runs the container server), which stores
1538 * a list of (machine, localFileName) corresponding to copies already done.
1540 * \param origFileName absolute path for a local file to copy on other
1542 * \return a fileRef object associated to the file.
1544 //=============================================================================
1545 Engines::fileRef_ptr
1546 Engines_Container_i::createFileRef(const char* origFileName)
1548 std::string origName(origFileName);
1549 Engines::fileRef_var theFileRef = Engines::fileRef::_nil();
1551 if (origName[0] != '/')
1553 INFOS("path of file to copy must be an absolute path beginning with '/'");
1554 return Engines::fileRef::_nil();
1557 if (CORBA::is_nil(_fileRef_map[origName]))
1559 CORBA::Object_var obj=_poa->id_to_reference(*_id);
1560 Engines::Container_var pCont = Engines::Container::_narrow(obj);
1561 fileRef_i* aFileRef = new fileRef_i(pCont, origFileName);
1562 theFileRef = Engines::fileRef::_narrow(aFileRef->_this());
1563 _numInstanceMutex.lock() ; // lock to be alone (stl container write)
1564 _fileRef_map[origName] = theFileRef;
1565 _numInstanceMutex.unlock() ;
1568 theFileRef = Engines::fileRef::_duplicate(_fileRef_map[origName]);
1569 ASSERT(! CORBA::is_nil(theFileRef));
1570 return theFileRef._retn();
1573 //=============================================================================
1574 //! Get a fileTransfer reference
1577 * \return a reference to the fileTransfer object
1579 //=============================================================================
1580 Engines::fileTransfer_ptr
1581 Engines_Container_i::getFileTransfer()
1583 Engines::fileTransfer_var aFileTransfer
1584 = Engines::fileTransfer::_duplicate(_fileTransfer);
1585 return aFileTransfer._retn();
1588 //=============================================================================
1589 //! Create a Salome file
1590 //=============================================================================
1591 Engines::Salome_file_ptr
1592 Engines_Container_i::createSalome_file(const char* origFileName)
1594 std::string origName(origFileName);
1595 if (CORBA::is_nil(_Salome_file_map[origName]))
1597 Salome_file_i* aSalome_file = new Salome_file_i();
1598 aSalome_file->setContainer(Engines::Container::_duplicate(this->_this()));
1601 aSalome_file->setLocalFile(origFileName);
1602 aSalome_file->recvFiles();
1604 catch (const SALOME::SALOME_Exception& e)
1606 return Engines::Salome_file::_nil();
1609 Engines::Salome_file_var theSalome_file = Engines::Salome_file::_nil();
1610 theSalome_file = Engines::Salome_file::_narrow(aSalome_file->_this());
1611 _numInstanceMutex.lock() ; // lock to be alone (stl container write)
1612 _Salome_file_map[origName] = theSalome_file;
1613 _numInstanceMutex.unlock() ;
1616 Engines::Salome_file_ptr theSalome_file =
1617 Engines::Salome_file::_duplicate(_Salome_file_map[origName]);
1618 ASSERT(!CORBA::is_nil(theSalome_file));
1619 return theSalome_file;
1622 //=============================================================================
1623 /*! \brief copy a file from a remote host (container) to the local host
1624 * \param container the remote container
1625 * \param remoteFile the file to copy locally from the remote host into localFile
1626 * \param localFile the local file
1628 //=============================================================================
1629 void Engines_Container_i::copyFile(Engines::Container_ptr container, const char* remoteFile, const char* localFile)
1631 Engines::fileTransfer_var fileTransfer = container->getFileTransfer();
1634 if ((fp = fopen(localFile,"wb")) == NULL)
1636 INFOS("file " << localFile << " cannot be open for writing");
1640 CORBA::Long fileId = fileTransfer->open(remoteFile);
1643 Engines::fileBlock* aBlock;
1650 aBlock = fileTransfer->getBlock(fileId);
1651 toFollow = aBlock->length();
1653 CORBA::Octet *buf = aBlock->get_buffer();
1654 fwrite(buf, sizeof(CORBA::Octet), toFollow, fp);
1658 MESSAGE("end of transfer");
1659 fileTransfer->close(fileId);
1663 INFOS("open reference file for copy impossible");
1667 //=============================================================================
1668 /*! \brief create a PyNode object to execute remote python code
1669 * \param nodeName the name of the node
1670 * \param code the python code to load
1671 * \return the PyNode
1673 //=============================================================================
1674 Engines::PyNode_ptr Engines_Container_i::createPyNode(const char* nodeName, const char* code)
1676 Engines::PyNode_var node= Engines::PyNode::_nil();
1678 PyGILState_STATE gstate = PyGILState_Ensure();
1679 PyObject *res = PyObject_CallMethod(_pyCont,
1680 (char*)"create_pynode",
1688 PyGILState_Release(gstate);
1689 SALOME::ExceptionStruct es;
1690 es.type = SALOME::INTERNAL_ERROR;
1691 es.text = "can not create a python node";
1692 throw SALOME::SALOME_Exception(es);
1694 long ierr=PyInt_AsLong(PyTuple_GetItem(res,0));
1695 PyObject* result=PyTuple_GetItem(res,1);
1696 std::string astr=PyString_AsString(result);
1698 PyGILState_Release(gstate);
1701 Utils_Locker lck(&_mutexForDftPy);
1702 CORBA::Object_var obj=_orb->string_to_object(astr.c_str());
1703 node=Engines::PyNode::_narrow(obj);
1704 std::map<std::string,Engines::PyNode_var>::iterator it(_dftPyNode.find(nodeName));
1705 if(it==_dftPyNode.end())
1707 _dftPyNode[nodeName]=node;
1711 Engines::PyNode_var oldNode((*it).second);
1712 if(!CORBA::is_nil(oldNode))
1713 oldNode->UnRegister();
1716 if(!CORBA::is_nil(node))
1718 return node._retn();
1722 SALOME::ExceptionStruct es;
1723 es.type = SALOME::INTERNAL_ERROR;
1724 es.text = astr.c_str();
1725 throw SALOME::SALOME_Exception(es);
1729 //=============================================================================
1730 /*! \brief Retrieves the last created PyNode instance with createPyNode.
1733 //=============================================================================
1734 Engines::PyNode_ptr Engines_Container_i::getDefaultPyNode(const char *nodeName)
1736 Utils_Locker lck(&_mutexForDftPy);
1737 std::map<std::string,Engines::PyNode_var>::iterator it(_dftPyNode.find(nodeName));
1738 if(it==_dftPyNode.end())
1739 return Engines::PyNode::_nil();
1742 Engines::PyNode_var tmpVar((*it).second);
1743 if(!CORBA::is_nil(tmpVar))
1744 return Engines::PyNode::_duplicate(tmpVar);
1746 return Engines::PyNode::_nil();
1750 //=============================================================================
1751 /*! \brief create a PyScriptNode object to execute remote python code
1752 * \param nodeName the name of the node
1753 * \param code the python code to load
1754 * \return the PyScriptNode
1756 //=============================================================================
1757 Engines::PyScriptNode_ptr Engines_Container_i::createPyScriptNode(const char* nodeName, const char* code)
1759 Engines::PyScriptNode_var node= Engines::PyScriptNode::_nil();
1761 PyGILState_STATE gstate = PyGILState_Ensure();
1762 PyObject *res = PyObject_CallMethod(_pyCont,
1763 (char*)"create_pyscriptnode",
1771 PyGILState_Release(gstate);
1772 SALOME::ExceptionStruct es;
1773 es.type = SALOME::INTERNAL_ERROR;
1774 es.text = "can not create a python node";
1775 throw SALOME::SALOME_Exception(es);
1777 long ierr=PyInt_AsLong(PyTuple_GetItem(res,0));
1778 PyObject* result=PyTuple_GetItem(res,1);
1779 std::string astr=PyString_AsString(result);
1781 PyGILState_Release(gstate);
1785 Utils_Locker lck(&_mutexForDftPy);
1786 CORBA::Object_var obj=_orb->string_to_object(astr.c_str());
1787 node=Engines::PyScriptNode::_narrow(obj);
1788 std::map<std::string,Engines::PyScriptNode_var>::iterator it(_dftPyScriptNode.find(nodeName));
1789 if(it==_dftPyScriptNode.end())
1791 _dftPyScriptNode[nodeName]=node;
1795 Engines::PyScriptNode_var oldNode((*it).second);
1796 if(!CORBA::is_nil(oldNode))
1797 oldNode->UnRegister();
1800 if(!CORBA::is_nil(node))
1802 return node._retn();
1806 SALOME::ExceptionStruct es;
1807 es.type = SALOME::INTERNAL_ERROR;
1808 es.text = astr.c_str();
1809 throw SALOME::SALOME_Exception(es);
1813 //=============================================================================
1814 /*! \brief Retrieves the last created PyScriptNode instance with createPyScriptNode.
1817 //=============================================================================
1818 Engines::PyScriptNode_ptr Engines_Container_i::getDefaultPyScriptNode(const char *nodeName)
1820 Utils_Locker lck(&_mutexForDftPy);
1821 std::map<std::string,Engines::PyScriptNode_var>::iterator it(_dftPyScriptNode.find(nodeName));
1822 if(it==_dftPyScriptNode.end())
1823 return Engines::PyScriptNode::_nil();
1826 Engines::PyScriptNode_var tmpVar((*it).second);
1827 if(!CORBA::is_nil(tmpVar))
1828 return Engines::PyScriptNode::_duplicate(tmpVar);
1830 return Engines::PyScriptNode::_nil();
1834 //=============================================================================
1835 /* int checkifexecutable(const char *filename)
1837 * Return non-zero if the name is an executable file, and
1838 * zero if it is not executable, or if it does not exist.
1840 //=============================================================================
1841 int checkifexecutable(const std::string& filename)
1844 struct stat statinfo;
1846 result = stat(filename.c_str(), &statinfo);
1847 if (result < 0) return 0;
1848 if (!S_ISREG(statinfo.st_mode)) return 0;
1853 if (statinfo.st_uid == geteuid()) return statinfo.st_mode & S_IXUSR;
1854 if (statinfo.st_gid == getegid()) return statinfo.st_mode & S_IXGRP;
1855 return statinfo.st_mode & S_IXOTH;
1860 //=============================================================================
1861 /*! \brief Find a file by searching in a path
1862 * \param filename file name to search
1863 * \param path path to search in
1864 * \param pth the complete file path if found
1865 * \return 1 if found 0 if not
1867 //=============================================================================
1868 int findpathof(const std::string& path, std::string& pth, const std::string& filename)
1870 if ( path.size() == 0 ) return 0;
1872 std::string::size_type offset = 0;
1873 std::string::size_type pos = 0;
1875 struct stat statinfo;
1879 pos = path.find( SEP, offset );
1880 pth = path.substr( offset, pos - offset );
1881 if ( pth.size() > 0 )
1883 if( pth[pth.size()-1] != SLASH ) pth += SLASH;
1885 int result=stat(pth.c_str(), &statinfo);
1886 if(result == 0) found=1;
1888 if (pos == std::string::npos) break;
1894 void Engines_Container_i::registerTemporaryFile( const std::string& fileName )
1896 _tmp_files.remove( fileName );
1897 _tmp_files.push_back( fileName );
1900 void Engines_Container_i::unregisterTemporaryFile( const std::string& fileName )
1902 _tmp_files.remove( fileName );
1905 void Engines_Container_i::clearTemporaryFiles()
1907 std::list<std::string>::const_iterator it;
1908 for ( it = _tmp_files.begin(); it != _tmp_files.end(); ++it ) {
1910 std::string command = "del /F /P";
1912 std::string command = "rm -rf ";
1915 system( command.c_str() );