private unsafe IMemoryOwner <byte> SerializeImpl <T>(T wire)
where T : IMessage <T>
{
int length = wire.CalculateSize();
IMemoryOwner <byte> rented = _pool.RentExact(length);
// https://github.com/dotnet/corefx/pull/32669#issuecomment-429579594
fixed(byte *ptr = &MemoryMarshal.GetReference(rented.Memory.Span))
{
using (var strm = new UnmanagedMemoryStream(ptr, length, rented.Memory.Length, FileAccess.Write))
{
wire.WriteTo(strm);
}
}
return(rented);
}