[zeromq-dev] Fwd: Re: zmq_poll stops expiring timeout in virtualized Windows 7

Pieter Hintjens ph at imatix.com
Thu Nov 7 17:46:23 CET 2013


Hang on, the Travis build fails with:

clock.cpp:45:19: error: ISO C++ forbids declaration of ‘ULONGLONG’
with no type [-fpermissive]
clock.cpp:45:19: error: typedef ‘ULONGLONG’ is initialized (use
decltype instead)
clock.cpp:45:21: error: ‘f_compatible_get_tick_count64’ was not
declared in this scope
clock.cpp:49:1: error: ‘ULONGLONG’ does not name a type
clock.cpp:64:1: error: ‘f_compatible_get_tick_count64’ does not name a type
clock.cpp:77:8: error: ‘f_compatible_get_tick_count64’ does not name a type

Could you fix those?

For backporting to 3.2.x we need a Jira issue and (if possible) a test
case, thanks.

-Pieter

On Thu, Nov 7, 2013 at 5:26 PM, Felipe Farinon
<felipe.farinon at powersyslab.com> wrote:
> Thank you. Could you backport it to 3.2.x, please?
> It's nice to contribute for the first time. I hope I can help improving
> zeromq's quality.
>
> Em 07/11/2013 14:13, Pieter Hintjens escreveu:
>
> OK, merged :)
>
>
> On Thu, Nov 7, 2013 at 5:10 PM, Felipe Farinon
> <felipe.farinon at powersyslab.com> wrote:
>>
>> https://github.com/zeromq/libzmq/pull/742
>>
>> Em 06/11/2013 11:14, Pieter Hintjens escreveu:
>>
>> Felipe,
>>
>> If you want to, please make a pull request with the change.
>>
>> Thanks
>> Pieter
>>
>>
>> On Wed, Nov 6, 2013 at 2:05 PM, Felipe Farinon
>> <felipe.farinon at powersyslab.com> wrote:
>>>
>>> So, is there any interest in fixing this?
>>>
>>>
>>> -------- Mensagem original --------
>>> Assunto: Re: [zeromq-dev] zmq_poll stops expiring timeout in virtualized
>>> Windows 7
>>> Data: Tue, 29 Oct 2013 10:19:08 -0200
>>> De: Felipe Farinon <felipe.farinon at powersyslab.com>
>>> Responder a: ZeroMQ development list <zeromq-dev at lists.zeromq.org>
>>> Para: zeromq-dev at lists.zeromq.org
>>>
>>>
>>> We can make our own GetTickCount64 built around GetTickCount and call it
>>> when GetTickCount64 is not available in Kernel32.dll. This code supports
>>> Windows 2000 or greater, whereas calling GetTickCount64 directly from
>>> Kernel32.dll supports only Vista or greater.
>>>
>>> static DWORD s_wrap = 0;
>>> static DWORD s_lastTick = 0;
>>> static std::mutex s_wrapMutex;
>>>
>>> ULONGLONG MyGetTickCount64()
>>> {
>>>     std::unique_lock<std::mutex>_(wrapMutex);
>>>     DWORD currentTick = ::GetTickCount();
>>>     if (currentTick < s_lastTick)
>>>         ++s_wrap;
>>>
>>>     s_lastTick = currentTick;
>>>     return (static_cast<ULONGLONG>(s_wrap) << 32) + currentTick;
>>> }
>>>
>>>
>>> Em 24/10/2013 16:19, Felipe Farinon escreveu:
>>>
>>> Unfortunately, GetTickCount64 is only supported on Windows Vista or
>>> greater.
>>>
>>> Em 21/10/2013 16:47, Felipe Farinon escreveu:
>>>
>>> GetTickCount64 would solve these problems, since it returns the numbers
>>> of millisenconds since the machine has started.
>>>
>>> Em 16/10/2013 12:47, Steven McCoy escreveu:
>>>
>>> On 16 October 2013 10:25, Laurent Alebarde <l.alebarde at free.fr> wrote:
>>>>
>>>> A simplier approach is to encapsulate the standard clock of your choice
>>>> and save in a static member the value of the last get. Then if the standard
>>>> clock goes back in time, you return the saved value + 1.
>>>
>>>
>>> For clock drift this is fine, one doesn't even have to bother with the
>>> increment for many cases.  However there can be major problems with NTP,
>>> daylight savings, and suspend/hibernation states.
>>>
>>> --
>>> Steve-o
>>>
>>>
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>>
>>
>>
>> --
>> -
>> Pieter Hintjens
>> CEO of iMatix.com
>> Founder of ZeroMQ community
>> blog: http://hintjens.com
>>
>>
>> _______________________________________________
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>> zeromq-dev at lists.zeromq.org
>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>
>>
>>
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>>
>
>
>
> --
> -
> Pieter Hintjens
> CEO of iMatix.com
> Founder of ZeroMQ community
> blog: http://hintjens.com
>
>
> _______________________________________________
> zeromq-dev mailing list
> zeromq-dev at lists.zeromq.org
> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>
>
>
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>



-- 
-
Pieter Hintjens
CEO of iMatix.com
Founder of ZeroMQ community
blog: http://hintjens.com



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