Messages in this thread |  | | Date | Tue, 22 May 2001 16:38:30 +0100 | From | Matthew Wilcox <> | Subject | Re: [RFD w/info-PATCH] device arguments from lookup, partion code |
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On Tue, May 22, 2001 at 04:31:37PM +0100, Alan Cox wrote: > > `the class of devices in question' was cryptographic devices, and possibly > > other transactional DSPs. I don't consider audio to be transactional. > > in any case, you can do transactional things with two threads, as long > > as they each have their own fd on the device. Think of the fd as your > > transaction handle. > > Thats a bit pathetic. So I have to fill my app with expensive pthread locks > or hack all the drivers and totally change the multi-open sematics in the ABI
huh?
void thread_init(void) { int fd = open("/dev/crypto"); real_thread_init(fd); }
where was that lock again?
and notice this idea is only for transactional things -- what transactional things do sound drivers do?
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