private static async Task WriteAsyncCore(Stream utf8Json, object?value, Type inputType, JsonSerializerOptions?options, CancellationToken cancellationToken)
{
if (options == null)
{
options = JsonSerializerOptions.s_defaultOptions;
}
JsonWriterOptions writerOptions = options.GetWriterOptions();
using (var bufferWriter = new PooledByteBufferWriter(options.DefaultBufferSize))
using (var writer = new Utf8JsonWriter(bufferWriter, writerOptions))
{
if (value == null)
{
writer.WriteNullValue();
writer.Flush();
await bufferWriter.WriteToStreamAsync(utf8Json, cancellationToken).ConfigureAwait(false);
return;
}
if (inputType == null)
{
inputType = value.GetType();
}
WriteStack state = default;
state.InitializeRoot(inputType, options, supportContinuation: true);
bool isFinalBlock;
do
{
// todo: determine best value here
// https://github.com/dotnet/runtime/issues/32356
state.FlushThreshold = (int)(bufferWriter.Capacity * .9);
isFinalBlock = WriteCore(
writer,
value,
options,
ref state,
state.Current.JsonClassInfo !.PolicyProperty !.ConverterBase);
writer.Flush();
await bufferWriter.WriteToStreamAsync(utf8Json, cancellationToken).ConfigureAwait(false);
bufferWriter.Clear();
} while (!isFinalBlock);
}
// todo: verify that we do want to call FlushAsync here (or above). It seems like leaving it to the caller would be best.
}
