System.Net.WebConnection.EnsureRead C# (CSharp) Method

		int EnsureRead (byte [] buffer, int offset, int size)
		{
			byte [] morebytes = null;
			int nbytes = 0;
			while (nbytes == 0 && chunkStream.WantMore) {
				int localsize = chunkStream.ChunkLeft;
				if (localsize <= 0) // not read chunk size yet
					localsize = 1024;
				else if (localsize > 16384)
					localsize = 16384;

				if (morebytes == null || morebytes.Length < localsize)
					morebytes = new byte [localsize];

				int nread = nstream.Read (morebytes, 0, localsize);
				if (nread <= 0)
					return 0; // Error

				chunkStream.Write (morebytes, 0, nread);
				nbytes += chunkStream.Read (buffer, offset + nbytes, size - nbytes);
			}

			return nbytes;
		}