Re: PROPOSAL: extend pipe() to support NULL argument.

From: Changli Gao
Date: Fri Jul 03 2009 - 03:40:44 EST


On Fri, Jul 3, 2009 at 3:15 PM, Amerigo Wang<xiyou.wangcong@xxxxxxxxx> wrote:
>
> If saving one fd really helps here, probably you want to
> save more, you will need a syscall like:
>
> Âint splice_without_new_fd(int infd, int outfd);
Do you know sendfile()? Its current implementation is buggy, and will
be blocked on outfd. Anyway, the above code is just a use case, there
are other cases sendfile can't cover.

>
> But splice(2) is designed to be as it is. You need to increase
> your fd limit, instead of saving one by pipe().
>
I don't agree with you. We should save resource as much as we can, and
not work around it.


--
Regardsï
Changli Gao(xiaosuo@xxxxxxxxx)
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