https://github.com/matsumotory/mruby-criu

CRIU, Checkpoint Restart In Userspace for Linux, bindig for mruby
https://github.com/matsumotory/mruby-criu

Last synced: about 2 months ago
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CRIU, Checkpoint Restart In Userspace for Linux, bindig for mruby

• Host: GitHub
• URL: https://github.com/matsumotory/mruby-criu
• Owner: matsumotory
• License: other
• Created: 2014-04-13T11:31:07.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2019-12-12T01:02:24.000Z (about 5 years ago)
• Last Synced: 2024-10-18T18:26:32.469Z (3 months ago)
• Language: C
• Size: 19.5 KB
• Stars: 10
• Watchers: 4
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# mruby-criu

[CRIU, Checkpoint Restart In Userspace for Linux](http://criu.org/Main_Page), binding for mruby.

## install by mrbgems 

- add conf.gem line to `build_config.rb` 

```ruby

MRuby::Build.new do |conf|

    # ... (snip) ...

    conf.gem :git => 'https://github.com/matsumoto-r/mruby-criu.git'

end

```

## Dump and Restore Process

### Isolated process run

##### loop.sh

```bash

#!/bin/bash

cont=0

while :; do

  sleep 1

  cont=`expr $cont + 1`

  echo $cont

done

```

##### run

```bash

setsid ./loop.sh < /dev/null &> loop_log.txt  &

```

##### get pid

```bash

ps -C loop.sh

  PID TTY          TIME CMD

 4823 ?        00:00:00 loop.sh

[1]+  Done                    setsid ./loop.sh < /dev/null &>loop_log.txt

```

##### check log

```bash

tail -f loop_log.txt

1

2

3

...

```

### Dump(Checkpoint)

```ruby

socket = "/var/run/criu_service.socket"

images = "/tmp/dump_test"

log = "dump.log"

pid = 4823

c = CRIU.new

c.set_pid pid

c.set_images_dir images

c.set_service_address socket

c.set_log_file log

c.dump

```

##### dump loop.sh 

```

./bin/mruby dump.rb

```

then, ``loop.sh`` was killed.

```bash

tail -f loop_log.txt

1

2

3

(stopped)

```

### Restore

```ruby

socket = "/var/run/criu_service.socket"

images = "/tmp/dump_test"

log = "restore.log"

c = CRIU.new

c.set_service_address socket

c.set_images_dir images

c.set_log_file log

c.restore

```

##### restore loop.sh

```

./bin/mruby restore.rb

```

then, loop.sh was restored

```bash

tail -f loop_log.txt

(restored)

4

5

6

...

```

## License

under the MIT License:

- see LICENSE file