flush(n) Tcl (7.5) flush(n)
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NAME
flush - Flush buffered output for a channel
SYNOPSIS
flush channelId
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DESCRIPTION
Flushes any output that has been buffered for channelId.
ChannelId must be a channel identifier such as returned by a
previous open or socket command, and it must have been
opened for writing. If the channel is in blocking mode the
command does not return until all the buffered output has
been flushed to the channel. If the channel is in
nonblocking mode, the command may return before all buffered
output has been flushed; the remainder will be flushed in
the background as fast as the underlying file or device is
able to absorb it.
SEE ALSO
open(n), socket(n)
KEYWORDS
blocking, buffer, channel, flush, nonblocking, output
Page 1 (printed 2/19/99)
