Package java.nio.channels.FileChannel

Examples of java.nio.channels.FileChannel.MapMode

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            if (!readOnly) {
                newBufferLength = largeBufferSize;
            }

            MapMode mapMode = readOnly ? FileChannel.MapMode.READ_ONLY
                                       : FileChannel.MapMode.READ_WRITE;

            if (!readOnly && file.length() < fileLength + newBufferLength) {
                file.seek(fileLength + newBufferLength - 1);
                file.writeByte(0);
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            if (!readOnly) {
                newBufferLength = largeBufferSize;
            }

            MapMode mapMode = readOnly ? FileChannel.MapMode.READ_ONLY
                                       : FileChannel.MapMode.READ_WRITE;

            if (!readOnly && file.length() < fileLength + newBufferLength) {
                file.seek(fileLength + newBufferLength - 1);
                file.writeByte(0);
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            if (!readOnly) {
                newBufferLength = largeBufferSize;
            }

            MapMode mapMode = readOnly ? FileChannel.MapMode.READ_ONLY
                                       : FileChannel.MapMode.READ_WRITE;

            if (!readOnly && file.length() < fileLength + newBufferLength) {
                file.seek(fileLength + newBufferLength - 1);
                file.writeByte(0);
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  private synchronized void mapArray() throws IOException {
    if (map != null) {
      ByteArrayUtil.unmapByteBuffer(map);
      map = null;
    }
    MapMode mode = writable ? MapMode.READ_WRITE : MapMode.READ_ONLY;
    map = file.getChannel().map(mode, headersize, recordsize * numrecs);
  }
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   * @return additional header data
   * @throws IOException on IO errors
   */
  public synchronized ByteBuffer getExtraHeader() throws IOException {
    final int size = headersize - INTERNAL_HEADER_SIZE;
    final MapMode mode = writable ? MapMode.READ_WRITE : MapMode.READ_ONLY;
    return file.getChannel().map(mode, INTERNAL_HEADER_SIZE, size);
  }
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  private synchronized void mapArray() throws IOException {
    if (map != null) {
      ByteArrayUtil.unmapByteBuffer(map);
      map = null;
    }
    MapMode mode = writable ? MapMode.READ_WRITE : MapMode.READ_ONLY;
    map = file.getChannel().map(mode, headersize, recordsize * numrecs);
  }
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   * @return additional header data
   * @throws IOException on IO errors
   */
  public synchronized ByteBuffer getExtraHeader() throws IOException {
    final int size = headersize - INTERNAL_HEADER_SIZE;
    final MapMode mode = writable ? MapMode.READ_WRITE : MapMode.READ_ONLY;
    return file.getChannel().map(mode, INTERNAL_HEADER_SIZE, size);
  }
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