Re: Threading synchronization: does a primitive exists?
Re: Threading synchronization: does a primitive exists?
- Subject: Re: Threading synchronization: does a primitive exists?
- From: Heath Borders <email@hidden>
- Date: Thu, 05 May 2011 08:37:23 -0500
Try NSConditionLock. Its documentation should be pretty self-explanatory.
-Heath Borders
email@hidden
Twitter: heathborders
http://heath-tech.blogspot.com
On Thu, May 5, 2011 at 8:33 AM, eveningnick eveningnick
<email@hidden> wrote:
> Hello
> I have a thread A that spawns a thread B, and should stop, waiting
> before the thread B allows thread A to continue.
>
> In Windows, in a thread A, before spawning a thread B, i would create
> a synchronization "Event" primitive in the "non signaled" mode, the
> spawn a thread B, and call WaitForSingleObject(), waiting for thread B
> to switch the "Event" into the "signaled" mode, which would release
> the WaitForSingleObject() and allow the thread A to continue to
> operate.
>
> (WaitForSingleObject() freezes the thread, until the object that it is
> waiting for - e.g., an "Event" primitive - is switched into a
> "signaled" mode).
>
> In OS X i have no idea how to do that :S I guess it is impossible to
> do the same job using mutexes? Maybe some other primitives exist?
>
> I need this _only_ for debugging, it would greatly simplify my life. I
> am well aware that this is approach is deadlock-prone.
>
> Thanks for the response if i get one
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