return b;
}
+/* Creates and returns a new ofpbuf with an initial capacity of 'size +
+ * headroom' bytes, reserving the first 'headroom' bytes as headroom. */
+struct ofpbuf *
+ofpbuf_new_with_headroom(size_t size, size_t headroom)
+{
+ struct ofpbuf *b = ofpbuf_new(size + headroom);
+ ofpbuf_reserve(b, headroom);
+ return b;
+}
+
struct ofpbuf *
ofpbuf_clone(const struct ofpbuf *buffer)
{
return ofpbuf_clone_data(buffer->data, buffer->size);
}
+/* Creates and returns a new ofpbuf whose data are copied from 'buffer'. The
+ * returned ofpbuf will additionally have 'headroom' bytes of headroom. */
+struct ofpbuf *
+ofpbuf_clone_with_headroom(const struct ofpbuf *buffer, size_t headroom)
+{
+ struct ofpbuf *b = ofpbuf_new_with_headroom(buffer->size, headroom);
+ ofpbuf_put(b, buffer->data, buffer->size);
+ return b;
+}
+
struct ofpbuf *
ofpbuf_clone_data(const void *data, size_t size)
{