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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:
Generated on Wed Jan 14 23:26:48 2004 for TAO by doxygen1.2.18