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
124 // _NS = new SALOME_NamingService(_orb);
125 _NS = SINGLETON_<SALOME_NamingService>::Instance() ;
126 ASSERT(SINGLETON_<SALOME_NamingService>::IsAlreadyExisting()) ;
127 _NS->init_orb( orb ) ;
129 Engines::Container_ptr pCont
130 = Engines::Container::_narrow(_this());
131 SCRUTE(_containerName);
132 _NS->Register(pCont, _containerName.c_str());
137 Engines_Container_i::~Engines_Container_i()
139 MESSAGE("Container_i::~Container_i()");
142 char* Engines_Container_i::name()
144 return CORBA::string_dup(_containerName.c_str()) ;
147 char* Engines_Container_i::machineName()
149 string s = GetHostname();
150 MESSAGE("Engines_Container_i::machineName " << s);
151 return CORBA::string_dup(s.c_str()) ;
154 void Engines_Container_i::ping()
156 MESSAGE("Engines_Container_i::ping() pid "<< getpid());
159 // Kill current container
160 bool Engines_Container_i::Kill_impl() {
161 MESSAGE("Engines_Container_i::Kill() pid "<< getpid() << " containerName "
162 << _containerName.c_str() << " machineName "
163 << GetHostname().c_str());
167 // Launch a new container from the current container
168 Engines::Container_ptr Engines_Container_i::start_impl(
169 const char* ContainerName ) {
170 MESSAGE("start_impl argc " << _argc << " ContainerName " << ContainerName
171 << hex << this << dec) ;
172 _numInstanceMutex.lock() ; // lock on the instance number
174 CORBA::Object_var obj = Engines::Container::_nil() ;
177 string cont("/Containers/");
178 cont += machineName() ;
180 cont += ContainerName;
181 INFOS(machineName() << " start_impl unknown container " << cont.c_str()
182 << " try to Resolve" );
183 obj = _NS->Resolve( cont.c_str() );
184 nilvar = CORBA::is_nil( obj ) ;
186 INFOS(machineName() << " start_impl unknown container "
190 catch (ServiceUnreachable&) {
191 INFOS(machineName() << "Caught exception: Naming Service Unreachable");
194 INFOS(machineName() << "Caught unknown exception.");
197 _numInstanceMutex.unlock() ;
198 MESSAGE("start_impl container found without new launch") ;
199 return Engines::Container::_narrow(obj);
202 while ( _argv[ i ] ) {
203 MESSAGE(" argv" << i << " " << _argv[ i ]) ;
206 string shstr = string(getenv("KERNEL_ROOT_DIR")) + "/bin/salome/SALOME_Container ";
207 // string shstr( "./runSession SALOME_Container " ) ;
208 shstr += ContainerName ;
211 shstr += _argv[ 2 ] ;
213 shstr += _argv[ 3 ] ;
215 shstr += " > /tmp/" ;
216 shstr += ContainerName ;
217 shstr += ".log 2>&1 &" ;
218 MESSAGE("system(" << shstr << ")") ;
219 int status = system( shstr.c_str() ) ;
221 INFOS("Engines_Container_i::start_impl SALOME_Container failed (system command status -1)") ;
223 else if (status == 217) {
224 INFOS("Engines_Container_i::start_impl SALOME_Container failed (system command status 217)") ;
226 INFOS(machineName() << " Engines_Container_i::start_impl SALOME_Container launch done");
228 // pid_t pid = fork() ;
230 // string anExe( _argv[ 0 ] ) ;
231 // anExe += "runSession" ;
232 // char * args[ 6 ] ;
233 // args[ 0 ] = "runSession" ;
234 // args[ 1 ] = "SALOME_Container" ;
235 // args[ 2 ] = strdup( ContainerName ) ;
236 // args[ 3 ] = strdup( _argv[ 2 ] ) ;
237 // args[ 4 ] = strdup( _argv[ 3 ] ) ;
238 // args[ 5 ] = NULL ;
239 // MESSAGE("execl(" << anExe.c_str() << " , " << args[ 0 ] << " , "
240 // << args[ 1 ] << " , " << args[ 2 ] << " , " << args[ 3 ]
241 // << " , " << args[ 4 ] << ")") ;
242 // int status = execv( anExe.c_str() , args ) ;
243 // if (status == -1) {
244 // INFOS("Engines_Container_i::start_impl execl failed (system command status -1)") ;
245 // perror( "Engines_Container_i::start_impl execl error ") ;
248 // INFOS(machineName() << " Engines_Container_i::start_impl execl done");
253 obj = Engines::Container::_nil() ;
255 string cont("/Containers/");
256 cont += machineName() ;
258 cont += ContainerName;
261 while ( nilvar && count >= 0) {
263 obj = _NS->Resolve(cont.c_str());
264 nilvar = CORBA::is_nil( obj ) ;
266 INFOS(count << ". " << machineName()
267 << " start_impl unknown container " << cont.c_str());
271 _numInstanceMutex.unlock() ;
273 MESSAGE("start_impl container found after new launch of SALOME_Container") ;
275 return Engines::Container::_narrow(obj);
277 catch (ServiceUnreachable&) {
278 INFOS(machineName() << "Caught exception: Naming Service Unreachable");
281 INFOS(machineName() << "Caught unknown exception.");
283 _numInstanceMutex.unlock() ;
284 MESSAGE("start_impl container not found after new launch of SALOME_Container") ;
285 return Engines::Container::_nil() ;
288 Engines::Component_ptr Engines_Container_i::load_impl( const char* nameToRegister,
289 const char* componentName ) {
291 _numInstanceMutex.lock() ; // lock on the instance number
292 BEGIN_OF( "Container_i::load_impl " << componentName ) ;
295 sprintf( _aNumI , "%d" , _numInstance ) ;
297 string _impl_name = componentName;
298 string _nameToRegister = nameToRegister;
299 string instanceName = _nameToRegister + "_inst_" + _aNumI ;
300 //SCRUTE(instanceName);
302 //string absolute_impl_name = _library_path + "lib" + _impl_name + ".so";
303 string absolute_impl_name( _impl_name ) ;
304 SCRUTE(absolute_impl_name);
306 handle = dlopen( absolute_impl_name.c_str() , RTLD_LAZY ) ;
308 INFOS("Can't load shared library : " << absolute_impl_name);
309 INFOS("error dlopen: " << dlerror());
310 _numInstanceMutex.unlock() ;
311 return Engines::Component::_nil() ;
314 string factory_name = _nameToRegister + string("Engine_factory");
315 // SCRUTE(factory_name) ;
317 typedef PortableServer::ObjectId * (*FACTORY_FUNCTION)
319 PortableServer::POA_ptr,
320 PortableServer::ObjectId *,
323 FACTORY_FUNCTION Component_factory = (FACTORY_FUNCTION) dlsym(handle, factory_name.c_str());
326 if ( (error = dlerror() ) != NULL) {
327 INFOS("Can't resolve symbol: " + factory_name);
329 _numInstanceMutex.unlock() ;
330 return Engines::Component::_nil() ;
333 string component_registerName = _containerName + "/" + _nameToRegister;
334 Engines::Component_var iobject = Engines::Component::_nil() ;
336 CORBA::Object_var obj = _NS->Resolve( component_registerName.c_str() ) ;
337 if ( CORBA::is_nil( obj ) ) {
338 // Instanciate required CORBA object
339 PortableServer::ObjectId * id ;
340 id = (Component_factory) ( _orb, _poa, _id, instanceName.c_str() ,
341 _nameToRegister.c_str() ) ;
342 // get reference from id
343 obj = _poa->id_to_reference(*id);
344 iobject = Engines::Component::_narrow( obj ) ;
346 // _numInstanceMutex.lock() ; // lock on the add on handle_map (necessary ?)
347 // register the engine under the name containerName.dir/nameToRegister.object
348 _NS->Register( iobject , component_registerName.c_str() ) ;
349 MESSAGE( "Container_i::load_impl " << component_registerName.c_str() << " bound" ) ;
351 else { // JR : No ReBind !!!
352 MESSAGE( "Container_i::load_impl " << component_registerName.c_str() << " already bound" ) ;
353 iobject = Engines::Component::_narrow( obj ) ;
357 MESSAGE( "Container_i::load_impl catched" ) ;
360 //Jr _numInstanceMutex.lock() ; // lock on the add on handle_map (necessary ?)
361 handle_map[instanceName] = handle;
362 END_OF("Container_i::load_impl");
363 _numInstanceMutex.unlock() ;
364 return Engines::Component::_duplicate(iobject);
367 void Engines_Container_i::remove_impl(Engines::Component_ptr component_i)
369 ASSERT(! CORBA::is_nil(component_i));
370 string instanceName = component_i->instanceName() ;
371 MESSAGE("unload component " << instanceName);
372 component_i->destroy() ;
373 MESSAGE("test key handle_map");
374 _numInstanceMutex.lock() ; // lock on the remove on handle_map
375 if (handle_map[instanceName]) // if key does not exist, created & initialized null
377 remove_map[instanceName] = handle_map[instanceName] ;
379 else MESSAGE("pas d'entree handle_map");
380 handle_map.erase(instanceName) ;
381 _numInstanceMutex.unlock() ;
382 MESSAGE("contenu handle_map");
383 map<string, void *>::iterator im ;
384 for (im = handle_map.begin() ; im != handle_map.end() ; im ++)
386 MESSAGE("reste " << (*im).first);
390 void Engines_Container_i::finalize_removal()
392 MESSAGE("finalize unload : dlclose");
393 map<string, void *>::iterator im ;
394 _numInstanceMutex.lock() ; // lock on the explore remove_map & dlclose
395 for (im = remove_map.begin() ; im != remove_map.end() ; im ++)
397 void * handle = (*im).second ;
399 MESSAGE("dlclose " << (*im).first);
402 _numInstanceMutex.unlock() ;
403 MESSAGE("remove_map.clear()");
406 void ActSigIntHandler() {
407 struct sigaction SigIntAct ;
408 SigIntAct.sa_sigaction = &SigIntHandler ;
409 SigIntAct.sa_flags = SA_SIGINFO ;
410 if ( sigaction( SIGINT | SIGUSR1 , &SigIntAct, NULL ) ) {
411 perror("SALOME_Container main ") ;
415 INFOS(pthread_self() << "SigIntHandler activated") ;
421 void SigIntHandler(int what , siginfo_t * siginfo ,
423 MESSAGE(pthread_self() << "SigIntHandler what " << what << endl
424 << " si_signo " << siginfo->si_signo << endl
425 << " si_code " << siginfo->si_code << endl
426 << " si_pid " << siginfo->si_pid) ;
429 INFOS("SigIntHandler END sleeping.")
430 MESSAGE("SigIntHandler END sleeping.") ;
435 if ( siginfo->si_signo == SIGUSR1 ) {
440 INFOS("SigIntHandler BEGIN sleeping.")
441 MESSAGE("SigIntHandler BEGIN sleeping.") ;
447 INFOS("SigIntHandler LEAVE sleeping after " << count << " s.")
448 MESSAGE("SigIntHandler LEAVE sleeping after " << count << " s.") ;
454 // Get the PID of the Container
456 long Engines_Container_i::getPID() {
460 // Get the hostName of the Container
462 char* Engines_Container_i::getHostName() {
463 return((char*)(GetHostname().c_str()));