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|
// -*- C++ -*-
// ===================================================================
/**
* @file ORB_Core.h
*
* $Id$
*
* @author DOC Center - Washington University at St. Louis
* @author DOC Laboratory - University of California at Irvine
*/
// ===================================================================
#ifndef TAO_ORB_CORE_H
#define TAO_ORB_CORE_H
#include /**/ "ace/pre.h"
#include "tao/Resource_Factory.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/Collocation_Strategy.h"
#include "tao/params.h"
#include "tao/ORB_Constants.h"
#include "tao/Parser_Registry.h"
#include "tao/Service_Callbacks.h"
#include "tao/Fault_Tolerance_Service.h"
#include "tao/Cleanup_Func_Registry.h"
#include "tao/Object_Ref_Table.h"
#include "tao/ObjectKey_Table.h"
#include "tao/Messaging_SyncScopeC.h"
#include "tao/Object.h"
#include "tao/Invocation_Utils.h"
#include "tao/Adapter_Registry.h"
#include "tao/ORB_Core_TSS_Resources.h"
#include "tao/Service_Context_Handler_Registry.h"
#include "ace/Array_Map.h"
#include "ace/Thread_Manager.h"
#include "ace/Lock_Adapter_T.h"
#include "ace/TSS_T.h"
#include "ace/Service_Config.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
class ACE_Data_Block;
ACE_END_VERSIONED_NAMESPACE_DECL
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
#if TAO_HAS_INTERCEPTORS == 1
namespace TAO
{
class ClientRequestInterceptor_Adapter;
class ServerRequestInterceptor_Adapter;
}
#endif /* TAO_HAS_INTERCEPTORS == 1 */
class TAO_Adapter;
class TAO_Acceptor;
class TAO_Connector;
class TAO_Connector_Registry;
class TAO_Resource_Factory;
class TAO_Client_Strategy_Factory;
class TAO_Server_Strategy_Factory;
class TAO_TSS_Resources;
class TAO_Leader_Follower;
class TAO_LF_Strategy;
class TAO_RT_ORB;
class TAO_MProfile;
class TAO_Profile;
class TAO_Endpoint_Selector_Factory;
class TAO_Message_State_Factory;
class TAO_Protocols_Hooks;
class TAO_Network_Priority_Protocols_Hooks;
class TAO_BiDir_Adapter;
class TAO_ZIOP_Adapter;
class TAO_Flushing_Strategy;
class TAO_Thread_Lane_Resources_Manager;
class TAO_Collocation_Resolver;
class TAO_Thread_Lane_Resources;
class TAO_Stub_Factory;
class TAO_Endpoint_Selector_Factory;
class TAO_Service_Context;
class TAO_Request_Dispatcher;
class TAO_Policy_Set;
class TAO_Policy_Manager;
class TAO_Policy_Current;
class TAO_Codeset_Manager;
class TAO_IORInterceptor_Adapter;
class TAO_Valuetype_Adapter;
class TAO_Policy_Validator;
namespace TAO
{
class GUIResource_Factory;
class PolicyFactory_Registry_Adapter;
class ORBInitializer_Registry_Adapter;
class Transport_Queueing_Strategy;
}
namespace CORBA
{
class ORB_ObjectIdList; // CORBA::ORB::ObjectIdList
class ORB;
typedef ORB *ORB_ptr;
class PolicyList;
}
namespace IOP
{
class ServiceContextList;
}
namespace PortableInterceptor
{
class IORInterceptor;
typedef IORInterceptor *IORInterceptor_ptr;
#if TAO_HAS_INTERCEPTORS == 1
class ClientRequestInterceptor;
typedef ClientRequestInterceptor *ClientRequestInterceptor_ptr;
class ServerRequestInterceptor;
typedef ServerRequestInterceptor *ServerRequestInterceptor_ptr;
#endif /* TAO_HAS_INTERCEPTORS == 1 */
}
// ****************************************************************
/**
* @class TAO_ORB_Core
*
* @brief Encapsulates the state of an ORB.
*
* This is the implementation class for the CORBA::ORB interface. The
* class also encapsulates the access to the ORB resources and its
* state.
* @par
* Some resources can be TSS or global, those resources are always
* accessed through a TSS interface, but are allocated using the
* Resource_Factory. If the resource is really global the
* Resource_Factory will simply return a pointer to the global
* instance.
*/
class TAO_Export TAO_ORB_Core
{
friend class TAO_ORB_Core_Auto_Ptr;
friend TAO_Export CORBA::ORB_ptr CORBA::ORB_init (int &,
ACE_TCHAR *argv[],
const char *);
public:
/// Constructor.
TAO_ORB_Core (const char* id, ACE_Intrusive_Auto_Ptr<ACE_Service_Gestalt> g);
/// Accessor for the ORB parameters.
TAO_ORB_Parameters *orb_params (void);
/**
* @todo
* In the future this hook should change, instead of hardcoding the
* object we should add a "Resolver" to the ORB, so the "POACurrent"
* object returns a per-ORB object.
* @par
* Similarly, each ORB should implement the TSS pattern to put the
* POA_Current_Impl in a void* slot. The current approach *does*
* decouple the POA from the ORB, but it cannot add new adapters or
* other components transparently.
*/
/// Accessor to the POA current.
//@{
CORBA::Object_ptr poa_current(void);
//@}
/// Get the connector registry
TAO_Connector_Registry *connector_registry (void);
/// Get the IOR parser registry
TAO_Parser_Registry *parser_registry (void);
/// Return pointer to the policy factory registry associated with
/// this ORB core.
TAO::PolicyFactory_Registry_Adapter *policy_factory_registry (void);
/// Return pointer to the orb initializer registry associated with
/// this ORB core. Tries to load the PI library if it is not loaded
/// yet
TAO::ORBInitializer_Registry_Adapter *orbinitializer_registry (void);
TAO_ZIOP_Adapter *ziop_adapter () const;
void ziop_adapter (TAO_ZIOP_Adapter *adapter);
TAO_Service_Context_Registry &service_context_registry (void);
/// Get the protocol factories
TAO_ProtocolFactorySet *protocol_factories (void);
/// Get pointer to the ORB.
CORBA::ORB_ptr orb (void);
/// Wrappers that forward the request to the concurrency strategy.
ACE_Reactor *reactor (void);
/// Get the ACE_Thread_Manager
ACE_Thread_Manager *thr_mgr (void);
/// Return the RootPOA, or try to load it if not initialized already.
CORBA::Object_ptr root_poa (void);
/// Get the adapter registry
TAO_Adapter_Registry &adapter_registry (void);
/// @name Collocation Strategies
//@{
enum
{
/// Indicate object should refer to ORB for either one of the
/// following strategies.
ORB_CONTROL,
/// Collocated calls will go thru POA.
THRU_POA,
/// Collocated calls invoke operation on Servant directly.
DIRECT
};
/**
* This method returns the right collocation strategy, if any,
* to be used to perform a method invocation on the given object.
*
* @note
* No-Collocation is a special case of collocation.
*/
static
TAO::Collocation_Strategy collocation_strategy (CORBA::Object_ptr object);
//@}
/// Set/get the collocation flags
//@{
void optimize_collocation_objects (CORBA::Boolean opt);
CORBA::Boolean optimize_collocation_objects (void) const;
void use_global_collocation (CORBA::Boolean opt);
CORBA::Boolean use_global_collocation (void) const;
CORBA::ULong get_collocation_strategy (void) const;
//@}
/// Get the adapter named "RootPOA" and cache the result, this is an
/// optimization for the POA.
TAO_Adapter *poa_adapter (void);
/**
* @name Access to Factories
*
* These factories are not thread-specific, and are presented here
* in order to have one place to get useful information. Often, the
* instances to which the return pointers are stored in the Service
* Repository.
*/
//@{
/// Returns pointer to the resource factory.
TAO_Resource_Factory *resource_factory (void);
/// Returns pointer to the factory for creating gui resources
TAO::GUIResource_Factory *gui_resource_factory (void);
/// Returns pointer to the client factory.
TAO_Client_Strategy_Factory *client_factory (void);
/// Returns pointer to the server factory.
TAO_Server_Strategy_Factory *server_factory (void);
/// Returns pointer to the Protocols_Hooks.
TAO_Protocols_Hooks *protocols_hooks (void);
/// Returns a pointer to the Thread Lane Resources Manager.
TAO_Thread_Lane_Resources_Manager &thread_lane_resources_manager (void);
/// Returns a pointer to the Collocation Resolver.
TAO_Collocation_Resolver &collocation_resolver (void);
/// Returns a pointer to the Stub factory.
TAO_Stub_Factory *stub_factory (void);
/// Returns a pointer to the endpoint selector factory.
TAO_Endpoint_Selector_Factory *endpoint_selector_factory (void);
//@}
/// Sets the value of TAO_ORB_Core::resource_factory_
static void set_resource_factory (const char *resource_factory_name);
/** Sets the value of TAO_ORB_Core::gui_resource_factory_.
*
* Sets the value of gui_resource_factory in TSS. ORB_Core is responsible
* for releasing this factory if needed.
*/
static void set_gui_resource_factory (TAO::GUIResource_Factory *gui_factory);
/// Sets the value of TAO_ORB_Core::network_priority_protocols_hooks_
static void set_network_priority_protocols_hooks (
const char *network_priority_protocols_hooks_name);
/// Gets the value of TAO_ORB_Core::protocols_hooks__
TAO_Protocols_Hooks * get_protocols_hooks (void);
/// Gets the value of TAO_ORB_Core::network_priority_protocols_hooks__
TAO_Network_Priority_Protocols_Hooks *
get_network_priority_protocols_hooks (void);
/// Sets the value of TAO_ORB_Core::dynamic_adapter_name_.
static void dynamic_adapter_name (const char *name);
/// Gets the value of TAO_ORB_Core::dynamic_adapter_name_.
static const char *dynamic_adapter_name (void);
/// Sets the value of TAO_ORB_Core::ifr_client_adapter_name_.
static void ifr_client_adapter_name (const char *name);
/// Gets the value of TAO_ORB_Core::ifr_client_adapter_name_.
static const char *ifr_client_adapter_name (void);
/// Sets the value of TAO_ORB_Core::typecodefactory_adapter_name_.
static void typecodefactory_adapter_name (const char *name);
/// Gets the value of TAO_ORB_Core::typecodefactory_adapter_name_.
static const char *typecodefactory_adapter_name (void);
/// Sets the value of TAO_ORB_Core::iorinterceptor_adapter_factory_name_.
static void iorinterceptor_adapter_factory_name (const char *name);
/// Gets the value of TAO_ORB_Core::iorinterceptor_adapter_factory_name_.
static const char *iorinterceptor_adapter_factory_name (void);
/// Sets the value of TAO_ORB_Core::valuetype_adapter_factory_name.
static void valuetype_adapter_factory_name (const char *name);
/// Gets the value of TAO_ORB_Core::valuetype_adapter_factory_name.
static const char *valuetype_adapter_factory_name (void);
/// See if we have a collocated address, if yes, return the POA
/// associated with the address.
int is_collocated (const TAO_MProfile& mprofile);
/// This allocator is always TSS and has no locks. It is intended
/// for allocating the ACE_Data_Blocks used in *outgoing* CDR
/// streams.
ACE_Allocator *output_cdr_dblock_allocator (void);
/// This allocator is always TSS and has no locks. It is intended
/// for allocating the buffers used in *outgoing* CDR streams.
ACE_Allocator *output_cdr_buffer_allocator (void);
/// This allocator is always TSS and has no locks. It is intended
/// for allocating the ACE_Data_Blocks used in *outgoing* CDR
/// streams.
ACE_Allocator *output_cdr_msgblock_allocator (void);
/// This allocator is global, may or may not have locks. It is
/// intended for allocating the ACE_Data_Blocks used in *incoming*
/// CDR streams.
ACE_Allocator *input_cdr_dblock_allocator (void);
/// This allocator is always global and has no locks. It is intended
/// for allocating the buffers used in *incoming* CDR streams.
ACE_Allocator *input_cdr_buffer_allocator (void);
/// This allocator is always global and has no locks. It is intended
/// for allocating the buffers used in *incoming* CDR streams.
ACE_Allocator *input_cdr_msgblock_allocator (void);
/// This allocator is always global and has no locks. It is intended
/// for allocating the buffers used to queue messages in
/// transports.
ACE_Allocator *transport_message_buffer_allocator (void);
/// The Message Blocks used for input CDRs must have appropiate
/// locking strategies.
ACE_Data_Block *create_input_cdr_data_block (size_t size);
/// Return the locking strategy used for the data blocks.
ACE_Lock *locking_strategy (void);
#if (TAO_HAS_CORBA_MESSAGING == 1)
/// Accessor method for the default_policies_
TAO_Policy_Set *get_default_policies (void);
/// Get a policy. First, check the ORB-level Policy Manager, then
/// check the ORB defaults.
CORBA::Policy_ptr get_policy (CORBA::PolicyType type);
/// Get a policy. First, check the thread current, then check the
/// ORB-level Policy Manager, then check the ORB defaults.
CORBA::Policy_ptr get_policy_including_current (CORBA::PolicyType type);
/// Get a cached policy. First, check the ORB-level Policy Manager,
/// then check the ORB defaults.
CORBA::Policy_ptr get_cached_policy (TAO_Cached_Policy_Type type);
/// Get a cached policy. First, check the thread current, then
/// check the ORB-level Policy Manager, then check the ORB defaults.
CORBA::Policy_ptr get_cached_policy_including_current (
TAO_Cached_Policy_Type type);
#endif /* TAO_HAS_CORBA_MESSAGING == 1 */
/**
* The thread has a default environment to simplify porting between
* platforms that support native C++ exceptions and those that
* don't. This is a TSS resource (always), but with a twist: if the
* user creates a new environment the old one is "pushed" (actually
* the new one remembers it), eventually the new environment
* destructor pops itself from the stack and we recover the old
* environment.
* @par
* This means that if the user create a new environment and somebody
* calls a function using the default one the exception will still
* be received in the environment created by the user.
* The only drawback is that environments life time must nest
* properly, this shouldn't be a problem because environments are
* usually created on the stack, but, the spec allows their creation
* on the heap and/or as class members; we need to investigate the
* tradeoffs and take a decision.
*/
//@{
CORBA::Environment *default_environment (void) const;
void default_environment (CORBA::Environment*);
//@}
#if (TAO_HAS_CORBA_MESSAGING == 1)
/// Return the Policy_Manager for this ORB.
TAO_Policy_Manager *policy_manager (void);
/// Accesors to the policy current, this object should be kept in
/// TSS storage. The POA has to reset the policy current object on
/// every upcall.
TAO_Policy_Current &policy_current (void);
#endif /* TAO_HAS_CORBA_MESSAGING == 1 */
/// Invoke the timeout hook if present.
/**
* The timeout hook is used to determine if the timeout policy is
* set and with what value. If the ORB is compiled without support
* for Messaging this feature does not take effect
* \param has_timeout returns 0 if there is no timeout policy set.
* \param time_value returns the timeout value in effect for the object,
* thread and current ORB.
*/
void call_timeout_hook (TAO_Stub *stub,
bool &has_timeout,
ACE_Time_Value &time_value);
/// Define the Timeout_Hook signature
typedef void (*Timeout_Hook) (TAO_ORB_Core *,
TAO_Stub *,
bool&,
ACE_Time_Value&);
void set_timeout_hook (Timeout_Hook hook);
/// Invoke the timeout hook if present.
/**
* The timeout hook is used to determine if the timeout policy is
* set and with what value. If the ORB is compiled without support
* for Messaging this feature does not take effect
* \param has_timeout returns 0 if there is no timeout policy set.
* \param time_value returns the timeout value in effect for the object,
* thread and current ORB.
*/
void connection_timeout (TAO_Stub *stub,
bool &has_timeout,
ACE_Time_Value &time_value);
/// Define the Timeout_Hook signature
/**
* The connection timeout hook was originally defined to allow the
* TAO Messaging code to be factored out of the core TAO library and
* placed in to an optional library. Since then, a new invocation
* endpoint selector, the optimised connection endpoint selector
* (see Strategies/OC_Endpoint_Selector.h) reused this connection
* timeout hook. However, this set up a problem when both the
* Messaging library and OCES are being used in the same
* application.
*
* The solution was to add a new connection timeout hook attribute
* (see alt_connection_timeout_hook_ below). This method now checks
* to see if the connection timeout hook is already set, and if so
* assigns the supplied hook value to the alternate connection
* timeout hook. This functionality has a side-effect of assuming
* that hooks are NEVER unloaded or actively replaced. IOW, no one
* will call this method with a 0 or some other pointer value to
* replace an existing hook.
*
* If such functionality as unloading a hook pointer is required,
* then this method must be extended to give some kind of identity
* for the hook. Additional changes to the definition of the hook
* will also be necessary to support such identity and manipulation.
*/
static void connection_timeout_hook (Timeout_Hook hook);
void call_sync_scope_hook (TAO_Stub *stub,
bool &has_synchronization,
Messaging::SyncScope &scope);
#if (TAO_HAS_BUFFERING_CONSTRAINT_POLICY == 1)
TAO::Transport_Queueing_Strategy *get_transport_queueing_strategy (
TAO_Stub *stub,
Messaging::SyncScope &scope);
#endif /* TAO_HAS_BUFFERING_CONSTRAINT_POLICY == 1 */
typedef void (*Sync_Scope_Hook) (TAO_ORB_Core *,
TAO_Stub *,
bool &,
Messaging::SyncScope &);
void set_sync_scope_hook (Sync_Scope_Hook hook);
/// Default Sync_Scope_Hook.
static void default_sync_scope_hook (TAO_ORB_Core *,
TAO_Stub *,
bool &has_synchronization,
Messaging::SyncScope &scope);
/// Handle to the factory for protocols_hooks_..
TAO_Protocols_Hooks *protocols_hooks_;
/// Handle to the factory for network_priority_protocols_hooks_..
TAO_Network_Priority_Protocols_Hooks *network_priority_protocols_hooks_;
/// Obtain the TSS resources of this orb.
TAO_ORB_Core_TSS_Resources* get_tss_resources (void);
/// Obtain the TSS resource in the given slot.
void* get_tss_resource (size_t slot_id);
/// Set the TSS resource at the given slot.
/// Returns 0 on success, and -1 on failure.
int set_tss_resource (size_t slot_id, void *);
/// Register a TSS cleanup function. The slot ID for the
/// corresponding ORB core TSS resource is returned by the reference
/// argument. This method return 0 on success, and -1 on failure.
int add_tss_cleanup_func (ACE_CLEANUP_FUNC cleanup, size_t &slot_id);
/// Cleans up ts_objects using the underlying TSS cleanup function registry.
void tss_cleanup (ACE_Array_Base<void *> &ts_objects);
/// Get access to the leader_follower class.
TAO_Leader_Follower &leader_follower (void);
/// Get access to the leader follower strategy.
TAO_LF_Strategy &lf_strategy (void);
/// Get access to the thread lane resources.
TAO_Thread_Lane_Resources &lane_resources (void);
/// Run the event loop.
int run (ACE_Time_Value *tv, int perform_work);
/// End the event loop
void shutdown (CORBA::Boolean wait_for_completion);
/// Get the shutdown flag value
bool has_shutdown (void) const;
/// Shutdown the ORB and free resources
void destroy (void);
/// Check if ORB has shutdown. If it has, throw an exception.
void check_shutdown (void);
/// Returns the @a timeout value used by the server threads to poll
/// the shutdown flag. If the return value is zero then the server
/// threads block forever.
int thread_per_connection_timeout (ACE_Time_Value &timeout) const;
/// Makes sure that the ORB is open and then creates a TAO_Stub
/// based on the endpoint.
TAO_Stub *create_stub_object (TAO_MProfile &mprofile,
const char *type_id,
CORBA::PolicyList *policy_list);
/// Factory method that create the "right" Stub depending on
/// wheather RTCORBA is loaded or not. The factory used to create
/// the stub, is loaded at ORB initialization, and its type depends
/// on the fact that RTCORBA is being used or not.
TAO_Stub *create_stub (const char *repository_id,
const TAO_MProfile &profiles);
/// Create a new object, use the adapter registry to create a
/// collocated object, if not possible then create a regular
/// object.
CORBA::Object_ptr create_object (TAO_Stub *the_stub);
/// Initialize a new object, use the adapter registry to initialize a
/// collocated object, if not possible then initialize a regular
/// object.
/// NOTE: Why would this method be required? The answer is if the
/// user decides to use lazy initialization of CORBA object, then
/// this is the route that we have to take to do the
/// initialization.
CORBA::Long initialize_object (TAO_Stub *the_stub, CORBA::Object_ptr obj);
/// Reinitialise a stub after the effective profile has changed.
/// This will happen after a location forward has been received
/// or if a location forward supplied new target subsequently fails.
CORBA::Long reinitialize_object (TAO_Stub *stub);
/// Return ORBid string.
const char *orbid (void) const;
/// Set/Get the IOR of the Implementation Repository service.
//@{
CORBA::Object_ptr implrepo_service (void);
void implrepo_service (const CORBA::Object_ptr ir);
//@}
/// Do we attempt to register with the Implementation Repository
CORBA::Boolean use_implrepo (void);
/// Do we put the ImR's endpoints into persistent object references we create
CORBA::Boolean imr_endpoints_in_ior (void);
/// Resolve the TypeCodeFactory DLL.
CORBA::Object_ptr resolve_typecodefactory (void);
#if TAO_HAS_INTERCEPTORS == 1
/// Resolve the PICurrent.
CORBA::Object_ptr resolve_picurrent (void);
#endif /* TAO_HAS_INTERCEPTORS == 1 */
/// Resolve POA Current.
CORBA::Object_ptr resolve_poa_current (void);
/// Resolve the CodecFactory DLL.
CORBA::Object_ptr resolve_codecfactory (void);
/// Resolve the Compression DLL.
CORBA::Object_ptr resolve_compression_manager (void);
/// Resolve the Dynamic Any Factory
CORBA::Object_ptr resolve_dynanyfactory (void);
/// Resolve the IOR Manipulation reference for this ORB.
CORBA::Object_ptr resolve_ior_manipulation (void);
TAO_ZIOP_Adapter* ziop_adapter_i (void);
/// Resolve the IOR Table reference for this ORB.
CORBA::Object_ptr resolve_ior_table (void);
/// Resolve the Monitor reference for this ORB.
CORBA::Object_ptr resolve_monitor (void);
/// Resolve an initial reference via the -ORBInitRef and
// -ORBDefaultInitRef options.
CORBA::Object_ptr resolve_rir (const char *name);
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
/// Resolve the RT ORB reference for this ORB.
CORBA::Object_ptr resolve_rt_orb (void);
#endif
/// Resolve the RT Current flyweight for this ORB.
/// Return server_id string.
const char *server_id (void) const;
/// List all the service known by the ORB
CORBA::ORB_ObjectIdList *list_initial_references (void);
/// Reference counting...
unsigned long _incr_refcnt (void);
unsigned long _decr_refcnt (void);
unsigned long _refcnt (void) const;
/// Register the handle of an open connection with the ORB Core
/// handle set. This handle set will be used to explicitly remove
/// corresponding event handlers from the reactor.
int register_handle (ACE_HANDLE handle);
/// Remove @a handle from the ORB Core's handle set so that it
/// isn't included in the set that is passed to the reactor upon ORB
/// destruction.
int remove_handle (ACE_HANDLE handle);
/**
* @name ORB Core Service Hooks
*
* These methods would represent the hooks in the ORB Core. These
* hooks would be used to call back on the services or other
* features that are dynamically loaded.
*/
//@{
/**
* The loaded service in the ORB_Core would determine if the profile
* selection is going to be made by the services or not. If the
* services do make the selection they would return the selected
* profile through <profile>.
*/
CORBA::Boolean service_profile_selection (const TAO_MProfile &mprofile,
TAO_Profile *&profile);
/**
* The loaded service would determine if the CORBA::Object_ptr is
* actually nil or not. This would be useful to accomodate new
* enhanced definitions as defined by the service specification.
*/
CORBA::Boolean object_is_nil (CORBA::Object_ptr object);
/// Hook for the services to determine whether the profiles are
/// equivalent or not.
/**
* For details on how this is used please see the FT service
*/
TAO_Service_Callbacks::Profile_Equivalence is_profile_equivalent (
const TAO_Profile *this_p,
const TAO_Profile *that_p);
/// Hook for the services to determine the <hash> value of a
/// profile.
/**
* For details on how this is used please see the FT service
*/
CORBA::ULong hash_service (TAO_Profile *this_p, CORBA::ULong max);
/// Return a reference to the Fault Tolerant service object.
TAO_Fault_Tolerance_Service &fault_tolerance_service (void);
/// Transmit the entire TAG_FT_GROUP component data from a server IOGR as
/// a FT_GROUP_VERSION tagged service context on requests to that IOGR instead
/// of just the group version.
CORBA::Boolean ft_send_extended_sc (void);
/// Raise a comm failure exception if a service is not loaded, else
/// delegate to the service to see what the service has to do for
/// this case.
TAO::Invocation_Status service_raise_comm_failure (
IOP::ServiceContextList &clist,
TAO_Profile *profile);
/// Raise a transient failure exception if a service is not loaded,
/// else delegate to the service to see what the service has to do
/// for this case.
TAO::Invocation_Status service_raise_transient_failure (
IOP::ServiceContextList &clist,
TAO_Profile *profile);
//@}
/**
* @name Portable Interceptor Related Methods
*
* These are support methods for interceptor registration and
* interceptor set (an array) access, in addition to PICurrent
* access.
*/
//@{
#if TAO_HAS_INTERCEPTORS == 1
/// Return a pointer to the cached TAO::PICurrent object.
CORBA::Object_ptr pi_current (void);
/// Set the pointer to the cached TAO::PICurrent object.
void pi_current (CORBA::Object_ptr current);
/// Register a client request interceptor.
void add_interceptor (
PortableInterceptor::ClientRequestInterceptor_ptr interceptor);
/// Register a server request interceptor.
void add_interceptor (
PortableInterceptor::ServerRequestInterceptor_ptr interceptor);
/// Register a client request interceptor with policies.
void add_interceptor (
PortableInterceptor::ClientRequestInterceptor_ptr interceptor,
const CORBA::PolicyList& policies);
/// Register a server request interceptor with policies.
void add_interceptor (
PortableInterceptor::ServerRequestInterceptor_ptr interceptor,
const CORBA::PolicyList& policies);
/// Get the Client Request Interceptor adapter.
/// Will not create a new one if not available yet.
TAO::ClientRequestInterceptor_Adapter *clientrequestinterceptor_adapter (void);
/// Get the Server Request Interceptor adapter.
/// Will not create a new one if not available yet.
TAO::ServerRequestInterceptor_Adapter *serverrequestinterceptor_adapter (void);
#endif /* TAO_HAS_INTERCEPTORS */
/// Register an IOR interceptor.
void add_interceptor (PortableInterceptor::IORInterceptor_ptr interceptor);
//@}
/// Return the valuetype adapter
TAO_Valuetype_Adapter *valuetype_adapter (void);
#if !defined(CORBA_E_MICRO)
/// Value factory operations (CORBA 2.3 ptc/98-10-05 Ch. 4.2 p.4-7)
CORBA::ValueFactory register_value_factory (
const char *repository_id,
CORBA::ValueFactory factory);
#endif
#if !defined(CORBA_E_MICRO)
void unregister_value_factory (const char * repository_id);
#endif
#if !defined(CORBA_E_MICRO)
CORBA::ValueFactory lookup_value_factory (const char *repository_id);
#endif
/// Get the IOR Interceptor adapter. If not created, this method will try
/// to create one.
TAO_IORInterceptor_Adapter *ior_interceptor_adapter (void);
/// Set and Get methods to indicate whether a BiDir IIOP policy has
/// been set in the POA.
/// @note At present, the value will be true even if one of the POA's
/// is set with the Bi Dir GIOP policy.
CORBA::Boolean bidir_giop_policy (void);
void bidir_giop_policy (CORBA::Boolean);
/// Return the table that maps object key/name to de-stringified
/// object reference. It is needed for supporting local objects in
/// the resolve_initial_references() mechanism.
TAO_Object_Ref_Table &object_ref_table (void);
/// Acceessor to the table that stores the object_keys.
TAO::ObjectKey_Table &object_key_table (void);
/// Return the current request dispatcher strategy.
TAO_Request_Dispatcher *request_dispatcher (void);
/// Set a new request dispatcher. The ORB Core retains ownership
/// of the request dispatcher once it gets it. Currently, this only
/// gets called at initialization.
void request_dispatcher (TAO_Request_Dispatcher *rd);
/// Call the libraries to handover the validators if they haven't
/// registered yet with the list of validators.
void load_policy_validators (TAO_Policy_Validator &validator);
/// Return the flushing strategy
/**
* The flushing strategy is created by the resource factory, and it
* is used by the ORB to control the mechanism used to flush the
* outgoing data queues.
* The flushing strategies are stateless, therefore, there is only
* one per ORB.
*/
TAO_Flushing_Strategy *flushing_strategy (void);
/// Get Code Set Manager
TAO_Codeset_Manager *codeset_manager (void);
typedef ACE_Array_Map<ACE_CString, ACE_CString> InitRefMap;
/// Return a pointer to the -ORBInitRef map.
InitRefMap * init_ref_map (void);
/// Set the ORB related to the orb_id as the default ORB and not the
/// ORB that is first binded in the ORB Table
void set_default (const char * orb_id);
/// Choose to be not a default ORB when there is more than one ORB.
void not_default (const char * orb_id);
/// Verify condition for permanent forward is given,
/// both parameters must provide group attributes.
CORBA::Boolean is_permanent_forward_condition
(const CORBA::Object_ptr obj,
const TAO_Service_Context &service_context);
/// Configuration accessor method
ACE_Service_Gestalt* configuration () const;
/// Get outgoing fragmentation strategy.
auto_ptr<TAO_GIOP_Fragmentation_Strategy>
fragmentation_strategy (TAO_Transport * transport);
#if (TAO_HAS_BUFFERING_CONSTRAINT_POLICY == 1)
void set_eager_transport_queueing_strategy (
TAO::Transport_Queueing_Strategy* strategy);
void set_delayed_transport_queueing_strategy (
TAO::Transport_Queueing_Strategy* strategy);
#endif
protected:
/// Destructor is protected since the ORB Core is a reference
/// counted object.
~TAO_ORB_Core (void);
/// Initialize the guts of the ORB Core. It is intended that this be
/// called by CORBA::ORB_init().
int init (int &argc, char *argv[]);
/// Final termination hook, typically called by CORBA::ORB's
/// destructor.
int fini (void);
/// Routine that creates a ACE_Data_Block given the lock and allocators.
ACE_Data_Block *create_data_block_i (size_t size,
ACE_Allocator *buffer_allocator,
ACE_Allocator *dblock_allocator,
ACE_Lock *lock);
/// Obtain and cache the typecode factory object reference.
void resolve_typecodefactory_i (void);
/// Obtain and cache the poa current.
void resolve_poa_current_i (void);
#if TAO_HAS_INTERCEPTORS == 1
/// Obtain and cache the picurrent factory object reference.
void resolve_picurrent_i (void);
/// Get the Client Request Interceptor adapter.
/// If not created, this method will try to create one if needed.
TAO::ClientRequestInterceptor_Adapter *clientrequestinterceptor_adapter_i (void);
/// Get the Server Request Interceptor adapter.
/// If not created, this method will try to create one if needed.
TAO::ServerRequestInterceptor_Adapter *serverrequestinterceptor_adapter_i (void);
#endif /* TAO_HAS_INTERCEPTORS */
/// Obtain and cache the codec factory object reference.
void resolve_codecfactory_i (void);
/// Obtain and cache the compression manager object reference.
void resolve_compression_manager_i (void);
/// Obtain and cache the dynamic any factory object reference.
void resolve_dynanyfactory_i (void);
/// Obtain and cache the IORManipulation factory object reference.
void resolve_iormanipulation_i (void);
/// Obtain and cache the Monitor object reference.
void resolve_monitor_i (void);
/// Search the Dynamic service list for well known services that has
/// callbacks which can be dynamically loaded.
void services_callbacks_init (void);
/// Helper method that invokes Interceptor::destroy() on all
/// registered interceptors when ORB::destroy() is called. Prevents
/// exceptions from propagating up the call chain.
void destroy_interceptors (void);
/// Pointer to the list of protocol loaded into this ORB instance.
/// Helper method to hold the common code part for -ORBEndpoint and
/// -ORBListenEndpoints options.
int set_endpoint_helper (const ACE_CString &lane,
const ACE_CString &endpoints);
/// Return pointer to the policy factory registry associated with
/// this ORB core.
TAO::PolicyFactory_Registry_Adapter *policy_factory_registry_i (void);
/// Return pointer to the orb initializer registry associated with
/// this ORB core.
TAO::ORBInitializer_Registry_Adapter *orbinitializer_registry_i (void);
/// Common code from ::initialize_object and ::reinitialize_object
CORBA::Long initialize_object_i (TAO_Stub *the_stub,
const TAO_MProfile& mprofile);
private:
/// The ORB Core should not be copied.
//@{
TAO_ORB_Core(const TAO_ORB_Core&);
void operator=(const TAO_ORB_Core&);
//@}
/// Obtain and cache the dynamic any factory object reference.
void resolve_ior_table_i (void);
/// Checks to see whether collocation optimizations have to be
/// applied on objects in the @a other_orb
CORBA::Boolean is_collocation_enabled (TAO_ORB_Core *other_orb,
const TAO_MProfile &mp);
bool use_local_memory_pool_;
protected:
/// Synchronize internal state...
TAO_SYNCH_MUTEX lock_;
TAO_Thread_Lane_Resources_Manager *thread_lane_resources_manager_;
TAO_Collocation_Resolver *collocation_resolver_;
TAO_Stub_Factory *stub_factory_;
TAO_ProtocolFactorySet *protocol_factories_;
/// The cached IOR for the Implementation Repository.
// @@ If this is a _var, where should it get deleted? (brunsch)
CORBA::Object_ptr implrepo_service_;
/// Flag for whether the implrepo support is enabled or not.
int use_implrepo_;
/// Flag for whether to put the ImR endpoints into our object refs.
int imr_endpoints_in_ior_;
/// The cached IOR for the TypeCodeFactory DLL.
CORBA::Object_ptr typecode_factory_;
/// The cached IOR for the CodecFactory DLL.
CORBA::Object_ptr codec_factory_;
/// The cached IOR for the Compression DLL.
CORBA::Object_ptr compression_manager_;
/// The cached object reference for the DynAnyFactory.
CORBA::Object_ptr dynany_factory_;
/// The cached object reference for the IORManipulataion.
CORBA::Object_ptr ior_manip_factory_;
/// The cached object reference for the IORTable.
CORBA::Object_ptr ior_table_;
/// The cached object reference for the Monitor.
CORBA::Object_ptr monitor_;
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
/// The cached object reference for the RTCORBA::RTORB.
CORBA::Object_var rt_orb_;
/// The cached object reference for the RTCORBA::Current interface.
CORBA::Object_var rt_current_;
#endif
/**
* @note
* Should we keep a single ORB pointer? This is good because
* multiple calls to ORB_init() with the same ORBid can use the same
* object, but maybe don't want so much coupling.
*
* Pointer to the ORB.
*/
CORBA::ORB_ptr orb_;
/// Object reference to the root POA. It will eventually be the
/// object reference returned by calls to
/// CORBA::ORB::resolve_initial_references ("RootPOA").
CORBA::Object_var root_poa_;
/// Parameters used by the ORB.
TAO_ORB_Parameters orb_params_;
/// Return InitRefMap to find if a particular object id is present.
InitRefMap init_ref_map_;
/// Table that maps object key/name to (de-stringified) object
/// reference. It is needed for supporting local objects in the
/// resolve_initial_references() mechanism.
TAO_Object_Ref_Table object_ref_table_;
/// Table that stores the object key instead of caching one per-profile.
TAO::ObjectKey_Table object_key_table_;
/// The ORBid for this ORB.
char *orbid_;
/// Handle to the factory for resource information..
TAO_Resource_Factory *resource_factory_;
/// The server_id_ that was passed via -ORBServerId option
ACE_CString server_id_;
/// Handle to the factory for Client-side strategies.
TAO_Client_Strategy_Factory *client_factory_;
/// Handle to the factory for Server-side strategies.
TAO_Server_Strategy_Factory *server_factory_;
/**
* @name Service Level Hooks
*/
//@{
/// Fault Tolerant service hook.
TAO_Fault_Tolerance_Service ft_service_;
//@}
/// TRUE transmits a full TAG_FT_GROUP component in place of the FT_GROUP_VERSION
/// context on FT requests. This is contrary to the spec but enables more effective
/// fault tolerant stuff. @todo reference to OMG issue. Default false.
CORBA::Boolean ft_send_extended_sc_;
/// TRUE if we want to take advantage of collocation optimization in
/// this ORB.
CORBA::Boolean opt_for_collocation_;
/// TRUE if we want to consider all ORBs in this address space
/// collocated.
CORBA::Boolean use_global_collocation_;
/// Default collocation policy. This should never be ORB_CONTROL.
CORBA::ULong collocation_strategy_;
#if (TAO_HAS_CORBA_MESSAGING == 1)
/// The Policy_Manager for this ORB.
TAO_Policy_Manager *policy_manager_;
/// The default policies.
TAO_Policy_Set *default_policies_;
/// Policy current.
TAO_Policy_Current *policy_current_;
#endif /* TAO_HAS_CORBA_MESSAGING == 1 */
/// The request dispatching strategy.
TAO_Request_Dispatcher *request_dispatcher_;
/**
* POA current.
*/
CORBA::Object_var poa_current_;
/// The list of Adapters used in this ORB.
TAO_Adapter_Registry adapter_registry_;
/// An optimization for the POA.
TAO_Adapter *poa_adapter_;
/// The Thread Manager
ACE_Thread_Manager tm_;
/// The data block reference counts are locked using this mutex
ACE_Lock_Adapter<TAO_SYNCH_MUTEX> data_block_lock_;
/// TSS Object cleanup functions. These correspond to the TSS
/// objects stored in TAO's TSS resources.
TAO_Cleanup_Func_Registry tss_cleanup_funcs_;
/// This is where the tss resources for this ORB are stored.
ACE_TSS_TYPE (TAO_ORB_Core_TSS_Resources) tss_resources_;
/// Flag which denotes that the ORB has been shutdown.
bool has_shutdown_;
/// The value of the timeout if the flag above is not zero.
//@{
int thread_per_connection_use_timeout_;
ACE_Time_Value thread_per_connection_timeout_;
//@}
/// Mutual exclusion for calling open.
TAO_SYNCH_MUTEX open_lock_;
TAO_Endpoint_Selector_Factory *endpoint_selector_factory_;
#if (TAO_HAS_BUFFERING_CONSTRAINT_POLICY == 1)
/// This strategy will buffer messages.
TAO::Transport_Queueing_Strategy *eager_transport_queueing_strategy_;
/// This strategy will buffer messages.
TAO::Transport_Queueing_Strategy *delayed_transport_queueing_strategy_;
/// This strategy will not queue by default, but will flush the queue
/// each time
TAO::Transport_Queueing_Strategy *flush_transport_queueing_strategy_;
#endif /* TAO_HAS_BUFFERING_CONSTRAINT_POLICY == 1 */
/// Number of outstanding references to this object.
ACE_Atomic_Op<TAO_SYNCH_MUTEX, unsigned long> refcount_;
/// Registry containing all registered policy factories.
TAO::PolicyFactory_Registry_Adapter *policy_factory_registry_;
/// Registry containing all orb initializers
TAO::ORBInitializer_Registry_Adapter *orbinitializer_registry_;
/// Registry containing all service context handlers
TAO_Service_Context_Registry service_context_registry_;
#if (TAO_HAS_INTERCEPTORS == 1)
/// Cached pointer/reference to the PICurrent object.
/**
* A pointer/reference to the PICurrent object is cached in the ORB
* Core since it is accessed in the critical path (i.e. the request
* invocation path). Caching it prevents additional overhead to due
* object resolution from occurring.
*/
CORBA::Object_ptr pi_current_;
/// The adapter for handling client request interceptors
TAO::ClientRequestInterceptor_Adapter *client_request_interceptor_adapter_;
/// The adapter for handling server request interceptors
TAO::ServerRequestInterceptor_Adapter *server_request_interceptor_adapter_;
#endif /* TAO_HAS_INTERCEPTORS */
/// IORInterceptor adapter.
TAO_IORInterceptor_Adapter *ior_interceptor_adapter_;
/// Pointer to the valuetype adapter.
TAO_Valuetype_Adapter *valuetype_adapter_;
/// The IOR parser registry.
TAO_Parser_Registry parser_registry_;
/// BiDirectional GIOP factory
TAO_BiDir_Adapter *bidir_adapter_;
/// Bir Dir GIOP policy value
CORBA::Boolean bidir_giop_policy_;
/// ZIOP Adapter
TAO_ZIOP_Adapter *ziop_adapter_;
/// ZIOP enabled or not
CORBA::Boolean ziop_enabled_;
/// Hold the flushing strategy
TAO_Flushing_Strategy *flushing_strategy_;
/// Code Set Manager, received from the Resource Factory
TAO_Codeset_Manager *codeset_manager_;
/// ORB's service configuration
ACE_Intrusive_Auto_Ptr<ACE_Service_Gestalt> config_;
/// The hook to be set for the SyncScopePolicy
Sync_Scope_Hook sync_scope_hook_;
/// The hook to be set for the RelativeRoundtripTimeoutPolicy.
Timeout_Hook timeout_hook_;
};
// ****************************************************************
/**
* @class TAO_ORB_Core_Static_Resources
*
* @brief The static (global) resoures of all ORB cores.
*
* This class is used by the ORB_Core to store the resources global to
* all ORB_Cores. All instance variables that would have been
* declared "static" in TAO_ORB_Core, should be declared in this class
* to avoid the "static initialization order fiasco" as described in
* http://www.parashift.com/c++-faq-lite/ctors.html#faq-10.11.
* Briefly, this is the problem that occurs if any static initializers
* in any other code call into set static members of TAO_ORB_Core.
* Since the order in which these initializers execute is unspecified,
* uninitialized members can be accessed.
*/
class TAO_Export TAO_ORB_Core_Static_Resources : public ACE_Service_Object
{
public:
/// Return the context-specific singleton instance.
static TAO_ORB_Core_Static_Resources* instance (void);
public:
/**
* Name of the network_priority_protocols_hooks that needs to be instantiated.
*/
ACE_CString network_priority_protocols_hooks_name_;
/// The hook to be set for the ConnectionTimeoutPolicy
TAO_ORB_Core::Timeout_Hook connection_timeout_hook_;
/**
* Name of the resource factory that needs to be instantiated.
* The default value is "Resource_Factory". If TAO_Strategies is
* linked, the set_resource_factory will be called to set the value
* to be "Advanced_Resource_Factory".
*/
ACE_CString resource_factory_name_;
/**
* Name of the service object for DII request creation that needs
* to be instantiated. The default value is "Dynamic_Adaper". If
* TAO_DynamicInterface is linked, dynamic_adapter_name() will be
* called to set the value to "Concrete_Dynamic_Adapter".
*/
ACE_CString dynamic_adapter_name_;
/**
* Name of the service object for functions that make calls on
* the Interface Repository. The default value is "IFR_Client_Adaper".
* If TAO_IFR_CLient is linked, ifr_client_adapter_name() will be
* called to set the value to "Concrete_IFR_Client_Adapter".
*/
ACE_CString ifr_client_adapter_name_;
/**
* Name of the service object used by the ORB create_*_tc functions.
* The default value is "TypeCodeFactory_Adapter". If the
* TypeCodeFactory library is linked, the corresponding accessor
* function typecodefactory_adapter_name() will be called to set
* the value to "Concrete_TypeCodeFactory_Adapter".
*/
ACE_CString typecodefactory_adapter_name_;
/**
* Name of the factory object used to adapt function calls on
* the PortableInterceptor interfaces IORInfo and IORInterceptor.
* The default value is "IORInterceptor_Adapter_Factory". If the
* IORInterceptor library is linked, the corresponding accessor
* function iorinterceptor_adapter_factory_name() will be called to set
* the value to "Concrete_IORInterceptor_Adapter_Factory".
*/
ACE_CString iorinterceptor_adapter_factory_name_;
/**
* Name of the factory object used to adapt function calls on
* the valuetype-related interfaces.
* The default value is "Valuetype_Adapter_Factory". If the
* Valuetype library is linked, the corresponding accessor
* function valuetype_adapter_factory_name() will be called to set
* the value to "Concrete_Valuetype_Adapter_Factory".
*/
ACE_CString valuetype_adapter_factory_name_;
/// An alternative hook to be set for the ConnectionTimeoutPolicy
TAO_ORB_Core::Timeout_Hook alt_connection_timeout_hook_;
//private:
/// Constructor.
TAO_ORB_Core_Static_Resources (void);
TAO_ORB_Core_Static_Resources& operator=
(const TAO_ORB_Core_Static_Resources&);
private:
/// Mostly unused variable whose sole purpose is to enforce
/// the instantiation of a TAO_ORB_Core_Static_Resources instance
/// at initialization time.
static TAO_ORB_Core_Static_Resources* initialization_reference_;
};
// ****************************************************************
/// Obtain an instance of the first ORB core registered in the ORB
/// table.
TAO_Export TAO_ORB_Core * TAO_ORB_Core_instance (void);
// ****************************************************************
ACE_STATIC_SVC_DECLARE_EXPORT (TAO, TAO_ORB_Core_Static_Resources)
ACE_FACTORY_DECLARE (TAO, TAO_ORB_Core_Static_Resources)
TAO_END_VERSIONED_NAMESPACE_DECL
#if defined (__ACE_INLINE__)
# include "tao/ORB_Core.inl"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* TAO_ORB_CORE_H */
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