omnithread library

[Weicong Wang]

I think you could look into the Fresco thread library, it seems that
they have some similar ideas.
The fresco could be found in
http://www.caip.rutgers.edu/multimedia/Fresco/

===================
Brian Burton wrote:

> I'm porting the omnithread library to BeOS (http://www.be.com) and
> noticied that there are no classes in the omnithread.h file for
> acquiring and releasing mutexes and semaphores.  These really should
> be
> added since they would be far more convenient and less error prone
> than
> calling lock()/unlock() directly.  For example:
>
> class omni_mutex_lock
> {
> public:
>     omni_mutex_lock(omni_mutex *mutex)
>       : _mutex(mutex)
>     {
>         _mutex->lock();
>     }
>     ~omni_mutex_lock()
>     {
>         _mutex->unlock();
>     }
> private:
>     omni_mutex *_mutex;
> };
>
> A similar class could be added for semaphores (possibly with an
> overloaded constructor for doing a try_wait).
>
> With a class such as this, a mutex lock can be acquired and released
> by
> simply defining a variable of the omni_mutex_lock class:
>
>   omni_mutex mutex;
>
>    ...
>
>   int some_class::some_function()
>   {
>       omni_mutex_lock lock(&mutex);
>       if (some_flag)
>          return -1;
>       do_something_that_might_throw_exception();
>       return 0;
>   }
>
> The lock object's destructor would automatically unlock the mutex when
>
> the return statements are executed and when an exception is
> encountered.
>
> Are there already helper classes like this specified in another
> header?
> If not, then they should probably be added to omnithread.h to provide
> a
> standard version.
>
> All the best,
> ++Brian
>
> --
> Brian Burton                          Custom Software Development
> Burton Computer Corporation           Java, C++, Orbix, Tuxedo
> brian.burton@burton-computer.com      OO Consulting and Mentoring



--
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Wang Weicong    Rutgers, the State Univ. of New Jersey
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