diff options
Diffstat (limited to 'TAO/tao/Servant_Base.h')
| -rw-r--r-- | TAO/tao/Servant_Base.h | 174 |
1 files changed, 21 insertions, 153 deletions
diff --git a/TAO/tao/Servant_Base.h b/TAO/tao/Servant_Base.h index d4bcae36244..b5676694496 100644 --- a/TAO/tao/Servant_Base.h +++ b/TAO/tao/Servant_Base.h @@ -1,4 +1,3 @@ - // This may look like C, but it's really -*- C++ -*- // $Id$ @@ -26,37 +25,28 @@ class TAO_Operation_Table; class TAO_Export TAO_ServantBase { // = TITLE - // Base class for skeletons and servants. + // Base class for skeletons and servants. // // = DESCRIPTION - // The POA spec requires that all servants inherit from this - // class. + // The POA spec requires that all servants inherit from this + // class. public: friend class TAO_POA; - friend class TAO_Object_Adapter; friend class CORBA_Object; virtual ~TAO_ServantBase (void); - // Destructor. - - virtual PortableServer::POA_ptr _default_POA (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); - // Returns the default POA for this servant. - - virtual CORBA::Boolean _is_a (const char* logical_type_id, - CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); - // Local implementation of the CORBA::Object::_is_a method. + // destructor - virtual CORBA::Boolean _non_existent (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); - // Default <_non_existent>: always returns false. + TAO_ServantBase &operator= (const TAO_ServantBase &); + // assignment operator. - // = Reference counting hooks: no-ops by default. - virtual void _add_ref (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); - virtual void _remove_ref (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); + virtual PortableServer::POA_ptr _default_POA (CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()); + // Returns the default POA for this servant. virtual void *_downcast (const char *repository_id) = 0; // Get the correct vtable. - virtual TAO_Stub *_create_stub (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); + virtual STUB_Object *_create_stub (CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()); // This is an auxiliar method for _this() and _narrow(). protected: @@ -66,12 +56,13 @@ protected: TAO_ServantBase (const TAO_ServantBase &); // Copy constructor, protected so no instances can be created. - TAO_ServantBase &operator= (const TAO_ServantBase &); - // assignment operator. + virtual CORBA::Boolean _is_a (const char* logical_type_id, + CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()); + // Local implementation of the CORBA::Object::_is_a method. virtual void _dispatch (CORBA::ServerRequest &request, void *context, - CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()) = 0; + CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()) = 0; // Dispatches a request to the object: find the operation, cast the // type to the most derived type, demarshall all the parameters from // the request and finally invokes the operation, storing the @@ -79,8 +70,7 @@ protected: // <request>. virtual int _find (const char *opname, - TAO_Skeleton &skelfunc, - const unsigned int length = 0); + TAO_Skeleton &skelfunc); // Find an operation in the operation table. virtual int _bind (const char *opname, @@ -88,129 +78,11 @@ protected: // Register a CORBA IDL operation name. virtual const char *_interface_repository_id (void) const = 0; - // Get this interface's repository id (TAO specific). - - // = Should be protected/private, but a nested class needs it. - -public: - ACE_SYNCH_MUTEX &_single_threaded_poa_lock (void); - // Access to the single threaded poa lock. - -protected: - void _increment_single_threaded_poa_lock_count (void); - // New single threaded POA wants to use this lock. - - void _decrement_single_threaded_poa_lock_count (void); - // Single threaded POA is no longer interested in this lock. + // Get this interface's repository id. TAO_Operation_Table *optable_; // The operation table for this servant, it is initialized by the // most derived class. - - ACE_SYNCH_MUTEX *single_threaded_poa_lock_; - // Lock for single threaded POAs. - - u_long single_threaded_poa_lock_count_; - // Reference count for lock. -}; - -class TAO_Export TAO_RefCountServantBase : public virtual TAO_ServantBase -{ - // = TITLE - // Reference counting mix-in class. - // - // = DESCRIPTION - // The RefCountServantBase mix-in class overrides the inherited - // _add_ref and _remove_ref functions it inherits from - // ServantBase, implementing them to provide true reference - // counting. An instance of a servant class derived from - // RefCountServantBase initially has a reference count of - // one. Invoking _add_ref on the servant instance increases its - // reference count by one. Invoking _remove_ref on the servant - // instance decreases its reference count by one; if the - // resulting reference count equals zero, _remove_ref invokes - // delete on its this pointer in order to destroy the - // servant. For ORBs that operate in multi-threaded - // environments, the implementations of _add_ref and _remove_ref - // that the RefCountServantBase class provides shall be - // thread-safe. - // - // Like ServantBase, RefCountServantBase supports copy - // construction and the default assignment operation. Copy - // construction always sets the reference count of the new - // servant instance to one. The default assignment - // implementation merely returns *this and does not affect the - // reference count. - -public: - - ~TAO_RefCountServantBase (void); - // Destructor. - - virtual void _add_ref (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); - // Increase reference count by one. - - virtual void _remove_ref (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); - // Decreases reference count by one; if the resulting reference - // count equals zero, _remove_ref invokes delete on its this pointer - // in order to destroy the servant. - -protected: - - TAO_RefCountServantBase (void); - // Constructor: initial reference count is one. - - TAO_RefCountServantBase (const TAO_RefCountServantBase &); - // Copy Constructor: Always sets the reference count of the new - // servant instance to one. - - TAO_RefCountServantBase &operator= (const TAO_RefCountServantBase &); - // The default assignment implementation merely returns *this and - // does not affect the reference count. - -private: - - ACE_Atomic_Op<ACE_SYNCH_MUTEX, CORBA::ULong> ref_count_; - // Reference counter. -}; - -class TAO_Export TAO_ServantBase_var -{ - // = TITLE - // Auto pointer for reference counting servants. - // - // = DESCRIPTION - // For the convenience of automatically managing servant - // reference counts, the PortableServer namespace also provides - // the ServantBase_var class. This class behaves similarly to - // _var classes for object references (see Section 20.3.1). - -public: - TAO_ServantBase_var (void); - - TAO_ServantBase_var (TAO_ServantBase *p); - - TAO_ServantBase_var (const TAO_ServantBase_var &b); - - ~TAO_ServantBase_var (void); - - TAO_ServantBase_var &operator= (TAO_ServantBase *p); - - TAO_ServantBase_var &operator= (const TAO_ServantBase_var &b); - - TAO_ServantBase *operator-> () const; - - TAO_ServantBase *in (void) const; - - TAO_ServantBase *&inout (void); - - TAO_ServantBase *&out (void); - - TAO_ServantBase *_retn (void); - -private: - - TAO_ServantBase *ptr_; }; class TAO_Export TAO_Servant_Hash @@ -225,13 +97,11 @@ class TAO_Export TAO_Local_ServantBase : public TAO_ServantBase // = TITLE // Base class for local skeletons and servants. protected: - TAO_Stub *_create_stub (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); + STUB_Object *_create_stub (CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()); // This is an auxiliar method for _this(). Make sure *not* to // register with the default POA }; -#if !defined (TAO_HAS_MINIMUM_CORBA) - class TAO_Export TAO_DynamicImplementation : public virtual TAO_ServantBase { // = TITLE @@ -244,19 +114,19 @@ class TAO_Export TAO_DynamicImplementation : public virtual TAO_ServantBase // circumstances may lead to unpredictable results. public: virtual void invoke (CORBA::ServerRequest_ptr request, - CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()) = 0; + CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()) = 0; // The invoke() method receives requests issued to any CORBA object // incarnated by the DSI servant and performs the processing // necessary to execute the request. virtual CORBA::RepositoryId _primary_interface (const PortableServer::ObjectId &oid, PortableServer::POA_ptr poa, - CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()) = 0; + CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()) = 0; // The _primary_interface() method receives an ObjectId value and a // POA_ptr as input parameters and returns a valid RepositoryId // representing the most-derived interface for that oid. - CORBA::Object_ptr _this (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); + CORBA::Object_ptr _this (CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()); // Returns a CORBA::Object_ptr for the target object. protected: @@ -267,17 +137,15 @@ protected: virtual void *_downcast (const char *repository_id); // Simply returns "this" - virtual TAO_Stub *_create_stub (CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); + virtual STUB_Object *_create_stub (CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()); // This is an auxiliar method for _this() and _narrow(). virtual void _dispatch (CORBA::ServerRequest &request, void *context, - CORBA_Environment &ACE_TRY_ENV = CORBA::default_environment ()); + CORBA_Environment &TAO_IN_ENV = CORBA::default_environment ()); // Turns around and calls invoke. }; -#endif /* TAO_HAS_MINIMUM_CORBA */ - #if defined (__ACE_INLINE__) # include "tao/Servant_Base.i" #endif /* __ACE_INLINE__ */ |