public static Task <SocketResult> ReceiveAsync(this Socket socket, IOCPBase iocpBase, UserToken userToken)
{
var task = userToken.CompletionSource;
if (!socket.ReceiveAsync(userToken.ReceiveArgs))
{
SocketResult result = new SocketResult {
SocketError = userToken.ReceiveArgs.SocketError, Args = userToken.ReceiveArgs
};
iocpBase.ProcessReceive(userToken.ReceiveArgs, result);
}
return(task);
}
public static Task <SocketResult> SendAsync(this Socket socket, byte[] data, IOCPBase iocpBase, UserToken userToken)
{
if (data.Length > iocpBase.BufferSize)
{
SendPacketsElement[] elements = new SendPacketsElement[1];
elements[0] = new SendPacketsElement(data, 0, data.Length, true);
return(SendDataAsync(socket, elements, iocpBase, userToken));
}
var task = userToken.CompletionSource;
Array.Copy(data, 0, userToken.ReceiveArgs.Buffer, userToken.ReceiveArgs.Offset, data.Length);
userToken.ReceiveArgs.SetBuffer(userToken.ReceiveArgs.Offset, data.Length);
if (!socket.SendAsync(userToken.ReceiveArgs))
{
SocketResult result = new SocketResult {
SocketError = userToken.ReceiveArgs.SocketError, Args = userToken.ReceiveArgs
};
iocpBase.ProcessSend(userToken.ReceiveArgs, result);
}
return(task);
}
static Task <SocketResult> SendDataAsync(Socket socket, SendPacketsElement[] elements, IOCPBase iocpBase, UserToken userToken)
{
var task = userToken.CompletionSource;
userToken.ReceiveArgs.SendPacketsElements = elements;
userToken.ReceiveArgs.SendPacketsFlags = TransmitFileOptions.UseKernelApc;
if (!socket.SendPacketsAsync(userToken.ReceiveArgs))
{
SocketResult result = new SocketResult {
SocketError = userToken.ReceiveArgs.SocketError, Args = userToken.ReceiveArgs
};
iocpBase.ProcessSendPackets(userToken.ReceiveArgs, result);
}
return(task);
}
public static Task <SocketResult> SendFileAsync(this Socket socket, string fileName, IOCPBase iocpBase, UserToken userToken)
{
SendPacketsElement[] elements = new SendPacketsElement[1];
elements[0] = new SendPacketsElement(fileName, 0, 0, true);
return(SendDataAsync(socket, elements, iocpBase, userToken));
}