mruby-exec's Introduction

mruby-exec

Small execv/execve wrapper

install by mrbgems

add conf.gem line to build_config.rb

MRuby::Build.new do |conf|

  # ... (snip) ...

  conf.gem :github => 'haconiwa/mruby-exec'
end

example

Exec.execv("/bin/bash")
#=> The process will become bash

# Also you can pass more than 1 params
Exec.execv("/bin/bash", "-l", "-c", "echo Hello exec")

Exec.execve({"FOO" => "bar"}, "/bin/bash", "-l")

# ... or
# env cleanup
Exec.execve({}, "/bin/bash", "-l")

License

under the MIT License: see LICENSE file

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mruby-exec's Issues

Casual test case occurs SEGV?

When added this one:

assert("Exec#exec") do
  p = Process.fork { Exec.exec "/bin/sleep", "0.1" }
  p, status = Process.waitpid2 p
  assert_true(p.is_a?(Integer))
  assert_true(status.success?)
end

Then it makes SEGV once about every 4 times.

But, but this seems to make no SEGV...

loop do
  p = Process.fork { exec "/bin/bash", "-c", "echo -n ." }
  Process.waitpid p
end

$ ./mruby/bin/mruby /tmp/just_loop.rb
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