TAO::PICurrent_Guard Class Reference

Class used to make copying between request scope current and thread scope current exception-safe. More...

#include <PICurrent_Guard.h>

List of all members.

Public Member Functions

 PICurrent_Guard (TAO_ServerRequest &server_request, bool tsc_to_rsc)
 Constructor.
 ~PICurrent_Guard (void)
 Destructor.

Private Attributes

PICurrent_Impl * src_
 The PICurrent implementation whose slot table will be copied.
PICurrent_Impl * dest_

Detailed Description

Class used to make copying between request scope current and thread scope current exception-safe.

Since copies between the request scope current and thread scope current must also occur if an exception is thrown, e.g. made available to the send_exception() interception points, the "guard" idiom is used to make this action exception-safe.

Note:
This Guard class is only used on the server side.

Constructor & Destructor Documentation

TAO::PICurrent_Guard::PICurrent_Guard ( TAO_ServerRequest server_request,
bool  tsc_to_rsc 
)

Constructor.

This constructor sets up this guard to copy the data held in a given PICurrent when transitioning from that PICurrent's scope to another scope (e.g. request scope to thread scope transition immediately following receive_request_service_contexts() on server side).

Parameters:
tsc_to_rsc true when copying TSC slot table to RSC slot table, i.e. after target operation completes.
TAO::PICurrent_Guard::~PICurrent_Guard ( void   ) 

Destructor.

The destructor copies (a logical copy whenever possible) data held in a given PICurrent when transitioning from one PICurrent scope to another immediately before any ending interception points are invoked, and after the starting and intermediate (if any) interception points are invoked.


Member Data Documentation

PICurrent_Impl* TAO::PICurrent_Guard::dest_ [private]

The PICurrent implementation whose slot table will be filled with the contents of another PICurrent's slot table.

PICurrent_Impl* TAO::PICurrent_Guard::src_ [private]

The PICurrent implementation whose slot table will be copied.


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