diff options
Diffstat (limited to 'ace/Object_Manager.cpp')
| -rw-r--r-- | ace/Object_Manager.cpp | 238 |
1 files changed, 110 insertions, 128 deletions
diff --git a/ace/Object_Manager.cpp b/ace/Object_Manager.cpp index c6f5e15b430..ea451fa2add 100644 --- a/ace/Object_Manager.cpp +++ b/ace/Object_Manager.cpp @@ -38,6 +38,8 @@ ACE_RCSID(ace, Object_Manager, "$Id$") # define ACE_APPLICATION_PREALLOCATED_ARRAY_DELETIONS #endif /* ACE_APPLICATION_PREALLOCATED_ARRAY_DELETIONS */ +u_int ACE_Object_Manager::init_fini_count_ = 0; + // Singleton pointer. ACE_Object_Manager *ACE_Object_Manager::instance_ = 0; @@ -164,59 +166,47 @@ ACE_Object_Manager::shutting_down (void) return ACE_Object_Manager::instance_ ? instance_->shutting_down_i () : 1; } -// Initialize an ACE_Object_Manager. There can be instances of this object -// other than The Instance. This can happen if a user creates one for some -// reason. All objects set up their per-object information and managed -// objects, but only The Instance sets up the static preallocated objects and -// the (static) ACE_Service_Config signal handler. int ACE_Object_Manager::init (void) { + ++init_fini_count_; + if (starting_up_i ()) { // First, indicate that the ACE_Object_Manager instance is being // initialized. object_manager_state_ = OBJ_MAN_INITIALIZING; - // Only The Instance sets up with ACE_OS_Object_Manager and initializes - // the preallocated objects. - if (this == instance_) - { - // Make sure that the ACE_OS_Object_Manager has been created, - // and register with it for chained fini (). - ACE_OS_Object_Manager::instance ()->next_ = this; + // Make sure that the ACE_OS_Object_Manager has been created, + // and register with it for chained fini (). + ACE_OS_Object_Manager::instance ()->next_ = this; - // Construct the ACE_Service_Config's signal handler. - ACE_NEW_RETURN (ace_service_config_sig_handler_, - ACE_Sig_Adapter (&ACE_Service_Config::handle_signal), -1); - ACE_Service_Config::signal_handler (ace_service_config_sig_handler_); + // Construct the ACE_Service_Config's signal handler. + ACE_NEW_RETURN (ace_service_config_sig_handler_, + ACE_Sig_Adapter (&ACE_Service_Config::handle_signal), -1); + ACE_Service_Config::signal_handler (ace_service_config_sig_handler_); - // Allocate the preallocated (hard-coded) object instances. - ACE_PREALLOCATE_OBJECT (ACE_SYNCH_RW_MUTEX, ACE_FILECACHE_LOCK) + // Allocate the preallocated (hard-coded) object instances. + ACE_PREALLOCATE_OBJECT (ACE_SYNCH_RW_MUTEX, ACE_FILECACHE_LOCK) # if defined (ACE_HAS_THREADS) - ACE_PREALLOCATE_OBJECT (ACE_Recursive_Thread_Mutex, - ACE_STATIC_OBJECT_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_Recursive_Thread_Mutex, + ACE_STATIC_OBJECT_LOCK) # endif /* ACE_HAS_THREADS */ # if defined (ACE_MT_SAFE) && (ACE_MT_SAFE != 0) - ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, - ACE_LOG_MSG_INSTANCE_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, - ACE_MT_CORBA_HANDLER_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, ACE_DUMP_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_Recursive_Thread_Mutex, - ACE_SIG_HANDLER_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_Null_Mutex, ACE_SINGLETON_NULL_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_Recursive_Thread_Mutex, - ACE_SINGLETON_RECURSIVE_THREAD_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, ACE_THREAD_EXIT_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_TOKEN_CONST::MUTEX, - ACE_TOKEN_MANAGER_CREATION_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_TOKEN_CONST::MUTEX, - ACE_TOKEN_INVARIANTS_CREATION_LOCK) - ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, - ACE_PROACTOR_EVENT_LOOP_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, ACE_LOG_MSG_INSTANCE_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, ACE_MT_CORBA_HANDLER_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, ACE_DUMP_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_Recursive_Thread_Mutex, + ACE_SIG_HANDLER_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_Null_Mutex, ACE_SINGLETON_NULL_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_Recursive_Thread_Mutex, + ACE_SINGLETON_RECURSIVE_THREAD_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_Thread_Mutex, ACE_THREAD_EXIT_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_TOKEN_CONST::MUTEX, + ACE_TOKEN_MANAGER_CREATION_LOCK) + ACE_PREALLOCATE_OBJECT (ACE_TOKEN_CONST::MUTEX, + ACE_TOKEN_INVARIANTS_CREATION_LOCK) # endif /* ACE_MT_SAFE */ - } // Do this after the allocation of ACE_STATIC_OBJECT_LOCK. It // shouldn't matter, but just in case @@ -224,23 +214,19 @@ ACE_Object_Manager::init (void) ACE_NEW_RETURN (registered_objects_, ACE_Unbounded_Queue<ACE_Cleanup_Info>, -1); - if (this == instance_) - { - // Hooks for preallocated objects and arrays provided by application. - ACE_APPLICATION_PREALLOCATED_OBJECT_DEFINITIONS - ACE_APPLICATION_PREALLOCATED_ARRAY_DEFINITIONS + // Hooks for preallocated objects and arrays provided by application. + ACE_APPLICATION_PREALLOCATED_OBJECT_DEFINITIONS + ACE_APPLICATION_PREALLOCATED_ARRAY_DEFINITIONS # if defined (ACE_HAS_TSS_EMULATION) - // Initialize the main thread's TS storage. - ACE_TSS_Emulation::tss_open (ts_storage_); + // Initialize the main thread's TS storage. + ACE_TSS_Emulation::tss_open (ts_storage_); # endif /* ACE_HAS_TSS_EMULATION */ - ACE_NEW_RETURN (preallocations_, ACE_Object_Manager_Preallocations, - -1); + ACE_NEW_RETURN (preallocations_, ACE_Object_Manager_Preallocations, -1); - // Open the main thread's ACE_Log_Msg. - (void) ACE_LOG_MSG; - } + // Open the main thread's ACE_Log_Msg. + (void) ACE_LOG_MSG; ACE_NEW_RETURN (default_mask_, ACE_Sig_Set (1), -1); @@ -268,25 +254,21 @@ ACE_Object_Manager::ACE_Object_Manager (void) , singleton_recursive_lock_ (0) # endif /* ACE_MT_SAFE */ { - // If instance_ was not 0, then another ACE_Object_Manager has - // already been instantiated (it is likely to be one initialized by way - // of library/DLL loading). Let this one go through construction in - // case there really is a good reason for it (like, ACE is a static/archive - // library, and this one is the non-static instance (with - // ACE_HAS_NONSTATIC_OBJECT_MANAGER, or the user has a good reason for - // creating a separate one) but the original one will be the one retrieved - // from calls to ACE_Object_Manager::instance(). - - // Be sure that no further instances are created via instance (). - if (instance_ == 0) - instance_ = this; + // If Instance_ was not 0, then another ACE_Object_Manager has + // already been instantiated. Because this might be the non-static + // instance (with ACE_HAS_NONSTATIC_OBJECT_MANAGER), use it and leak + // the old one. We can't destroy it, because the application might + // be using some of its resources, via static constructors. + + // Store the address of the instance so that instance () doesn't + // allocate a new one when called. + instance_ = this; init (); } ACE_Object_Manager::~ACE_Object_Manager (void) { - dynamically_allocated_ = 0; // Don't delete this again in fini() fini (); } @@ -304,7 +286,9 @@ ACE_Object_Manager::instance (void) ACE_NEW_RETURN (instance_pointer, ACE_Object_Manager, 0); ACE_ASSERT (instance_pointer == instance_); +#if defined (ACE_HAS_NONSTATIC_OBJECT_MANAGER) instance_pointer->dynamically_allocated_ = 1; +#endif /* ACE_HAS_NONSTATIC_OBJECT_MANAGER */ return instance_pointer; } @@ -575,16 +559,19 @@ ACE_Object_Manager::get_singleton_lock (ACE_RW_Thread_Mutex *&lock) // NOTE: this function needs to appear _after_ the // get_singleton_lock () functions in order to compile with // g++ 2.7.2.3. -// -// Clean up an ACE_Object_Manager. There can be instances of this object -// other than The Instance. This can happen if (on Win32) the ACE DLL -// causes one to be created, or if a user creates one for some reason. -// Only The Instance cleans up the static preallocated objects. All objects -// clean up their per-object information and managed objects. int ACE_Object_Manager::fini (void) { - if (shutting_down_i ()) + if (init_fini_count_ > 0) + { + if (--init_fini_count_ > 0) + // Wait for remaining fini () calls. + return 1; + } + else + return -1; + + if (instance_ == 0 || shutting_down_i ()) // Too late. Or, maybe too early. Either fini () has already // been called, or init () was never called. return -1; @@ -592,13 +579,20 @@ ACE_Object_Manager::fini (void) // No mutex here. Only the main thread should destroy the singleton // ACE_Object_Manager instance. - // First, indicate that this ACE_Object_Manager instance is being + // First, indicate that the ACE_Object_Manager instance is being // shut down. object_manager_state_ = OBJ_MAN_SHUTTING_DOWN; + ACE_Trace::stop_tracing (); + + ACE_Cleanup_Info info; + + // Close and possibly delete all service instances in the Service + // Repository. + ACE_Service_Config::fini_svcs (); + // Call all registered cleanup hooks, in reverse order of // registration. - ACE_Cleanup_Info info; while (registered_objects_ && registered_objects_->dequeue_head (info) != -1) { @@ -609,72 +603,60 @@ ACE_Object_Manager::fini (void) (*info.cleanup_hook_) (info.object_, info.param_); } - if (this == instance_) - { - delete preallocations_; - preallocations_ = 0; - - ACE_Trace::stop_tracing (); - - // Close and possibly delete all service instances in the Service - // Repository. - ACE_Service_Config::fini_svcs (); + // Close the main thread's TSS, including its Log_Msg instance. + ACE_OS::cleanup_tss (1 /* main thread */); - // Close the main thread's TSS, including its Log_Msg instance. - ACE_OS::cleanup_tss (1 /* main thread */); + // + // Note: Do not access Log Msg after this since it is gone + // - // - // Note: Do not access Log Msg after this since it is gone - // + // Unlink all services in the Service Repository and close/delete + // all ACE library services and singletons. + ACE_Service_Config::close (); - // Unlink all services in the Service Repository and close/delete - // all ACE library services and singletons. - ACE_Service_Config::close (); + delete preallocations_; + preallocations_ = 0; - // Close the ACE_Allocator. - ACE_Allocator::close_singleton (); + // Close the ACE_Allocator. + ACE_Allocator::close_singleton (); #if ! defined (ACE_HAS_STATIC_PREALLOCATION) - // Hooks for deletion of preallocated objects and arrays provided by - // application. - ACE_APPLICATION_PREALLOCATED_ARRAY_DELETIONS - ACE_APPLICATION_PREALLOCATED_OBJECT_DELETIONS + // Hooks for deletion of preallocated objects and arrays provided by + // application. + ACE_APPLICATION_PREALLOCATED_ARRAY_DELETIONS + ACE_APPLICATION_PREALLOCATED_OBJECT_DELETIONS - // Cleanup the dynamically preallocated arrays. - // (none) + // Cleanup the dynamically preallocated arrays. + // (none) - // Cleanup the dynamically preallocated objects. - ACE_DELETE_PREALLOCATED_OBJECT (ACE_SYNCH_RW_MUTEX, ACE_FILECACHE_LOCK) + // Cleanup the dynamically preallocated objects. + ACE_DELETE_PREALLOCATED_OBJECT (ACE_SYNCH_RW_MUTEX, ACE_FILECACHE_LOCK) #if defined (ACE_HAS_THREADS) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Recursive_Thread_Mutex, - ACE_STATIC_OBJECT_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_Recursive_Thread_Mutex, + ACE_STATIC_OBJECT_LOCK) #endif /* ACE_HAS_THREADS */ # if defined (ACE_MT_SAFE) && (ACE_MT_SAFE != 0) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, - ACE_LOG_MSG_INSTANCE_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, - ACE_MT_CORBA_HANDLER_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, ACE_DUMP_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Recursive_Thread_Mutex, - ACE_SIG_HANDLER_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Null_Mutex, - ACE_SINGLETON_NULL_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Recursive_Thread_Mutex, - ACE_SINGLETON_RECURSIVE_THREAD_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, ACE_THREAD_EXIT_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_TOKEN_CONST::MUTEX, - ACE_TOKEN_MANAGER_CREATION_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_TOKEN_CONST::MUTEX, - ACE_TOKEN_INVARIANTS_CREATION_LOCK) - ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, - ACE_PROACTOR_EVENT_LOOP_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, + ACE_LOG_MSG_INSTANCE_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, + ACE_MT_CORBA_HANDLER_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, ACE_DUMP_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_Recursive_Thread_Mutex, + ACE_SIG_HANDLER_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_Null_Mutex, ACE_SINGLETON_NULL_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_Recursive_Thread_Mutex, + ACE_SINGLETON_RECURSIVE_THREAD_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_Thread_Mutex, ACE_THREAD_EXIT_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_TOKEN_CONST::MUTEX, + ACE_TOKEN_MANAGER_CREATION_LOCK) + ACE_DELETE_PREALLOCATED_OBJECT (ACE_TOKEN_CONST::MUTEX, + ACE_TOKEN_INVARIANTS_CREATION_LOCK) # endif /* ACE_MT_SAFE */ #endif /* ! ACE_HAS_STATIC_PREALLOCATION */ #if defined (ACE_HAS_THREADS) - ACE_Static_Object_Lock::cleanup_lock (); + ACE_Static_Object_Lock::cleanup_lock (); #endif /* ACE_HAS_THREADS */ - } delete default_mask_; default_mask_ = 0; @@ -696,20 +678,20 @@ ACE_Object_Manager::fini (void) singleton_recursive_lock_ = 0; #endif /* ACE_MT_SAFE */ - // Indicate that this ACE_Object_Manager instance has been shut down. + // Indicate that the ACE_Object_Manager instance has been shut down. object_manager_state_ = OBJ_MAN_SHUT_DOWN; // Then, ensure that the ACE_OS_Object_Manager gets shut down. - if (this == instance_ && ACE_OS_Object_Manager::instance_) + if (ACE_OS_Object_Manager::instance_) ACE_OS_Object_Manager::instance_->fini (); +#if defined (ACE_HAS_NONSTATIC_OBJECT_MANAGER) if (dynamically_allocated_) { - delete this; + delete instance_; + instance_ = 0; } - - if (this == instance_) - instance_ = 0; +#endif /* ACE_HAS_NONSTATIC_OBJECT_MANAGER */ return 0; } |