diff options
author | Lennart Poettering <lennart@poettering.net> | 2006-09-26 23:50:56 +0000 |
---|---|---|
committer | Lennart Poettering <lennart@poettering.net> | 2006-09-26 23:50:56 +0000 |
commit | d210ebbb09daddb2c8c8e8e77243e088b0b19c4d (patch) | |
tree | 6ca5cc7add195f5a59778df4b0ff44f2881a0c12 /src/modules/module-oss-mmap.c | |
parent | 5ad143b3aba3e5bd0d528feb3143dd9cd2f1e845 (diff) |
rework memory block management to be thread-safe and mostly lock-free.
pa_memblock is now an opaque structure. Access to its fields is now done
through various accessor functions in a thread-safe manner.
pa_memblock_acquire() and pa_memblock_release() are now used to access the
attached audio data. Why? To allow safe manipulation of the memory pointer
maintained by the memory block. Internally _acquire() and _release() maintain a
reference counter. Please do not confuse this reference counter whith the one
maintained by pa_memblock_ref()/_unref()!
As a side effect this patch removes all direct usages of AO_t and replaces it
with pa_atomic_xxx based code.
This stuff needs some serious testing love. Especially if threads are actively
used.
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1404 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/modules/module-oss-mmap.c')
-rw-r--r-- | src/modules/module-oss-mmap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/modules/module-oss-mmap.c b/src/modules/module-oss-mmap.c index 5ab08287..39a8511f 100644 --- a/src/modules/module-oss-mmap.c +++ b/src/modules/module-oss-mmap.c @@ -170,7 +170,7 @@ static void out_fill_memblocks(struct userdata *u, unsigned n) { u->out_fragment_size, 1); assert(chunk.memblock); - chunk.length = chunk.memblock->length; + chunk.length = pa_memblock_get_length(chunk.memblock); chunk.index = 0; pa_sink_render_into_full(u->sink, &chunk); @@ -214,7 +214,7 @@ static void in_post_memblocks(struct userdata *u, unsigned n) { if (!u->in_memblocks[u->in_current]) { chunk.memblock = u->in_memblocks[u->in_current] = pa_memblock_new_fixed(u->core->mempool, (uint8_t*) u->in_mmap+u->in_fragment_size*u->in_current, u->in_fragment_size, 1); - chunk.length = chunk.memblock->length; + chunk.length = pa_memblock_get_length(chunk.memblock); chunk.index = 0; pa_source_post(u->source, &chunk); |