/// <summary>
/// Sends a memcached packet asyncronously and handles the response be calling the passed in <see cref="callback" /> delegate.
/// </summary>
/// <param name="request">The memcached request packet.</param>
/// <param name="callback">The callback handled when the response has been been received.</param>
public override void SendAsync(byte[] request, Func<SocketAsyncState, Task> callback)
{
var state = new AsyncState
{
Id = Converter.ToUInt32(request, HeaderIndexFor.Opaque),
Callback = callback,
Converter = Converter
};
lock (_statesInFlight)
{
_statesInFlight.TryAdd(state.Id, state);
}
state.Timer = new Timer(o =>
{
AsyncState a = (AsyncState)o;
lock (_statesInFlight)
{
IState inflight;
_statesInFlight.TryRemove(a.Id, out inflight);
}
a.Cancel();
}, state, Configuration.SendTimeout, Timeout.Infinite);
var sentBytesCount = 0;
lock (Socket)
{
do
{
sentBytesCount += Socket.Send(request, sentBytesCount, request.Length - sentBytesCount, SocketFlags.None);
} while (sentBytesCount < request.Length);
}
}
public override Task SendAsync(byte[] request, Func <SocketAsyncState, Task> callback, ISpan span, ErrorMap errorMap)
{
var opaque = Converter.ToUInt32(request, HeaderIndexFor.Opaque);
var state = new AsyncState
{
Opaque = opaque,
Callback = callback,
Converter = Converter,
EndPoint = (IPEndPoint)EndPoint,
DispatchSpan = span,
ConnectionId = ContextId,
ErrorMap = errorMap,
Timeout = Configuration.SendTimeout,
LocalEndpoint = LocalEndPoint.ToString()
};
_statesInFlight.TryAdd(state.Opaque, state);
state.Timer = new Timer(o =>
{
AsyncState a = (AsyncState)o;
_statesInFlight.TryRemove(a.Opaque, out _);
a.Cancel(ResponseStatus.OperationTimeout, CreateTimeoutException(opaque));
}, state, Configuration.SendTimeout, Timeout.Infinite);
var sentBytesCount = 0;
lock (Socket)
{
try
{
do
{
sentBytesCount += Socket.Send(request, sentBytesCount, request.Length - sentBytesCount,
SocketFlags.None);
} while (sentBytesCount < request.Length);
}
catch (Exception e)
{
HandleDisconnect(e);
}
}
return(Task.FromResult(0));
}
/// <summary>
/// Sends a memcached packet asyncronously and handles the response be calling the passed in <see cref="callback" /> delegate.
/// </summary>
/// <param name="request">The memcached request packet.</param>
/// <param name="callback">The callback handled when the response has been been received.</param>
/// <exception cref="SendTimeoutExpiredException"></exception>
public override void SendAsync(byte[] request, Func <SocketAsyncState, Task> callback)
{
var state = new AsyncState
{
Id = Converter.ToUInt32(request, HeaderIndexFor.Opaque),
Callback = callback,
Converter = Converter,
EndPoint = (IPEndPoint)EndPoint
};
lock (_statesInFlight)
{
_statesInFlight.TryAdd(state.Id, state);
}
state.Timer = new Timer(o =>
{
AsyncState a = (AsyncState)o;
lock (_statesInFlight)
{
IState inflight;
_statesInFlight.TryRemove(a.Id, out inflight);
}
a.Cancel(ResponseStatus.OperationTimeout, new SendTimeoutExpiredException());
}, state, Configuration.SendTimeout, Timeout.Infinite);
var sentBytesCount = 0;
lock (Socket)
{
try
{
do
{
sentBytesCount += Socket.Send(request, sentBytesCount, request.Length - sentBytesCount,
SocketFlags.None);
} while (sentBytesCount < request.Length);
}
catch (Exception e)
{
HandleDisconnect(e);
}
}
}
