                Start an asynchronous write.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="posix__stream_descriptor_service/cancel.html" title="posix::stream_descriptor_service::cancel"><span class="bold"><strong>cancel</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Cancel all asynchronous operations associated with the descriptor.
                </p>
              </td>
</tr>
<tr