The problems with both rvplayer and timidity comes
from the fact that Linux 2.1.120 now uses more logical
semantics wrt. to O_NONBLOCK (aka O_NDELAY).
O_NONBLOCK is now respected not only in open,
but also in read and write.
Timidity 0.2i can be cured with the attached patch.
Timidity with this patch also works under 2.0.x, btw.
<rant>
I've sent this patch ages ago to the Timidity author,
but never heard anything back.
</rant>
Binary only apps such as rvplayer are slightly more
annoying, but they can probably be worked around
by LD_PRELOAD'ing something like the following
(untested, requires the app to be dynamically
linked against glibc2, otherwise you loose).
#include <string.h>
#include <unistd.h>
#include <fcntlbits.h>
extern int __open(const char *pathname, int flags, mode_t mode);
extern int fcntl(int fd, int cmd, long arg);
int open(const char *pathname, int flags, mode_t mode)
{
int res, rstnblk = flags & O_NONBLOCK && !strcmp(pathname, "/dev/dsp");
res = __open(pathname, flags, mode);
if (res == -1 || !rstnblk)
return res;
fcntl(res, F_SETFL, fcntl(res, F_GETFL, 0) & ~O_NONBLOCK);
return res;
}
Tom
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