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authorLennart Poettering <lennart@poettering.net>2009-07-24 20:21:30 +0200
committerLennart Poettering <lennart@poettering.net>2009-07-24 20:21:30 +0200
commit211d0f3dcb23c6d63dd6a212826a872ce972e4ee (patch)
treeacf0a9c4ba0cfd02f75ca5f891f050c092c86c3d /src/pulse/stream.c
parente7ca058427e795b9c2b436c4a819e8d8354ee9de (diff)
client: limit block size for zero-copy operations to mempool block size
Diffstat (limited to 'src/pulse/stream.c')
-rw-r--r--src/pulse/stream.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/pulse/stream.c b/src/pulse/stream.c
index bbd01499..72d49e11 100644
--- a/src/pulse/stream.c
+++ b/src/pulse/stream.c
@@ -1207,6 +1207,17 @@ int pa_stream_begin_write(
PA_CHECK_VALIDITY(s->context, data, PA_ERR_INVALID);
PA_CHECK_VALIDITY(s->context, nbytes && *nbytes != 0, PA_ERR_INVALID);
+ if (*nbytes != (size_t) -1) {
+ size_t m, fs;
+
+ m = pa_mempool_block_size_max(s->context->mempool);
+ fs = pa_frame_size(&s->sample_spec);
+
+ m = (m / fs) * fs;
+ if (*nbytes > m)
+ *nbytes = m;
+ }
+
if (!s->write_memblock) {
s->write_memblock = pa_memblock_new(s->context->mempool, *nbytes);
s->write_data = pa_memblock_acquire(s->write_memblock);