private static SocketAwaitable DoSendAsync(Socket socket, SocketAsyncEventArgs args, ReadOnlySequence <byte> buffer, string name)
{
if (buffer.IsSingleSegment)
{
return(DoSendAsync(socket, args, buffer.First, name));
}
#if SOCKET_STREAM_BUFFERS
if (!args.MemoryBuffer.IsEmpty)
#else
if (args.Buffer != null)
#endif
{
args.SetBuffer(null, 0, 0);
}
args.BufferList = GetBufferList(args, buffer);
Helpers.DebugLog(name, $"## {nameof(socket.SendAsync)} {buffer.Length}");
if (socket.SendAsync(args))
{
Helpers.Incr(Counter.SocketSendAsyncMultiAsync);
}
else
{
Helpers.Incr(Counter.SocketSendAsyncMultiSync);
SocketAwaitable.OnCompleted(args);
}
return(GetAwaitable(args));
}
private static SocketAwaitable DoSendAsync(Socket socket, SocketAsyncEventArgs args, ReadOnlyMemory <byte> memory, string name)
{
// The BufferList getter is much less expensive then the setter.
if (args.BufferList != null)
{
args.BufferList = null;
}
#if SOCKET_STREAM_BUFFERS
args.SetBuffer(MemoryMarshal.AsMemory(memory));
#else
var segment = memory.GetArray();
args.SetBuffer(segment.Array, segment.Offset, segment.Count);
#endif
Helpers.DebugLog(name, $"## {nameof(socket.SendAsync)} {memory.Length}");
if (socket.SendAsync(args))
{
Helpers.Incr(Counter.SocketSendAsyncSingleAsync);
}
else
{
Helpers.Incr(Counter.SocketSendAsyncSingleSync);
SocketAwaitable.OnCompleted(args);
}
return(GetAwaitable(args));
}
private static SocketAwaitable ConnectAsync(Socket socket, SocketAsyncEventArgs args, EndPoint endpoint)
{
args.RemoteEndPoint = endpoint;
if (!socket.ConnectAsync(args))
{
SocketAwaitable.OnCompleted(args);
}
return(GetAwaitable(args));
}