private static SaeaAwaitable OperateAsync(Socket socket, SaeaAwaitable awaitable, Func <Socket, SaeaAwaitable, bool> operation)
{
if (socket == null)
{
throw new ArgumentNullException("socket");
}
if (awaitable == null)
{
throw new ArgumentNullException("awaitable");
}
var awaiter = awaitable.GetAwaiter();
lock (awaiter.SyncRoot)
{
if (!awaiter.IsCompleted)
{
throw new InvalidOperationException(
"A socket operation is already in progress using the same awaitable SAEA.");
}
awaiter.Reset();
if (awaitable.ShouldCaptureContext)
{
awaiter.SyncContext = SynchronizationContext.Current;
}
}
try
{
if (!operation.Invoke(socket, awaitable))
{
awaiter.Complete();
}
}
catch (SocketException ex)
{
awaiter.Complete();
awaitable.Saea.SocketError =
ex.SocketErrorCode != SocketError.Success ? ex.SocketErrorCode : SocketError.SocketError;
}
catch (Exception)
{
awaiter.Complete();
awaitable.Saea.SocketError = SocketError.Success;
throw;
}
return(awaitable);
}
private void Initialize()
{
_saeaPool = new SaeaPool(
() =>
{
var saea = new SaeaAwaitable();
return(saea);
},
(saea) =>
{
try
{
saea.Saea.AcceptSocket = null;
saea.Saea.SetBuffer(EmptyArray, 0, 0);
saea.Saea.RemoteEndPoint = null;
saea.Saea.SocketFlags = SocketFlags.None;
}
catch (Exception ex) // initialize SAEA error occurred
{
_log.Error(ex.Message, ex);
}
})
.Initialize(256);
}
public static SaeaAwaitable SendAsync(this Socket socket, SaeaAwaitable awaitable)
{
return(OperateAsync(socket, awaitable, SEND));
}
public static SaeaAwaitable ReceiveAsync(this Socket socket, SaeaAwaitable awaitable)
{
return(OperateAsync(socket, awaitable, RECEIVE));
}
public static SaeaAwaitable DisonnectAsync(this Socket socket, SaeaAwaitable awaitable)
{
return(OperateAsync(socket, awaitable, DISCONNECT));
}
public static SaeaAwaitable AcceptAsync(this Socket socket, SaeaAwaitable awaitable)
{
return(OperateAsync(socket, awaitable, ACCEPT));
}
public SaeaAwaiter(SaeaAwaitable awaitable)
{
_awaitable = awaitable;
_awaitable.Saea.Completed += OnSaeaCompleted;
}
private void Initialize()
{
_acceptSaeaPool = new SaeaPool(
() =>
{
var saea = new SaeaAwaitable();
return(saea);
},
(saea) =>
{
try
{
saea.Saea.AcceptSocket = null;
saea.Saea.SetBuffer(0, 0);
saea.Saea.RemoteEndPoint = null;
saea.Saea.SocketFlags = SocketFlags.None;
}
catch (Exception ex)
{
_log.Error(ex.Message, ex);
}
})
.Initialize(16);
_handleSaeaPool = new SaeaPool(
() =>
{
var saea = new SaeaAwaitable();
return(saea);
},
(saea) =>
{
try
{
saea.Saea.AcceptSocket = null;
saea.Saea.SetBuffer(EmptyArray, 0, 0);
saea.Saea.RemoteEndPoint = null;
saea.Saea.SocketFlags = SocketFlags.None;
}
catch (Exception ex)
{
_log.Error(ex.Message, ex);
}
})
.Initialize(1024);
_sessionPool = new SessionPool(
() =>
{
var session = new TcpSocketSaeaSession(_configuration, _configuration.BufferManager, _handleSaeaPool, _dispatcher, this);
return(session);
},
(session) =>
{
try
{
session.Detach();
}
catch (Exception ex)
{
_log.Error(ex.Message, ex);
}
})
.Initialize(512);
}
