public override async ValueTask <string> ReadStringAsync(CancellationToken cancellationToken)
{
// read length
var length = (int) await ReadVarInt32Async(cancellationToken);
if (length == 0)
{
return(string.Empty);
}
// read and decode data
if (length < PreAllocatedBuffer.Length)
{
await Trans.ReadAllAsync(PreAllocatedBuffer, 0, length, cancellationToken);
return(Encoding.UTF8.GetString(PreAllocatedBuffer, 0, length));
}
Transport.CheckReadBytesAvailable(length);
var buf = ArrayPool <byte> .Shared.Rent(length);
try
{
await Trans.ReadAllAsync(buf, 0, length, cancellationToken);
return(Encoding.UTF8.GetString(buf, 0, length));
}
finally
{
ArrayPool <byte> .Shared.Return(buf);
}
}
public override async ValueTask <byte[]> ReadBinaryAsync(CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
var size = await ReadI32Async(cancellationToken);
Transport.CheckReadBytesAvailable(size);
var buf = new byte[size];
await Trans.ReadAllAsync(buf, 0, size, cancellationToken);
return(buf);
}
public override async ValueTask <byte[]> ReadBinaryAsync(CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(await Task.FromCanceled <byte[]>(cancellationToken));
}
var size = await ReadI32Async(cancellationToken);
Transport.CheckReadBytesAvailable(size);
var buf = new byte[size];
await Trans.ReadAllAsync(buf, 0, size, cancellationToken);
return(buf);
}
private async ValueTask <string> ReadStringBodyAsync(int size, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (size <= PreAllocatedBuffer.Length)
{
await Trans.ReadAllAsync(PreAllocatedBuffer, 0, size, cancellationToken);
return(Encoding.UTF8.GetString(PreAllocatedBuffer, 0, size));
}
Transport.CheckReadBytesAvailable(size);
var buf = new byte[size];
await Trans.ReadAllAsync(buf, 0, size, cancellationToken);
return(Encoding.UTF8.GetString(buf, 0, buf.Length));
}
public override async ValueTask <byte[]> ReadBinaryAsync(CancellationToken cancellationToken)
{
// read length
var length = (int) await ReadVarInt32Async(cancellationToken);
if (length == 0)
{
return(Array.Empty <byte>());
}
// read data
Transport.CheckReadBytesAvailable(length);
var buf = new byte[length];
await Trans.ReadAllAsync(buf, 0, length, cancellationToken);
return(buf);
}
protected void CheckReadBytesAvailable(TMap map)
{
var elmSize = GetMinSerializedSize(map.KeyType) + GetMinSerializedSize(map.ValueType);
Transport.CheckReadBytesAvailable(map.Count * elmSize);
}
protected void CheckReadBytesAvailable(TList list)
{
Transport.CheckReadBytesAvailable(list.Count * GetMinSerializedSize(list.ElementType));
}