On Fri, Feb 21, 2003 at 04:13:21PM +0100, Henning Meier-Geinitz wrote: > On Thu, Feb 20, 2003 at 04:14:51PM -0800, George Garvey wrote: > > Doesn't set global variables to NULL. > Right. I'm curious: Which frontend are you using? Most frontends don't > call sane_exit and then sane_init again, as far as I know, that's why > I'm asking.
I'm linking libsane-net into our in-house developed contact manager. It tends to be run by users all day long. The scanner will only occasionally be used. So I chose to call sane_exit after their "last" scan, since it may be hours (or minutes, no way of knowing) until they want to scan again. It may have been over cautious, but I was concerned about using up resources by leaving sane initialized. From a cursory look, it appears that a connection to saned is kept open, and may lock the scanner used (of that I'm not certain -- sane_close may free up the scanner -- I didn't investigate that closely enough to say). > Thanks for your patch. Can you try this alternative one (against > current CVS)? I think it's more obvious to initialize in sane_init. That works, too. The rest of the devices probably need to be checked for this, since as you say, normal frontends are scan only programs and don't do this.
