gras: fixed a bug in swapping out buffer queues

The default pool buffer was getting circ buffers
when they went out from the deref in this circumstance:
Basically, the circ buffs were created and deref'd
before the circ queue was set into the output queue.

This seems to fix the pfb clock sync issue,
but not others is #42

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/buffer_queue_pool.cpp b/lib/buffer_queue_pool.cpp
index db9b68a..003dec3 100644
--- a/lib/buffer_queue_pool.cpp
+++ b/lib/buffer_queue_pool.cpp
@@ -37,6 +37,12 @@ struct BufferQueuePool : BufferQueue
 
     void push(const SBuffer &buff)
     {
+        //is it my buffer? otherwise dont keep it
+        if (buff->config.token.lock() != _token) return;
+
+        //should never get a buffer from a circ queue
+        ASSERT(buff.get_user_index() == size_t(~0));
+
         _queue.push_back(buff);
     }