TAO::SSLIOP::Transport Class Reference

SSLIOP-specific transport implementation. More...

#include <SSLIOP_Transport.h>

Inheritance diagram for TAO::SSLIOP::Transport:

[legend]Collaboration diagram for TAO::SSLIOP::Transport:

[legend]List of all members.

Overridden Template Methods
These are implementations of template methods declared by TAO_Transport.
virtual int	send_request (TAO_Stub *stub, TAO_ORB_Core *orb_core, TAO_OutputCDR &stream, int message_semantics, ACE_Time_Value *max_wait_time)
virtual int	send_message (TAO_OutputCDR &stream, TAO_Stub *stub=0, int message_semantics=TAO_Transport::TAO_TWOWAY_REQUEST, ACE_Time_Value *max_time_wait=0)
virtual int	generate_request_header (TAO_Operation_Details &opdetails, TAO_Target_Specification &spec, TAO_OutputCDR &msg)
virtual int	messaging_init (CORBA::Octet major, CORBA::Octet minor)
	Initialising the messaging object.
virtual int	tear_listen_point_list (TAO_InputCDR &cdr)
	Open teh service context list and process it.
virtual ACE_Event_Handler *	event_handler_i (void)
virtual TAO_Connection_Handler *	connection_handler_i (void)
virtual TAO_Pluggable_Messaging *	messaging_object (void)
virtual ssize_t	send (iovec *iov, int iovcnt, size_t &bytes_transferred, const ACE_Time_Value *timeout=0)
	Write the complete Message_Block chain to the connection.
virtual ssize_t	recv (char *buf, size_t len, const ACE_Time_Value *s=0)
	Read len bytes from into buf.
Public Member Functions
	Transport (Connection_Handler *handler, TAO_ORB_Core *orb_core, CORBA::Boolean flag)
	Constructor.
	~Transport (void)
	Default destructor.
virtual int	handle_input (TAO_Resume_Handle &rh, ACE_Time_Value *max_wait_time=0, int block=0)
Private Member Functions
void	set_bidir_context_info (TAO_Operation_Details &opdetails)
int	get_listen_point (IIOP::ListenPointList &listen_point_list, TAO_Acceptor *acceptor)
Private Attributes
Connection_Handler *	connection_handler_
TAO_Pluggable_Messaging *	messaging_object_
	Our messaging object.

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Detailed Description

SSLIOP-specific transport implementation.

SSLIOP-specific transport implementation.

Definition at line 62 of file SSLIOP_Transport.h.

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Constructor & Destructor Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL TAO::SSLIOP::Transport::Transport (  Connection_Handler *  handler, TAO_ORB_Core *  orb_core, CORBA::Boolean  flag )

Constructor. Definition at line 26 of file SSLIOP_Transport.cpp. References ACE_NEW. : TAO_Transport (IOP::TAG_INTERNET_IOP, orb_core), connection_handler_ (handler), messaging_object_ (0) { // Use the normal GIOP object ACE_NEW (this->messaging_object_, TAO_GIOP_Message_Base (orb_core, this)); }

TAO::SSLIOP::Transport::~Transport (  void   )

Default destructor. Definition at line 39 of file SSLIOP_Transport.cpp. { delete this->messaging_object_; }

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Member Function Documentation

TAO_Connection_Handler * TAO::SSLIOP::Transport::connection_handler_i (  void   )  [protected, virtual]

Todo: These methods IMHO should have more meaningful names. The names seem to indicate nothing. Implements TAO_Transport. Definition at line 51 of file SSLIOP_Transport.cpp. { return this->connection_handler_; }

ACE_Event_Handler * TAO::SSLIOP::Transport::event_handler_i (  void   )  [protected, virtual]

Todo: These methods IMHO should have more meaningful names. The names seem to indicate nothing. Implements TAO_Transport. Definition at line 45 of file SSLIOP_Transport.cpp. { return this->connection_handler_; }

int TAO::SSLIOP::Transport::generate_request_header (  TAO_Operation_Details &  opdetails, TAO_Target_Specification &  spec, TAO_OutputCDR &  msg )  [virtual]

Todo: These methods IMHO should have more meaningful names. The names seem to indicate nothing. Reimplemented from TAO_Transport. Definition at line 192 of file SSLIOP_Transport.cpp. References TAO_ORB_Core::bidir_giop_policy(), TAO_Transport::bidirectional_flag(), TAO_Transport::generate_request_header(), TAO_Pluggable_Messaging::is_ready_for_bidirectional(), TAO_Transport::orb_core(), TAO_Operation_Details::request_id(), and set_bidir_context_info(). { // Check whether we have a Bi Dir IIOP policy set, whether the // messaging objects are ready to handle bidirectional connections // and also make sure that we have not recd. or sent any information // regarding this before... if (this->orb_core ()->bidir_giop_policy () && this->messaging_object_->is_ready_for_bidirectional (msg) && this->bidirectional_flag () < 0) { this->set_bidir_context_info (opdetails); // Set the flag to 1 this->bidirectional_flag (1); // At the moment we enable BiDIR giop we have to get a new // request id to make sure that we follow the even/odd rule // for request id's. We only need to do this when enabled // it, after that the Transport Mux Strategy will make sure // that the rule is followed opdetails.request_id (this->tms ()->request_id ()); } // We are going to pass on this request to the underlying messaging // layer. It should take care of this request return TAO_Transport::generate_request_header (opdetails, spec, msg); }

int TAO::SSLIOP::Transport::get_listen_point (  IIOP::ListenPointList &  listen_point_list, TAO_Acceptor *  acceptor )  [private]

Add the listen points in acceptor to the listen_point_list if this connection is in the same interface as that of the endpoints in the acceptor. Definition at line 306 of file SSLIOP_Transport.cpp. References ACE_ERROR_RETURN, ACE_TEXT(), TAO_IIOP_Acceptor::endpoint_count(), TAO_IIOP_Acceptor::endpoints(), ACE_INET_Addr::get_ip_address(), IIOP::ListenPoint::host, TAO_IIOP_Acceptor::hostname(), TAO::unbounded_value_sequence< ListenPoint >::length(), LM_ERROR, ACE_Svc_Handler<, >::peer(), IIOP::ListenPoint::port, TAO::SSLIOP::Acceptor::ssl_component(), and CORBA::string_dup(). Referenced by set_bidir_context_info(). { TAO::SSLIOP::Acceptor *ssliop_acceptor = dynamic_cast<TAO::SSLIOP::Acceptor *> (acceptor); if (ssliop_acceptor == 0) return -1; // Get the array of IIOP (not SSLIOP!) endpoints serviced by the // SSLIOP_Acceptor. const ACE_INET_Addr *endpoint_addr = ssliop_acceptor->endpoints (); // Get the count const size_t count = ssliop_acceptor->endpoint_count (); // The SSL port is stored in the SSLIOP::SSL component associated // with the SSLIOP_Acceptor. const ::SSLIOP::SSL &ssl = ssliop_acceptor->ssl_component (); // Get the local address of the connection ACE_INET_Addr local_addr; { if (this->connection_handler_->peer ().get_local_addr (local_addr) == -1) { ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%P|%t) Could not resolve local host") ACE_TEXT (" address in get_listen_point()\n")), -1); } } // Note: Looks like there is no point in sending the list of // endpoints on interfaces on which this connection has not // been established. If this is wrong, please correct me. CORBA::String_var local_interface; // Get the hostname for the local address if (ssliop_acceptor->hostname (this->orb_core_, local_addr, local_interface.out ()) == -1) { ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%P|%t) Could not resolve local host") ACE_TEXT (" name \n")), -1); } for (size_t index = 0; index < count; ++index) { if (local_addr.get_ip_address () == endpoint_addr[index].get_ip_address ()) { // Get the count of the number of elements const CORBA::ULong len = listen_point_list.length (); // Increase the length by 1 listen_point_list.length (len + 1); // We have the connection and the acceptor endpoint on the // same interface IIOP::ListenPoint & point = listen_point_list[len]; point.host = CORBA::string_dup (local_interface.in ()); // All endpoints, if more than one, serviced by the // SSLIOP_Acceptor should be listening on the same port (due // to the bind to the INADDR_ANY address). point.port = ssl.port; } } return 1; }

int TAO::SSLIOP::Transport::handle_input (  TAO_Resume_Handle &  rh, ACE_Time_Value *  max_wait_time = 0, int  block = 0 )  [virtual]

Overload of the handle_input () in the TAO_Transport class. This is required to set up the state guard. The thread-per-connection and wait on RW strategies call this handle_input (). Reimplemented from TAO_Transport. Definition at line 63 of file SSLIOP_Transport.cpp. References TAO_Transport::handle_input(). { int result = 0; // Set up the SSLIOP::Current object. TAO::SSLIOP::State_Guard ssl_state_guard (this->connection_handler_, result); if (result == -1) return -1; return TAO_Transport::handle_input (rh, max_wait_time, block); }

int TAO::SSLIOP::Transport::messaging_init (  CORBA::Octet  major, CORBA::Octet  minor )  [virtual]

Initialising the messaging object. Implements TAO_Transport. Definition at line 226 of file SSLIOP_Transport.cpp. References TAO_Pluggable_Messaging::init(). { this->messaging_object_->init (major, minor); return 1; }

TAO_Pluggable_Messaging * TAO::SSLIOP::Transport::messaging_object (  void   )  [protected, virtual]

Todo: These methods IMHO should have more meaningful names. The names seem to indicate nothing. Implements TAO_Transport. Definition at line 57 of file SSLIOP_Transport.cpp. { return this->messaging_object_; }

ssize_t TAO::SSLIOP::Transport::recv (  char *  buf, size_t  len, const ACE_Time_Value *  s = 0 )  [protected, virtual]

Read len bytes from into buf. Implements TAO_Transport. Definition at line 97 of file SSLIOP_Transport.cpp. References ACE_DEBUG, ACE_TEXT(), ETIME, EWOULDBLOCK, LM_DEBUG, ACE_Svc_Handler<, >::peer(), ssize_t, and TAO_debug_level. { const ssize_t n = this->connection_handler_->peer ().recv (buf, len, max_wait_time); // Most of the errors handling is common for // Now the message has been read if (n == -1 && TAO_debug_level > 4 && errno != ETIME) { ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("TAO (%P|%t) - %p \n"), ACE_TEXT ("TAO - read message failure ") ACE_TEXT ("recv_i () \n"))); } // Error handling if (n == -1) { if (errno == EWOULDBLOCK) return 0; return -1; } // @@ What are the other error handling here?? else if (n == 0) { return -1; } return n; }

ssize_t TAO::SSLIOP::Transport::send (  iovec *  iov, int  iovcnt, size_t &  bytes_transferred, const ACE_Time_Value *  timeout = 0 )  [protected, virtual]

Write the complete Message_Block chain to the connection. Implements TAO_Transport. Definition at line 82 of file SSLIOP_Transport.cpp. References ACE_Svc_Handler<, >::peer(), and ssize_t. { const ssize_t retval = this->connection_handler_->peer ().sendv (iov, iovcnt, max_wait_time); if (retval > 0) bytes_transferred = retval; return retval; }

int TAO::SSLIOP::Transport::send_message (  TAO_OutputCDR &  stream, TAO_Stub *  stub = 0, int  message_semantics = TAO_Transport::TAO_TWOWAY_REQUEST, ACE_Time_Value *  max_time_wait = 0 )  [virtual]

Todo: These methods IMHO should have more meaningful names. The names seem to indicate nothing. Implements TAO_Transport. Definition at line 156 of file SSLIOP_Transport.cpp. References ACE_DEBUG, ACE_TEXT(), ACE_OutputCDR::begin(), TAO_Pluggable_Messaging::format_message(), LM_DEBUG, TAO_Transport::send_message_shared(), ssize_t, and TAO_debug_level. Referenced by send_request(). { // Format the message in the stream first if (this->messaging_object_->format_message (stream) != 0) return -1; // Strictly speaking, should not need to loop here because the // socket never gets set to a nonblocking mode ... some Linux // versions seem to need it though. Leaving it costs little. // This guarantees to send all data (bytes) or return an error. const ssize_t n = this->send_message_shared (stub, message_semantics, stream.begin (), max_wait_time); if (n == -1) { if (TAO_debug_level) ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("TAO: (%P|%t|%N|%l) closing transport ") ACE_TEXT ("%d after fault %p\n"), this->id (), ACE_TEXT ("send_message ()\n"))); return -1; } return 1; }

int TAO::SSLIOP::Transport::send_request (  TAO_Stub *  stub, TAO_ORB_Core *  orb_core, TAO_OutputCDR &  stream, int  message_semantics, ACE_Time_Value *  max_wait_time )  [virtual]

Todo: These methods IMHO should have more meaningful names. The names seem to indicate nothing. Implements TAO_Transport. Definition at line 135 of file SSLIOP_Transport.cpp. References send_message(), and TAO_Wait_Strategy::sending_request(). { if (this->ws_->sending_request (orb_core, message_semantics) == -1) return -1; if (this->send_message (stream, stub, message_semantics, max_wait_time) == -1) return -1; return 0; }

void TAO::SSLIOP::Transport::set_bidir_context_info (  TAO_Operation_Details &  opdetails  )  [private]

Set the Bidirectional context info in the service context list. Definition at line 258 of file SSLIOP_Transport.cpp. References TAO_Thread_Lane_Resources::acceptor_registry(), ACE_ERROR, TAO_Acceptor_Registry::begin(), TAO_Acceptor_Registry::end(), get_listen_point(), TAO_ORB_Core::lane_resources(), LM_ERROR, TAO_Transport::orb_core(), TAO_Operation_Details::request_service_context(), TAO_Service_Context::set_context(), TAO_AcceptorSetIterator, and TAO_ENCAP_BYTE_ORDER. Referenced by generate_request_header(). { // Get a handle on to the acceptor registry TAO_Acceptor_Registry &ar = this->orb_core ()->lane_resources ().acceptor_registry (); // Get the first acceptor in the registry TAO_AcceptorSetIterator acceptor = ar.begin (); IIOP::ListenPointList listen_point_list; for (; acceptor != ar.end (); acceptor++) { // Check whether it is a IIOP acceptor if ((*acceptor)->tag () == IOP::TAG_INTERNET_IOP) { if (this->get_listen_point (listen_point_list, *acceptor) == -1) { ACE_ERROR ((LM_ERROR, "TAO (%P|%t) - SSLIOP_Transport::set_bidir_info, ", "error getting listen_point \n")); return; } } } // We have the ListenPointList at this point. Create a output CDR // stream at this point TAO_OutputCDR cdr; // Marshall the information into the stream if ((cdr << ACE_OutputCDR::from_boolean (TAO_ENCAP_BYTE_ORDER) == 0) || (cdr << listen_point_list) == 0) return; // Add this info in to the svc_list opdetails.request_service_context ().set_context (IOP::BI_DIR_IIOP, cdr); return; }

int TAO::SSLIOP::Transport::tear_listen_point_list (  TAO_InputCDR &  cdr  )  [virtual]

Open teh service context list and process it. Reimplemented from TAO_Transport. Definition at line 236 of file SSLIOP_Transport.cpp. References TAO_Transport::bidirectional_flag(), TAO::SSLIOP::Connection_Handler::process_listen_point_list(), and ACE_InputCDR::reset_byte_order(). { CORBA::Boolean byte_order; if ((cdr >> ACE_InputCDR::to_boolean (byte_order)) == 0) return -1; cdr.reset_byte_order (static_cast<int> (byte_order)); IIOP::ListenPointList listen_list; if ((cdr >> listen_list) == 0) return -1; // As we have received a bidirectional information, set the flag to // 0 this->bidirectional_flag (0); return this->connection_handler_->process_listen_point_list (listen_list); }

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Member Data Documentation

Connection_Handler* TAO::SSLIOP::Transport::connection_handler_ [private]

The connection service handler used for accessing lower layer communication protocols. Definition at line 147 of file SSLIOP_Transport.h.

TAO_Pluggable_Messaging* TAO::SSLIOP::Transport::messaging_object_ [private]

Our messaging object. Definition at line 150 of file SSLIOP_Transport.h.

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The documentation for this class was generated from the following files:

• SSLIOP_Transport.h
• SSLIOP_Transport.cpp

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