MPTask equivalent?

FROM : Trygve Inda
DATE : Wed Feb 20 20:03:46 2008

I am moving a rendering engine of sorts from Carbon to Cocoa. It is heavily
based on MPTasks and uses Carbon events to send messages back to the main
event handler (on the main thread) to handle things that are not thread
safe.

In Carbon, I would Post an event and call:

err = MPWaitOnQueue (pTaskInfo->mSignalQueueID, (void **)
&pTaskInfo->mQueueMessage, NULL, NULL, kDurationForever);
if (pTaskInfo->mQueueMessage == kMyTaskSignalAbort)
pTaskInfo->mAbort = true;

When the main thread would be done with the task, it would call:

MPNotifyQueue (pTaskInfo->mSignalQueueID, (void *) kMyTaskSignalContinue,
NULL, NULL);


Is there a good online reference to the Cocoa equivalent of this?

Any pointers as to how I should structure this in Cocoa?

How much of Cocoa is thread safe?

Thanks,

Trygve