Re: O_CLOEXEC

Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 12 Apr 2000 13:58:01 +0100 (BST)

> which automatically sets the FD_CLOEXEC flag for the new file
> descriptor. I've never heard a reason why this wasn't implemented.
> It could save quite a few system calls in various daemons and also the
> libc.

How many of them on critical performance paths. How many times would the
flag be tested and not acted on. Every condition costs

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