[sane-devel] RE: (Big?) Problem with fork() in OSX

Jaeger, Gerhard gerhard@gjaeger.de
Tue, 17 Dec 2002 18:46:33 +0100

As the Plustek backend is not the only one that forks
a reader process, the question should be how can this be solved
for OSX?
Any ideas?
One might be the approach to have two versions one using
the fork and one without (USE_FORK i.e. nec.c)...

But I thought, that fork duplicates the entire process environment...


On Tuesday, 17. December 2002 15:33, Phil Barrett wrote:
> Beat Birkhofer wrote:
> > In plustek.c in the function sane_start() there's a fork(). Just
> > after calling this fork() the connection to the USB is broken
> > (IOService fails).
> If it's anything like the SCSI side, which I looked at a long while back,
> this is because the access to the interface is exclusively given to the
> thread that opened it. I had the HP (I think - it might have been another
> one) driver working fine until the point where it fork()ed to receive the
> scan data.
> Phil