TAO_UIOP_Transport Class Reference

Specialization of the base TAO_Transport class to handle the UIOP protocol. More...

#include <UIOP_Transport.h>

Inheritance diagram for TAO_UIOP_Transport:

[legend]Collaboration diagram for TAO_UIOP_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	messaging_init (CORBA::Octet major, CORBA::Octet minor)
	Initialising the messaging object.
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
	TAO_UIOP_Transport (TAO_UIOP_Connection_Handler *handler, TAO_ORB_Core *orb_core, CORBA::Boolean flag)
	Constructor.
	~TAO_UIOP_Transport (void)
	Default destructor.
Private Attributes
TAO_UIOP_Connection_Handler *	connection_handler_
TAO_Pluggable_Messaging *	messaging_object_
	Our messaging object.

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Detailed Description

Specialization of the base TAO_Transport class to handle the UIOP protocol.

Definition at line 52 of file UIOP_Transport.h.

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Constructor & Destructor Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL TAO_UIOP_Transport::TAO_UIOP_Transport (  TAO_UIOP_Connection_Handler *  handler, TAO_ORB_Core *  orb_core, CORBA::Boolean  flag )

Constructor. Definition at line 26 of file UIOP_Transport.cpp. References ACE_NEW, and TAO_TAG_UIOP_PROFILE. : TAO_Transport (TAO_TAG_UIOP_PROFILE, orb_core) , connection_handler_ (handler) , messaging_object_ (0) { /* * Hook to customize the messaging object when the concrete messaging * object is known a priori. In this case, the flag is ignored. */ //@@ MESSAGING_SPL_COMMENT_HOOK_START if (flag) { // Use the lite version of the protocol ACE_NEW (this->messaging_object_, TAO_GIOP_Message_Lite (orb_core)); } else { // Use the normal GIOP object ACE_NEW (this->messaging_object_, TAO_GIOP_Message_Base (orb_core, this)); } //@@ MESSAGING_SPL_COMMENT_HOOK_END }

TAO_UIOP_Transport::~TAO_UIOP_Transport (  void   )

Default destructor. Definition at line 55 of file UIOP_Transport.cpp. { delete this->messaging_object_; }

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Member Function Documentation

TAO_Connection_Handler * TAO_UIOP_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 67 of file UIOP_Transport.cpp. { return this->connection_handler_; }

ACE_Event_Handler * TAO_UIOP_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 61 of file UIOP_Transport.cpp. { return this->connection_handler_; }

int TAO_UIOP_Transport::messaging_init (  CORBA::Octet  major, CORBA::Octet  minor )  [virtual]

Initialising the messaging object. Implements TAO_Transport. Definition at line 190 of file UIOP_Transport.cpp. References TAO_Pluggable_Messaging::init(). { this->messaging_object_->init (major, minor); return 1; }

TAO_Pluggable_Messaging * TAO_UIOP_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 73 of file UIOP_Transport.cpp. { return this->messaging_object_; }

ssize_t TAO_UIOP_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 95 of file UIOP_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 () \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_UIOP_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 79 of file UIOP_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_UIOP_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 UIOP_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 %d after fault %p\n"), this->id (), ACE_TEXT ("send_message ()\n"))); return -1; } return 1; }

int TAO_UIOP_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 133 of file UIOP_Transport.cpp. References TAO_Transport::first_request_sent(), 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; this->first_request_sent(); return 0; }

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Member Data Documentation

TAO_UIOP_Connection_Handler* TAO_UIOP_Transport::connection_handler_ [private]

The connection service handler used for accessing lower layer communication protocols. Definition at line 109 of file UIOP_Transport.h.

TAO_Pluggable_Messaging* TAO_UIOP_Transport::messaging_object_ [private]

Our messaging object. Definition at line 112 of file UIOP_Transport.h.

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

• UIOP_Transport.h
• UIOP_Transport.cpp

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