Method main_event_handler

src/proxy/http2/Http2ServerSession.cc:166–257

}

int
Http2ServerSession::main_event_handler(int event, void *edata)
{
  ink_assert(this->mutex->thread_holding == this_ethread());
  int retval;

  recursion++;

  Event *e = static_cast<Event *>(edata);
  if (e == schedule_event) {
    schedule_event = nullptr;
  }

  Http2SsnDebug("main_event_handler=%d edata=%p", event, edata);

  switch (event) {
  case VC_EVENT_READ_COMPLETE:
  case VC_EVENT_READ_READY: {
    bool is_zombie = connection_state.get_zombie_event() != nullptr;
    retval         = (this->*session_handler)(event, edata);
    if (is_zombie && connection_state.get_zombie_event() != nullptr) {
      Warning("Processed read event for zombie session %" PRId64, connection_id());
    }
    break;
  }

  case HTTP2_SESSION_EVENT_REENABLE:
    // VIO will be reenableed in this handler
    retval = (this->*session_handler)(VC_EVENT_READ_READY, static_cast<VIO *>(e->cookie));
    // Clear the event after calling session_handler to not reschedule REENABLE in it
    this->_reenable_event = nullptr;
    break;

  case VC_EVENT_ACTIVE_TIMEOUT:
  case VC_EVENT_INACTIVITY_TIMEOUT:
  case VC_EVENT_ERROR:
  case VC_EVENT_EOS:
    Http2SsnDebug("Closing event: %s", HttpDebugNames::get_event_name(event));
    this->set_dying_event(event);
    this->do_io_close();
    retval = 0;
    break;

  case VC_EVENT_WRITE_READY:
  case VC_EVENT_WRITE_COMPLETE:
    this->connection_state.restart_streams();
    if ((ink_get_hrtime() >= this->_write_buffer_last_flush + HRTIME_MSECONDS(this->_write_time_threshold))) {
      this->flush();
    }

    retval = 0;
    break;

  case HTTP2_SESSION_EVENT_PRIO:
  default:
    Http2SsnDebug("unexpected event=%d edata=%p", event, edata);
    ink_release_assert(0);
    retval = 0;