private static async ValueTask <int> ReadLengthAsync(this PipeReader reader, StringLengthEncoding lengthFormat, CancellationToken token)
{
ValueTask <int> result;
var littleEndian = BitConverter.IsLittleEndian;
switch (lengthFormat)
{
default:
throw new ArgumentOutOfRangeException(nameof(lengthFormat));
case StringLengthEncoding.Plain:
result = reader.ReadAsync <int>(token);
break;
case StringLengthEncoding.PlainLittleEndian:
littleEndian = true;
goto case StringLengthEncoding.Plain;
case StringLengthEncoding.PlainBigEndian:
littleEndian = false;
goto case StringLengthEncoding.Plain;
case StringLengthEncoding.Compressed:
result = reader.Read7BitEncodedIntAsync(token);
break;
}
var length = await result.ConfigureAwait(false);
length.ReverseIfNeeded(littleEndian);
return(length);
}
ValueTask IAsyncBinaryWriter.WriteTimeSpanAsync(TimeSpan value, StringLengthEncoding lengthFormat, EncodingContext context, string?format, IFormatProvider?provider, CancellationToken token)
{
Task result;
if (token.IsCancellationRequested)
{
result = Task.FromCanceled(token);
}
else
{
try
{
writer.WriteTimeSpan(value, lengthFormat, in context, format, provider);
result = FlushAsync(token);
}
catch (Exception e)
{
result = Task.FromException(e);
}
}
return(new ValueTask(result));
}
public ValueTask <string> ReadStringAsync(StringLengthEncoding lengthFormat, DecodingContext context, CancellationToken token) => EndOfStream <string>();
ValueTask <string> IAsyncBinaryReader.ReadStringAsync(StringLengthEncoding lengthFormat, DecodingContext context, CancellationToken token) => reader.ReadStringAsync(lengthFormat, context, token);
ValueTask <TimeSpan> IAsyncBinaryReader.ReadTimeSpanAsync(StringLengthEncoding lengthFormat, DecodingContext context, string[] formats, TimeSpanStyles style, IFormatProvider?provider, CancellationToken token) => StreamExtensions.ReadTimeSpanAsync(input, lengthFormat, context, buffer, formats, style, provider, token);
ValueTask <DateTimeOffset> IAsyncBinaryReader.ReadDateTimeOffsetAsync(StringLengthEncoding lengthFormat, DecodingContext context, DateTimeStyles style, IFormatProvider?provider, CancellationToken token) => StreamExtensions.ReadDateTimeOffsetAsync(input, lengthFormat, context, buffer, style, provider, token);
ValueTask <Guid> IAsyncBinaryReader.ReadGuidAsync(StringLengthEncoding lengthFormat, DecodingContext context, string format, CancellationToken token) => StreamExtensions.ReadGuidAsync(input, lengthFormat, context, buffer, format, token);
ValueTask <double> IAsyncBinaryReader.ReadDoubleAsync(StringLengthEncoding lengthFormat, DecodingContext context, NumberStyles style, IFormatProvider?provider, CancellationToken token) => StreamExtensions.ReadDoubleAsync(input, lengthFormat, context, buffer, style, provider, token);
public ValueTask <string> ReadStringAsync(StringLengthEncoding lengthFormat, DecodingContext context, CancellationToken token = default) => StreamExtensions.ReadStringAsync(input, lengthFormat, context, buffer, token);
ValueTask IAsyncBinaryWriter.WriteTimeSpanAsync(TimeSpan value, StringLengthEncoding lengthFormat, EncodingContext context, string?format, IFormatProvider?provider, CancellationToken token) => output.WriteTimeSpanAsync(value, lengthFormat, context, buffer, format, provider, token);
/// <summary> /// Decodes string asynchronously from pipe. /// </summary> /// <param name="reader">The pipe reader.</param> /// <param name="lengthFormat">Represents string length encoding format.</param> /// <param name="context">The text decoding context.</param> /// <param name="token">The token that can be used to cancel the operation.</param> /// <returns>The decoded string.</returns> /// <exception cref="EndOfStreamException"><paramref name="reader"/> doesn't contain the necessary number of bytes to restore string.</exception> /// <exception cref="OperationCanceledException">The operation has been canceled.</exception> /// <exception cref="ArgumentOutOfRangeException"><paramref name="lengthFormat"/> is invalid.</exception> public static async ValueTask <string> ReadStringAsync(this PipeReader reader, StringLengthEncoding lengthFormat, DecodingContext context, CancellationToken token = default) => await ReadStringAsync(reader, await reader.ReadLengthAsync(lengthFormat, token).ConfigureAwait(false), context, token).ConfigureAwait(false);
ValueTask <Guid> IAsyncBinaryReader.ReadGuidAsync(StringLengthEncoding lengthFormat, DecodingContext context, string format, CancellationToken token) => EndOfStream <Guid>();
ValueTask <TimeSpan> IAsyncBinaryReader.ReadTimeSpanAsync(StringLengthEncoding lengthFormat, DecodingContext context, string[] formats, TimeSpanStyles style, IFormatProvider?provider, CancellationToken token) => EndOfStream <TimeSpan>();
ValueTask <DateTimeOffset> IAsyncBinaryReader.ReadDateTimeOffsetAsync(StringLengthEncoding lengthFormat, DecodingContext context, string[] formats, DateTimeStyles style, IFormatProvider?provider, CancellationToken token) => EndOfStream <DateTimeOffset>();
ValueTask <decimal> IAsyncBinaryReader.ReadDecimalAsync(StringLengthEncoding lengthFormat, DecodingContext context, NumberStyles style, IFormatProvider?provider, CancellationToken token) => EndOfStream <decimal>();