CORBA 2.6 NO IDEA Avatar
  1. OMG Issue

CORBA26 — padding at the end of a non-fragmented 1.2 request message

  • Key: CORBA26-86
  • Legacy Issue Number: 3014
  • Status: closed  
  • Source: AT&T ( Sai-Lai Lo)
  • Summary:

    Suppose a GIOP 1.2 request message is sent for an operation with no
    argument. In this case the request body is empty because there is no

    Furthermore, the whole request message is non-fragmented, i.e. the
    2nd least significant bit of Flags in the request header is 0. Now if the
    request message header ends on a boundary which is not 8-byte
    aligned. Should the request message be extended with extra padding after the
    request message header to make the whole request message multiple of 8?

    I think the relevant statement is in section 15.4.1 (page 15-31):

    "For GIOP version 1.2, if the second least significant bit of Flags is 1,
    the sum the message_size value and 12 must be evenly divisible by 8"

    My intepretation of the statement is that the condition I just described
    does not meet this critera. Hence the message should not be padded to
    multiple of 8. It should just be ended with the end of the message header,
    just like previous GIOP versions.

    I'm asking for clarification on this issue because I'm seeing a different
    behaviour in another ORB implementation and would like to pre-empt any
    interoperability problem in future.

  • Reported: CORBA 2.3.1 — Tue, 9 Nov 1999 05:00 GMT
  • Disposition: Resolved — CORBA 2.6.1
  • Disposition Summary:

    see above

  • Updated: Fri, 6 Mar 2015 20:58 GMT