From 093b87878bb1fabb2077d412c46cfd9b15998f8d Mon Sep 17 00:00:00 2001 From: Taylor Holberton Date: Thu, 12 Oct 2017 20:28:30 -0400 Subject: added PCM_NONBLOCK macro --- src/pcm.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'src/pcm.c') diff --git a/src/pcm.c b/src/pcm.c index ef38c9c..7a67cfe 100644 --- a/src/pcm.c +++ b/src/pcm.c @@ -818,9 +818,13 @@ struct pcm_params *pcm_params_get(unsigned int card, unsigned int device, snprintf(fn, sizeof(fn), "/dev/snd/pcmC%uD%u%c", card, device, flags & PCM_IN ? 'c' : 'p'); - fd = open(fn, O_RDWR); + if (flags & PCM_NONBLOCK) + fd = open(fn, O_RDWR | O_NONBLOCK); + else + fd = open(fn, O_RDWR); + if (fd < 0) { - fprintf(stderr, "cannot open device '%s'\n", fn); + fprintf(stderr, "cannot open device '%s': %s\n", fn, strerror(errno)); goto err_open; } @@ -1073,7 +1077,12 @@ struct pcm *pcm_open(unsigned int card, unsigned int device, flags & PCM_IN ? 'c' : 'p'); pcm->flags = flags; - pcm->fd = open(fn, O_RDWR); + + if (flags & PCM_NONBLOCK) + pcm->fd = open(fn, O_RDWR | O_NONBLOCK); + else + pcm->fd = open(fn, O_RDWR); + if (pcm->fd < 0) { oops(pcm, errno, "cannot open device '%s'", fn); return pcm; -- cgit v1.2.3