1 // SALOME Container : implementation of container and engine for Kernel
3 // Copyright (C) 2003 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.
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.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
24 // File : Container_i.cxx
25 // Author : Paul RASCLE, EDF - MARC TAJCHMAN, CEA
29 #include <SALOMEconfig.h>
30 #include CORBA_SERVER_HEADER(SALOME_Component)
31 #include "SALOME_Container_i.hxx"
32 #include "SALOME_NamingService.hxx"
33 #include "Utils_SINGLETON.hxx"
39 #include "utilities.h"
42 bool _Sleeping = false ;
44 // Needed by multi-threaded Python
49 // Containers with name FactoryServer are started via rsh in LifeCycleCORBA
50 // Other Containers are started via start_impl of FactoryServer
52 extern "C" {void ActSigIntHandler() ; }
53 extern "C" {void SigIntHandler(int, siginfo_t *, void *) ; }
55 Engines_Container_i::Engines_Container_i () :
60 Engines_Container_i::Engines_Container_i (CORBA::ORB_ptr orb,
61 PortableServer::POA_ptr poa,
63 int argc , char* argv[],
68 _pid = (long)getpid();
78 int i = strlen( _argv[ 0 ] ) - 1 ;
80 if ( _argv[ 0 ][ i ] == '/' ) {
81 _argv[ 0 ][ i+1 ] = '\0' ;
86 string hostname = GetHostname();
87 MESSAGE(hostname << " " << getpid() << " Engines_Container_i starting argc "
88 << _argc << " Thread " << pthread_self() ) ;
90 while ( _argv[ i ] ) {
91 MESSAGE(" argv" << i << " " << _argv[ i ]) ;
95 MESSAGE("SALOME_Container usage : SALOME_Container ServerName -ORBInitRef NameService=corbaname::hostname:tcpipPortNumber") ;
101 _containerName = "/Containers/";
102 if (strlen(containerName)== 0)
104 _containerName += hostname;
108 _containerName += hostname;
109 _containerName += "/" ;
110 _containerName += containerName;
113 _orb = CORBA::ORB::_duplicate(orb) ;
114 _poa = PortableServer::POA::_duplicate(poa) ;
115 // Pour les containers paralleles: il ne faut pas activer le container generique, mais le container specialise
117 MESSAGE("activate object");
118 _id = _poa->activate_object(this);
121 // Pour les containers paralleles: il ne faut pas enregistrer le container generique, mais le container specialise
123 // _NS = new SALOME_NamingService(_orb);
124 _NS = SINGLETON_<SALOME_NamingService>::Instance() ;
125 ASSERT(SINGLETON_<SALOME_NamingService>::IsAlreadyExisting()) ;
126 _NS->init_orb( orb ) ;
128 Engines::Container_ptr pCont
129 = Engines::Container::_narrow(_this());
130 SCRUTE(_containerName);
131 _NS->Register(pCont, _containerName.c_str());
135 Engines_Container_i::~Engines_Container_i()
137 MESSAGE("Container_i::~Container_i()");
140 char* Engines_Container_i::name()
142 return CORBA::string_dup(_containerName.c_str()) ;
145 char* Engines_Container_i::machineName()
147 string s = GetHostname();
148 MESSAGE("Engines_Container_i::machineName " << s);
149 return CORBA::string_dup(s.c_str()) ;
152 void Engines_Container_i::ping()
154 MESSAGE("Engines_Container_i::ping() pid "<< getpid());
157 //! Kill current container
158 bool Engines_Container_i::Kill_impl() {
159 MESSAGE("Engines_Container_i::Kill() pid "<< getpid() << " containerName "
160 << _containerName.c_str() << " machineName "
161 << GetHostname().c_str());
165 //! Launch a new container from the current container
166 Engines::Container_ptr Engines_Container_i::start_impl(
167 const char* ContainerName ) {
168 MESSAGE("start_impl argc " << _argc << " ContainerName " << ContainerName
169 << hex << this << dec) ;
170 _numInstanceMutex.lock() ; // lock on the instance number
172 CORBA::Object_var obj = Engines::Container::_nil() ;
175 string cont("/Containers/");
176 cont += machineName() ;
178 cont += ContainerName;
179 INFOS(machineName() << " start_impl unknown container " << cont.c_str()
180 << " try to Resolve" );
181 obj = _NS->Resolve( cont.c_str() );
182 nilvar = CORBA::is_nil( obj ) ;
184 INFOS(machineName() << " start_impl unknown container "
188 catch (ServiceUnreachable&) {
189 INFOS(machineName() << "Caught exception: Naming Service Unreachable");
192 INFOS(machineName() << "Caught unknown exception.");
195 _numInstanceMutex.unlock() ;
196 MESSAGE("start_impl container found without new launch") ;
197 return Engines::Container::_narrow(obj);
200 while ( _argv[ i ] ) {
201 MESSAGE(" argv" << i << " " << _argv[ i ]) ;
204 string shstr = string(getenv("KERNEL_ROOT_DIR")) + "/bin/salome/SALOME_Container ";
205 // string shstr( "./runSession SALOME_Container " ) ;
206 shstr += ContainerName ;
209 shstr += _argv[ 2 ] ;
211 shstr += _argv[ 3 ] ;
213 shstr += " > /tmp/" ;
214 shstr += ContainerName ;
215 shstr += ".log 2>&1 &" ;
216 MESSAGE("system(" << shstr << ")") ;
217 int status = system( shstr.c_str() ) ;
219 INFOS("Engines_Container_i::start_impl SALOME_Container failed (system command status -1)") ;
221 else if (status == 217) {
222 INFOS("Engines_Container_i::start_impl SALOME_Container failed (system command status 217)") ;
224 INFOS(machineName() << " Engines_Container_i::start_impl SALOME_Container launch done");
226 // pid_t pid = fork() ;
228 // string anExe( _argv[ 0 ] ) ;
229 // anExe += "runSession" ;
230 // char * args[ 6 ] ;
231 // args[ 0 ] = "runSession" ;
232 // args[ 1 ] = "SALOME_Container" ;
233 // args[ 2 ] = strdup( ContainerName ) ;
234 // args[ 3 ] = strdup( _argv[ 2 ] ) ;
235 // args[ 4 ] = strdup( _argv[ 3 ] ) ;
236 // args[ 5 ] = NULL ;
237 // MESSAGE("execl(" << anExe.c_str() << " , " << args[ 0 ] << " , "
238 // << args[ 1 ] << " , " << args[ 2 ] << " , " << args[ 3 ]
239 // << " , " << args[ 4 ] << ")") ;
240 // int status = execv( anExe.c_str() , args ) ;
241 // if (status == -1) {
242 // INFOS("Engines_Container_i::start_impl execl failed (system command status -1)") ;
243 // perror( "Engines_Container_i::start_impl execl error ") ;
246 // INFOS(machineName() << " Engines_Container_i::start_impl execl done");
251 obj = Engines::Container::_nil() ;
253 string cont("/Containers/");
254 cont += machineName() ;
256 cont += ContainerName;
259 while ( nilvar && count >= 0) {
261 obj = _NS->Resolve(cont.c_str());
262 nilvar = CORBA::is_nil( obj ) ;
264 INFOS(count << ". " << machineName()
265 << " start_impl unknown container " << cont.c_str());
269 _numInstanceMutex.unlock() ;
271 MESSAGE("start_impl container found after new launch of SALOME_Container") ;
273 return Engines::Container::_narrow(obj);
275 catch (ServiceUnreachable&) {
276 INFOS(machineName() << "Caught exception: Naming Service Unreachable");
279 INFOS(machineName() << "Caught unknown exception.");
281 _numInstanceMutex.unlock() ;
282 MESSAGE("start_impl container not found after new launch of SALOME_Container") ;
283 return Engines::Container::_nil() ;
286 Engines::Component_ptr Engines_Container_i::load_impl( const char* nameToRegister,
287 const char* componentName ) {
289 _numInstanceMutex.lock() ; // lock on the instance number
290 BEGIN_OF( "Container_i::load_impl " << componentName ) ;
293 sprintf( _aNumI , "%d" , _numInstance ) ;
295 string _impl_name = componentName;
296 string _nameToRegister = nameToRegister;
297 string instanceName = _nameToRegister + "_inst_" + _aNumI ;
298 //SCRUTE(instanceName);
300 //string absolute_impl_name = _library_path + "lib" + _impl_name + ".so";
301 string absolute_impl_name( _impl_name ) ;
302 SCRUTE(absolute_impl_name);
304 handle = dlopen( absolute_impl_name.c_str() , RTLD_LAZY ) ;
306 INFOS("Can't load shared library : " << absolute_impl_name);
307 INFOS("error dlopen: " << dlerror());
308 _numInstanceMutex.unlock() ;
309 return Engines::Component::_nil() ;
312 string factory_name = _nameToRegister + string("Engine_factory");
313 // SCRUTE(factory_name) ;
315 typedef PortableServer::ObjectId * (*FACTORY_FUNCTION)
317 PortableServer::POA_ptr,
318 PortableServer::ObjectId *,
321 FACTORY_FUNCTION Component_factory = (FACTORY_FUNCTION) dlsym(handle, factory_name.c_str());
324 if ( (error = dlerror() ) != NULL) {
325 INFOS("Can't resolve symbol: " + factory_name);
327 _numInstanceMutex.unlock() ;
328 return Engines::Component::_nil() ;
331 string component_registerName = _containerName + "/" + _nameToRegister;
332 Engines::Component_var iobject = Engines::Component::_nil() ;
334 CORBA::Object_var obj = _NS->Resolve( component_registerName.c_str() ) ;
335 if ( CORBA::is_nil( obj ) ) {
336 // Instanciate required CORBA object
337 PortableServer::ObjectId * id ;
338 id = (Component_factory) ( _orb, _poa, _id, instanceName.c_str() ,
339 _nameToRegister.c_str() ) ;
340 // get reference from id
341 obj = _poa->id_to_reference(*id);
342 iobject = Engines::Component::_narrow( obj ) ;
344 // _numInstanceMutex.lock() ; // lock on the add on handle_map (necessary ?)
345 // register the engine under the name containerName.dir/nameToRegister.object
346 _NS->Register( iobject , component_registerName.c_str() ) ;
347 MESSAGE( "Container_i::load_impl " << component_registerName.c_str() << " bound" ) ;
349 else { // JR : No ReBind !!!
350 MESSAGE( "Container_i::load_impl " << component_registerName.c_str() << " already bound" ) ;
351 iobject = Engines::Component::_narrow( obj ) ;
355 INFOS( "Container_i::load_impl catched" ) ;
358 //Jr _numInstanceMutex.lock() ; // lock on the add on handle_map (necessary ?)
359 handle_map[instanceName] = handle;
360 END_OF("Container_i::load_impl");
361 _numInstanceMutex.unlock() ;
362 return Engines::Component::_duplicate(iobject);
365 void Engines_Container_i::remove_impl(Engines::Component_ptr component_i)
367 ASSERT(! CORBA::is_nil(component_i));
368 string instanceName = component_i->instanceName() ;
369 MESSAGE("unload component " << instanceName);
370 component_i->destroy() ;
371 MESSAGE("test key handle_map");
372 _numInstanceMutex.lock() ; // lock on the remove on handle_map
373 if (handle_map[instanceName]) // if key does not exist, created & initialized null
375 remove_map[instanceName] = handle_map[instanceName] ;
377 else MESSAGE("pas d'entree handle_map");
378 handle_map.erase(instanceName) ;
379 _numInstanceMutex.unlock() ;
380 MESSAGE("contenu handle_map");
381 map<string, void *>::iterator im ;
382 for (im = handle_map.begin() ; im != handle_map.end() ; im ++)
384 MESSAGE("reste " << (*im).first);
388 void Engines_Container_i::finalize_removal()
390 MESSAGE("finalize unload : dlclose");
391 map<string, void *>::iterator im ;
392 _numInstanceMutex.lock() ; // lock on the explore remove_map & dlclose
393 for (im = remove_map.begin() ; im != remove_map.end() ; im ++)
395 void * handle = (*im).second ;
397 MESSAGE("dlclose " << (*im).first);
400 _numInstanceMutex.unlock() ;
401 MESSAGE("remove_map.clear()");
404 void ActSigIntHandler() {
405 struct sigaction SigIntAct ;
406 SigIntAct.sa_sigaction = &SigIntHandler ;
407 SigIntAct.sa_flags = SA_SIGINFO ;
408 if ( sigaction( SIGINT | SIGUSR1 , &SigIntAct, NULL ) ) {
409 perror("SALOME_Container main ") ;
413 INFOS(pthread_self() << "SigIntHandler activated") ;
419 void SigIntHandler(int what , siginfo_t * siginfo ,
421 MESSAGE(pthread_self() << "SigIntHandler what " << what << endl
422 << " si_signo " << siginfo->si_signo << endl
423 << " si_code " << siginfo->si_code << endl
424 << " si_pid " << siginfo->si_pid) ;
427 MESSAGE("SigIntHandler END sleeping.") ;
432 if ( siginfo->si_signo == SIGUSR1 ) {
437 MESSAGE("SigIntHandler BEGIN sleeping.") ;
443 MESSAGE("SigIntHandler LEAVE sleeping after " << count << " s.") ;
449 // Get the PID of the Container
451 long Engines_Container_i::getPID() {
455 // Get the hostName of the Container
457 char* Engines_Container_i::getHostName() {
458 return((char*)(GetHostname().c_str()));