<commit_before>require "mamiya/version"
require 'thread'

module Mamiya

  @chdir_mutex = Thread::Mutex.new
  def self.chdir(dir, &block)
    @chdir_mutex.synchronize do
      Dir.chdir(dir, &block)
    end
  end
end
<commit_msg>Use Monitor for recursive locking<commit_after>require "mamiya/version"
require 'thread'

module Mamiya

  @chdir_monitor = Monitor.new
  def self.chdir(dir, &block)
    @chdir_monitor.synchronize do
      Dir.chdir(dir, &block)
    end
  end
end

{'fraction_non_alphanumeric': 0.10084033613445378, 'fraction_numerical': 0.0, 'mean_word_length': 3.917525773195876, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '6132897', 'n_tokens_mistral': 179, 'n_tokens_neox': 175, 'n_words': 40}