module Puma::JRubyRestart
Constants
- PermKey
- RestartKey
Public Class Methods
chdir_exec(dir, argv)
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# File lib/puma/jruby_restart.rb, line 14 def self.chdir_exec(dir, argv) chdir(dir) cmd = argv.first argv = ([:string] * argv.size).zip(argv).flatten argv << :string argv << nil execlp(cmd, *argv) raise SystemCallError.new(FFI.errno) end
daemon?()
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# File lib/puma/jruby_restart.rb, line 34 def self.daemon? ENV.key?(PermKey) || ENV.key?(RestartKey) end
daemon_init()
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# File lib/puma/jruby_restart.rb, line 38 def self.daemon_init return true if ENV.key?(PermKey) return false unless ENV.key? RestartKey master = ENV[RestartKey] # In case the master disappears early begin Process.kill "SIGUSR2", master.to_i rescue SystemCallError => e end ENV[RestartKey] = "" setsid null = File.open "/dev/null", "w+" STDIN.reopen null STDOUT.reopen null STDERR.reopen null true end
daemon_start(dir, argv)
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# File lib/puma/jruby_restart.rb, line 63 def self.daemon_start(dir, argv) ENV[RestartKey] = Process.pid.to_s if k = ENV['PUMA_JRUBY_DAEMON_OPTS'] ENV['JRUBY_OPTS'] = k end cmd = argv.first argv = ([:string] * argv.size).zip(argv).flatten argv << :string argv << nil chdir(dir) ret = fork return ret if ret != 0 execlp(cmd, *argv) raise SystemCallError.new(FFI.errno) end
perm_daemonize()
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Called to tell things “Your now always in daemon mode, don't try to reenter it.”
# File lib/puma/jruby_restart.rb, line 30 def self.perm_daemonize ENV[PermKey] = "1" end