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-rw-r--r--src/modules/alsa/alsa-sink.c22
-rw-r--r--src/modules/alsa/alsa-source.c28
2 files changed, 39 insertions, 11 deletions
diff --git a/src/modules/alsa/alsa-sink.c b/src/modules/alsa/alsa-sink.c
index e7925902..46562cbd 100644
--- a/src/modules/alsa/alsa-sink.c
+++ b/src/modules/alsa/alsa-sink.c
@@ -401,6 +401,7 @@ static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle
snd_pcm_sframes_t n;
size_t n_bytes;
int r;
+ pa_bool_t after_avail = TRUE;
/* First we determine how many samples are missing to fill the
* buffer up to 100% */
@@ -484,6 +485,9 @@ static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle
if (PA_UNLIKELY((err = pa_alsa_safe_mmap_begin(u->pcm_handle, &areas, &offset, &frames, u->hwbuf_size, &u->sink->sample_spec)) < 0)) {
+ if (!after_avail && err == -EAGAIN)
+ break;
+
if ((r = try_recover(u, "snd_pcm_mmap_begin", err)) == 0)
continue;
@@ -494,9 +498,12 @@ static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle
if (frames > pa_mempool_block_size_max(u->sink->core->mempool)/u->frame_size)
frames = pa_mempool_block_size_max(u->sink->core->mempool)/u->frame_size;
- if (frames == 0)
+ if (!after_avail && frames == 0)
break;
+ pa_assert(frames > 0);
+ after_avail = FALSE;
+
/* Check these are multiples of 8 bit */
pa_assert((areas[0].first & 7) == 0);
pa_assert((areas[0].step & 7)== 0);
@@ -617,6 +624,7 @@ static int unix_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle
for (;;) {
snd_pcm_sframes_t frames;
void *p;
+ pa_bool_t after_avail = TRUE;
/* pa_log_debug("%lu frames to write", (unsigned long) frames); */
@@ -634,17 +642,23 @@ static int unix_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle
frames = snd_pcm_writei(u->pcm_handle, (const uint8_t*) p + u->memchunk.index, (snd_pcm_uframes_t) frames);
pa_memblock_release(u->memchunk.memblock);
- if (frames == 0)
- break;
-
if (PA_UNLIKELY(frames < 0)) {
+ if (!after_avail && (int) frames == -EAGAIN)
+ break;
+
if ((r = try_recover(u, "snd_pcm_writei", (int) frames)) == 0)
continue;
return r;
}
+ if (!after_avail && frames == 0)
+ break;
+
+ pa_assert(frames > 0);
+ after_avail = FALSE;
+
u->memchunk.index += (size_t) frames * u->frame_size;
u->memchunk.length -= (size_t) frames * u->frame_size;
diff --git a/src/modules/alsa/alsa-source.c b/src/modules/alsa/alsa-source.c
index 41bb768b..8a1fbe5f 100644
--- a/src/modules/alsa/alsa-source.c
+++ b/src/modules/alsa/alsa-source.c
@@ -391,6 +391,7 @@ static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled
snd_pcm_sframes_t n;
size_t n_bytes;
int r;
+ pa_bool_t after_avail = TRUE;
if (PA_UNLIKELY((n = pa_alsa_safe_avail(u->pcm_handle, u->hwbuf_size, &u->source->sample_spec)) < 0)) {
@@ -463,6 +464,9 @@ static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled
if (PA_UNLIKELY((err = pa_alsa_safe_mmap_begin(u->pcm_handle, &areas, &offset, &frames, u->hwbuf_size, &u->source->sample_spec)) < 0)) {
+ if (!after_avail && err == -EAGAIN)
+ break;
+
if ((r = try_recover(u, "snd_pcm_mmap_begin", err)) == 0)
continue;
@@ -473,9 +477,12 @@ static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled
if (frames > pa_mempool_block_size_max(u->source->core->mempool)/u->frame_size)
frames = pa_mempool_block_size_max(u->source->core->mempool)/u->frame_size;
- if (frames == 0)
+ if (!after_avail && frames == 0)
break;
+ pa_assert(frames > 0);
+ after_avail = FALSE;
+
/* Check these are multiples of 8 bit */
pa_assert((areas[0].first & 7) == 0);
pa_assert((areas[0].step & 7)== 0);
@@ -542,6 +549,7 @@ static int unix_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled
snd_pcm_sframes_t n;
size_t n_bytes;
int r;
+ pa_bool_t after_avail = TRUE;
if (PA_UNLIKELY((n = pa_alsa_safe_avail(u->pcm_handle, u->hwbuf_size, &u->source->sample_spec)) < 0)) {
@@ -602,20 +610,26 @@ static int unix_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled
frames = snd_pcm_readi(u->pcm_handle, (uint8_t*) p, (snd_pcm_uframes_t) frames);
pa_memblock_release(chunk.memblock);
- if (frames == 0) {
- pa_memblock_unref(chunk.memblock);
- break;
- }
-
if (PA_UNLIKELY(frames < 0)) {
pa_memblock_unref(chunk.memblock);
- if ((r = try_recover(u, "snd_pcm_readi", (int) (frames))) == 0)
+ if (!after_avail && (int) frames == -EAGAIN)
+ break;
+
+ if ((r = try_recover(u, "snd_pcm_readi", (int) frames)) == 0)
continue;
return r;
}
+ if (!after_avail && frames == 0) {
+ pa_memblock_unref(chunk.memblock);
+ break;
+ }
+
+ pa_assert(frames > 0);
+ after_avail = FALSE;
+
chunk.index = 0;
chunk.length = (size_t) frames * u->frame_size;