Defines a wrapper class that holds the root Naming Context. More...

#include <Naming_Server.h>

Collaboration diagram for TAO_Naming_Server:

Public Member Functions
	TAO_Naming_Server (void)
	Default constructor.
	TAO_Naming_Server (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, size_t context_size=ACE_DEFAULT_MAP_SIZE, ACE_Time_Value timeout=0, bool resolve_for_existing_naming_service=true, const ACE_TCHAR persistence_location=0, void *base_addr=TAO_NAMING_BASE_ADDR, int enable_multicast=1, int use_storable_context=0, int round_trip_timeout=0, int use_round_trip_timeout=0)
int	init (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa, size_t context_size=ACE_DEFAULT_MAP_SIZE, ACE_Time_Value timeout=0, bool resolve_for_existing_naming_service=true, const ACE_TCHAR persistence_location=0, void *base_addr=TAO_NAMING_BASE_ADDR, int enable_multicast=1, int use_storable_context=0, int round_trip_timeout=0, int use_round_trip_timeout=0)
int	init_with_orb (int argc, ACE_TCHAR *argv[], CORBA::ORB_ptr orb)
int	fini (void)
	Destroy the child POA created in `init_with_orb`.
	~TAO_Naming_Server (void)
	Destructor.
char *	naming_service_ior (void)
	Returns the IOR of the naming service.
CosNaming::NamingContext_ptr	operator-> (void) const
	Returns a <NamingContext_ptr> for the root Naming Context.
Protected Member Functions
int	init_new_naming (CORBA::ORB_ptr orb, PortableServer::POA_ptr root_poa, const ACE_TCHAR persistence_location, void base_addr, size_t context_size, int enable_multicast, int use_storable_context, int round_trip_timeout=0, int use_round_trip_timeout=0)
int	parse_args (int argc, ACE_TCHAR *argv[])
	parses the arguments.
Protected Attributes
CosNaming::NamingContext_var	naming_context_
	Root NamingContext_ptr.
TAO_IOR_Multicast *	ior_multicast_
	The ior_multicast event handler.
CORBA::String_var	naming_service_ior_
	The IOR string of the root naming context.
CORBA::ORB_var	orb_
	The ORB.
PortableServer::POA_var	root_poa_
	The Root POA.
PortableServer::POA_var	ns_poa_
	The Naming Service POA.
const ACE_TCHAR *	ior_file_name_
	File to output the Naming Service IOR.
const ACE_TCHAR *	pid_file_name_
	File to output the process id.
size_t	context_size_
int	multicast_
	If not zero multicast is enabled.
TAO_Persistent_Context_Index *	context_index_
const ACE_TCHAR *	persistence_file_name_
void *	base_address_
int	use_storable_context_
	If not zero use flat file persistence.
int	use_servant_activator_
TAO_Storable_Naming_Context_Activator *	servant_activator_
int	use_redundancy_
int	round_trip_timeout_
	If not zero use round trip timeout policy set to value specified.
int	use_round_trip_timeout_

Detailed Description

Defines a wrapper class that holds the root Naming Context.

This class either finds an existing Naming Service (if the <resolve_for_existing_naming_service> flag is set) or creates one (if resolve_for_existing_naming_service flag isn't set or Naming Service was not found). This class also defines the operator-> so that <NamingContext> functions like <bind>, <unbind> .. can be called directly on a <TAO_Naming_Server> object, and be forwareded to the root Naming Context. This class is intended to simplify programs that want to play the role of a Naming Service server. To simplify programs that want to play the role of Naming Service clients, use <TAO_Naming_Client>. If a Naming Service is created locally, a TAO_IOR_Multicast event handler is created and installed on the ORB's reactor. This event handler allows other clients on the network to discover and use this Naming Service. Event handler listens on a multicast port for messages from clients looking for a Naming Service, and sends back the ior of the root Naming Context. For more information on how this bootstraping through a multicast process works, check out orbsvcs/orbsvcs/TAO_IOR_Multicast.*, implementation of <resolve_initial_references>, and orbsvcs/Naming/README.

Constructor & Destructor Documentation

TAO_Naming_Server::TAO_Naming_Server ( void )

Default constructor.

TAO_Naming_Server::TAO_Naming_Server	(	CORBA::ORB_ptr	orb,
		PortableServer::POA_ptr	poa,
		size_t	context_size = `ACE_DEFAULT_MAP_SIZE`,
		ACE_Time_Value *	timeout = `0`,
		bool	resolve_for_existing_naming_service = `true`,
		const ACE_TCHAR *	persistence_location = `0`,
		void *	base_addr = `TAO_NAMING_BASE_ADDR`,
		int	enable_multicast = `1`,
		int	use_storable_context = `0`,
		int	round_trip_timeout = `0`,
		int	use_round_trip_timeout = `0`
	)

Constructor. Attempts to find an existing Naming Service if resolve_for_existing_naming_service is set to true. If it is false, or no Naming Service was found during a timeout period, create the Naming Service in this process. If creating the Naming Service locally, make the root context of size <context_size>, register it under the <poa>, and make the Naming Service persistent if <persistence_location> is not 0. (<persistence_location> specifies name of the file to use for persistent storage, <base_addr> specifies the address used for memory mapping <persistent_location> file). If <enable_multicast> is not zero then the service will respond to multicast location queries.

TAO_Naming_Server::~TAO_Naming_Server ( void )

Destructor.

Member Function Documentation

int TAO_Naming_Server::fini ( void )

Destroy the child POA created in init_with_orb.

int TAO_Naming_Server::init	(	CORBA::ORB_ptr	orb,
		PortableServer::POA_ptr	poa,
		size_t	context_size = `ACE_DEFAULT_MAP_SIZE`,
		ACE_Time_Value *	timeout = `0`,
		bool	resolve_for_existing_naming_service = `true`,
		const ACE_TCHAR *	persistence_location = `0`,
		void *	base_addr = `TAO_NAMING_BASE_ADDR`,
		int	enable_multicast = `1`,
		int	use_storable_context = `0`,
		int	round_trip_timeout = `0`,
		int	use_round_trip_timeout = `0`
	)

Initializer. Attempts to find an existing Naming Service if resolve_for_existing_naming_service is set to true. If it is false, or no Naming Service was found during a <timeout> period, create the Naming Service in this process. If creating the Naming Service locally, make the root context of size <context_size>, register it under the <poa>, and make the Naming Service persistent if <persistence_location> is not 0. (<persistence_location> specifies name of the file to use for persistent storage, <base_addr> specifies the address used for memory mapping <persistent_location> file). If <enable_multicast> is not zero then the service will respond to multicast location queries.

int TAO_Naming_Server::init_new_naming	(	CORBA::ORB_ptr	orb,
		PortableServer::POA_ptr	root_poa,
		const ACE_TCHAR *	persistence_location,
		void *	base_addr,
		size_t	context_size,
		int	enable_multicast,
		int	use_storable_context,
		int	round_trip_timeout = `0`,
		int	use_round_trip_timeout = `0`
	)		`[protected]`

Helper method: create Naming Service locally. Make the root context of size <context_size>, register it under the <root_poa>, and make the Naming Service persistent if <persistence_location> is not 0. (<persistence_location> specifies name of the file to use for persistent storage). If <enable_multicast> is not zero then the service will respond to multicast location queries.

int TAO_Naming_Server::init_with_orb	(	int	argc,
		ACE_TCHAR *	argv[],
		CORBA::ORB_ptr	orb
	)

Initialize the Naming Service with the command line arguments and the ORB.

char * TAO_Naming_Server::naming_service_ior ( void )

Returns the IOR of the naming service.

CosNaming::NamingContext_ptr TAO_Naming_Server::operator-> ( void ) const

Returns a <NamingContext_ptr> for the root Naming Context.

int TAO_Naming_Server::parse_args	(	int	argc,
		ACE_TCHAR *	argv[]
	)		`[protected]`

parses the arguments.

Member Data Documentation

void* TAO_Naming_Server::base_address_ [protected]

Address to be used for memory mapping Naming Service state file, identified by the <persistence_file_name_>.

TAO_Persistent_Context_Index* TAO_Naming_Server::context_index_ [protected]

Pointer to the object used to create/initialize the Naming Service when local persistent Naming Service is desired.

size_t TAO_Naming_Server::context_size_ [protected]

Size of the hash_table allocated upon the creation of the Naming Service context (if one is created). Note: all the contexts created under the given context will use the same size for their initial hash table allocations.

const ACE_TCHAR* TAO_Naming_Server::ior_file_name_ [protected]

File to output the Naming Service IOR.

TAO_IOR_Multicast* TAO_Naming_Server::ior_multicast_ [protected]

The ior_multicast event handler.

int TAO_Naming_Server::multicast_ [protected]

If not zero multicast is enabled.

CosNaming::NamingContext_var TAO_Naming_Server::naming_context_ [protected]

Root NamingContext_ptr.

CORBA::String_var TAO_Naming_Server::naming_service_ior_ [protected]

The IOR string of the root naming context.

PortableServer::POA_var TAO_Naming_Server::ns_poa_ [protected]

The Naming Service POA.