F$CONTEXT and F$PID

Use F$PID to locate selected processes.

$LOOP:

$ PID = F$PID( CTX )

$ IF PID .EQS. “” THEN GOTO EXIT_LOOP

$ statement(s)

$ GOTO LOOP

$EXIT_LOOP:

$ IF F$TYPE( CTX ) .EQS. “PROCESS_CONTEXT” THEN -

$ TMP = F$CONTEXT( “PROCESS”, CTX, “CANCEL” )

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Once you have set up your selection context, pass that context symbol to F$PID() and invoke it in a loop until a null PID string if returned.

By default, F$PID() will return the PIDs of all processes in the system (local to a cluster node).

To locate all processes in the cluster matching the other selection criteria, include an F$CONTEXT invocation specifying an item code of NODENAME, a matching string of “*” and a match criterion of “EQL”.