On Thu, 20 Mar 2003, Takashi Iwai wrote: > At Thu, 20 Mar 2003 10:02:06 +0100, > Kristof Pelckmans wrote: > > > > I wonder how you know that the number you assign is not in use... > > well, there is no guarantee for that. > > i think it would be more understandable to have the string type ipc > key, such as > > pcm.dmix { > type dmix > ipc_key_str /usr/alsa/foo > ... > } > > which generates an ipc key via ftok().
That's a question. This is a quote from the ftok() man page: "Of course no guarantee can be given that the resulting key_t is unique." I think that the best solution is to create a communication file with information about used unique IPC key and add a verification that used IPC semaphores and IPC areas are ours. Jaroslav ----- Jaroslav Kysela <[EMAIL PROTECTED]> Linux Kernel Sound Maintainer ALSA Project, SuSE Labs ------------------------------------------------------- This SF.net email is sponsored by: Tablet PC. Does your code think in ink? You could win a Tablet PC. Get a free Tablet PC hat just for playing. What are you waiting for? http://ads.sourceforge.net/cgi-bin/redirect.pl?micr5043en _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel