Prop 209: Add in hidserv path bias counts for usage.

src/or/connection_edge.c

@@ -2454,6 +2454,10 @@ connection_exit_begin_conn(cell_t *cell, circuit_t *circ)
     assert_circuit_ok(circ);
 
     connection_exit_connect(n_stream);
+
+    /* For path bias: This circuit was used successfully */
+    origin_circ->any_streams_succeeded = 1;
+
     tor_free(address);
     return 0;
   }

src/or/or.h

@@ -2873,9 +2873,8 @@ typedef struct origin_circuit_t {
   unsigned int isolation_any_streams_attached : 1;
 
   /**
-   * Did any SOCKS streams actually succeed on this circuit?
-   *
-   * XXX: We probably also need to set this for intro other hidserv circs..
+   * Did any SOCKS streams or hidserv introductions actually succeed on
+   * this circuit?
    */
   unsigned int any_streams_succeeded : 1;
 

src/or/rendclient.c

@@ -378,6 +378,9 @@ rend_client_introduction_acked(origin_circuit_t *circ,
        * it to specify when a circuit entered the
        * _C_REND_READY_INTRO_ACKED state. */
       rendcirc->base_.timestamp_dirty = time(NULL);
+      
+      /* For path bias: This circuit was used successfully */
+      circ->any_streams_succeeded = 1;
     } else {
       log_info(LD_REND,"...Found no rend circ. Dropping on the floor.");
     }

src/or/rendservice.c

@@ -1384,6 +1384,9 @@ rend_service_introduce(origin_circuit_t *circuit, const uint8_t *request,
     goto err;
   memcpy(cpath->handshake_digest, keys, DIGEST_LEN);
           
+  /* For path bias: This circuit was used successfully */
+  circuit->any_streams_succeeded = 1;
+
   goto done;
 
  log_error: