Mail Archives: cygwin/2009/07/20/10:27:43
On Mon, Jul 20, 2009 at 01:57:59PM +0200, Corinna Vinschen wrote:
>On Jul 19 19:35, Christopher Faylor wrote:
>> On Tue, Jul 07, 2009 at 02:02:12PM -0400, Christopher Faylor wrote:
>> >On Mon, Jul 06, 2009 at 10:18:39PM -0400, Christopher Faylor wrote:
>> >>On Mon, Jul 06, 2009 at 07:03:11AM -0600, Eric Blake wrote:
>> >>>But on cygwin 1.7, when you attempt to create multiple writers to a single
>> >>>fifo, the second writer creates an fd just fine but then fails on any
>> >>>attempt to write to that fd:
>> >>
>> >>I see the problem but I don't know how to fix it yet. It may be a
>> >>couple of days before I can come up with a solution.
>> >
>> >Just an update: I now have a headache. Thanks again Microsoft for
>> >making it all so complicated. This is YA example of a feature (Windows
>> >Named Pipes) which behave 98% of the way you'd expect it to work. The
>> >2% is the killer.
>>
>> Just an update: @#$%^&*(!
>
>This sounds promising.
I did get Eric's test case working last night with only an addition of
one or two hundred lines of extra code. I ended up fixing a
long-standing bug in fhandler_base::read, and found a strange problem
where fd's are inexplicably changed to textmode. I haven't tracked that
one down yet.
Then, as I was drifting off to sleep, I realized that my fix only goes
75% of the way towards getting full fifo behavior. So, I probably still
won't be checking anything in anytime soon.
cgf
(Mr. Fifo)
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