summaryrefslogtreecommitdiffstats
path: root/src/pulsecore/memblockq.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/pulsecore/memblockq.c')
-rw-r--r--src/pulsecore/memblockq.c80
1 files changed, 40 insertions, 40 deletions
diff --git a/src/pulsecore/memblockq.c b/src/pulsecore/memblockq.c
index e6b73fc5..4a845a53 100644
--- a/src/pulsecore/memblockq.c
+++ b/src/pulsecore/memblockq.c
@@ -2,17 +2,17 @@
/***
This file is part of PulseAudio.
-
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
@@ -61,12 +61,12 @@ pa_memblockq* pa_memblockq_new(
size_t prebuf,
size_t minreq,
pa_memblock *silence) {
-
+
pa_memblockq* bq;
-
+
assert(base > 0);
assert(maxlength >= base);
-
+
bq = pa_xnew(pa_memblockq, 1);
bq->blocks = bq->blocks_tail = NULL;
bq->n_blocks = 0;
@@ -90,20 +90,20 @@ pa_memblockq* pa_memblockq_new(
bq->prebuf = bq->maxlength;
bq->minreq = (minreq/base)*base;
-
+
if (bq->minreq > bq->tlength - bq->prebuf)
bq->minreq = bq->tlength - bq->prebuf;
if (!bq->minreq)
bq->minreq = 1;
-
+
pa_log_debug("memblockq sanitized: maxlength=%lu, tlength=%lu, base=%lu, prebuf=%lu, minreq=%lu",
(unsigned long)bq->maxlength, (unsigned long)bq->tlength, (unsigned long)bq->base, (unsigned long)bq->prebuf, (unsigned long)bq->minreq);
bq->state = bq->prebuf ? PREBUF : RUNNING;
bq->silence = silence ? pa_memblock_ref(silence) : NULL;
bq->mcalign = NULL;
-
+
return bq;
}
@@ -117,7 +117,7 @@ void pa_memblockq_free(pa_memblockq* bq) {
if (bq->mcalign)
pa_mcalign_free(bq->mcalign);
-
+
pa_xfree(bq);
}
@@ -126,12 +126,12 @@ static void drop_block(pa_memblockq *bq, struct memblock_list *q) {
assert(q);
assert(bq->n_blocks >= 1);
-
+
if (q->prev)
q->prev->next = q->next;
else
bq->blocks = q->next;
-
+
if (q->next)
q->next->prev = q->prev;
else
@@ -168,10 +168,10 @@ static int can_push(pa_memblockq *bq, size_t l) {
}
int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *uchunk) {
-
+
struct memblock_list *q, *n;
pa_memchunk chunk;
-
+
assert(bq);
assert(uchunk);
assert(uchunk->memblock);
@@ -185,7 +185,7 @@ int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *uchunk) {
return -1;
chunk = *uchunk;
-
+
if (bq->read_index > bq->write_index) {
/* We currently have a buffer underflow, we need to drop some
@@ -203,7 +203,7 @@ int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *uchunk) {
return 0;
}
}
-
+
/* We go from back to front to look for the right place to add
* this new entry. Drop data we will overwrite on the way */
@@ -275,29 +275,29 @@ int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *uchunk) {
assert(bq->write_index + (int64_t)chunk.length > q->index &&
bq->write_index + (int64_t)chunk.length < q->index + (int64_t)q->chunk.length &&
bq->write_index < q->index);
-
+
/* The job overwrites the current entry at the end, so let's drop the beginning of this entry */
d = bq->write_index + chunk.length - q->index;
q->index += d;
q->chunk.index += d;
q->chunk.length -= d;
-
+
q = q->prev;
}
-
+
}
if (q) {
assert(bq->write_index >= q->index + (int64_t)q->chunk.length);
assert(!q->next || (bq->write_index + (int64_t)chunk.length <= q->next->index));
-
+
/* Try to merge memory blocks */
-
+
if (q->chunk.memblock == chunk.memblock &&
q->chunk.index + (int64_t)q->chunk.length == chunk.index &&
bq->write_index == q->index + (int64_t)q->chunk.length) {
-
+
q->chunk.length += chunk.length;
bq->write_index += chunk.length;
return 0;
@@ -324,7 +324,7 @@ int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *uchunk) {
n->prev->next = n;
else
bq->blocks = n;
-
+
bq->n_blocks++;
return 0;
}
@@ -347,7 +347,7 @@ int pa_memblockq_peek(pa_memblockq* bq, pa_memchunk *chunk) {
bq->state = PREBUF;
return -1;
}
-
+
/* Do we need to spit out silence? */
if (!bq->blocks || bq->blocks->index > bq->read_index) {
@@ -362,7 +362,7 @@ int pa_memblockq_peek(pa_memblockq* bq, pa_memchunk *chunk) {
if (!length || length > chunk->memblock->length)
length = chunk->memblock->length;
-
+
chunk->length = length;
} else {
@@ -370,7 +370,7 @@ int pa_memblockq_peek(pa_memblockq* bq, pa_memchunk *chunk) {
* the time to sleep */
if (!bq->blocks)
return -1;
-
+
chunk->memblock = NULL;
chunk->length = length;
}
@@ -381,7 +381,7 @@ int pa_memblockq_peek(pa_memblockq* bq, pa_memchunk *chunk) {
/* Ok, let's pass real data to the caller */
assert(bq->blocks->index == bq->read_index);
-
+
*chunk = bq->blocks->chunk;
pa_memblock_ref(chunk->memblock);
@@ -432,14 +432,14 @@ void pa_memblockq_drop(pa_memblockq *bq, const pa_memchunk *chunk, size_t length
assert(bq->blocks->index >= bq->read_index);
d = (size_t) (bq->blocks->index - bq->read_index);
-
+
if (d >= length) {
/* The first block is too far in the future */
-
+
bq->read_index += length;
break;
} else {
-
+
length -= d;
bq->read_index += d;
}
@@ -462,7 +462,7 @@ void pa_memblockq_drop(pa_memblockq *bq, const pa_memchunk *chunk, size_t length
bq->read_index += length;
break;
}
-
+
} else {
/* The list is empty, there's nothing we could drop */
@@ -477,7 +477,7 @@ int pa_memblockq_is_readable(pa_memblockq *bq) {
if (bq->prebuf > 0) {
size_t l = pa_memblockq_get_length(bq);
-
+
if (bq->state == PREBUF && l < bq->prebuf)
return 0;
@@ -493,7 +493,7 @@ int pa_memblockq_is_writable(pa_memblockq *bq, size_t length) {
if (length % bq->base)
return 0;
-
+
return pa_memblockq_get_length(bq) + length <= bq->tlength;
}
@@ -502,7 +502,7 @@ size_t pa_memblockq_get_length(pa_memblockq *bq) {
if (bq->write_index <= bq->read_index)
return 0;
-
+
return (size_t) (bq->write_index - bq->read_index);
}
@@ -546,7 +546,7 @@ void pa_memblockq_seek(pa_memblockq *bq, int64_t offset, pa_seek_mode_t seek) {
void pa_memblockq_flush(pa_memblockq *bq) {
assert(bq);
-
+
while (bq->blocks)
drop_block(bq, bq->blocks);
@@ -559,7 +559,7 @@ void pa_memblockq_flush(pa_memblockq *bq) {
size_t pa_memblockq_get_tlength(pa_memblockq *bq) {
assert(bq);
-
+
return bq->tlength;
}
@@ -578,18 +578,18 @@ int pa_memblockq_push_align(pa_memblockq* bq, const pa_memchunk *chunk) {
assert(bq);
assert(chunk && bq->base);
-
+
if (bq->base == 1)
return pa_memblockq_push(bq, chunk);
-
+
if (!bq->mcalign)
bq->mcalign = pa_mcalign_new(bq->base);
if (!can_push(bq, pa_mcalign_csize(bq->mcalign, chunk->length)))
return -1;
-
+
pa_mcalign_push(bq->mcalign, chunk);
-
+
while (pa_mcalign_pop(bq->mcalign, &rchunk) >= 0) {
int r;
r = pa_memblockq_push(bq, &rchunk);
generated by cgit (git 2.34.1) at 2024-11-10 18:24:02 +0000