[linux-audio-dev] Lock Free Ringbuffer in C ?

[Paul Davis]

>but how do i handle this sensibly ?
>
>
>	res = sfifo_write(sf, &buf, j);
>	if(res != j)
>	{
>		printf("Write failed!\n");
>
>// eeek... no i dont want that...

there are several solutions, none of them particularly good. the best
is to wait on a FIFO. these provide a fast, 99% non-blocking way to
get 1 process to wake up another. the "real" solution needs to be
provided by the kernel, and futexes in 2.5/2.6 will be fairly
close. they are still not completely correct for our purposes, but
they will probably work OK.

--p