🚀 go-pugleaf

William A. McKee <wamckee@msn.com> wrote:
>What about OS 9 ?

Multiprocesser Services.

>"David M. Palmer" <dmpalmer@email.com> wrote in message
>> In article <3d15d1c0$1_2@aeinews.>, William A. McKee <wamckee@msn.com>
>> wrote:
>>
>> > How do you guarantee mutual exclusion with an Apple API or PowerPlant.
>I
>> > have an ISR that gets called by Open Transport and I don't want
>collisions
>> > when accessing the same data when handling the ISR routine.
>>
>> Under OS X, you can use the POSIX mutex libraries:
>>
>> % man -k mutex
>> pthread_mutex_destroy(3) - free resources allocated for a mutex
>> pthread_mutex_init(3)    - create a mutex
>> pthread_mutex_lock(3)    - lock a mutex
>> pthread_mutex_trylock(3) - attempt to lock a mutex without blocking
>> pthread_mutex_unlock(3)  - unlock a mutex
>> pthread_mutexattr_init(3), pthread_mutexattr_destroy(3),
>> pthread_mutexattr_setprioceiling(3),
>> pthread_mutexattr_getprioceiling(3), pthread_mutexattr_setprotocol(3),
>> pthread_mutexattr_getprotocol(3), pthread_mutexattr_settype(3),
>> pthread_mutexattr_gettype(3) - mutex attribute operations
-- 
Ray Fischer         Most people, sometime in their lives, stumble across truth. 
rfischer@sonic.net  Most jump up, brush themselves off, and hurry on about
		    their business as if nothing had happened.    -- Churchill