Method common_free

src/proxy/http2/Http2CommonSession.cc:70–147

}

bool
Http2CommonSession::common_free(ProxySession *ssn)
{
  if (this->_reenable_event) {
    this->_reenable_event->cancel();
    this->_reenable_event = nullptr;
  }

  // Make sure the we are at the bottom of the stack
  if (this->connection_state.is_recursing() || this->recursion != 0) {
    // Note that we are ready to be cleaned up
    // One of the event handlers will catch it
    this->kill_me = true;
    return false;
  }

  REMEMBER(NO_EVENT, this->recursion)
  Http2SsnDebug("session free");

  // Don't free active ProxySession
  ink_release_assert(ssn->is_active() == false);

  this->_milestones.mark(Http2SsnMilestone::CLOSE);
  ink_hrtime total_time = this->_milestones.elapsed(Http2SsnMilestone::OPEN, Http2SsnMilestone::CLOSE);

  // Slow Log
  if (Http2::con_slow_log_threshold != 0 && ink_hrtime_from_msec(Http2::con_slow_log_threshold) < total_time) {
    Error("[%" PRIu64 "] Slow H2 Connection: open: %" PRIu64 " close: %.3f", ssn->connection_id(),
          ink_hrtime_to_msec(this->_milestones[Http2SsnMilestone::OPEN]),
          this->_milestones.difference_sec(Http2SsnMilestone::OPEN, Http2SsnMilestone::CLOSE));
  }

  // Update stats on how we died.  May want to eliminate this.  Was useful for
  // tracking down which cases we were having problems cleaning up.  But for general
  // use probably not worth the effort
  if (cause_of_death != Http2SessionCod::NOT_PROVIDED) {
    switch (cause_of_death) {
    case Http2SessionCod::HIGH_ERROR_RATE:
      Metrics::Counter::increment(http2_rsb.session_die_high_error_rate);
      break;
    case Http2SessionCod::NOT_PROVIDED:
      // Can't happen but this case is here to not have default case.
      Metrics::Counter::increment(http2_rsb.session_die_other);
      break;
    }
  } else {
    switch (dying_event) {
    case VC_EVENT_NONE:
      Metrics::Counter::increment(http2_rsb.session_die_default);
      break;
    case VC_EVENT_ACTIVE_TIMEOUT:
      Metrics::Counter::increment(http2_rsb.session_die_active);
      break;
    case VC_EVENT_INACTIVITY_TIMEOUT:
      Metrics::Counter::increment(http2_rsb.session_die_inactive);
      break;
    case VC_EVENT_ERROR:
      Metrics::Counter::increment(http2_rsb.session_die_error);