Hi All:<br><br>    I am reading the source code of enet-1.3.4, but have some questions now. Can someone explain when enet_peer_queue_incoming_<div id=":yo">commands() process reliable command, if the reliableSequenceNumber <  channel -> incomingReliableSequenceNumber, it will be added at the end of the channel -> incomingReliableCommands? Then how it worked? Why not drop it? Thanks!<br>

<br>790     case ENET_PROTOCOL_COMMAND_SEND_RELIABLE:<br>791        if (reliableSequenceNumber == channel -> incomingReliableSequenceNumber)<br>792          goto freePacket;<br>793 <br>794        for (currentCommand = enet_list_previous (enet_list_end (& channel -> incomingReliableCommands));<br>

795             currentCommand != enet_list_end (& channel -> incomingReliableCommands);<br>796             currentCommand = enet_list_previous (currentCommand))<br>797        {<br>798           incomingCommand = (ENetIncomingCommand *) currentCommand;<br>

799 <br>800           if (reliableSequenceNumber >= channel -> incomingReliableSequenceNumber)<br>801           {<br>802              if (incomingCommand -> reliableSequenceNumber < channel -> incomingReliableSequenceNumber)<br>

803                continue;<br>804           }<br>805           else<br>806           if (incomingCommand -> reliableSequenceNumber >= channel -> incomingReliableSequenceNumber)<br>807             break;<br>808 <br>

809           if (incomingCommand -> reliableSequenceNumber <= reliableSequenceNumber)<br>810           {<br>811              if (incomingCommand -> reliableSequenceNumber < reliableSequenceNumber)<br>812                break;<br>

813 <br>814              goto freePacket;<br>815           }<br>816        }<br>817        break;<br><br>Kaka Chen</div>