>Kernel people: is poll() less effective than using SND_PCM_ASYNC and a >signal handler for low-latency sound? I'm guessing it is, but there
at the risk of endlessly repeating myself, SIGIO is basically useless. your handler executes in signal-handling context, and can do very, very little. not even all system calls are legal in this context. SIGIO is basically a "poor man's thread system", and not much more. also, poll wakes a task quicker than a signal. this is easy to establish empirically. from a theoretical perspective, signal handling is a much more complex situation that simply continuing on with whatever function was blocked. --p ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
