31 Mar
2005
31 Mar
'05
1:06 p.m.
Rene W. Olsen wrote:
I have been thinking about the sharing msgport and
signal that is used in the open device
and I dont really think its a good idea to share.. but where do I store the allocated
stuff ?
You cannot easily share a signal between openers because the signal is
task-specific, i.e. if you open from two different tasks then this will
not work at all, not even if both tasks use the same signal bit because
you cannot have a message port owned by two tasks.
Can I clone the libray base and return a clone to the
user every time open lib is called?
It might be a better idea to have a "server process" that does the
device handling, and communicate via messages with any opener. If you
need to have opener-specific data, it might also be a better idea to do
this in the interface instead of the library base - this is directly
supported by the system and not as hacky in nature as cloning a library
base.
Regards,
--
Hans-Joerg Frieden
Technical Director, AmigaOS 4.0 Project
Hyperion Entertainment
Email: Hans-JoergF(a)hyperion-entertainment.com
Web: http://www.hyperion-entertainment.biz/