gistfile1.txt

    net_activity(vc, thread);
    // If there are no more bytes to write, signal write complete,
    ink_assert(ntodo >= 0);
    if (s->vio.ntodo() <= 0) {
      write_signal_done(VC_EVENT_WRITE_COMPLETE, nh, vc);
      return;
    } else if (!signalled) {
      if (write_signal_and_update(VC_EVENT_WRITE_READY, vc) != EVENT_CONT) {
        return;
      }
      // change of lock... don't look at shared variables!
      if (lock.m.m_ptr != s->vio.mutex.m_ptr) {
        write_reschedule(nh, vc);
        return;
      }
    }
    if (!buf.reader()->read_avail()) {
      write_disable(nh, vc);
      return;
    }