From: Eric Wong <normalperson@...>
Date: 2018-08-09T08:46:32+00:00
Subject: [ruby-core:88379] Re: [Ruby trunk Bug#14968] [PATCH] io.c: make all pipes nonblocking by default

usa@garbagecollect.jp wrote:
> BTW, Windows does not have nonblocking pipe.

Uh oh, really?  I saw rb_w32_set_nonblock() has is_pipe() check
and {Get,Set}NamedPipeHandleState calls, already, so that's
something else?

> Yes, we may be able to write emulation layer with overlapped
> I/O functions, but it's very difficult.

Maybe it's not a big deal to not have non-blocking pipes.

Does win32 have TOCTTOU race in signal handling?  All *nix
has this problem, but maybe it's a *nix-only problem.
I see you don't have ubf_list like thread_pthread.c has.

Thanks.

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