Compaq AA-PWCBD-TE Uživatelský manuál stáhnout pdf (Strana 137)

Sample DECTPU Procedures

A.4 Running DECTPU from an OpenVMS Subprocess

Example A–4 shows one way of running DECTPU from a subprocess. It also

shows how to move to or from the subprocess.

Example A–4 Procedure to Run DECTPU from a Subprocess

!DCL command procedure to run DECTPU from subprocess

!Put $ e = "@keptedit"

!in your login.com. This spawns the editor the first time

!and attaches to it after that. I have defined a key to be

!"attach" so it always goes back to the parent.

$ tt = f$getdvi("sys$command","devnam") - "_" - "_" - ":"

$ edit_name = "Edit_" + tt

$ priv_list = f$setprv("NOWORLD, NOGROUP")

$ pid = 0

$10$:

$ proc = f$getjpi(f$pid(pid), "PRCNAM")

$ if proc .eqs. edit_name then goto attach

$ if pid .ne. 0 then goto 10$

$spawn:

$ priv_list = f$setprv(priv_list)

$ write sys$error "[Spawning a new Kept Editor]"

$ define/nolog sys$input sys$command:

$ t1 = f$edit(p1 + " " + p2 + ""+p3+""+p4+""

+ p5 + " " + p6 + " " + p7 + " " + p8,"COLLAPSE")

$ spawn/process="’’edit_name’" /nolog edit/tpu ’t1’

$ write sys$error "[Attached to DCL in directory ’’f$env("DEFAULT")’]"

$ exit

$attach:

$ priv_list = f$setprv(priv_list)

$ write sys$error "[Attaching to Kept Editor]"

$ define/nolog sys$input sys$command:

$ attach "’’edit_name’"

$ write sys$error "[Attached to DCL in directory ’’f$env("DEFAULT")’]"

$ exit

Sample DECTPU Procedures A–7

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Compaq AA-PWCBD-TE Uživatelský manuál Strana 137