mruby-process

Implementation of the Ruby 2.4.1 Core Library Process for mruby.

All listed methods have been tested with Ubuntu, MacOS and Windows. Cross compilation works as well.

system { VAR: 'var' }, 'echo $VAR', out: pipe

Include mruby/ext/process.h to use the native methods within your own project:

// To use kill, waitpid, fork, spawn, ... on Unix and Win32

#ifdef HAVE_MRB_PROCESS_H
# include "mruby/ext/process.h"
#endif

static pid_t
spawn_process(const char *path, char *const argv[], char *const envp[])
{
    return spawnve(path, argv, envp);
}

Installation

Add the line below to your build_config.rb:

MRuby::Build.new do |conf|
  # ... (snip) ...
  conf.gem 'mruby-process2'
  # conf.gem github: 'appPlant/mruby-process'
end

Or add this line to your aplication's mrbgem.rake:

MRuby::Gem::Specification.new('your-mrbgem') do |spec|
  # ... (snip) ...
  spec.add_dependency 'mruby-process', mgem 'mruby-process2'
end

Implemented methods

Process

• https://ruby-doc.org/core-2.4.1/Process.html

method	mruby-process	Comment
$0	o
$PROGRAM_NAME	o
$$	o
$PID	o
$PROCESS_ID	o
::WNOHANG	o
::WUNTRACED	o
#abort	o
#argv0	o
#clock_getres
#clock_gettime
#daemon
#detach
#egid		Implemented in mruby-process-ext
#egid=		Implemented in mruby-process-sys
#euid		Implemented in mruby-process-ext
#euid=		Implemented in mruby-process-sys
#exec	o
#exit	o
#exit!	o
#fork	o	If fork is not usable, Process.respond_to?(:fork) returns false.
#getpgid
#getpgrp
#getpriority
#getrlimit
#getsid
#gid		Implemented in mruby-process-ext
#gid=		Implemented in mruby-process-sys
#groups		Implemented in mruby-process-sys
#groups=		Implemented in mruby-process-sys
#initgroups
#kill	o
#maxgroups
#maxgroups=
#pid	o
#ppid	o
#setpgid
#setpgrp
#setpriority
#setproctitle
#setrlimit
#setsid
#spawn	o
#times
#uid		Implemented in mruby-process-ext
#uid=		Implemented in mruby-process-ext
#wait	o
#wait2	o
#waitall	o
#waitpid	o
#waitpid2	o

Process::Status

• https://ruby-doc.org/core-2.4.1/Process/Status.html

method	mruby-process
$?	o
$CHILD_STATUS	o
#&
#==	o
#>>	o
#coredump?	o
#exited?	o
#exitstatus	o
#inspect	o
#pid	o
#signaled?	o
#stopped?	o
#stopsig	o
#success?	o
#termsig	o
#to_i	o
#to_s	o

Kernel

• https://ruby-doc.org/core-2.4.1/Kernel.html

method	mruby-process	Comment
#`		Implemented in mruby-io.
#abort	o
#exec	o
#exit	o
#exit!	o
#fork	o	If fork is not usable, Process.respond_to?(:fork) returns false.
#sleep		Implemented in mruby-sleep.
#spawn	o
#system	o

Signal

• https://ruby-doc.org/core-2.4.1/Signal.html

method	mruby-process	Comment
::signame	o
::list	o
::trap		Implemented in mruby-signal.

Development

Clone the repo:

$ git clone https://github.com/appplant/mruby-process.git && cd mruby-process/

Compile the source:

$ rake compile

Run the tests:

$ rake test

Caveats

• $? may not work correctly on the platform where pid_t is not int or MRB_INT_MAX is less than PID_MAX (or /proc/sys/kernel/pid_max).

License

Copyright (c) 2012 Internet Initiative Japan Inc. Copyright (c) 2017 appPlant GmbH.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.