Initial commit

1 files changed, 32 insertions, 0 deletions

diff --git a/sys/ki/kifchan.x b/sys/ki/kifchan.x
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--- /dev/null
+++ b/sys/ki/kifchan.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include <config.h>
+include "ki.h"
+
+# KI_FREECHAN -- Free a channel descriptor slot.  Decrement the reference
+# count on the associated node descriptor slot; when the ref count reaches
+# zero, free the node descriptor if the error bit is set.  If the error
+# bit is not set the node descriptor is not freed because the kernel server
+# remains connected, ready for reuse.
+
+procedure ki_freechan (chan)
+
+int	chan			# kichan channel descriptor
+
+int	server, and()
+include	"kichan.com"
+include	"kinode.com"
+
+begin
+	server = k_node[chan]
+
+	# Server=0 if local node.
+	if (server > 0) {
+	    n_nrefs[server] = n_nrefs[server] - 1
+	    if (and (n_status[server], F_IOERR) != 0)
+		if (n_nrefs[server] == 0)
+		    n_status[server] = F_IOERR + F_REUSE
+	}
+	    
+	k_oschan[chan] = NULL
+end