expire dir connections that live for more than 5 minutes

svn:r1663

src/or/connection_edge.c

@@ -757,7 +757,9 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
       return connection_ap_handshake_attach_circuit(conn);
     } else {
       conn->state = AP_CONN_STATE_RENDDESC_WAIT;
-      if(!connection_get_by_type_rendquery(CONN_TYPE_DIR, conn->rend_query)) {
+      if(connection_get_by_type_rendquery(CONN_TYPE_DIR, conn->rend_query)) {
+        log_fn(LOG_INFO,"Would fetch a new renddesc here (for %s), but one is already in progress.", conn->rend_query);
+      } else {
         /* not one already; initiate a dir rend desc lookup */
         directory_initiate_command(router_pick_directory_server(),
                                    DIR_PURPOSE_FETCH_RENDDESC,

src/or/main.c

@@ -306,6 +306,13 @@ static void run_connection_housekeeping(int i, time_t now) {
   cell_t cell;
   connection_t *conn = connection_array[i];
 
+  if(conn->type == CONN_TYPE_DIR &&
+     conn->timestamp_created + 5*60 > now) {
+    log_fn(LOG_INFO,"Expiring wedged directory conn (purpose %d)", conn->purpose);
+    connection_mark_for_close(conn,0);
+    return;
+  }
+
   /* check connections to see whether we should send a keepalive, expire, or wait */
   if(!connection_speaks_cells(conn))
     return;