/* Copyright (c) 2007-2021, 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,

};