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Diffstat (limited to 'TAO/tao/PortableServer/POAManager.cpp')
-rw-r--r-- | TAO/tao/PortableServer/POAManager.cpp | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/TAO/tao/PortableServer/POAManager.cpp b/TAO/tao/PortableServer/POAManager.cpp new file mode 100644 index 00000000000..19afbbae22e --- /dev/null +++ b/TAO/tao/PortableServer/POAManager.cpp @@ -0,0 +1,263 @@ +// $Id$ + +#include "POAManager.h" +#include "POA.h" +#include "poa_macros.h" +#include "tao/Server_Strategy_Factory.h" + +#if !defined (__ACE_INLINE__) +# include "POAManager.i" +#endif /* ! __ACE_INLINE__ */ + +TAO_POA_Manager::TAO_POA_Manager (TAO_Object_Adapter &object_adapter) + : state_ (PortableServer::POAManager::HOLDING), + lock_ (object_adapter.lock ()), + poa_collection_ (), + object_adapter_ (object_adapter) +{ +} + +TAO_POA_Manager::~TAO_POA_Manager (void) +{ +} + +void +TAO_POA_Manager::activate_i (CORBA::Environment &ACE_TRY_ENV) + ACE_THROW_SPEC ((CORBA::SystemException, + PortableServer::POAManager::AdapterInactive)) +{ + // This operation changes the state of the POA manager to active. If + // issued while the POA manager is in the inactive state, the + // AdapterInactive exception is raised. Entering the active state + // enables the associated POAs to process requests. + + if (this->state_ == PortableServer::POAManager::INACTIVE) + { + ACE_THROW (PortableServer::POAManager::AdapterInactive ()); + } + else + { + this->state_ = PortableServer::POAManager::ACTIVE; + } +} + +void +TAO_POA_Manager::deactivate_i (CORBA::Boolean etherealize_objects, + CORBA::Boolean wait_for_completion, + CORBA::Environment &ACE_TRY_ENV) + ACE_THROW_SPEC ((CORBA::SystemException, + PortableServer::POAManager::AdapterInactive)) +{ + // Is the <wait_for_completion> semantics for this thread correct? + TAO_POA::check_for_valid_wait_for_completions (wait_for_completion, + ACE_TRY_ENV); + ACE_CHECK; + + // This operation changes the state of the POA manager to + // inactive. If issued while the POA manager is in the inactive + // state, the AdapterInactive exception is raised. Entering the + // inactive state causes the associated POAs to reject requests that + // have not begun to be executed as well as any new requests. + + if (this->state_ == PortableServer::POAManager::INACTIVE) + { + ACE_THROW (PortableServer::POAManager::AdapterInactive ()); + } + else + { + this->state_ = PortableServer::POAManager::INACTIVE; + } + + // After changing the state, if the etherealize_objects parameter is: + // + // a) TRUE - the POA manager will cause all associated POAs that + // have the RETAIN and USE_SERVANT_MANAGER policies to perform the + // etherealize operation on the associated servant manager for all + // active objects. + // + // b) FALSE - the etherealize operation is not called. The purpose + // is to provide developers with a means to shut down POAs in a + // crisis (for example, unrecoverable error) situation. + + // If the wait_for_completion parameter is FALSE, this operation + // will return immediately after changing the state. If the + // parameter is TRUE and the current thread is not in an invocation + // context dispatched by some POA belonging to the same ORB as this + // POA, this operation does not return until there are no actively + // executing requests in any of the POAs associated with this POA + // manager (that is, all requests that were started prior to the + // state change have completed) and, in the case of a TRUE + // etherealize_objects, all invocations of etherealize have + // completed for POAs having the RETAIN and USE_SERVANT_MANAGER + // policies. If the parameter is TRUE and the current thread is in + // an invocation context dispatched by some POA belonging to the + // same ORB as this POA the BAD_INV_ORDER exception is raised and + // the state is not changed. + + for (POA_COLLECTION::iterator iterator = this->poa_collection_.begin (); + iterator != this->poa_collection_.end (); + ++iterator) + { + TAO_POA *poa = *iterator; + poa->deactivate_all_objects_i (etherealize_objects, + wait_for_completion, + ACE_TRY_ENV); + ACE_CHECK; + } + + // If the ORB::shutdown operation is called, it makes a call on + // deactivate with a TRUE etherealize_objects parameter for each POA + // manager known in the process; the wait_for_completion parameter + // to deactivate will be the same as the similarly named parameter + // of ORB::shutdown. +} + +#if (TAO_HAS_MINIMUM_POA == 0) + +void +TAO_POA_Manager::hold_requests_i (CORBA::Boolean wait_for_completion, + CORBA::Environment &ACE_TRY_ENV) + ACE_THROW_SPEC ((CORBA::SystemException, + PortableServer::POAManager::AdapterInactive)) +{ + // Is the <wait_for_completion> semantics for this thread correct? + TAO_POA::check_for_valid_wait_for_completions (wait_for_completion, + ACE_TRY_ENV); + ACE_CHECK; + + // This operation changes the state of the POA manager to + // holding. If issued while the POA manager is in the inactive + // state, the AdapterInactive exception is raised. Entering the + // holding state causes the associated POAs to queue incoming + // requests. Any requests that have been queued but have not + // started executing will continue to be queued while in the holding + // state. + + if (this->state_ == PortableServer::POAManager::INACTIVE) + { + ACE_THROW (PortableServer::POAManager::AdapterInactive ()); + } + else + { + this->state_ = PortableServer::POAManager::HOLDING; + } + + // If the wait_for_completion parameter is FALSE, this operation + // returns immediately after changing the state. If the parameter is + // TRUE and the current thread is not in an invocation context + // dispatched by some POA belonging to the same ORB as this POA, + // this operation does not return until either there are no actively + // executing requests in any of the POAs associated with this POA + // manager (that is, all requests that were started prior to the + // state change have completed) or the state of the POA manager is + // changed to a state other than holding. If the parameter is TRUE + // and the current thread is in an invocation context dispatched by + // some POA belonging to the same ORB as this POA the BAD_INV_ORDER + // exception is raised and the state is not changed. + + if (wait_for_completion) + { + for (POA_COLLECTION::iterator iterator = this->poa_collection_.begin (); + iterator != this->poa_collection_.end (); + ++iterator) + { + TAO_POA *poa = *iterator; + poa->wait_for_completions (wait_for_completion, + ACE_TRY_ENV); + ACE_CHECK; + } + } +} + +void +TAO_POA_Manager::discard_requests_i (CORBA::Boolean wait_for_completion, + CORBA::Environment &ACE_TRY_ENV) + ACE_THROW_SPEC ((CORBA::SystemException, + PortableServer::POAManager::AdapterInactive)) +{ + // Is the <wait_for_completion> semantics for this thread correct? + TAO_POA::check_for_valid_wait_for_completions (wait_for_completion, + ACE_TRY_ENV); + ACE_CHECK; + + // This operation changes the state of the POA manager to + // discarding. If issued while the POA manager is in the inactive + // state, the AdapterInactive exception is raised. Entering the + // discarding state causes the associated POAs to discard incoming + // requests. In addition, any requests that have been queued but + // have not started executing are discarded. When a request is + // discarded, a TRANSIENT system exception is returned to the + // client. + + if (this->state_ == PortableServer::POAManager::INACTIVE) + { + ACE_THROW (PortableServer::POAManager::AdapterInactive ()); + } + else + { + this->state_ = PortableServer::POAManager::DISCARDING; + } + + // If the wait_for_completion parameter is FALSE, this operation + // returns immediately after changing the state. If the + // parameter is TRUE and the current thread is not in an + // invocation context dispatched by some POA belonging to the + // same ORB as this POA, this operation does not return until + // either there are no actively executing requests in any of the + // POAs associated with this POA manager (that is, all requests + // that were started prior to the state change have completed) + // or the state of the POA manager is changed to a state other + // than discarding. If the parameter is TRUE and the current + // thread is in an invocation context dispatched by some POA + // belonging to the same ORB as this POA the BAD_INV_ORDER + // exception is raised and the state is not changed. + + if (wait_for_completion) + { + for (POA_COLLECTION::iterator iterator = this->poa_collection_.begin (); + iterator != this->poa_collection_.end (); + ++iterator) + { + TAO_POA *poa = *iterator; + poa->wait_for_completions (wait_for_completion, + ACE_TRY_ENV); + ACE_CHECK; + } + } +} + +#endif /* TAO_HAS_MINIMUM_POA == 0 */ + +int +TAO_POA_Manager::remove_poa (TAO_POA *poa) +{ + int result = this->poa_collection_.remove (poa); + + if (result == 0) + { + if (this->poa_collection_.is_empty ()) + { + CORBA::release (this); + } + } + + return result; +} + +int +TAO_POA_Manager::register_poa (TAO_POA *poa) +{ + return this->poa_collection_.insert (poa); +} + +#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION) + +template class ACE_Unbounded_Set<TAO_POA *>; +template class ACE_Unbounded_Set_Iterator<TAO_POA *>; + +#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA) + +#pragma instantiate ACE_Unbounded_Set<TAO_POA *> +#pragma instantiate ACE_Unbounded_Set_Iterator<TAO_POA *> + +#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */ |