Re: _exit(), tcflush() and all that (Re: Problem: shell prompt doesn't

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue May 23 2000 - 11:22:13 EST

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In reply to: Ishikawa: "_exit(), tcflush() and all that (Re: Problem: shell prompt doesn't return ...)"
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> It turns out that the linux _exit() was closing the tty and waiting for the
> tty output to drain before finishing the process cleanly.

The tty output drain rules are defined by POSIX 1003.1g. In some cases
it includes a time waiting in close() (thus in _exit())

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