$ChildSig Event

9.8, PLBCMP GUI Only

 

The $ChildSig event is only posted to a specific PWS child process when a PLB program executes the RUNTIME object method named 'SignalChild' executing under the PWS runtime.

Note the following:

  1. This event is a simple signal with no event operands including result, modifier, and character.

  2. This event can only be generated using the RUNTIME object 'SignalChild' method. This event is not generated using the EVENTSEND instruction.

  3. This event is only generated and dispatched when using the PL/B Web Server runtime.

  4. The ChildSig event is referenced using an event value of thirty-three (33). The equated label in PLBEQU.INC for this event is $CHILDSIG.

  5. This event allows one PWS child process to signal a second PWS child process. Any data interactions between the two PWS child processes is must be done using PLB program IPC techniques like disk IO or COMFILE sockets.

 

 

See Also: EVENTREGISTER, Object Events, Object IO Instructions, Object Definitions

 


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