package js.tinyvm;

import java.io.*;

public class IOUtilities
{
  public static void writePadding (ByteWriter aOut, int aMinRecSize)
  throws Exception
  {
    int pRegSize = aOut.size();
    int pPad = adjustedSize (pRegSize, aMinRecSize) - pRegSize;
    aOut.write (new byte[pPad], 0, pPad);
  }

  public static int adjustedSize (int aSize, int aMinRecSize)
  {
    int pMod = aSize % aMinRecSize;
    if (pMod != 0)
      return aSize + aMinRecSize - pMod;
    return aSize;
  }
}