The routine obtains the process identification number of the parent process and returns the value in PID.

CALL PSX_GETPPID( PID, STATUS )

PID = INTEGER (Returned)

STATUS = INTEGER (Given)

• If a program that calls this routine is run several times, then unlike GETPID, it will always return the same process ID as all the processes will have the same parent.

• POSIX standard (1988), section 4.1.1

Copyright (C) 1991 Science & Engineering Research Council