public unsafe PosixResult TryGetPeerIPAddress(out IPEndPointStruct ep)
{
IPSocketAddress socketAddress;
var rv = SocketInterop.GetPeerName(this, (byte *)&socketAddress, sizeof(IPSocketAddress));
if (rv.IsSuccess)
{
ep = socketAddress.ToIPEndPoint();
}
else
{
ep = default(IPEndPointStruct);
}
return(rv);
}
public unsafe IPSocketAddress(IPEndPointStruct endPoint)
{
bool ipv4 = endPoint.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork;
FlowInfo = 0;
_family = (short)(ipv4 ? AddressFamily.InterNetwork : AddressFamily.InterNetworkV6);
ScopeId = ipv4 ? 0 : (uint)endPoint.Address.ScopeId;
Port = (ushort)endPoint.Port;
var bytes = endPoint.Address.GetAddressBytes();
fixed(byte *address = Address)
{
for (int i = 0; i < (ipv4 ? 4 : 16); i++)
{
address[i] = bytes[i];
}
}
}
private int HandleAccept(TSocket tacceptSocket)
{
var type = tacceptSocket.Type;
int clientFd = -1;
PosixResult result;
if (type == SocketFlags.TypeAccept)
{
// TODO: should we handle more than 1 accept? If we do, we shouldn't be to eager
// as that might give the kernel the impression we have nothing to do
// which could interfere with the SO_REUSEPORT load-balancing.
result = tacceptSocket.TryAccept(out clientFd, blocking: false);
}
else
{
result = tacceptSocket.TryReceiveSocket(out clientFd, blocking: false);
if (result.Value == 0)
{
// The socket passing us file descriptors has closed.
// We dispose our end so we get get removed from the epoll.
tacceptSocket.Close();
return(0);
}
}
if (result.IsSuccess)
{
TSocket tsocket;
try
{
SocketFlags flags = SocketFlags.TypeClient | (tacceptSocket.IsDeferSend ? SocketFlags.DeferSend : SocketFlags.None);
tsocket = new TSocket(this, clientFd, flags)
{
ZeroCopyThreshold = tacceptSocket.ZeroCopyThreshold
};
bool ipSocket = !object.ReferenceEquals(tacceptSocket.LocalAddress, NotIPSocket);
// Store the last LocalAddress on the tacceptSocket so we might reuse it instead
// of allocating a new one for the same address.
IPEndPointStruct localAddress = default(IPEndPointStruct);
IPEndPointStruct remoteAddress = default(IPEndPointStruct);
if (ipSocket && tsocket.TryGetLocalIPAddress(out localAddress, tacceptSocket.LocalAddress))
{
tsocket.LocalAddress = localAddress.Address;
tsocket.LocalPort = localAddress.Port;
if (tsocket.TryGetPeerIPAddress(out remoteAddress))
{
tsocket.RemoteAddress = remoteAddress.Address;
tsocket.RemotePort = remoteAddress.Port;
}
}
else
{
// This is not an IP socket.
tacceptSocket.LocalAddress = NotIPSocket;
ipSocket = false;
}
if (ipSocket)
{
tsocket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, 1);
}
}
catch
{
IOInterop.Close(clientFd);
return(0);
}
_connectionDispatcher.OnConnection(tsocket);
lock (_sockets)
{
_sockets.Add(clientFd, tsocket);
}
bool dataMayBeAvailable = tacceptSocket.IsDeferAccept;
tsocket.Start(dataMayBeAvailable);
return(1);
}
else
{
return(0);
}
}
public unsafe PosixResult TryConnect(IPEndPointStruct endpoint)
{
IPSocketAddress socketAddress = new IPSocketAddress(endpoint);
return(SocketInterop.Connect(this, (byte *)&socketAddress, sizeof(IPSocketAddress)));
}
public void Connect(IPEndPointStruct endpoint)
{
TryConnect(endpoint)
.ThrowOnError();
}
public void Bind(IPEndPointStruct endpoint)
{
TryBind(endpoint)
.ThrowOnError();
}