Gerhard <quote>
1.1.1.42 Sense code 082B Presentation space integrity lost: Presentation space integrity lost (for example, cleared or changed) because of a transient condition, for example, because of a transient hardware error or an end-user action such as allowing presentation services to be used by the SSCP. </quote> This is used when there has been a change of session from LU-LU to SSCP-LU back to LU-LU. The primary LU needs to know that the data on the presentation space is not what the primary LU is entitled to expect. Thus, in response to an 082B, a complete refresh of the presentation space with an Erase/Write or Erase/Write-Alternate is going to be required. <quote> 1.1.1.27 Sense code 081B Receiver in transmit mode (a race condition): Normal-flow request received while the half-duplex contention state was not-receive, (*S,¬R), or while resources (such as buffers) necessary for handling normal-flow data were unavailable. (Contrast this sense code with sense code X'2004', which signals a protocol violation.) </quote> Thus 081B is related to half-duplex flip-flop. If you needed to handle this in your VTAM program, you dropped the baton! Chris Mason On Mon, 27 Jun 2011 12:13:50 -0400, Gerhard Postpischil <[email protected]> wrote: >On 6/27/2011 7:45 AM, Shmuel Metz (Seymour J.) wrote: >> AFAIK, there's nothing in VTAM that would be affected by a change in >> screen geometry. VTIOC is fairly small and TIOC is dead. Yes, TSO has >> multiple TCB's, but other than SM I'm not aware of any TSO code that >> is affected by screen geometry. It's ISPF that is the problem. > >I seem to recall a VTAM error code of 081B or 082B upon a screen >size change with local non-SNA terminals (my highly modified >NETSOL has specified recovery for those). Also the buffer sizes >and pools may impose constraints. > >I think you would find a problem whenever the geometry is >changed within any running program. > >> All of the plumbing is in place for a TSO command to recognize and >> respond to a change in geometry. > >As you pointed out, return codes from TSO macros need to be >checked, but unless the user switches to a smaller screen size, >an error may not be forthcoming, only garbage on the screen. > > >Gerhard Postpischil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
