* rework reference counting in the client libraries: now refcounting goes

strictly "one-way" - the "bigger" object refcounts the "smaller" one, never the
  other way round. 

* when registering for a reply packet in pdispatch, specify a function that is
  called when the pdispatch object is destroyed but the reply hasn't yet been
  recieved.

* move prototype of pa_free_cb from stream.h to def.h 



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@794 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/polyp/def.h

@@ -304,6 +304,9 @@ typedef enum pa_source_flags {
     PA_SOURCE_LATENCY = 2          /**< Supports latency querying */
 } pa_source_flags_t;
 
+/** A generic free() like callback prototype */
+typedef void (*pa_free_cb_t)(void *p);
+
 PA_C_DECL_END
 
 #endif