ENetUDP开发包

ENet 是一个易用的、可移植的 UDP 网络开发包，主要功能包括连接管理、可靠的按顺序的多通道包传输机制、包分解和重新打包、避免堵塞机制等。

下面是一个用 ENet 创建的服务器端代码示例：

    ENetAddress address;
    ENetHost * server;

    /* Bind the server to the default localhost.     */
    /* A specific host address can be specified by   */
    /* enet_address_set_host (& address, "x.x.x.x"); */

    address.host = ENET_HOST_ANY;
    /* Bind the server to port 1234. */
    address.port = 1234;

    server = enet_host_create (& address /* the address to bind the server host to */, 
                                 32      /* allow up to 32 clients and/or outgoing connections */,
                                  0      /* assume any amount of incoming bandwidth */,
                                  0      /* assume any amount of outgoing bandwidth */);
    if (server == NULL)
    {
        fprintf (stderr, 
                 "An error occurred while trying to create an ENet server host.\n");
        exit (EXIT_FAILURE);
    }
    ...
    ...
    ...
    enet_host_destroy(server);