Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel Berrange <berrange@redhat.com>
Message-id:
1446203414-4013-4-git-send-email-kraxel@redhat.com
*/
gboolean buffer_empty(Buffer *buffer);
+/**
+ * buffer_move_empty:
+ * @to: destination buffer object
+ * @from: source buffer object
+ *
+ * Moves buffer, without copying data. 'to' buffer must be empty.
+ * 'from' buffer is empty and zero-sized on return.
+ */
+void buffer_move_empty(Buffer *to, Buffer *from);
+
#endif /* QEMU_BUFFER_H__ */
(buffer->offset - len));
buffer->offset -= len;
}
+
+void buffer_move_empty(Buffer *to, Buffer *from)
+{
+ assert(to->offset == 0);
+
+ g_free(to->buffer);
+ to->offset = from->offset;
+ to->capacity = from->capacity;
+ to->buffer = from->buffer;
+
+ from->offset = 0;
+ from->capacity = 0;
+ from->buffer = NULL;
+}