Mail Archives: cygwin-developers/2001/09/12/13:22:47
On Wed, Sep 12, 2001 at 07:21:04PM +0200, Corinna Vinschen wrote:
>On Wed, Sep 12, 2001 at 12:56:41PM -0400, Christopher Faylor wrote:
>> On Wed, Sep 12, 2001 at 06:48:12PM +0200, Corinna Vinschen wrote:
>> >On Wed, Sep 12, 2001 at 06:40:31PM +0200, Corinna Vinschen wrote:
>> >> On Tue, Sep 11, 2001 at 10:00:11PM +1000, Robert Collins wrote:
>> >> > + if (iswinnt)
>> >> > + InitializeCriticalSection (&criticalsection);
>> >> > + else
>> >> > + {
>> >> > + this->win32_obj_id =::CreateMutex (&sec_none_nih, false, NULL);
>> >> > + if (!win32_obj_id)
>> >> > + magic = 0;
>> >> > + }
>> >>
>> >> Could somebody give me a short hint why we're using critical
>> >> sections on NT only? I need some three word only description...
>> >> something memorable...
>> >
>> >Whoops, is the fact that TryEnterCriticalSection() is only
>> >available since NT4 the reason, perhaps???
>>
>> Apparently.
>>
>> Cygwin's muto class actually does a sort of critical section and has
>> TryEnterCriticalSection capabilities.
>>
>> I don't think that mutos are necessarily general purpose enough for
>> this but maybe we could do something similar. Or we could probably
>> roll our own version of TryEnterCriticalSection.
>
>Don't worry. I'm just asking to know how to name the new wincap
>flag for that stuff. :-)
I *am* concerned about YA performance hit on Windows 9x, though. I'd like
to avoid that if possible.
cgf
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