System.IO.TextReader.ReadToEndAsync C# (CSharp) Method

        public async virtual Task<string> ReadToEndAsync()
        {
            char[] chars = new char[4096];
            int len;
            StringBuilder sb = new StringBuilder(4096);
            while ((len = await ReadAsyncInternal(chars, 0, chars.Length).ConfigureAwait(false)) != 0)
            {
                sb.Append(chars, 0, len);
            }
            return sb.ToString();
        }

 public override Task <string> ReadToEndAsync()
 {
     lock (this) {
         return(reader.ReadToEndAsync());
     }
 }