[ITK] [ITK-users] Readers/writer lock in ITK?

[Simon Alexander]

Hi Taylor,


shared_mutex was rejected from c++ 2011, but is a target for c++ 2014 if I
understand correctly.

Boost synchronization probably covers what you need:
http://www.boost.org/doc/libs/1_55_0/doc/html/thread/synchronization.html


If you are avoiding boost for some reason, There are reference
implementations like :
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2406.html#shared_mutex


hope that helps!



On Fri, Mar 21, 2014 at 10:51 AM, Taylor Braun-Jones <taylor at braun-jones.org
> wrote:

> Hi Luis,
>
> I could implement a readers/writer lock on top of itk::Semapore, but I'd
> rather not. To quote Wikipedia:
>
>     Readers-writer locks are usually constructed on top of mutexes and
> condition variables, or on top of semaphores.
>
> I'm looking for something equivalent to these higher level classes that Qt
> provides (without having to pull in a Qt dependency):
>
>     http://qt-project.org/doc/qt-4.8/qreadwritelock.html
>     http://qt-project.org/doc/qt-4.8/qreadlocker.html
>     http://qt-project.org/doc/qt-4.8/qwritelocker.html
>
> Thanks,
>
> Taylor
>
>
> On Fri, Mar 21, 2014 at 10:21 AM, Luis Ibanez <luis.ibanez at kitware.com>wrote:
>
>> Hi Taylor,
>>
>> Could the ITK Semaphore class
>>
>> http://www.itk.org/Doxygen318/html/classitk_1_1Semaphore.html
>>
>>
>> help with what you are trying to do ?
>>
>>
>> Please let us know,
>>
>>     Thanks
>>
>>           Luis
>>
>>
>>
>> On Fri, Mar 21, 2014 at 9:52 AM, Taylor Braun-Jones <
>> taylor at braun-jones.org> wrote:
>>
>>> Hello Insight-users,
>>>
>>> I have a code base that has standardized on itk::*MutexLock classes for
>>> thread protection, which work great. Now I have a use case that requires a
>>> more sophisticated readers/writer lock [1] but I don't see anything in ITK
>>> which seems surprising to me. Have I missed something? Any suggestions?
>>>
>>> Thanks!
>>>
>>> - Taylor
>>>
>>> [1] https://en.wikipedia.org/wiki/Readers-writer_lock
>>>
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