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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
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