Method state_keep_alive

src/proxy/http/Http1ClientSession.cc:362–411

}

int
Http1ClientSession::state_keep_alive(int event, void *data)
{
  // Route the event.  It is either for vc or
  //  the origin server slave vc
  if (data) {
    if (data == slave_ka_vio) {
      return state_slave_keep_alive(event, data);
    } else if (data == schedule_event) {
      schedule_event = nullptr;
    } else {
      ink_assert(data && data == ka_vio);
      ink_assert(read_state == HCS_KEEP_ALIVE);
    }
  }

  // If we got here due to a network I/O event directly, go ahead and cancel any remaining schedule events
  if (schedule_event) {
    schedule_event->cancel();
    schedule_event = nullptr;
  }

  STATE_ENTER(&Http1ClientSession::state_keep_alive, event, data);

  switch (event) {
  case VC_EVENT_READ_READY:
    // New transaction, need to spawn of new sm to process
    // request
    new_transaction();
    break;

  case VC_EVENT_EOS:
    this->do_io_close(EHTTP_ERROR);
    break;

  case VC_EVENT_READ_COMPLETE:
  default:
    // These events are bogus
    ink_assert(0);
  // Fall through
  case VC_EVENT_ERROR:
  case VC_EVENT_ACTIVE_TIMEOUT:
  case VC_EVENT_INACTIVITY_TIMEOUT:
    // Keep-alive timed out
    this->do_io_close(EHTTP_ERROR);
    break;
  }

  return 0;
}

// Called from the Http1Transaction::release or at the start of a session for
// the very first transaction from Http1ClientSession::new_connection.