> That way, platforms supporing pthreads
>and OS/2 could use threads whereas the older platforms would continue
>to use fork(). Yuri, is this what your working on?
yes, because there are a couple of problems with fork() under OS/2: 1) not as efficient as under Unix
(better to avoid it), 2) forked process doesn't inherit all parent handles; to be correct, it doesn't inherit at
least system semaphores, and semaphores are needed to syncronize access to the current SCSI
low-level functions. Without this semaphores, I experienced system crash with the Umax backend, and I
know that something similar happens also on other systems.
Until now I have corrected the Umax and Mustek backends, and I will submit patches to SANE 0.73 ASAP
(now I'm too busy with my job). I have also minor patches to code for parallel port, for the epson backend
and to the microtek2.
Bye,
Yuri Dario
/*
* member of TeamOS/2 - Italy
*/
-- Source code, list archive, and docs: http://www.mostang.com/sane/ To unsubscribe: echo unsubscribe sane-devel | mail majordomo@mostang.com