private static Task PerformSend(object state)
{
var context = (SendContext)state;
using (var writer = new BinaryMemoryPoolTextWriter(context.Transport.Pool))
{
writer.Write("data: ");
context.Transport.JsonSerializer.Serialize(context.State, writer);
writer.WriteLine();
writer.WriteLine();
writer.Flush();
context.Transport.Context.Response.Write(writer.Buffer);
}
return context.Transport.Context.Response.Flush();
}
private static Task PerformPartialSend(object state)
{
var context = (LongPollingTransportContext)state;
if (!context.Transport.IsAlive)
{
return TaskAsyncHelper.Empty;
}
using (var writer = new BinaryMemoryPoolTextWriter(context.Transport.Pool))
{
if (context.Transport.IsJsonp)
{
writer.Write(context.Transport.JsonpCallback);
writer.Write("(");
}
context.Transport.JsonSerializer.Serialize(context.State, writer);
if (context.Transport.IsJsonp)
{
writer.Write(");");
}
writer.Flush();
context.Transport.Context.Response.Write(writer.Buffer);
}
return context.Transport.Context.Response.Flush();
}
private static async Task PerformSend(object state)
{
var context = (WebSocketTransportContext)state;
var socket = context.Transport._socket;
using (var writer = new BinaryMemoryPoolTextWriter(context.Transport.Pool))
{
try
{
context.Transport.JsonSerializer.Serialize(context.State, writer);
writer.Flush();
await socket.Send(writer.Buffer).PreserveCulture();
}
catch (Exception ex)
{
// OnError will close the socket in the event of a JSON serialization or flush error.
// The client should then immediately reconnect instead of simply missing keep-alives.
context.Transport.OnError(ex);
throw;
}
}
}
private static Task PerformSend(object state)
{
var context = (ForeverTransportContext)state;
if (!context.Transport.IsAlive)
{
return TaskAsyncHelper.Empty;
}
context.Transport.Context.Response.ContentType = JsonUtility.JsonMimeType;
using (var writer = new BinaryMemoryPoolTextWriter(context.Transport.Pool))
{
context.Transport.JsonSerializer.Serialize(context.State, writer);
writer.Flush();
context.Transport.Context.Response.Write(writer.Buffer);
}
return TaskAsyncHelper.Empty;
}
