Exemple #1
0
/**
 * Process a ping message
 *
 * \param[in] ping  Ping to process
 */
static void
sup_process_ping(const sup_ping_t *ping)
{
  sup_node_t *node;

#ifdef WITH_TRACE
  __trace("<-- from node %u: incarnation=%hu", ping->sender, ping->incarnation);
  sup_view_debug(&ping->view);
#endif

  EXA_ASSERT(sup_check_ping(ping, 'R'));

  node = sup_cluster_node(&cluster, ping->sender);
  if (node == NULL)
    {
      /* First time the node is seen, let's add it to the cluster */
      sup_cluster_add_node(&cluster, ping->sender);
      node = sup_cluster_node(&cluster, ping->sender);
      EXA_ASSERT(node);
    }

  if (node != self)
    update_node_info(node, ping);

  switch (self->view.state)
    {
    case SUP_STATE_UNKNOWN:
      /* Can't possibly be in UNKNOWN state */
      EXA_ASSERT(false);
      break;

    case SUP_STATE_CHANGE:
      state_change_process_ping(ping);
      break;

    case SUP_STATE_ACCEPT:
      state_accept_process_ping(ping);
      break;

    case SUP_STATE_COMMIT:
      state_commit_process_ping(ping);
      break;
    }
}
Exemple #2
0
/**
 * Send a ping to all instances of Csupd using examsg.
 *
 * \param[in] cluster  Cluster
 * \param[in] view     View to send
 */
void
sup_send_ping(const sup_cluster_t *cluster, const sup_view_t *view)
{
  sup_ping_msg_t ping_msg;
  int err;

  ping_msg.any.type = EXAMSG_SUP_PING;

  ping_msg.ping.sender = cluster->self->id;
  ping_msg.ping.incarnation = cluster->self->incarnation;

  sup_view_copy(&ping_msg.ping.view, view);

  EXA_ASSERT(sup_check_ping(&ping_msg.ping, 'S'));

  err = examsgSendNoBlock(sup_mh, EXAMSG_CMSGD_ID, EXAMSG_LOCALHOST,
                          &ping_msg, sizeof(ping_msg));
  if (err != sizeof(ping_msg))
    __debug("cannot send ping : %s (%d)", exa_error_msg(err), err);
}