Re: Can I create a thread with a runloop and a dispatch queue?
Re: Can I create a thread with a runloop and a dispatch queue?
- Subject: Re: Can I create a thread with a runloop and a dispatch queue?
- From: Ken Thomases <email@hidden>
- Date: Thu, 03 Oct 2013 16:04:26 -0500
On Oct 3, 2013, at 3:55 PM, Jens Alfke wrote:
> On Oct 3, 2013, at 1:23 PM, Ken Thomases <email@hidden> wrote:
>
>> I'm not seeing how the above API would be easier/cleaner to implement if run loops had queues.
>
> Because the implementation could initially capture the current dispatch queue (by calling dispatch_get_current_queue) and then when the block is ready to be called, invoke it via dispatch_async on that captured queue. Currently this works only if the method was called from a dispatch queue, but will break if called otherwise, i.e. from normal runloop-based code, because dispatch_get_current_queue will return NULL.
Well, you've gone from requesting the ability to assign a queue to a run loop to assuming that all run loops would have queues. And your code already dispatches to the calling thread's run loop, right? Why not, if dispatch_get_current_queue() returns NULL, fall back to the current approach of targeting the run loop?
Regards,
Ken
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