Communicating with VM/CMS Virtual Machines › Server Code: OPVMSV › WTO and GLV Message Format

WTO and GLV Message Format

The text strings presented to either the WTO service or the GLV update has data streams consisting of two or three components, separated by blanks.

However, the differences between the two are as follows:

• Only the WTO output has a message prefix in the beginning, as shown in the following sample WTO message format:

  zvmmsgid  VMuserid@VMnode  message_text
  

• GLV messages are appended with a terminator character, X'15', represented as (+) in the example, following the last text character, as shown in the following sample GLV message format:

  VMuserid@VMnode  message_text+
  

zvmmsgid

Displays the z/VM message ID.

VMuserid and VMnode

Displays the sending client's VM ID and VM node that were collected at connect time.

message_text

Displays the actual data string received by the client through the VM SMSG facility.

For example, the server receives the message “RECEIVING DOWNLOAD” from VM user CLIENTA at VM node SYSTEMA. The server uses the default zvmmsgid value. The final submission to the WTO service would be:

“OPS1371I  CLIENTA@SYSTEMA  RECEIVING DOWNLOAD”