Re: thread protocol modifiers

FROM : Ken Thomases
DATE : Sat Jan 05 08:36:12 2008

On Jan 4, 2008, at 7:06 PM, William Zumwalt wrote:

> #2) I make 3 calls to my server thread in sequence, so I marked all 
> 3 as
> (oneway void). After doing this I was able to click on a button in 
> my GUI
> while the thread was running, so I think the GUI was blocking w/ the 
> default
> (inout void) ... at least I think that's the default.
>
>
> However my problem now is that with all three marked as (oneway void)
> (sending async msgs), message #2 requires a few seconds to complete 
> while
> message #3 depends on message #2 before it can start, yet msg #3 is 
> done
> before msg #2 can finish. I've also seen once where they arrived out 
> of
> order.
>
>
> // from the client
>
> [server sendMsg1];
>
> [server sendMsg2];
>
> [server sendMsg3];
>
>
> Is there another way to call asynchronously, yet guarantee that the 
> messages
> arrive in order? Or someway to call w/o the GUI blocking for a server
> message return?


See here:
http://developer.apple.com/documentation/Cocoa/Conceptual/DistrObjects/Tasks/configuring.html

In particular, the paragraph that discusses 
setIndependentConversationQueueing:.

-Ken