module Scheduler

Constants

VERSION

Attributes

configuration[RW]

@return [Scheduler::Configuration] the configuration class for Scheduler.

Public Class Methods

configure() { |configuration| ... } click to toggle source

Method to configure various Scheduler options.

@return [nil]

# File lib/scheduler.rb, line 24
def configure
  @configuration ||= Scheduler::Configuration.new
  yield @configuration
end

pid() click to toggle source

Gets scheduler main process pid.

@return [Integer] main process pid.

# File lib/scheduler.rb, line 41
def pid
  File.read(self.pid_file).to_i rescue nil
end

pid_file() click to toggle source

Gets scheduler pid file.

@return [String] the pid file.

# File lib/scheduler.rb, line 33
def pid_file
  '/tmp/rails-scheduler.pid'
end

restart() click to toggle source

Restarts the scheduler.

@return [nil]

# File lib/scheduler.rb, line 81
def restart
  self.stop
  self.start
end

start() click to toggle source

Starts a Scheduler::MainProcess in a separate process.

@return [nil]

# File lib/scheduler.rb, line 49
def start
  scheduler_pid = Process.fork do
    begin
      Process.daemon(true)
      File.open(self.pid_file, 'w+') do |pidfile|
        pidfile.puts Process.pid
      end
      scheduler = Scheduler::MainProcess.new
    rescue StandardError => e
      Rails.logger.error "#{e.class}: #{e.message} (#{e.backtrace.first})".red
    end
  end
  Process.detach(scheduler_pid)
  scheduler_pid
end

stop() click to toggle source

Reschedules all running jobs and stops the scheduler main process.

@return [nil]

# File lib/scheduler.rb, line 69
def stop
  begin  
    Process.kill :TERM, Scheduler.pid
    FileUtils.rm(self.pid_file)
  rescue TypeError, Errno::ENOENT, Errno::ESRCH
  end
end