message: Fix crash in swReactorThread_onPackage caused by task fd overflow.
diff: @@ -194,6 +194,7 @@ static int swReactorThread_onPackage(swReactor *reactor, swEvent *event)
  task.target_worker_id = -1;
  uint32_t header_size = sizeof(pkt);
  + task.data.info.fd = task.data.info.fd & 0x7FFFFFF; //make sure fd is positive.
  //dgram header
  memcpy(task.data.data, &pkt, sizeof(pkt));
  