module Landrush::Util::ProcessHelper
A module containing helper classes for dealing with pid files
Public Instance Methods
ensure_path_exits(file_name)
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# File lib/landrush/util/process_helper.rb, line 23 def ensure_path_exits(file_name) dirname = File.dirname(file_name) FileUtils.mkdir_p(dirname) unless File.directory?(dirname) end
process_status(file)
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# File lib/landrush/util/process_helper.rb, line 19 def process_status(file) running?(file) ? :running : :stopped end
read_pid(file)
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# File lib/landrush/util/process_helper.rb, line 12 def read_pid(file) file.rewind file.read.to_i rescue StandardError nil end
terminate_process(file)
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# File lib/landrush/util/process_helper.rb, line 28 def terminate_process(file) pid = read_pid(file) # Kill/Term loop - if the daemon didn't die easily, shoot # it a few more times. attempts = 5 while running?(file) && attempts > 0 sig = attempts >= 2 ? 'KILL' : 'TERM' puts "Sending #{sig} to process #{pid}..." Process.kill(sig, pid) attempts -= 1 sleep 1 end end
write_pid(pid, file)
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# File lib/landrush/util/process_helper.rb, line 5 def write_pid(pid, file) file.rewind file.truncate(0) file.write pid file.flush end