On 12/11/06, Ben Combee <[EMAIL PROTECTED]> wrote:
On 12/10/06, Lin George <[EMAIL PROTECTED]> wrote:
> In my current understanding, Palm OS 5.2 only supports one application
> (process) one thread -- means each process could only have one thread.
> Is my understanding correct?
You neither have multiple threads or multiple processes in standard Palm OS
programming. To switch applications, the current one ends, then the system
starts the new one.
There is a limited background thread capability exposed through the sound
stream APIs. Also, applications can register for notifications where their
routines will be called while other programs are running.
this is the official palmsource response.
there is however, the ability to run true threads on palmos - the API is system
use-only, however, it is really supposed to be used for small, simple tasks.
how do you think your sms messages get delivered in the background? some
developers may have been able to tune into this - but, its not official.
i know for sure; i use it to get more accurate timing for nilEvent processing
when doing animations and games. i dont know what the limitations are while
using the threads - for example; you may be restricted to a certain set of
API's and semaphore states in the callbacks.
official answer: no
un-official answer: yes, but - if you dont know how - forget it.
--
// Aaron Ardiri
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