Merge HUGE set of changes temporarily into a branch, to allow me to move them from one machine to another (lock-free and stuff)

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1469 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 15 insertions, 3 deletions

diff --git a/src/pulse/stream.c b/src/pulse/stream.c
index f20c17ae..44fce52f 100644
--- a/src/pulse/stream.c
+++ b/src/pulse/stream.c
@@ -91,6 +91,7 @@ pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec *
     s->peek_memchunk.index = 0;
     s->peek_memchunk.length = 0;
     s->peek_memchunk.memblock = NULL;
+    s->peek_data = NULL;
 
     s->record_memblockq = NULL;
 
@@ -125,8 +126,11 @@ static void stream_free(pa_stream *s) {
         s->mainloop->time_free(s->auto_timing_update_event);
     }
 
-    if (s->peek_memchunk.memblock)
+    if (s->peek_memchunk.memblock) {
+        if (s->peek_data)
+            pa_memblock_release(s->peek_memchunk.memblock);
         pa_memblock_unref(s->peek_memchunk.memblock);
+    }
 
     if (s->record_memblockq)
         pa_memblockq_free(s->record_memblockq);
@@ -608,8 +612,11 @@ int pa_stream_write(
     if (free_cb)
         chunk.memblock = pa_memblock_new_user(s->context->mempool, (void*) data, length, free_cb, 1);
     else {
+        void *tdata;
         chunk.memblock = pa_memblock_new(s->context->mempool, length);
-        memcpy(chunk.memblock->data, data, length);
+        tdata = pa_memblock_acquire(chunk.memblock);
+        memcpy(tdata, data, length);
+        pa_memblock_release(chunk.memblock);
     }
 
     chunk.index = 0;
@@ -675,9 +682,12 @@ int pa_stream_peek(pa_stream *s, const void **data, size_t *length) {
             *length = 0;
             return 0;
         }
+
+        s->peek_data = pa_memblock_acquire(s->peek_memchunk.memblock);
     }
 
-    *data = (const char*) s->peek_memchunk.memblock->data + s->peek_memchunk.index;
+    assert(s->peek_data);
+    *data = (uint8_t*) s->peek_data + s->peek_memchunk.index;
     *length = s->peek_memchunk.length;
     return 0;
 }
@@ -696,6 +706,8 @@ int pa_stream_drop(pa_stream *s) {
     if (s->timing_info_valid && !s->timing_info.read_index_corrupt)
         s->timing_info.read_index += s->peek_memchunk.length;
 
+    assert(s->peek_data);
+    pa_memblock_release(s->peek_memchunk.memblock);
     pa_memblock_unref(s->peek_memchunk.memblock);
     s->peek_memchunk.length = 0;
     s->peek_memchunk.index = 0;