Method fsyncAll

java/com/facebook/soloader/SysUtil.java:328–351

(File fileName)

  }

  public static void fsyncAll(File fileName) throws IOException {
    Stack<File> filesStack = new Stack<>();
    filesStack.push(fileName);
    while (!filesStack.isEmpty()) {
      File currentFile = filesStack.pop();
      if (currentFile.isDirectory()) {
        File[] fileList = currentFile.listFiles();
        if (fileList == null) {
          throw new IOException("cannot list directory " + currentFile);
        }
        for (File entry : fileList) {
          filesStack.push(entry);
        }
      } else if (!currentFile.getPath().endsWith("_lock")) {
        // Do not sync! Any close(2) of a locked file counts as releasing the file for the whole
        // process!
        try (RandomAccessFile file = new RandomAccessFile(currentFile, "r")) {
          file.getFD().sync();
        } catch (IOException e) {
          LogUtil.e(TAG, "Syncing failed for " + currentFile + ": " + e.getMessage());
        }
      }
    }
  }

  private static long getParcelPadSize(long len) {
    return len + (4 - (len % 4)) % 4;