class Object
Public Instance Methods
with_lock(lock_file) { || ... }
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# File lib/generators/lab/install/templates/start_worker.rb, line 9 def with_lock(lock_file) File.open("log/#{lock_file}", File::RDWR | File::CREAT, 0o644) do |file| unless file.flock(File::LOCK_EX | File::LOCK_NB) Rails.logger.warn("Failed to start new process due to lock: #{lock_file}") exit 2 end file.rewind file.puts("Process ##{Process.pid} started at #{Time.now}") yield end end