static Lock appendToFile_lock = lock();

sbool appendToFile_keepOpen;

static new HashMap<S, Writer> appendToFile_writers;

static void appendToFile(S path, S s) ctex {

  lock appendToFile_lock; // Let's just generally synchronize this to be safe.

  mkdirsForFile(new File(path));

  path = getCanonicalPath(path);

  Writer writer = appendToFile_writers.get(path);

  if (writer == null) {

    //print("[Logging to " + path + "]");

    writer = new BufferedWriter(new OutputStreamWriter(

      newFileOutputStream(path, true), "UTF-8"));

    if (appendToFile_keepOpen)

      appendToFile_writers.put(path, writer);

  }

  writer.write(s);

  if (!appendToFile_keepOpen)

    writer.close();

}

static void appendToFile(File path, String s) {

  if (path != null)

    appendToFile(path.getPath(), s);

}

svoid cleanMeUp_appendToFile {

  temp tempCleaningUp();

  lock appendToFile_lock;

  closeAllWriters(values(appendToFile_writers));

  appendToFile_writers.clear();

}