1 files changed, 65 insertions, 0 deletions
diff --git a/src/feature/control/btrack.c b/src/feature/control/btrack.c
new file mode 100644
index 0000000000..405630ecd4
--- /dev/null
+++ b/src/feature/control/btrack.c
@@ -0,0 +1,65 @@
+/* Copyright (c) 2007-2020, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file btrack.c
+ * \brief Bootstrap trackers
+ *
+ * Initializes and shuts down the specific bootstrap trackers.  These
+ * trackers help the reporting of bootstrap progress by maintaining
+ * state information about various subsystems within tor.  When the
+ * correct state changes happen, these trackers emit controller
+ * events.
+ *
+ * These trackers avoid referring directly to the internals of state
+ * objects of other subsystems.
+ *
+ * btrack_circuit.c contains the tracker for origin circuits.
+ *
+ * btrack_orconn.c contains the tracker for OR connections.
+ *
+ * Eventually there will be a tracker for directory downloads as well.
+ **/
+
+#include "feature/control/btrack_circuit.h"
+#include "feature/control/btrack_orconn.h"
+#include "feature/control/btrack_sys.h"
+#include "lib/pubsub/pubsub.h"
+#include "lib/subsys/subsys.h"
+
+static int
+btrack_init(void)
+{
+  if (btrack_orconn_init())
+    return -1;
+
+  return 0;
+}
+
+static void
+btrack_fini(void)
+{
+  btrack_orconn_fini();
+  btrack_circ_fini();
+}
+
+static int
+btrack_add_pubsub(pubsub_connector_t *connector)
+{
+  if (btrack_orconn_add_pubsub(connector))
+    return -1;
+  if (btrack_circ_add_pubsub(connector))
+    return -1;
+
+  return 0;
+}
+
+const subsys_fns_t sys_btrack = {
+  .name = "btrack",
+  SUBSYS_DECLARE_LOCATION(),
+  .supported = true,
+  .level = 55,
+  .initialize = btrack_init,
+  .shutdown = btrack_fini,
+  .add_pubsub = btrack_add_pubsub,
+};