You are trying to over-think the situation and you've received good
information in response to your prior e-mails.
Palm OS has one foreground user task. But other programs can and do
get called in the background in response to Launch codes and
Notifications. So you need read the documentation on those two, and
understand them.
In addition, as Ben said, you can register for call backs for the
sound manager and take advantage of the system thread that the sound runs in.
With Palm OS 5.4, you can also register for a TCP/IP call back and do
processing when a TCP/IP send/receive occurs and take advantage of
another system thread.
Also I find your e-mails virtually unreadable and you need to send
them as plain text!
Roger Stringer
At 03:15 AM 12/12/2006, you wrote:
On 12/12/06, Lin George
<<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]> wrote:
Thanks Trevor! Sorry I may make your confused. What I mean is not to
verify whether multithread exists on Palm OS 5.2 But to discuss
1. whether there are any approaches to share information (like
someone mentioned, global memory could be used for this purpose, is
that correct?) between different processes
2. and synchronize the processes' operations (are there any
approaches like Linux similar mutex?).
Could you kindly comment on the two questons above please? Thanks again.
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