示例#1
0
文件: Zone.java 项目: krbaker/jmfs
  //	@Override me
  public DataOutput write(DataOutput out) throws Exception {
    int total = (this instanceof Zone64) ? Zone64.SIZE : Zone32.SIZE;

    for (int i = 0; i < num; i++) {
      out.writeInt(ints[i]);
      total += Utils.SIZEOF_INT;
    }
    for (int i = 0; i < num; i++) {
      bitmaps[i].write(out);
      total += bitmaps[i].getReadAheadSize() + bitmaps[i].getReadSize();
    }

    if (extra != null) out.write(extra);
    else {
      int extraSize = (int) Utils.blocksToBytes(getDescriptorSize()) - total;
      while (extraSize-- > 0) out.writeByte(0xAA);
    }

    return out;
  }
示例#2
0
文件: MfsAdd.java 项目: krbaker/jmfs
  private Zone addZone(Mfs mfs, long logicalStartBlock, SizeSet sizes, long chunkSize)
      throws Exception {
    if ((mfs == null) || (mfs.getMfs() == null))
      throw new Exception("No MFS - MFS has not been initialized");

    List<Zone> zones = mfs.getZones();

    if ((zones == null) || zones.isEmpty())
      throw new Exception("No Zones - MFS has not been initialized");

    Zone lastZone = zones.get(zones.size() - 1);
    int baseFsPointer =
        lastZone.getInts()[0]
            - (int) lastZone.getNum() * Utils.SIZEOF_INT
            + (int) Utils.blocksToBytes(lastZone.getDescriptorSize() + 1)
            + 160;
    Zone64 z =
        new Zone64(
            logicalStartBlock, // descriptor start
            logicalStartBlock + sizes.partition, // data start
            sizes.data, // data size
            chunkSize,
            baseFsPointer);
    z.setType(ZoneType.MEDIA);

    ZoneHeader lastNext = lastZone.getNext();
    /*	just put the next pointer indicating the end into the
    	new zone and fill the previous next with pointers to the new zone
    */
    z.setNext(lastNext);
    lastZone.setNext(z.getHeader());

    mfs.addZone(z);

    return z;
  }