1 构造函数
创建一个未连接的 IPv4 数据报 Socket:
DatagramSocket();
创建一个指定 IP 类型(IPv4 或 IPv6)的 数据报 Socket:
explicit DatagramSocket(IPAddress::Family family);
创建一个指定 SocketAddress 的数据报 Socket
DatagramSocket(const SocketAddress& address, bool reuseAddress = false); DatagramSocket(const Socket& socket); /// Creates the DatagramSocket with the SocketImpl /// from another socket. The SocketImpl must be /// a DatagramSocketImpl, otherwise an InvalidArgumentException /// will be thrown.
2 重载运算符
DatagramSocket& operator = (const Socket& socket); /// Assignment operator. /// /// Releases the socket's SocketImpl and /// attaches the SocketImpl from the other socket and /// increments the reference count of the SocketImpl.
3 常 用操作
3.1 连接与绑定
void connect(const SocketAddress& address);
void bind(const SocketAddress& address, bool reuseAddress = false);
3.2 收发数据且不考虑 client
int sendBytes(const void* buffer, int length, int flags = 0);
int receiveBytes(void* buffer, int length, int flags = 0);
3.3 手法 数据且获取 client 的 SocketAddress
int sendTo(const void* buffer, int length, const SocketAddress& address, int flags = 0);
int receiveFrom(void* buffer, int length, SocketAddress& address, int flags = 0);
3.4 收发广播
void setBroadcast (bool flag);
bool getBroadcast() const;
4 protected 函数
DatagramSocket(SocketImpl* pImpl);
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