38 lines
1.2 KiB
Plaintext
38 lines
1.2 KiB
Plaintext
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'\"
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'\" Copyright (c) 1993 The Regents of the University of California.
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'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
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'\"
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'\" See the file "license.terms" for information on usage and redistribution
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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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'\"
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'\" SCCS: @(#) flush.n 1.9 96/02/15 20:02:05
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'\"
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.so man.macros
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.TH flush n 7.5 Tcl "Tcl Built-In Commands"
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.BS
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'\" Note: do not modify the .SH NAME line immediately below!
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.SH NAME
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flush \- Flush buffered output for a channel
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.SH SYNOPSIS
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\fBflush \fIchannelId\fR
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.BE
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.SH DESCRIPTION
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.PP
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Flushes any output that has been buffered for \fIchannelId\fR.
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\fIChannelId\fR must be a channel identifier such as returned by a previous
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\fBopen\fR or \fBsocket\fR command, and it must have been opened for writing.
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.VS
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If the channel is in blocking mode the command does not return until all the
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buffered output has been flushed to the channel. If the channel is in
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nonblocking mode, the command may return before all buffered output has been
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flushed; the remainder will be flushed in the background as fast as the
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underlying file or device is able to absorb it.
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.VE
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.SH "SEE ALSO"
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open(n), socket(n)
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.SH KEYWORDS
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blocking, buffer, channel, flush, nonblocking, output
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