https://github.com/lfittl/objspace_helpers

Diff the heap to find leaks & get other ObjectSpace info more easily.
https://github.com/lfittl/objspace_helpers

Last synced: 21 days ago
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Diff the heap to find leaks & get other ObjectSpace info more easily.

• Host: GitHub
• URL: https://github.com/lfittl/objspace_helpers
• Owner: lfittl
• License: bsd-2-clause
• Created: 2014-11-22T05:07:58.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2014-12-09T13:44:56.000Z (about 10 years ago)
• Last Synced: 2024-04-25T20:04:29.951Z (8 months ago)
• Language: C
• Size: 160 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
objspace_helpers

================

Experimental repository containing helper functions for ObjectSpace in MRI Ruby 2.1+.

This repository uses a hand-crafted C extension which is not advised for production

or even day-by-day development use. It uses private APIs and stuff.

Installation

------------

```

gem install objspace_helpers

```

Usage

-----

```ruby

class SampleClass

  def initialize

    @@my_class_variable = "yay"

  end

end

top_level_leaks, leak_sources = ObjspaceHelpers.find_leak_sources(trace: true) do

  SampleClass.new

  'my_symbol'.to_sym

end

top_level_leaks

 => [#]

top_level_leaks.first.info

 => {"type"=>"STRING", "class"=>140285594211920, "frozen"=>true, "embedded"=>true, "fstring"=>true, "bytesize"=>9, "value"=>"my_symbol", "encoding"=>"US-ASCII", "references"=>[], "file"=>"(irb)", "line"=>9, "generation"=>21, "method"=>"to_sym", "flags"=>{"wb_protected"=>true, "old"=>true, "marked"=>true}}

leak_sources

 => {#=>[#]>]}

leak_sources.keys.first.info

 => {"type"=>"CLASS", "class"=>140285597413760, "name"=>"SampleClass", "references"=>[140285597413800, 140285597414440, 140285597415800, 140285595807360, 140285594220400], "memsize"=>672, "flags"=>{"wb_protected"=>true, "old"=>true, "marked"=>true}}

leak_sources.values[0][0].info

 => {"type"=>"STRING", "class"=>140285594211920, "embedded"=>true, "bytesize"=>3, "value"=>"yay", "encoding"=>"UTF-8", "references"=>[], "file"=>"(irb)", "line"=>3, "generation"=>21, "method"=>"initialize", "flags"=>{"wb_protected"=>true, "old"=>true, "marked"=>true}}

```

Authors

-------

- [Lukas Fittl](mailto:[email protected])

License

-------

Copyright (c) 2014, Lukas Fittl 


objspace_helpers is licensed under the 2-clause BSD license, see LICENSE file for details.