ChildProcess::JRuby::Process

Public Instance Methods

exited?() click to toggle source
# File lib/childprocess/jruby/process.rb, line 10
def exited?
  return true if @exit_code

  assert_started
  @exit_code = @process.exitValue
  true
rescue java.lang.IllegalThreadStateException
  false
ensure
  log(:exit_code => @exit_code)
end
io() click to toggle source
# File lib/childprocess/jruby/process.rb, line 6
def io
  @io ||= JRuby::IO.new
end
pid() click to toggle source

Only supported in JRuby on a Unix operating system, thanks to limitations in Java's classes

@return [Fixnum] the pid of the process after it has started @raise [NotImplementedError] when trying to access pid on non-Unix platform

# File lib/childprocess/jruby/process.rb, line 38
def pid
  if @process.getClass.getName != "java.lang.UNIXProcess"
    raise NotImplementedError.new("pid is not supported by JRuby child processes on Windows")
  end

  # About the best way we can do this is with a nasty reflection-based impl
  # Thanks to Martijn Courteaux
  # http://stackoverflow.com/questions/2950338/how-can-i-kill-a-linux-process-in-java-with-sigkill-process-destroy-does-sigter/2951193#2951193
  field = @process.getClass.getDeclaredField("pid")
  field.accessible = true
  field.get(@process)
end
stop(timeout = nil) click to toggle source
# File lib/childprocess/jruby/process.rb, line 22
def stop(timeout = nil)
  assert_started

  @process.destroy
  @process.waitFor # no way to actually use the timeout here..

  @exit_code = @process.exitValue
end

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