message: protocol.Serializer: Leverage sockets asynchronous writes.
diff: @@ -372,17 +372,7 @@ namespace elle
  {
  ++this->_pings;
  if (!this->_lock_write.locked())
  - {
  - new reactor::Thread(
  - this->_scheduler,
  - elle::sprintf("%s pinger", this),
  - [this]
  - {
  - elle::reactor::Lock lock(this->_lock_write);
  this->write_pings_pongs(true);
  - },
  - true);
  - }
  this->_ping_timers.emplace_back(this->_scheduler.io_service());
  this->_ping_timers.back().expires_from_now(
  boost::posix_time::milliseconds(this->_ping_delay->count()));
  