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Re: NSMachPort thread safety
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Re: NSMachPort thread safety


  • Subject: Re: NSMachPort thread safety
  • From: "Adam R. Maxwell" <email@hidden>
  • Date: Sat, 1 Mar 2008 18:01:19 -0800


On Mar 1, 2008, at 5:44 PM, Kyle Sluder wrote:

On Sat, Mar 1, 2008 at 7:07 PM, Adam R. Maxwell <email@hidden> wrote:
Does this apply to NSMachPort as well?  I filed a doc bug hoping for
eventual clarification, but I'd rather know sooner rather than later
if the code has to be rewritten.  rdar://problem/5772256

You're misinterpreting "thread-safe"; you can't send messages to an NSPort on thread A from thread B. Since each thread is only manipulating its own NSPort, you're in the clear.

Thanks, but I think you're misinterpreting the example :). The object has a single NSMachPort ivar, added to the some thread's runloop. When a notification arrives on a different thread in processNotification:, it messages the NSMachPort. When the port's delegate receives handleMachMessage: it processes the notification since it's guaranteed to be on the correct thread.


--
adam
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  • Follow-Ups:
    • Re: NSMachPort thread safety
      • From: "Kyle Sluder" <email@hidden>
References: 
 >NSMachPort thread safety (From: "Adam R. Maxwell" <email@hidden>)
 >Re: NSMachPort thread safety (From: "Kyle Sluder" <email@hidden>)

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