Class ElfFileChannel

java/com/facebook/soloader/ElfFileChannel.java:25–87

import java.nio.channels.FileChannel;

public class ElfFileChannel implements ElfByteChannel {

  private File mFile;
  private FileInputStream mIs;
  private FileChannel mFc;

  public ElfFileChannel(File file) throws IOException {
    mFile = file;
    openChannel();
  }

  public void openChannel() throws IOException {
    mIs = new FileInputStream(mFile);
    mFc = mIs.getChannel();
  }

  @Override
  public long position() throws IOException {
    return mFc.position();
  }

  @Override
  public ElfByteChannel position(long newPosition) throws IOException {
    mFc.position(newPosition);
    return this;
  }

  @Override
  public int read(ByteBuffer dst) throws IOException {
    return mFc.read(dst);
  }

  @Override
  public int read(ByteBuffer dst, long position) throws IOException {
    return mFc.read(dst, position);
  }

  @Override
  public long size() throws IOException {
    return mFc.size();
  }

  @Override
  public ElfByteChannel truncate(long size) throws IOException {
    mFc.truncate(size);
    return this;
  }

  @Override
  public int write(ByteBuffer src) throws IOException {
    return mFc.write(src);
  }

  @Override
  public void close() throws IOException {
    mIs.close();
  }