Class: Daemon::Cluster::PidFile

Inherits:
Object
  • Object
show all
Defined in:
lib/serverside/cluster.rb

Overview

Stores and recalls pids for the child processes.

Constant Summary collapse

FN = 
'serverside_cluster.pid'

Class Method Summary collapse

Class Method Details

.delete ⇒ Object

Deletes the cluster’s pid file.



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# File 'lib/serverside/cluster.rb', line 12

def self.delete
  FileUtils.rm(FN) if File.file?(FN)
end

.recall_pids ⇒ Object

Recalls all child pids.



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# File 'lib/serverside/cluster.rb', line 22

def self.recall_pids
  pids = []
  File.open(FN, 'r') do |f|
    while !f.eof?
      pids << f.gets.to_i
    end
  end
  pids
end

.store_pid(pid) ⇒ Object

Stores a pid in the cluster’s pid file.



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# File 'lib/serverside/cluster.rb', line 17

def self.store_pid(pid)
  File.open(FN, 'a') {|f| f.puts pid}
end