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# TAO_GIOP_Message_Base Class Reference

Definitions of the GIOP specific stuff. More...

`#include <GIOP_Message_Base.h>`

Inheritance diagram for TAO_GIOP_Message_Base:

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Collaboration diagram for TAO_GIOP_Message_Base:

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List of all members.

## Public Methods
| TAO_GIOP_Message_Base (TAO_ORB_Core *orb_core, size_t input_cdr_size=ACE_CDR::DEFAULT_BUFSIZE)
| Constructor.
virtual | ~TAO_GIOP_Message_Base (void)
| Dtor.
virtual void | init (CORBA::Octet major, CORBA::Octet minor)
virtual void | reset (void)
| Reset the messaging the object.
virtual int | generate_request_header (TAO_Operation_Details &op, TAO_Target_Specification &spec, TAO_OutputCDR &cdr)
virtual int | generate_locate_request_header (TAO_Operation_Details &op, TAO_Target_Specification &spec, TAO_OutputCDR &cdr)
| Write the RequestHeader in to the <cdr> stream.
virtual int | generate_reply_header (TAO_OutputCDR &cdr, TAO_Pluggable_Reply_Params_Base &params)
| Write the reply header.
virtual int | read_message (TAO_Transport *transport, int block=0, ACE_Time_Value *max_wait_time=0)
virtual int | format_message (TAO_OutputCDR &cdr)
virtual int | parse_incoming_messages (ACE_Message_Block &message_block)
| Parse the incoming messages..
virtual ssize_t | missing_data (ACE_Message_Block &message_block)
virtual int | extract_next_message (ACE_Message_Block &incoming, TAO_Queued_Data *&qd)
virtual int | consolidate_node (TAO_Queued_Data *qd, ACE_Message_Block &incoming)
| Check whether the node <qd> needs consolidation from <incoming>.
virtual void | get_message_data (TAO_Queued_Data *qd)
| Get the details of the message parsed through the <qd>.
virtual int | consolidate_fragments (TAO_Queued_Data *dqd, const TAO_Queued_Data *sqd)
| Bala:Docu??
virtual int | process_request_message (TAO_Transport *transport, TAO_Queued_Data *qd)
virtual int | process_reply_message (TAO_Pluggable_Reply_Params &reply_info, TAO_Queued_Data *qd)
virtual int | generate_exception_reply (TAO_OutputCDR &cdr, TAO_Pluggable_Reply_Params_Base &params, CORBA::Exception &x)
| Generate a reply message with the exception <ex>.
virtual size_t | header_length (void) const
| Header length.
virtual TAO_OutputCDR & | out_stream (void)
| Accessor for the output CDR stream.
## Protected Methods
int | process_request (TAO_Transport *transport, TAO_InputCDR &input, TAO_OutputCDR &output, TAO_GIOP_Message_Generator_Parser *)
| Processes the <GIOP_REQUEST> messages.
int | process_locate_request (TAO_Transport *transport, TAO_InputCDR &input, TAO_OutputCDR &output, TAO_GIOP_Message_Generator_Parser *)
| Processes the <GIOP_LOCATE_REQUEST> messages.
void | set_state (CORBA::Octet major, CORBA::Octet minor, TAO_GIOP_Message_Generator_Parser *&)
| Set the state.
void | dump_msg (const char *label, const u_char *ptr, size_t len)
| Print out a debug messages..
TAO_Pluggable_Message_Type | message_type (TAO_GIOP_Message_State &state)
## Protected Attributes
char | buffer_ [ACE_CDR::DEFAULT_BUFSIZE]
| The generator and parser state.
TAO_OutputCDR | out_stream_
| Buffer where the request is placed.
## Private Methods
int | write_protocol_header (TAO_GIOP_Message_Type t, TAO_OutputCDR &msg)
int | make_send_locate_reply (TAO_Transport *transport, TAO_GIOP_Locate_Request_Header &request, TAO_GIOP_Locate_Status_Msg &status, TAO_OutputCDR &output, TAO_GIOP_Message_Generator_Parser *)
int | send_error (TAO_Transport *transport)
| Send error messages.
void | send_close_connection (const TAO_GIOP_Message_Version &version, TAO_Transport *transport, void *ctx)
| Close a connection, first sending GIOP::CloseConnection.
int | send_reply_exception (TAO_Transport *transport, TAO_OutputCDR &cdr, CORBA::ULong request_id, IOP::ServiceContextList *svc_info, CORBA::Exception *x)
virtual int | generate_locate_reply_header (TAO_OutputCDR &, TAO_Pluggable_Reply_Params_Base &)
| Write the locate reply header.
virtual int | is_ready_for_bidirectional (TAO_OutputCDR &msg)
TAO_Queued_Data * | make_queued_data (size_t sz)
## Private Attributes
TAO_ORB_Core * | orb_core_
| Cached ORB_Core pointer...
TAO_GIOP_Message_State | message_state_
TAO_GIOP_Message_Generator_Parser_Impl | tao_giop_impl_
| All the implementations of GIOP message generator and parsers.

## Detailed Description

Definitions of the GIOP specific stuff.

This class will hold the specific details common to all the GIOP versions. Some of them which are here may be shifted if things start changing between versions. This class uses the TAO_GIOP_Message_Reactive_Handler to read and parse messages.

## Constructor & Destructor Documentation

TAO_GIOP_Message_Base::TAO_GIOP_Message_Base | ( | TAO_ORB_Core * | orb_core,
|  | size_t | input_cdr_size = ACE_CDR::DEFAULT_BUFSIZE
| ) |

| Constructor.

TAO_GIOP_Message_Base::~TAO_GIOP_Message_Base | ( | void |  | ) | `[virtual]`

| Dtor.

## Member Function Documentation

int TAO_GIOP_Message_Base::consolidate_fragments | ( | TAO_Queued_Data * | dqd,
|  | const TAO_Queued_Data * | sqd
| ) | `[virtual]`

| Bala:Docu?? @ Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::consolidate_node | ( | TAO_Queued_Data * | qd,
|  | ACE_Message_Block & | incoming
| ) | `[virtual]`

| Check whether the node <qd> needs consolidation from <incoming>. Implements TAO_Pluggable_Messaging.

void TAO_GIOP_Message_Base::dump_msg | ( | const char * | label,
|  | const u_char * | ptr,
|  | size_t | len
| ) | `[protected]`

| Print out a debug messages..

int TAO_GIOP_Message_Base::extract_next_message | ( | ACE_Message_Block & | incoming,
|  | TAO_Queued_Data *& | qd
| ) | `[virtual]`

| Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::format_message | ( | TAO_OutputCDR & | cdr | ) | `[virtual]`

| Format the message. As we have not written the message length in the header, we make use of this oppurtunity to insert and format the message. Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::generate_exception_reply | ( | TAO_OutputCDR & | cdr,
|  | TAO_Pluggable_Reply_Params_Base & | params,
|  | CORBA::Exception & | x
| ) | `[virtual]`

| Generate a reply message with the exception <ex>. Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::generate_locate_reply_header | ( | TAO_OutputCDR & | ,
|  | TAO_Pluggable_Reply_Params_Base & |
| ) | `[private, virtual]`

| Write the locate reply header. Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::generate_locate_request_header | ( | TAO_Operation_Details & | op,
|  | TAO_Target_Specification & | spec,
|  | TAO_OutputCDR & | cdr
| ) | `[virtual]`

| Write the RequestHeader in to the <cdr> stream. Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::generate_reply_header | ( | TAO_OutputCDR & | cdr,
|  | TAO_Pluggable_Reply_Params_Base & | params
| ) | `[virtual]`

| Write the reply header. Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::generate_request_header | ( | TAO_Operation_Details & | op,
|  | TAO_Target_Specification & | spec,
|  | TAO_OutputCDR & | cdr
| ) | `[virtual]`

| Write the RequestHeader in to the <cdr> stream. The underlying implementation of the mesaging should do the right thing. Implements TAO_Pluggable_Messaging.

void TAO_GIOP_Message_Base::get_message_data | ( | TAO_Queued_Data * | qd | ) | `[virtual]`

| Get the details of the message parsed through the <qd>. Implements TAO_Pluggable_Messaging.

size_t TAO_GIOP_Message_Base::header_length | ( | void |  | ) | const`[virtual]`

| Header length. Implements TAO_Pluggable_Messaging.

void TAO_GIOP_Message_Base::init | ( | CORBA::Octet | major,
|  | CORBA::Octet | minor
| ) | `[virtual]`

| Initialize the underlying state object based on the <major> and <minor> revision numbers Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::is_ready_for_bidirectional | ( | TAO_OutputCDR & | msg | ) | `[private, virtual]`

| Is the messaging object ready for processing BiDirectional request/response? Implements TAO_Pluggable_Messaging.

TAO_Queued_Data * TAO_GIOP_Message_Base::make_queued_data | ( | size_t | sz | ) | `[private]`

| Creates a new node for the queue with a message block in the node of size <sz>..

int TAO_GIOP_Message_Base::make_send_locate_reply | ( | TAO_Transport * | transport,
|  | TAO_GIOP_Locate_Request_Header & | request,
|  | TAO_GIOP_Locate_Status_Msg & | status,
|  | TAO_OutputCDR & | output,
|  | TAO_GIOP_Message_Generator_Parser * |
| ) | `[private]`

| Make a <GIOP_LOCATEREPLY> and hand that over to the transport so that it can be sent over the connection. NOTE:As on date 1.1 & 1.2 seem to have similar headers. Till an unmanageable difference comes let them be implemented here.

TAO_Pluggable_Message_Type TAO_GIOP_Message_Base::message_type | ( | TAO_GIOP_Message_State & | state | ) | `[protected]`

| Get the message type. The return value would be one of the following: TAO_PLUGGABLE_MESSAGE_REQUEST, TAO_PLUGGABLE_MESSAGE_REPLY, TAO_PLUGGABLE_MESSAGE_CLOSECONNECTION, TAO_PLUGGABLE_MESSAGE_MESSAGE_ERROR.

ssize_t TAO_GIOP_Message_Base::missing_data | ( | ACE_Message_Block & | message_block | ) | `[virtual]`

| Calculate the amount of data that is missing in the <incoming> message block. Implements TAO_Pluggable_Messaging.

TAO_OutputCDR & TAO_GIOP_Message_Base::out_stream | ( | void |  | ) | `[virtual]`

| Accessor for the output CDR stream. Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::parse_incoming_messages | ( | ACE_Message_Block & | message_block | ) | `[virtual]`

| Parse the incoming messages.. Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::process_locate_request | ( | TAO_Transport * | transport,
|  | TAO_InputCDR & | input,
|  | TAO_OutputCDR & | output,
|  | TAO_GIOP_Message_Generator_Parser * |
| ) | `[protected]`

| Processes the <GIOP_LOCATE_REQUEST> messages.

int TAO_GIOP_Message_Base::process_reply_message | ( | TAO_Pluggable_Reply_Params & | reply_info,
|  | TAO_Queued_Data * | qd
| ) | `[virtual]`

| Parse the reply message that we received and return the reply information though <reply_info> Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::process_request | ( | TAO_Transport * | transport,
|  | TAO_InputCDR & | input,
|  | TAO_OutputCDR & | output,
|  | TAO_GIOP_Message_Generator_Parser * |
| ) | `[protected]`

| Processes the <GIOP_REQUEST> messages.

int TAO_GIOP_Message_Base::process_request_message | ( | TAO_Transport * | transport,
|  | TAO_Queued_Data * | qd
| ) | `[virtual]`

| Process the request message that we have received on the connection Implements TAO_Pluggable_Messaging.

int TAO_GIOP_Message_Base::read_message | ( | TAO_Transport * | transport,
|  | int | block = 0,
|  | ACE_Time_Value * | max_wait_time = 0
| ) | `[virtual]`

| This method reads the message on the connection. Returns 0 when there is short read on the connection. Returns 1 when the full message is read and handled. Returns -1 on errors. If <block> is 1, then reply is read in a blocking manner. Implements TAO_Pluggable_Messaging.

void TAO_GIOP_Message_Base::reset | ( | void |  | ) | `[virtual]`

| Reset the messaging the object. Implements TAO_Pluggable_Messaging.

void TAO_GIOP_Message_Base::send_close_connection | ( | const TAO_GIOP_Message_Version & | version,
|  | TAO_Transport * | transport,
|  | void * | ctx
| ) | `[private]`

| Close a connection, first sending GIOP::CloseConnection.

int TAO_GIOP_Message_Base::send_error | ( | TAO_Transport * | transport | ) | `[private]`

| Send error messages.

int TAO_GIOP_Message_Base::send_reply_exception | ( | TAO_Transport * | transport,
|  | TAO_OutputCDR & | cdr,
|  | CORBA::ULong | request_id,
|  | IOP::ServiceContextList * | svc_info,
|  | CORBA::Exception * | x
| ) | `[private]`

| We must send a LocateReply through <transport>, this request resulted in some kind of exception.

void TAO_GIOP_Message_Base::set_state | ( | CORBA::Octet | major,
|  | CORBA::Octet | minor,
|  | TAO_GIOP_Message_Generator_Parser *& |
| ) | `[protected]`

| Set the state.

int TAO_GIOP_Message_Base::write_protocol_header | ( | TAO_GIOP_Message_Type | t,
|  | TAO_OutputCDR & | msg
| ) | `[private]`

| Writes the GIOP header in to <msg> NOTE: If the GIOP header happens to change in the future, we can push this method in to the generator_parser classes.

## Member Data Documentation

char TAO_GIOP_Message_Base::buffer_[ACE_CDR::DEFAULT_BUFSIZE]`[protected]`

| The generator and parser state. Buffer used for both the output and input CDR streams, this is "safe" because we only one of the streams at a time.

TAO_GIOP_Message_State TAO_GIOP_Message_Base::message_state_`[private]`

| Thr message handler object that does reading and parsing of the incoming messages

TAO_ORB_Core* TAO_GIOP_Message_Base::orb_core_`[private]`

| Cached ORB_Core pointer...

TAO_OutputCDR TAO_GIOP_Message_Base::out_stream_`[protected]`

| Buffer where the request is placed.

TAO_GIOP_Message_Generator_Parser_Impl TAO_GIOP_Message_Base::tao_giop_impl_`[private]`

| All the implementations of GIOP message generator and parsers.

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

- GIOP_Message_Base.h
- GIOP_Message_Base.cpp