Class: Ladle::RubyProcess

Inherits:
Object
  • Object
show all
Defined in:
lib/ladle/ruby_process.rb

Overview

Implementations of platform-specific process handling behaviors for Ruby.

Instance Method Summary collapse

Constructor Details

#initialize(*command_and_args) ⇒ RubyProcess

Create a new process for the given command and its args.



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# File 'lib/ladle/ruby_process.rb', line 11

def initialize(*command_and_args)
  @command_and_args = command_and_args
end

Instance Method Details

#pid ⇒ Fixnum

Returns the PID for the process.

Returns:

  • (Fixnum) —

    the PID for the process



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# File 'lib/ladle/ruby_process.rb', line 42

def pid
  @pid
end

#popen ⇒ [IO, IO, IO]

Start the process and return pipes to its standard streams.

Returns:

  • ([IO, IO, IO]) —

    stdin, stdout, and stderr for the running process.



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# File 'lib/ladle/ruby_process.rb', line 19

def popen
  @pid, i, o, e = Open4.open4(@command_and_args.join(' '))
  [i, o, e]
end

#stop_gracefully

This method returns an undefined value.

Send signal 15 to the process.



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# File 'lib/ladle/ruby_process.rb', line 36

def stop_gracefully
  Process.kill 15, pid
end

#wait ⇒ Fixnum

Wait for the process to finish.

Returns:

  • (Fixnum) —

    the return status of the process.



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# File 'lib/ladle/ruby_process.rb', line 28

def wait
  Process.waitpid2(@pid)[1]
end