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1 files changed, 50 insertions, 0 deletions

diff --git a/sys/ki/kclcpr.x b/sys/ki/kclcpr.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<mach.h>
+include	<config.h>
+include	"ki.h"
+
+# KCLCPR -- Close a connected subprocess.
+
+procedure kclcpr (pid, exit_status)
+
+int	pid			# channel descriptor
+int	exit_status		# exit status of the job
+
+int	server, inchan, outchan
+int	ki_sendrcv()
+include	"kichan.com"
+include	"kii.com"
+
+begin
+	# Possible if an abort occurs during the open.
+	if (pid <= 0) {
+	    exit_status = OK
+	    return
+	}
+
+	server = k_node[pid]
+
+	if (server == NULL) {
+	    call zclcpr (k_oschan[pid], exit_status)
+	} else {
+	    p_arg[1]  = k_oschan[pid]
+	    p_sbuflen = 0
+
+	    if (ki_sendrcv (server, KI_ZCLCPR, 0) == ERR)
+		exit_status = ERR
+	    else
+		exit_status = p_arg[1]
+	}
+
+	# The channel descriptor numbers of the two cds used for the i/o
+	# streams are encoded in the k_status field of the PID cd.
+
+	inchan  = k_status[pid] / MAX_CHANNELS
+	outchan = mod (k_status[pid], MAX_CHANNELS)
+
+	# Free the 3 channel descriptors used by the subprocess.
+	call ki_freechan (pid)
+	call ki_freechan (inchan)
+	call ki_freechan (outchan)
+end