|
@@ -838,6 +838,28 @@ buf_move_to_buf(buf_t *buf_out, buf_t *buf_in, size_t *buf_flushlen)
|
|
|
return (int)cp;
|
|
|
}
|
|
|
|
|
|
+/** Moves all data from <b>buf_in</b> to <b>buf_out</b>, without copying.
|
|
|
+ */
|
|
|
+void
|
|
|
+buf_move_all(buf_t *buf_out, buf_t *buf_in)
|
|
|
+{
|
|
|
+ tor_assert(buf_out);
|
|
|
+ if (!buf_in)
|
|
|
+ return;
|
|
|
+
|
|
|
+ if (buf_out->head == NULL) {
|
|
|
+ buf_out->head = buf_in->head;
|
|
|
+ buf_out->tail = buf_in->tail;
|
|
|
+ } else {
|
|
|
+ buf_out->tail->next = buf_in->head;
|
|
|
+ buf_out->tail = buf_in->tail;
|
|
|
+ }
|
|
|
+
|
|
|
+ buf_out->datalen += buf_in->datalen;
|
|
|
+ buf_in->head = buf_in->tail = NULL;
|
|
|
+ buf_in->datalen = 0;
|
|
|
+}
|
|
|
+
|
|
|
/** Internal structure: represents a position in a buffer. */
|
|
|
typedef struct buf_pos_t {
|
|
|
const chunk_t *chunk; /**< Which chunk are we pointing to? */
|