flush(n) - phpMan

flush(n)                              Tcl Built-In Commands                              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 an identifier for an open channel such as a Tcl standard channel (stdout
       or stderr), the return value from an invocation of open or socket,  or  the  result  of  a
       channel  creation  command provided by a Tcl extension.  The channel must have been opened
       for writing.

       If the channel is in blocking mode the command does not return until all the buffered out-
       put  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.

EXAMPLE
       Prompt for the user to type some information in on the console:
              puts -nonewline "Please type your name: "
              flush stdout
              gets stdin name
              puts "Hello there, $name!"


SEE ALSO
       file(n), open(n), socket(n), Tcl_StandardChannels(3)


KEYWORDS
       blocking, buffer, channel, flush, nonblocking, output



Tcl                                            7.5                                       flush(n)

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