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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <mach.h>
include <config.h>
include "ki.h"
# KZWRMT -- Asynchronous write to a magtape file.
procedure kzwrmt (chan, buf, nbytes, offset)
int chan #I magtape channel
char buf[ARB] #I buffer containing data
int nbytes #I nbytes to write
long offset #I file offset
int server
int ki_send()
include "kichan.com"
include "kii.com"
begin
server = k_node[chan]
if (server == NULL) {
call zzwrmt (k_oschan[chan], buf, nbytes, offset)
return
}
# Ignore zero writes and requests on a node closed by an error.
if (nbytes <= 0) {
k_status[chan] = 0
return
}
# Send the request followed by the data block. We do not read anything
# back from the remote server until ZAWT is called. Set k_status[chan]
# to WRITE_IN_PROGRESS to tell ZAWT that an await call is needed.
p_arg[1] = k_oschan[chan]
p_arg[2] = nbytes
p_arg[3] = offset
if (ki_send (server, KI_ZFIOMT, MT_WR) == ERR)
k_status[chan] = ERR
else {
call ks_awrite (server, buf, nbytes)
call ks_await (server, k_status[chan])
}
end
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