// Module : SALOME
// $Header$
+//#define private public
#include <SALOMEconfig.h>
+#ifndef WNT
#include CORBA_SERVER_HEADER(SALOME_Component)
+#else
+#include <SALOME_Component.hh>
+#endif
#include "SALOME_Container_i.hxx"
+#include "SALOME_Component_i.hxx"
#include "SALOME_NamingService.hxx"
-#include "Utils_SINGLETON.hxx"
#include "OpUtil.hxx"
+#include <string.h>
#include <stdio.h>
+#ifndef WNT
#include <dlfcn.h>
#include <unistd.h>
+#else
+#include "../../adm/win32/SALOME_WNT.hxx"
+#include <signal.h>
+#include <process.h>
+int SIGUSR1 = 1000;
+#endif
+#include <Python.h>
+#include "Container_init_python.hxx"
#include "utilities.h"
using namespace std;
bool _Sleeping = false ;
-// Needed by multi-threaded Python
+// // Needed by multi-threaded Python --- Supervision
int _ArgC ;
char ** _ArgV ;
// Other Containers are started via start_impl of FactoryServer
extern "C" {void ActSigIntHandler() ; }
+#ifndef WNT
extern "C" {void SigIntHandler(int, siginfo_t *, void *) ; }
+#else
+ extern "C" {void SigIntHandler( int ) ; }
+#endif
+
+
+map<std::string, int> Engines_Container_i::_cntInstances_map;
+map<std::string, void *> Engines_Container_i::_library_map;
+map<std::string, void *> Engines_Container_i::_toRemove_map;
+omni_mutex Engines_Container_i::_numInstanceMutex ;
+
+//=============================================================================
+/*!
+ * Default constructor, not for use
+ */
+//=============================================================================
Engines_Container_i::Engines_Container_i () :
- _numInstance(0)
+ _numInstance(0)
{
}
+//=============================================================================
+/*!
+ * Construtor to use
+ */
+//=============================================================================
+
Engines_Container_i::Engines_Container_i (CORBA::ORB_ptr orb,
PortableServer::POA_ptr poa,
char *containerName ,
int argc , char* argv[],
- bool regist,
- bool activ ) :
- _numInstance(0)
+ bool activAndRegist,
+ bool isServantAloneInProcess
+ ) :
+ _numInstance(0),_isServantAloneInProcess(isServantAloneInProcess)
{
_pid = (long)getpid();
- if(regist)
+ if(activAndRegist)
ActSigIntHandler() ;
- _ArgC = argc ;
- _ArgV = argv ;
-
_argc = argc ;
_argv = argv ;
- int i = strlen( _argv[ 0 ] ) - 1 ;
- while ( i >= 0 ) {
- if ( _argv[ 0 ][ i ] == '/' ) {
- _argv[ 0 ][ i+1 ] = '\0' ;
- break ;
- }
- i -= 1 ;
- }
+
string hostname = GetHostname();
MESSAGE(hostname << " " << getpid() << " Engines_Container_i starting argc "
<< _argc << " Thread " << pthread_self() ) ;
- i = 0 ;
- while ( _argv[ i ] ) {
- MESSAGE(" argv" << i << " " << _argv[ i ]) ;
- i++ ;
- }
- if ( argc != 4 ) {
- MESSAGE("SALOME_Container usage : SALOME_Container ServerName -ORBInitRef NameService=corbaname::hostname:tcpipPortNumber") ;
-// exit(0) ;
- }
- SCRUTE(hostname);
+ int i = 0 ;
+ while ( _argv[ i ] )
+ {
+ MESSAGE(" argv" << i << " " << _argv[ i ]) ;
+ i++ ;
+ }
- _containerName = "/Containers/";
- if (strlen(containerName)== 0)
+ if ( argc < 2 )
{
- _containerName += hostname;
+ INFOS("SALOME_Container usage : SALOME_Container ServerName");
+ ASSERT(0) ;
}
- else
+ SCRUTE(argv[1]);
+ _isSupervContainer = false;
+ if (strcmp(argv[1],"SuperVisionContainer") == 0) _isSupervContainer = true;
+
+ if (_isSupervContainer)
{
- _containerName += hostname;
- _containerName += "/" ;
- _containerName += containerName;
+ _ArgC = argc ;
+ _ArgV = argv ;
}
_orb = CORBA::ORB::_duplicate(orb) ;
_poa = PortableServer::POA::_duplicate(poa) ;
- // Pour les containers paralleles: il ne faut pas activer le container generique, mais le container specialise
- if(activ){
- MESSAGE("activate object");
- _id = _poa->activate_object(this);
- }
+
+ // Pour les containers paralleles: il ne faut pas enregistrer et activer
+ // le container generique, mais le container specialise
- // Pour les containers paralleles: il ne faut pas enregistrer le container generique, mais le container specialise
- if(regist){
- // _NS = new SALOME_NamingService(_orb);
- _NS = SINGLETON_<SALOME_NamingService>::Instance() ;
- ASSERT(SINGLETON_<SALOME_NamingService>::IsAlreadyExisting()) ;
- _NS->init_orb( orb ) ;
-
- Engines::Container_ptr pCont
- = Engines::Container::_narrow(_this());
- SCRUTE(_containerName);
- _NS->Register(pCont, _containerName.c_str());
- }
+ if(activAndRegist)
+ {
+ _id = _poa->activate_object(this);
+ _NS = new SALOME_NamingService();
+ _NS->init_orb( CORBA::ORB::_duplicate(_orb) ) ;
+ CORBA::Object_var obj=_poa->id_to_reference(*_id);
+ Engines::Container_var pCont
+ = Engines::Container::_narrow(obj);
+
+ _containerName = _NS->BuildContainerNameForNS(containerName,
+ hostname.c_str());
+ SCRUTE(_containerName);
+ _NS->Register(pCont, _containerName.c_str());
+ MESSAGE("Engines_Container_i::Engines_Container_i : Container name "
+ << _containerName);
+
+ // Python:
+ // import SALOME_Container
+ // pycont = SALOME_Container.SALOME_Container_i(containerIORStr)
+
+ CORBA::String_var sior = _orb->object_to_string(pCont);
+ string myCommand="pyCont = SALOME_Container.SALOME_Container_i('";
+ myCommand += _containerName + "','";
+ myCommand += sior;
+ myCommand += "')\n";
+ SCRUTE(myCommand);
+
+ if (!_isSupervContainer)
+ {
+ Py_ACQUIRE_NEW_THREAD;
+#ifdef WNT
+ // mpv: this is temporary solution: there is a unregular crash if not
+ Sleep(2000);
+ PyRun_SimpleString("import sys\n");
+ // first element is the path to Registry.dll, but it's wrong
+ PyRun_SimpleString("sys.path = sys.path[1:]\n");
+#endif
+ PyRun_SimpleString("import SALOME_Container\n");
+ PyRun_SimpleString((char*)myCommand.c_str());
+ Py_RELEASE_NEW_THREAD;
+ }
+ }
}
+//=============================================================================
+/*!
+ * Destructor
+ */
+//=============================================================================
+
Engines_Container_i::~Engines_Container_i()
{
MESSAGE("Container_i::~Container_i()");
+ delete _id;
}
+//=============================================================================
+/*!
+ * CORBA attribute: Container name (see constructor)
+ */
+//=============================================================================
+
char* Engines_Container_i::name()
{
return CORBA::string_dup(_containerName.c_str()) ;
}
-char* Engines_Container_i::machineName()
+//=============================================================================
+/*!
+ * CORBA method: Get the hostName of the Container (without domain extensions)
+ */
+//=============================================================================
+
+char* Engines_Container_i::getHostName()
{
string s = GetHostname();
- MESSAGE("Engines_Container_i::machineName " << s);
- return CORBA::string_dup(s.c_str()) ;
+ MESSAGE("Engines_Container_i::getHostName " << s);
+ return CORBA::string_dup(s.c_str()) ;
+}
+
+//=============================================================================
+/*!
+ * CORBA method: Get the PID (process identification) of the Container
+ */
+//=============================================================================
+
+CORBA::Long Engines_Container_i::getPID()
+{
+ return (CORBA::Long)getpid();
}
+//=============================================================================
+/*!
+ * CORBA method: check if servant is still alive
+ */
+//=============================================================================
+
void Engines_Container_i::ping()
{
MESSAGE("Engines_Container_i::ping() pid "<< getpid());
}
-//! Kill current container
-bool Engines_Container_i::Kill_impl() {
- MESSAGE("Engines_Container_i::Kill() pid "<< getpid() << " containerName "
- << _containerName.c_str() << " machineName "
- << GetHostname().c_str());
- exit( 0 ) ;
-}
+//=============================================================================
+/*!
+ * CORBA method, oneway: Server shutdown.
+ * - Container name removed from naming service,
+ * - servant deactivation,
+ * - orb shutdown if no other servants in the process
+ */
+//=============================================================================
-//! Launch a new container from the current container
-Engines::Container_ptr Engines_Container_i::start_impl(
- const char* ContainerName ) {
- MESSAGE("start_impl argc " << _argc << " ContainerName " << ContainerName
- << hex << this << dec) ;
- _numInstanceMutex.lock() ; // lock on the instance number
-
- CORBA::Object_var obj = Engines::Container::_nil() ;
- bool nilvar = true ;
- try {
- string cont("/Containers/");
- cont += machineName() ;
- cont += "/" ;
- cont += ContainerName;
- INFOS(machineName() << " start_impl unknown container " << cont.c_str()
- << " try to Resolve" );
- obj = _NS->Resolve( cont.c_str() );
- nilvar = CORBA::is_nil( obj ) ;
- if ( nilvar ) {
- INFOS(machineName() << " start_impl unknown container "
- << ContainerName);
- }
- }
- catch (ServiceUnreachable&) {
- INFOS(machineName() << "Caught exception: Naming Service Unreachable");
- }
- catch (...) {
- INFOS(machineName() << "Caught unknown exception.");
- }
- if ( !nilvar ) {
- _numInstanceMutex.unlock() ;
- MESSAGE("start_impl container found without new launch") ;
- return Engines::Container::_narrow(obj);
- }
- int i = 0 ;
- while ( _argv[ i ] ) {
- MESSAGE(" argv" << i << " " << _argv[ i ]) ;
- i++ ;
- }
- string shstr = string(getenv("KERNEL_ROOT_DIR")) + "/bin/salome/SALOME_Container ";
-// string shstr( "./runSession SALOME_Container " ) ;
- shstr += ContainerName ;
- if ( _argc == 4 ) {
- shstr += " " ;
- shstr += _argv[ 2 ] ;
- shstr += " " ;
- shstr += _argv[ 3 ] ;
- }
- shstr += " > /tmp/" ;
- shstr += ContainerName ;
- shstr += ".log 2>&1 &" ;
- MESSAGE("system(" << shstr << ")") ;
- int status = system( shstr.c_str() ) ;
- if (status == -1) {
- INFOS("Engines_Container_i::start_impl SALOME_Container failed (system command status -1)") ;
- }
- else if (status == 217) {
- INFOS("Engines_Container_i::start_impl SALOME_Container failed (system command status 217)") ;
- }
- INFOS(machineName() << " Engines_Container_i::start_impl SALOME_Container launch done");
-
-// pid_t pid = fork() ;
-// if ( pid == 0 ) {
-// string anExe( _argv[ 0 ] ) ;
-// anExe += "runSession" ;
-// char * args[ 6 ] ;
-// args[ 0 ] = "runSession" ;
-// args[ 1 ] = "SALOME_Container" ;
-// args[ 2 ] = strdup( ContainerName ) ;
-// args[ 3 ] = strdup( _argv[ 2 ] ) ;
-// args[ 4 ] = strdup( _argv[ 3 ] ) ;
-// args[ 5 ] = NULL ;
-// MESSAGE("execl(" << anExe.c_str() << " , " << args[ 0 ] << " , "
-// << args[ 1 ] << " , " << args[ 2 ] << " , " << args[ 3 ]
-// << " , " << args[ 4 ] << ")") ;
-// int status = execv( anExe.c_str() , args ) ;
-// if (status == -1) {
-// INFOS("Engines_Container_i::start_impl execl failed (system command status -1)") ;
-// perror( "Engines_Container_i::start_impl execl error ") ;
-// }
-// else {
-// INFOS(machineName() << " Engines_Container_i::start_impl execl done");
-// }
-// exit(0) ;
-// }
-
- obj = Engines::Container::_nil() ;
- try {
- string cont("/Containers/");
- cont += machineName() ;
- cont += "/" ;
- cont += ContainerName;
- nilvar = true ;
- int count = 20 ;
- while ( nilvar && count >= 0) {
- sleep( 1 ) ;
- obj = _NS->Resolve(cont.c_str());
- nilvar = CORBA::is_nil( obj ) ;
- if ( nilvar ) {
- INFOS(count << ". " << machineName()
- << " start_impl unknown container " << cont.c_str());
- count -= 1 ;
- }
- }
- _numInstanceMutex.unlock() ;
- if ( !nilvar ) {
- MESSAGE("start_impl container found after new launch of SALOME_Container") ;
+void Engines_Container_i::Shutdown()
+{
+ MESSAGE("Engines_Container_i::Shutdown()");
+ _NS->Destroy_FullDirectory(_containerName.c_str());
+ //_remove_ref();
+ //_poa->deactivate_object(*_id);
+ if(_isServantAloneInProcess)
+ {
+ MESSAGE("Effective Shutdown of container Begins...");
+ LocalTraceBufferPool* bp1 = LocalTraceBufferPool::instance();
+ bp1->deleteInstance(bp1);
+ _orb->shutdown(0);
}
- return Engines::Container::_narrow(obj);
- }
- catch (ServiceUnreachable&) {
- INFOS(machineName() << "Caught exception: Naming Service Unreachable");
- }
- catch (...) {
- INFOS(machineName() << "Caught unknown exception.");
- }
- _numInstanceMutex.unlock() ;
- MESSAGE("start_impl container not found after new launch of SALOME_Container") ;
- return Engines::Container::_nil() ;
}
-Engines::Component_ptr Engines_Container_i::load_impl( const char* nameToRegister,
- const char* componentName ) {
- _numInstanceMutex.lock() ; // lock on the instance number
- BEGIN_OF( "Container_i::load_impl " << componentName ) ;
- _numInstance++ ;
- char _aNumI[12];
- sprintf( _aNumI , "%d" , _numInstance ) ;
+//=============================================================================
+/*!
+ * CORBA method: load a new component class (Python or C++ implementation)
+ * \param componentName like COMPONENT
+ * try to make a Python import of COMPONENT,
+ * then a lib open of libCOMPONENTEngine.so
+ * \return true if dlopen successfull or already done, false otherwise
+ */
+//=============================================================================
- string _impl_name = componentName;
- string _nameToRegister = nameToRegister;
- string instanceName = _nameToRegister + "_inst_" + _aNumI ;
- //SCRUTE(instanceName);
+bool
+Engines_Container_i::load_component_Library(const char* componentName)
+{
- //string absolute_impl_name = _library_path + "lib" + _impl_name + ".so";
- string absolute_impl_name( _impl_name ) ;
- SCRUTE(absolute_impl_name);
- void* handle;
- handle = dlopen( absolute_impl_name.c_str() , RTLD_LAZY ) ;
- if ( !handle ) {
- INFOS("Can't load shared library : " << absolute_impl_name);
- INFOS("error dlopen: " << dlerror());
- _numInstanceMutex.unlock() ;
- return Engines::Component::_nil() ;
- }
+ string aCompName = componentName;
+
+ // --- try dlopen C++ component
+
+#ifndef WNT
+ string impl_name = string ("lib") + aCompName + string("Engine.so");
+#else
+ string impl_name = aCompName + string("Engine.dll");
+#endif
+ SCRUTE(impl_name);
- string factory_name = _nameToRegister + string("Engine_factory");
- // SCRUTE(factory_name) ;
+ _numInstanceMutex.lock(); // lock to be alone
+ // (see decInstanceCnt, finalize_removal))
+ if (_toRemove_map[impl_name]) _toRemove_map.erase(impl_name);
+ if (_library_map[impl_name])
+ {
+ MESSAGE("Library " << impl_name << " already loaded");
+ _numInstanceMutex.unlock();
+ return true;
+ }
+
+ void* handle;
+#ifndef WNT
+ handle = dlopen( impl_name.c_str() , RTLD_LAZY ) ;
+#else
+ handle = dlopen( impl_name.c_str() , 0 ) ;
+#endif
+ if ( handle )
+ {
+ _library_map[impl_name] = handle;
+ _numInstanceMutex.unlock();
+ return true;
+ }
+ else
+ {
+ INFOS("Can't load shared library : " << impl_name);
+ INFOS("error dlopen: " << dlerror());
+ }
+ _numInstanceMutex.unlock();
- typedef PortableServer::ObjectId * (*FACTORY_FUNCTION)
- (CORBA::ORB_ptr,
- PortableServer::POA_ptr,
- PortableServer::ObjectId *,
- const char *,
- const char *) ;
- FACTORY_FUNCTION Component_factory = (FACTORY_FUNCTION) dlsym(handle, factory_name.c_str());
+ // --- try import Python component
- char *error ;
- if ( (error = dlerror() ) != NULL) {
- INFOS("Can't resolve symbol: " + factory_name);
- SCRUTE(error);
- _numInstanceMutex.unlock() ;
+ INFOS("try import Python component "<<componentName);
+ if (_isSupervContainer)
+ {
+ INFOS("Supervision Container does not support Python Component Engines");
+ return false;
+ }
+ if (_library_map[aCompName])
+ {
+ return true; // Python Component, already imported
+ }
+ else
+ {
+ Py_ACQUIRE_NEW_THREAD;
+ PyObject *mainmod = PyImport_AddModule("__main__");
+ PyObject *globals = PyModule_GetDict(mainmod);
+ PyObject *pyCont = PyDict_GetItemString(globals, "pyCont");
+ PyObject *result = PyObject_CallMethod(pyCont,
+ "import_component",
+ "s",componentName);
+ int ret= PyInt_AsLong(result);
+ SCRUTE(ret);
+ Py_RELEASE_NEW_THREAD;
+
+ if (ret) // import possible: Python component
+ {
+ _library_map[aCompName] = (void *)pyCont; // any non O value OK
+ MESSAGE("import Python: "<<aCompName<<" OK");
+ return true;
+ }
+ }
+ return false;
+}
+
+//=============================================================================
+/*!
+ * CORBA method: Creates a new servant instance of a component.
+ * The servant registers itself to naming service and Registry.
+ * \param genericRegisterName Name of the component instance to register
+ * in Registry & Name Service (without _inst_n suffix)
+ * \param studyId 0 for multiStudy instance,
+ * study Id (>0) otherwise
+ * \return a loaded component
+ */
+//=============================================================================
+
+Engines::Component_ptr
+Engines_Container_i::create_component_instance(const char*genericRegisterName,
+ CORBA::Long studyId)
+{
+ if (studyId < 0)
+ {
+ INFOS("studyId must be > 0 for mono study instance, =0 for multiStudy");
return Engines::Component::_nil() ;
}
- string component_registerName = _containerName + "/" + _nameToRegister;
Engines::Component_var iobject = Engines::Component::_nil() ;
- try {
- CORBA::Object_var obj = _NS->Resolve( component_registerName.c_str() ) ;
- if ( CORBA::is_nil( obj ) ) {
-// Instanciate required CORBA object
- PortableServer::ObjectId * id ;
- id = (Component_factory) ( _orb, _poa, _id, instanceName.c_str() ,
- _nameToRegister.c_str() ) ;
- // get reference from id
- obj = _poa->id_to_reference(*id);
- iobject = Engines::Component::_narrow( obj ) ;
-// _numInstanceMutex.lock() ; // lock on the add on handle_map (necessary ?)
- // register the engine under the name containerName.dir/nameToRegister.object
- _NS->Register( iobject , component_registerName.c_str() ) ;
- MESSAGE( "Container_i::load_impl " << component_registerName.c_str() << " bound" ) ;
- }
- else { // JR : No ReBind !!!
- MESSAGE( "Container_i::load_impl " << component_registerName.c_str() << " already bound" ) ;
+ string aCompName = genericRegisterName;
+ if (_library_map[aCompName]) // Python component
+ {
+ if (_isSupervContainer)
+ {
+ INFOS("Supervision Container does not support Python Component Engines");
+ return Engines::Component::_nil();
+ }
+ _numInstanceMutex.lock() ; // lock on the instance number
+ _numInstance++ ;
+ int numInstance = _numInstance ;
+ _numInstanceMutex.unlock() ;
+
+ char aNumI[12];
+ sprintf( aNumI , "%d" , numInstance ) ;
+ string instanceName = aCompName + "_inst_" + aNumI ;
+ string component_registerName =
+ _containerName + "/" + instanceName;
+
+ Py_ACQUIRE_NEW_THREAD;
+ PyObject *mainmod = PyImport_AddModule("__main__");
+ PyObject *globals = PyModule_GetDict(mainmod);
+ PyObject *pyCont = PyDict_GetItemString(globals, "pyCont");
+ PyObject *result = PyObject_CallMethod(pyCont,
+ "create_component_instance",
+ "ssl",
+ aCompName.c_str(),
+ instanceName.c_str(),
+ studyId);
+ string iors = PyString_AsString(result);
+ SCRUTE(iors);
+ Py_RELEASE_NEW_THREAD;
+
+ CORBA::Object_var obj = _orb->string_to_object(iors.c_str());
iobject = Engines::Component::_narrow( obj ) ;
+ return iobject._retn();
}
- }
- catch (...) {
- INFOS( "Container_i::load_impl catched" ) ;
- }
+
+ //--- try C++
+
+#ifndef WNT
+ string impl_name = string ("lib") + genericRegisterName +string("Engine.so");
+#else
+ string impl_name = genericRegisterName +string("Engine.dll");
+#endif
+ void* handle = _library_map[impl_name];
+ if ( !handle )
+ {
+ INFOS("shared library " << impl_name <<"must be loaded before instance");
+ return Engines::Component::_nil() ;
+ }
+ else
+ {
+ iobject = createInstance(genericRegisterName,
+ handle,
+ studyId);
+ return iobject._retn();
+ }
+}
+
+//=============================================================================
+/*!
+ * CORBA method: Finds a servant instance of a component
+ * \param registeredName Name of the component in Registry or Name Service,
+ * without instance suffix number
+ * \param studyId 0 if instance is not associated to a study,
+ * >0 otherwise (== study id)
+ * \return the first instance found with same studyId
+ */
+//=============================================================================
+
+Engines::Component_ptr
+Engines_Container_i::find_component_instance( const char* registeredName,
+ CORBA::Long studyId)
+{
+ Engines::Component_var anEngine = Engines::Component::_nil();
+ map<string,Engines::Component_var>::iterator itm =_listInstances_map.begin();
+ while (itm != _listInstances_map.end())
+ {
+ string instance = (*itm).first;
+ SCRUTE(instance);
+ if (instance.find(registeredName) == 0)
+ {
+ anEngine = (*itm).second;
+ if (studyId == anEngine->getStudyId())
+ {
+ return anEngine._retn();
+ }
+ }
+ itm++;
+ }
+ return anEngine._retn();
+}
-//Jr _numInstanceMutex.lock() ; // lock on the add on handle_map (necessary ?)
- handle_map[instanceName] = handle;
- END_OF("Container_i::load_impl");
- _numInstanceMutex.unlock() ;
- return Engines::Component::_duplicate(iobject);
+//=============================================================================
+/*!
+ * CORBA method: find or create an instance of the component (servant),
+ * load a new component class (dynamic library) if required,
+ * ---- FOR COMPATIBILITY WITH 2.2 ----
+ * ---- USE ONLY FOR MULTISTUDY INSTANCES ! --------
+ * The servant registers itself to naming service and Registry.
+ * \param genericRegisterName Name of the component to register
+ * in Registry & Name Service
+ * \param componentName Name of the constructed library of the component
+ * \return a loaded component
+ */
+//=============================================================================
+
+Engines::Component_ptr
+Engines_Container_i::load_impl( const char* genericRegisterName,
+ const char* componentName )
+{
+ string impl_name = string ("lib") + genericRegisterName +string("Engine.so");
+ Engines::Component_var iobject = Engines::Component::_nil() ;
+ if (load_component_Library(genericRegisterName))
+ iobject = find_or_create_instance(genericRegisterName, impl_name);
+ return iobject._retn();
}
+
+
+//=============================================================================
+/*!
+ * CORBA method: Stops the component servant, and deletes all related objects
+ * \param component_i Component to be removed
+ */
+//=============================================================================
void Engines_Container_i::remove_impl(Engines::Component_ptr component_i)
{
ASSERT(! CORBA::is_nil(component_i));
string instanceName = component_i->instanceName() ;
MESSAGE("unload component " << instanceName);
+ _listInstances_map.erase(instanceName);
component_i->destroy() ;
- MESSAGE("test key handle_map");
- _numInstanceMutex.lock() ; // lock on the remove on handle_map
- if (handle_map[instanceName]) // if key does not exist, created & initialized null
+ _NS->Destroy_Name(instanceName.c_str());
+}
+
+//=============================================================================
+/*!
+ * CORBA method: Discharges unused libraries from the container.
+ */
+//=============================================================================
+
+void Engines_Container_i::finalize_removal()
+{
+ MESSAGE("finalize unload : dlclose");
+ _numInstanceMutex.lock(); // lock to be alone
+ // (see decInstanceCnt, load_component_Library)
+ map<string, void *>::iterator ith;
+ for (ith = _toRemove_map.begin(); ith != _toRemove_map.end(); ith++)
+ {
+ void *handle = (*ith).second;
+ string impl_name= (*ith).first;
+ if (handle)
+ {
+ SCRUTE(handle);
+ SCRUTE(impl_name);
+// dlclose(handle); // SALOME unstable after ...
+// _library_map.erase(impl_name);
+ }
+ }
+ _toRemove_map.clear();
+ _numInstanceMutex.unlock();
+}
+
+//=============================================================================
+/*!
+ * CORBA method: Kill the container process with exit(0).
+ * To remove : never returns !
+ */
+//=============================================================================
+
+bool Engines_Container_i::Kill_impl()
+{
+ MESSAGE("Engines_Container_i::Kill() pid "<< getpid() << " containerName "
+ << _containerName.c_str() << " machineName "
+ << GetHostname().c_str());
+ INFOS("===============================================================");
+ INFOS("= REMOVE calls to Kill_impl in C++ container =");
+ INFOS("===============================================================");
+ //exit( 0 ) ;
+ ASSERT(0);
+ return false;
+}
+
+//=============================================================================
+/*!
+ * C++ method: Finds an already existing servant instance of a component, or
+ * create an instance.
+ * ---- USE ONLY FOR MULTISTUDY INSTANCES ! --------
+ * \param genericRegisterName Name of the component instance to register
+ * in Registry & Name Service,
+ * (without _inst_n suffix, like "COMPONENT")
+ * \param componentLibraryName like "libCOMPONENTEngine.so"
+ * \return a loaded component
+ *
+ * example with names:
+ * aGenRegisterName = COMPONENT (= first argument)
+ * impl_name = libCOMPONENTEngine.so (= second argument)
+ * _containerName = /Containers/cli76ce/FactoryServer
+ * factoryName = COMPONENTEngine_factory
+ * component_registerBase = /Containers/cli76ce/FactoryServer/COMPONENT
+ *
+ * instanceName = COMPONENT_inst_1
+ * component_registerName = /Containers/cli76ce/FactoryServer/COMPONENT_inst_1
+ */
+//=============================================================================
+
+Engines::Component_ptr
+Engines_Container_i::find_or_create_instance(string genericRegisterName,
+ string componentLibraryName)
+{
+ string aGenRegisterName = genericRegisterName;
+ string impl_name = componentLibraryName;
+ void* handle = _library_map[impl_name];
+ if ( !handle )
{
- remove_map[instanceName] = handle_map[instanceName] ;
+ INFOS("shared library " << impl_name <<"must be loaded before instance");
+ return Engines::Component::_nil() ;
}
- else MESSAGE("pas d'entree handle_map");
- handle_map.erase(instanceName) ;
- _numInstanceMutex.unlock() ;
- MESSAGE("contenu handle_map");
- map<string, void *>::iterator im ;
- for (im = handle_map.begin() ; im != handle_map.end() ; im ++)
+ else
{
- MESSAGE("reste " << (*im).first);
+ // --- find a registered instance in naming service, or create
+
+ string component_registerBase =
+ _containerName + "/" + aGenRegisterName;
+ Engines::Component_var iobject = Engines::Component::_nil() ;
+ try
+ {
+ CORBA::Object_var obj =
+ _NS->ResolveFirst( component_registerBase.c_str());
+ if ( CORBA::is_nil( obj ) )
+ {
+ iobject = createInstance(genericRegisterName,
+ handle,
+ 0); // force multiStudy instance here !
+ }
+ else
+ {
+ iobject = Engines::Component::_narrow( obj ) ;
+ Engines_Component_i *servant =
+ dynamic_cast<Engines_Component_i*>
+ (_poa->reference_to_servant(iobject));
+ ASSERT(servant)
+ int studyId = servant->getStudyId();
+ ASSERT (studyId >= 0);
+ if (studyId == 0) // multiStudy instance, OK
+ {
+ // No ReBind !
+ MESSAGE(component_registerBase.c_str()<<" already bound");
+ }
+ else // monoStudy instance: NOK
+ {
+ iobject = Engines::Component::_nil();
+ INFOS("load_impl & find_component_instance methods "
+ << "NOT SUITABLE for mono study components");
+ }
+ }
+ }
+ catch (...)
+ {
+ INFOS( "Container_i::load_impl catched" ) ;
+ }
+ return iobject._retn();
}
}
-void Engines_Container_i::finalize_removal()
+//=============================================================================
+/*!
+ * C++ method: create a servant instance of a component.
+ * \param genericRegisterName Name of the component instance to register
+ * in Registry & Name Service,
+ * (without _inst_n suffix, like "COMPONENT")
+ * \param handle loaded library handle
+ * \param studyId 0 for multiStudy instance,
+ * study Id (>0) otherwise
+ * \return a loaded component
+ *
+ * example with names:
+ * aGenRegisterName = COMPONENT (= first argument)
+ * _containerName = /Containers/cli76ce/FactoryServer
+ * factoryName = COMPONENTEngine_factory
+ * component_registerBase = /Containers/cli76ce/FactoryServer/COMPONENT
+ * instanceName = COMPONENT_inst_1
+ * component_registerName = /Containers/cli76ce/FactoryServer/COMPONENT_inst_1
+ */
+//=============================================================================
+
+Engines::Component_ptr
+Engines_Container_i::createInstance(string genericRegisterName,
+ void *handle,
+ int studyId)
{
- MESSAGE("finalize unload : dlclose");
- map<string, void *>::iterator im ;
- _numInstanceMutex.lock() ; // lock on the explore remove_map & dlclose
- for (im = remove_map.begin() ; im != remove_map.end() ; im ++)
+ // --- find the factory
+
+ string aGenRegisterName = genericRegisterName;
+ string factory_name = aGenRegisterName + string("Engine_factory");
+ SCRUTE(factory_name) ;
+
+ typedef PortableServer::ObjectId * (*FACTORY_FUNCTION)
+ (CORBA::ORB_ptr,
+ PortableServer::POA_ptr,
+ PortableServer::ObjectId *,
+ const char *,
+ const char *) ;
+
+ FACTORY_FUNCTION Component_factory
+ = (FACTORY_FUNCTION) dlsym(handle, factory_name.c_str());
+
+ char *error ;
+ if ( (error = dlerror() ) != NULL)
+ {
+ INFOS("Can't resolve symbol: " + factory_name);
+ SCRUTE(error);
+ return Engines::Component::_nil() ;
+ }
+
+ // --- create instance
+
+ Engines::Component_var iobject = Engines::Component::_nil() ;
+
+ try
+ {
+ _numInstanceMutex.lock() ; // lock on the instance number
+ _numInstance++ ;
+ int numInstance = _numInstance ;
+ _numInstanceMutex.unlock() ;
+
+ char aNumI[12];
+ sprintf( aNumI , "%d" , numInstance ) ;
+ string instanceName = aGenRegisterName + "_inst_" + aNumI ;
+ string component_registerName =
+ _containerName + "/" + instanceName;
+
+ // --- Instanciate required CORBA object
+
+ PortableServer::ObjectId *id ; //not owner, do not delete (nore use var)
+ id = (Component_factory) ( _orb, _poa, _id, instanceName.c_str(),
+ aGenRegisterName.c_str() ) ;
+
+ // --- get reference & servant from id
+
+ CORBA::Object_var obj = _poa->id_to_reference(*id);
+ iobject = Engines::Component::_narrow( obj ) ;
+
+ Engines_Component_i *servant =
+ dynamic_cast<Engines_Component_i*>(_poa->reference_to_servant(iobject));
+ ASSERT(servant);
+ //SCRUTE(servant->pd_refCount);
+ servant->_remove_ref(); // compensate previous id_to_reference
+ //SCRUTE(servant->pd_refCount);
+ _listInstances_map[instanceName] = iobject;
+ _cntInstances_map[aGenRegisterName] += 1;
+ SCRUTE(aGenRegisterName);
+ SCRUTE(_cntInstances_map[aGenRegisterName]);
+ //SCRUTE(servant->pd_refCount);
+ bool ret_studyId = servant->setStudyId(studyId);
+ ASSERT(ret_studyId);
+
+ // --- register the engine under the name
+ // containerName(.dir)/instanceName(.object)
+
+ _NS->Register( iobject , component_registerName.c_str() ) ;
+ MESSAGE( component_registerName.c_str() << " bound" ) ;
+ }
+ catch (...)
{
- void * handle = (*im).second ;
- dlclose(handle) ;
- MESSAGE("dlclose " << (*im).first);
+ INFOS( "Container_i::createInstance exception catched" ) ;
}
- remove_map.clear() ;
- _numInstanceMutex.unlock() ;
- MESSAGE("remove_map.clear()");
+ return iobject._retn();
}
-void ActSigIntHandler() {
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+void Engines_Container_i::decInstanceCnt(string genericRegisterName)
+{
+ string aGenRegisterName =genericRegisterName;
+ MESSAGE("Engines_Container_i::decInstanceCnt " << aGenRegisterName);
+ ASSERT(_cntInstances_map[aGenRegisterName] > 0);
+ _numInstanceMutex.lock(); // lock to be alone
+ // (see finalize_removal, load_component_Library)
+ _cntInstances_map[aGenRegisterName] -= 1;
+ SCRUTE(_cntInstances_map[aGenRegisterName]);
+ if (_cntInstances_map[aGenRegisterName] == 0)
+ {
+ string impl_name =
+ Engines_Component_i::GetDynLibraryName(aGenRegisterName.c_str());
+ SCRUTE(impl_name);
+ void* handle = _library_map[impl_name];
+ ASSERT(handle);
+ _toRemove_map[impl_name] = handle;
+ }
+ _numInstanceMutex.unlock();
+}
+
+//=============================================================================
+/*!
+ * Retrieves only with container naming convention if it is a python container
+ */
+//=============================================================================
+
+bool Engines_Container_i::isPythonContainer(const char* ContainerName)
+{
+ bool ret=false;
+ int len=strlen(ContainerName);
+ if(len>=2)
+ if(strcmp(ContainerName+len-2,"Py")==0)
+ ret=true;
+ return ret;
+}
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+void ActSigIntHandler()
+{
+#ifndef WNT
struct sigaction SigIntAct ;
SigIntAct.sa_sigaction = &SigIntHandler ;
SigIntAct.sa_flags = SA_SIGINFO ;
- if ( sigaction( SIGINT | SIGUSR1 , &SigIntAct, NULL ) ) {
+#endif
+
+// DEBUG 03.02.2005 : the first parameter of sigaction is not a mask of signals
+// (SIGINT | SIGUSR1) :
+// it must be only one signal ===> one call for SIGINT
+// and an other one for SIGUSR1
+#ifndef WNT
+ if ( sigaction( SIGINT , &SigIntAct, NULL ) ) {
perror("SALOME_Container main ") ;
exit(0) ;
}
- else {
- INFOS(pthread_self() << "SigIntHandler activated") ;
+ if ( sigaction( SIGUSR1 , &SigIntAct, NULL ) ) {
+ perror("SALOME_Container main ") ;
+ exit(0) ;
}
+ //PAL9042 JR : during the execution of a Signal Handler (and of methods called through Signal Handlers)
+ // use of streams (and so on) should never be used because :
+ // streams of C++ are naturally thread-safe and use pthread_mutex_lock ===>
+ // A stream operation may be interrupted by a signal and if the Handler use stream we
+ // may have a "Dead-Lock" ===HangUp
+ //==INFOS is commented
+ // INFOS(pthread_self() << "SigIntHandler activated") ;
+#else
+ signal( SIGINT, SigIntHandler );
+ signal( SIGUSR1, SigIntHandler );
+#endif
+
}
void SetCpuUsed() ;
+#ifndef WNT
void SigIntHandler(int what , siginfo_t * siginfo ,
void * toto ) {
- MESSAGE(pthread_self() << "SigIntHandler what " << what << endl
- << " si_signo " << siginfo->si_signo << endl
- << " si_code " << siginfo->si_code << endl
- << " si_pid " << siginfo->si_pid) ;
+ //PAL9042 JR : during the execution of a Signal Handler (and of methods called through Signal Handlers)
+ // use of streams (and so on) should never be used because :
+ // streams of C++ are naturally thread-safe and use pthread_mutex_lock ===>
+ // A stream operation may be interrupted by a signal and if the Handler use stream we
+ // may have a "Dead-Lock" ===HangUp
+ //==MESSAGE is commented
+ // MESSAGE(pthread_self() << "SigIntHandler what " << what << endl
+ // << " si_signo " << siginfo->si_signo << endl
+ // << " si_code " << siginfo->si_code << endl
+ // << " si_pid " << siginfo->si_pid) ;
if ( _Sleeping ) {
_Sleeping = false ;
- MESSAGE("SigIntHandler END sleeping.") ;
+ // MESSAGE("SigIntHandler END sleeping.") ;
return ;
}
else {
}
else {
_Sleeping = true ;
- MESSAGE("SigIntHandler BEGIN sleeping.") ;
+ // MESSAGE("SigIntHandler BEGIN sleeping.") ;
int count = 0 ;
while( _Sleeping ) {
sleep( 1 ) ;
count += 1 ;
}
+ // MESSAGE("SigIntHandler LEAVE sleeping after " << count << " s.") ;
+ }
+ return ;
+ }
+}
+#else // Case WNT
+void SigIntHandler( int what ) {
+ MESSAGE( pthread_self() << "SigIntHandler what " << what << endl );
+ if ( _Sleeping ) {
+ _Sleeping = false ;
+ MESSAGE("SigIntHandler END sleeping.") ;
+ return ;
+ }
+ else {
+ ActSigIntHandler() ;
+ if ( what == SIGUSR1 ) {
+ SetCpuUsed() ;
+ }
+ else {
+ _Sleeping = true ;
+ MESSAGE("SigIntHandler BEGIN sleeping.") ;
+ int count = 0 ;
+ while( _Sleeping ) {
+ Sleep( 1000 ) ;
+ count += 1 ;
+ }
MESSAGE("SigIntHandler LEAVE sleeping after " << count << " s.") ;
}
return ;
}
}
+#endif
+
+//=============================================================================
+/*!
+ * CORBA method: Create one instance of componentName component
+ * and register it as genericRegisterName in naming service
+ */
+//=============================================================================
+
+// Engines::Component_ptr Engines_Container_i::instance( const char* genericRegisterName,
+// const char* componentName )
+// {
+// _numInstanceMutex.lock() ; // lock on the instance number
+// BEGIN_OF( "Container_i::instance " << componentName ) ;
+
+// string _genericRegisterName = genericRegisterName;
+// string component_registerName = _containerName + "/" + _genericRegisterName;
+
+// Engines::Component_var iobject = Engines::Component::_nil() ;
+
+// try
+// {
+// CORBA::Object_var obj = _NS->Resolve( component_registerName.c_str() ) ;
+// if (! CORBA::is_nil( obj ) )
+// {
+// MESSAGE( "Container_i::instance " << component_registerName.c_str() << " already registered" ) ;
+// iobject = Engines::Component::_narrow( obj ) ;
+// }
+// else
+// {
+// string _compo_name = componentName;
+// string _impl_name = "lib" + _compo_name + "Engine.so";
+// SCRUTE(_impl_name);
+
+// void* handle;
+// handle = dlopen( _impl_name.c_str() , RTLD_LAZY ) ;
+
+// if ( handle )
+// {
+// string factory_name = _compo_name + "Engine_factory";
+// SCRUTE(factory_name) ;
+
+// typedef PortableServer::ObjectId * (*FACTORY_FUNCTION)
+// (CORBA::ORB_ptr,
+// PortableServer::POA_ptr,
+// PortableServer::ObjectId *,
+// const char *,
+// const char *) ;
+// FACTORY_FUNCTION Component_factory = (FACTORY_FUNCTION) dlsym(handle, factory_name.c_str());
+
+// char *error ;
+// if ( (error = dlerror() ) == NULL)
+// {
+// // Instanciate required CORBA object
+// _numInstance++ ;
+// char _aNumI[12];
+// sprintf( _aNumI , "%d" , _numInstance ) ;
+// string instanceName = _compo_name + "_inst_" + _aNumI ;
+// SCRUTE(instanceName);
+
+// PortableServer::ObjectId * id ;
+// id = (Component_factory) ( _orb, _poa, _id, instanceName.c_str() ,
+// _genericRegisterName.c_str() ) ;
+// // get reference from id
+// obj = _poa->id_to_reference(*id);
+// iobject = Engines::Component::_narrow( obj ) ;
+
+// // register the engine under the name containerName.dir/genericRegisterName.object
+// _NS->Register( iobject , component_registerName.c_str() ) ;
+// MESSAGE( "Container_i::instance " << component_registerName.c_str() << " registered" ) ;
+// _handle_map[instanceName] = handle;
+// }
+// else
+// {
+// INFOS("Can't resolve symbol: " + factory_name);
+// SCRUTE(error);
+// }
+// }
+// else
+// {
+// INFOS("Can't load shared library : " << _impl_name);
+// INFOS("error dlopen: " << dlerror());
+// }
+// }
+// }
+// catch (...)
+// {
+// INFOS( "Container_i::instance exception caught" ) ;
+// }
+// END_OF("Container_i::instance");
+// _numInstanceMutex.unlock() ;
+// return Engines::Component::_duplicate(iobject);
+// }
-// Get the PID of the Container
+//=============================================================================
+/*!
+ * CORBA attribute: Machine Name (hostname without domain extensions)
+ */
+//=============================================================================
-CORBA::Long Engines_Container_i::getPID() {
- return (long)getpid();
-}
+// char* Engines_Container_i::machineName()
+// {
+// string s = GetHostname();
+// MESSAGE("Engines_Container_i::machineName " << s);
+// return CORBA::string_dup(s.c_str()) ;
+// }
-// Get the hostName of the Container
-char* Engines_Container_i::getHostName() {
- return((char*)(GetHostname().c_str()));
-}
