//------------------------------------------------------------
#region 绑定端口函数
public int Bind(int port = 0)
{
Debuger.Log(LOG_TAG, "Bind() port = " + port);
if (m_SystemSocket == null)
{
return(0);
}
//如果Bind的端口为0，则会随机分配一个端口
IPEndPoint ipep = IPUtils.GetIPEndPointAny(m_AddrFamily, port);
m_SystemSocket.Bind(ipep);
m_IsActive = true;
return(SelfPort);
}
//------------------------------------------------------------
#region Functions to bind port
public int Bind(int port = 0)
{
MyLogger.Log(LOG_TAG, "Bind() port = " + port);
if (mSystemSocket == null)
{
return(0);
}
//if the bound port is 0, will assign a random port
IPEndPoint ipep = IPUtils.GetIPEndPointAny(mAddrFamily, port);
mSystemSocket.Bind(ipep);
isActive = true;
return(SelfPort);
}
//------------------------------------------------------------
#region ReceiveFrom和SendTo函数
public int ReceiveFrom(byte[] buffer, int maxsize, ref IPEndPoint remoteEP)
{
int cnt = 0;
EndPoint ip = null;
if (!m_EnableBlockOnRecv)
{
if (m_SystemSocket.Available <= 0)
{
return(0);
}
}
if (m_AddrFamily == AddressFamily.InterNetwork)
{
//如果是IPv4环境，则(与Android的处理一样)
ip = IPUtils.GetIPEndPointAny(AddressFamily.InterNetwork, 0);
cnt = m_SystemSocket.ReceiveFrom(buffer, maxsize, SocketFlags.None, ref ip);
if (cnt > 0 && remoteEP != null && !remoteEP.Equals(ip))
{
Debuger.LogWarning(LOG_TAG, "ReceiveFrom() 收到一个自来陌生IP:Port(" + ip + ")的数据包！");
return(0);
}
}
else
{
//如果是IPv6环境，则：
ip = remoteEP;
cnt = m_SystemSocket.ReceiveFrom(buffer, maxsize, SocketFlags.None, ref ip);
}
remoteEP = ip as IPEndPoint;
return(cnt);
}
//------------------------------------------------------------
#region ReceiveFrom,SendTo Function
public int ReceiveFrom(byte[] buffer, int maxsize, ref IPEndPoint remoteEP)
{
int cnt = 0;
EndPoint ip = null;
if (!mEnableBlockOnRecv)
{
if (mSystemSocket.Available <= 0)
{
return(0);
}
}
if (mAddrFamily == AddressFamily.InterNetwork)
{
//In IPv4 ,the same as android
ip = IPUtils.GetIPEndPointAny(AddressFamily.InterNetwork, 0);
cnt = mSystemSocket.ReceiveFrom(buffer, maxsize, SocketFlags.None, ref ip);
if (cnt > 0 && remoteEP != null && !remoteEP.Equals(ip))
{
MyLogger.LogWarning(LOG_TAG, "ReceiveFrom()", " receive msg from stranger IP:Port(" + ip + ")!");
return(0);
}
}
else
{
//In IPv6
ip = remoteEP;
cnt = mSystemSocket.ReceiveFrom(buffer, maxsize, SocketFlags.None, ref ip);
}
remoteEP = ip as IPEndPoint;
return(cnt);
}
public void Init()
{
IPUtils.CheckSelfIPAddress();
}
