Re: [PATCH] Introduce O_CLOEXEC (take >2)



On Thu, 31 May 2007, Davide Libenzi wrote:

What I meant, was that the vast majority of MT+exec apps wants all their
fds (but an handfull, maybe) to be O_CLOEXEC. So a global,
non-inheritable, per-process flag seemed the most straightforward
solution.

I'm with Uli on this one. "Stateful" stuff is bad. It's essentially
impossible to handle with libraries - either the library would have to
explciitly always turn the state the way _it_ needs it, or the library
will do the wrogn thing.

For example, what about libraries that are used to set up stdin/stdout for
the forker?

This is not unlike floating point rounding. Having stateful rounding (like
the i387) is *stupid*. You want per-operation rounding (where *one* of the
choices may be "use default"). Exactly because libraries etc will need to
control their _own_ internal choices.

Linus
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