Class: Eye::ChildProcess

Inherits:
Object show all
Includes:
Celluloid, Process::Commands, Process::Config, Process::Data, Process::Notify, Process::Scheduler, Process::System, Process::Watchers
Defined in:
lib/eye/child_process.rb

Constant Summary

Constants included from Process::Notify

Process::Notify::LEVELS

Constants included from Process::Config

Process::Config::DEFAULTS

Instance Attribute Summary collapse

Attributes included from Process::Scheduler

#current_scheduled_command, #last_scheduled_at, #last_scheduled_command, #last_scheduled_reason

Instance Method Summary collapse

Methods included from Process::Scheduler

included, #schedule, #schedule_history, #schedule_in, #scheduled_action, #scheduler_actions_list, #scheduler_clear_pending_list

Methods included from Process::Notify

included, #notify, #notify_died

Methods included from Process::Data

#app_name, #debug_data, #environment_string, #group_name, #group_name_pure, #self_status_data, #shell_string, #sub_object?

Methods included from Process::System

#clear_pid_file, #execute, #failsafe_load_pid, #failsafe_save_pid, #load_pid_from_file, #pid_file_ctime, #process_pid_running?, #process_really_running?, #save_pid_to_file, #send_signal, #set_pid_from_file, #wait_for_condition

Methods included from Process::Watchers

#add_watchers, #remove_watchers

Methods included from Process::Config

#[], #c, #control_pid?, #prepare_config, #update_config

Methods included from Process::Commands

#restart_process, #start_process, #stop_process

Constructor Details

#initialize(pid, config = {}, logger_prefix = nil, parent_pid = nil) ⇒ ChildProcess

Returns a new instance of ChildProcess.



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# File 'lib/eye/child_process.rb', line 29

def initialize(pid, config = {}, logger_prefix = nil, parent_pid = nil)
  raise 'Empty pid' unless pid

  @pid = pid
  @parent_pid = parent_pid
  @config = prepare_config(config)
  @name = "child-#{pid}"
  @full_name = [logger_prefix, @name] * ':'

  @watchers = {}

  debug "start monitoring CHILD config: #{@config.inspect}"

  start_checkers
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/eye/child_process.rb', line 27

def config
  @config
end

#full_name ⇒ Object (readonly)

Returns the value of attribute full_name.



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# File 'lib/eye/child_process.rb', line 27

def full_name
  @full_name
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/eye/child_process.rb', line 27

def name
  @name
end

#pid ⇒ Object (readonly)

Returns the value of attribute pid.



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# File 'lib/eye/child_process.rb', line 27

def pid
  @pid
end

#watchers ⇒ Object (readonly)

Returns the value of attribute watchers.



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# File 'lib/eye/child_process.rb', line 27

def watchers
  @watchers
end

Instance Method Details

#delete ⇒ Object 



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# File 'lib/eye/child_process.rb', line 82

def delete
end

#destroy ⇒ Object 



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# File 'lib/eye/child_process.rb', line 85

def destroy
  remove_watchers
  terminate
end

#logger_tag ⇒ Object 



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# File 'lib/eye/child_process.rb', line 45

def logger_tag
  full_name
end

#monitor ⇒ Object 



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# File 'lib/eye/child_process.rb', line 76

def monitor
end

#prepare_command(command) ⇒ Object

override



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# File 'lib/eye/child_process.rb', line 98

def prepare_command(command) # override
  super.gsub('{PARENT_PID}', @parent_pid.to_s)
end

#restart ⇒ Object 



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# File 'lib/eye/child_process.rb', line 68

def restart
  if self[:restart_command]
    execute_restart_command
  else
    stop
  end
end

#send_command(command, *args) ⇒ Object 



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# File 'lib/eye/child_process.rb', line 57

def send_command(command, *args)
  schedule command, *args, Eye::Reason::User.new(command)
end

#signal(sig) ⇒ Object 



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# File 'lib/eye/child_process.rb', line 90

def signal(sig)
  send_signal(sig) if self.pid
end

#start ⇒ Object 



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# File 'lib/eye/child_process.rb', line 61

def start
end

#state ⇒ Object 



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# File 'lib/eye/child_process.rb', line 49

def state
  :up
end

#status_data(debug = false) ⇒ Object 



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# File 'lib/eye/child_process.rb', line 94

def status_data(debug = false)
  self_status_data(debug)
end

#stop ⇒ Object 



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# File 'lib/eye/child_process.rb', line 64

def stop
  kill_process
end

#unmonitor ⇒ Object 



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# File 'lib/eye/child_process.rb', line 79

def unmonitor
end

#up? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/eye/child_process.rb', line 53

def up?
  state == :up
end