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authorJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
committerJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
commit40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch)
tree4464880c571602d54f6ae114729bf62a89518057 /sys/etc/prclose.x
downloadiraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'sys/etc/prclose.x')
-rw-r--r--sys/etc/prclose.x32
1 files changed, 32 insertions, 0 deletions
diff --git a/sys/etc/prclose.x b/sys/etc/prclose.x
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+++ b/sys/etc/prclose.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include <config.h>
+include <syserr.h>
+include <prstat.h>
+
+# PRCLOSE -- Close a connected subprocess. Send the command "bye" to the
+# child to initiate process shutdown, then close the IPC channels and
+# wait for the child to terminate, returning the termination status to
+# our caller. Note that process shutdown may take an arbitrarily long
+# time, depending on the number and nature of ONEXIT procedures posted by
+# tasks in the the child process.
+
+int procedure prclose (pid)
+
+int pid # process-id of child process
+
+int child
+int pr_findproc(), prclcpr()
+include "prc.com"
+errchk syserr
+
+begin
+ child = pr_findproc (pid)
+ if (child == ERR)
+ call syserr (SYS_PRNOTFOUND)
+
+ if (pr_status[child] != P_DONE && pr_status[child] != P_DEAD)
+ call putline (pr_outfd[child], "bye\n")
+
+ return (prclcpr (pid))
+end