method

daemonize

v1.1.6 - Show latest stable - 0 notes - Class: Kernel

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What's this?

daemonize() public

Turns the current script into a daemon process that detaches from the console. It can be shut down with a TERM signal.

# File activesupport/lib/active_support/core_ext/kernel/daemonizing.rb, line 4
  def daemonize
    exit if fork                   # Parent exits, child continues.
    Process.setsid                 # Become session leader.
    exit if fork                   # Zap session leader. See [1].
    Dir.chdir "/"                  # Release old working directory.
    File.umask 0000                # Ensure sensible umask. Adjust as needed.
    STDIN.reopen "/dev/null"       # Free file descriptors and
    STDOUT.reopen "/dev/null", "a" # point them somewhere sensible.
    STDERR.reopen STDOUT           # STDOUT/ERR should better go to a logfile.
    trap("TERM") { exit }
  end

daemonize

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