music_pipe: poison music_chunk.next

The value of music_chunk.next is undefined for a chunk returned by music_pipe_shift(). For more pedantic debugging, poison the reference before returning the chunk.

music_pipe: poison music_chunk.next
f8aebc52 · Max Kellermann · 39d35219 · f8aebc52
Commit f8aebc52 authored Mar 07, 2009 by Max Kellermann
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pipe.c src/pipe.c +5 -0

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--- a/src/pipe.c
+++ b/src/pipe.c
@@ -88,6 +88,11 @@ music_pipe_shift(struct music_pipe *mp)
 			assert(mp->size > 0);
 			assert(mp->tail_r != &chunk->next);
 		}
+
+#ifndef NDEBUG
+		/* poison the "next" reference */
+		chunk->next = (void*)0x01010101;
+#endif
 	}

 	g_mutex_unlock(mp->mutex);