Re: pipe handling errors

[Christopher Faylor <cgf-use-the-mailinglist-please@cygwin.com>]

On Wed, Jul 16, 2014 at 12:44:25PM +0000, Nellis, Kenneth wrote:
>From: Christopher Faylor
>>On Tue, Jul 15, 2014 at 06:05:27PM -0400, Christopher Faylor wrote:
>>>Yes, I saw that, but I can't duplicate the problem with that command sequence.
>>
>>I took a stab at another change which may ameliorate the problem.  Please try the latest snapshot.
>
>Indeed, with this snapshot I was not able to reproduce the problem. Thank you!
>
>Cygwin64> uname -srvmo
>CYGWIN_NT-6.1 1.7.31s(0.272/5/3) 20140716 11:15:29 x86_64 Cygwin

Good to hear.  Thanks for confirming.

For the curious, I increased the size of the signal pipe buffer.  I
should have done that when I made signal pipes "nowait" to work around
problems with gdb a couple of releases ago.  I also made the signal
sender retry if WriteFile returns success but the number of bytes sent
was not what was requested (since these are message-style pipes the
size should always be either zero or correct).

Increasing the size of the buffer should have been enough to fix the
problem but, when possible, I like to use two forms of protection when I
fix a bug.

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