buffer: add buffer_move

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-5-git-send-email-kraxel@redhat.com

1 files changed, 10 insertions, 0 deletions

diff --git a/include/qemu/buffer.h b/include/qemu/buffer.h
index f53ee9e..1358df1 100644
--- a/include/qemu/buffer.h
+++ b/include/qemu/buffer.h
@@ -137,4 +137,14 @@ gboolean buffer_empty(Buffer *buffer);
  */
 void buffer_move_empty(Buffer *to, Buffer *from);
 
+/**
+ * buffer_move:
+ * @to: destination buffer object
+ * @from: source buffer object
+ *
+ * Moves buffer, copying data (unless 'to' buffer happens to be empty).
+ * 'from' buffer is empty and zero-sized on return.
+ */
+void buffer_move(Buffer *to, Buffer *from);
+
 #endif /* QEMU_BUFFER_H__ */