FTAM 1.0 MAILINGLIST Avatar
  1. OMG Issue

FTAM — Cannot transfer files if Files have same associated_session

  • Key: FTAM-18
  • Legacy Issue Number: 4227
  • Status: closed  
  • Source: DSTC ( Ted McFadden)
  • Summary:

    This issue concerns the operation:
    FileTransferSession::transfer(in File src, in File dest)

    and the associated operations append and insert.

    As described in section 4.5.2, in the transfer implementation, the
    FileTransferSession must first determine whether it is associated with
    the src or dest File in order to set up an active or passive
    connection.

    If it is the source, it sets up an active connection and then calls
    `transfer' again on the destination File's associated_session.
    Unfortunately, when both the src and dest files have the same_session,
    a FileTransferSession will always consider itself the source and
    unwanted recursion will result.

    The spec could say its forbidden to transfer files associated with the
    same FileTransferSession but this is extreme.

    It is also problematic to guarantee an implementation can detect this
    situation, as the FileTransferSession interface has no identity
    operations and a false return from is_equivalent is inconclusive. (The
    is_equivalent problem is also raised in Issue 4183).

    As with issue 4183, this issue could be resolved by not using the same
    transfer method to both initiate sending and receiving of data.

  • Reported: FTAM 1.0b1 — Wed, 21 Mar 2001 05:00 GMT
  • Disposition: Resolved — FTAM 1.0
  • Disposition Summary:

    The resolution for issues 4177, and 4209 resolves this issue.

  • Updated: Fri, 6 Mar 2015 21:48 GMT