private static Task WriteMessageCoreAsync(this PipeWriter pipeWriter, byte[] messageData, HttpContextServerCallContext serverCallContext, bool flush)
{
Debug.Assert(serverCallContext.ResponseGrpcEncoding != null);
var isCompressed =
serverCallContext.CanWriteCompressed() &&
!string.Equals(serverCallContext.ResponseGrpcEncoding, GrpcProtocolConstants.IdentityGrpcEncoding, StringComparison.Ordinal);
if (isCompressed)
{
messageData = GrpcProtocolHelpers.CompressMessage(
serverCallContext.ResponseGrpcEncoding,
serverCallContext.ServiceOptions.ResponseCompressionLevel,
serverCallContext.ServiceOptions.CompressionProviders,
messageData);
}
WriteHeader(pipeWriter, messageData.Length, isCompressed);
pipeWriter.Write(messageData);
if (flush)
{
serverCallContext.HasBufferedMessage = false;
return(pipeWriter.FlushAsync().GetAsTask());
}
else
{
// Set flag so buffered message will be written at the end
serverCallContext.HasBufferedMessage = true;
}
return(Task.CompletedTask);
}
private static Task WriteMessageCoreAsync(this PipeWriter pipeWriter, byte[] messageData, HttpContextServerCallContext serverCallContext, bool flush)
{
Debug.Assert(serverCallContext.ResponseGrpcEncoding != null);
var isCompressed =
serverCallContext.CanWriteCompressed() &&
!string.Equals(serverCallContext.ResponseGrpcEncoding, GrpcProtocolConstants.IdentityGrpcEncoding, StringComparison.Ordinal);
if (isCompressed)
{
messageData = GrpcProtocolHelpers.CompressMessage(
serverCallContext.ResponseGrpcEncoding,
serverCallContext.ServiceOptions.ResponseCompressionLevel,
serverCallContext.ServiceOptions.CompressionProviders,
messageData);
}
WriteHeader(pipeWriter, messageData.Length, isCompressed);
pipeWriter.Write(messageData);
if (flush)
{
var valueTask = pipeWriter.FlushAsync();
if (valueTask.IsCompletedSuccessfully)
{
// We do this to reset the underlying value task (which happens in GetResult())
valueTask.GetAwaiter().GetResult();
return(Task.CompletedTask);
}
return(valueTask.AsTask());
}
return(Task.CompletedTask);
}
