mruby-k2hash

mruby binding of yahoojapan/k2hash

Quickstart

1. build mruby with mruby-k2hash. Or use the Docker image.

# mruby root dir
$ MRUBY_CONFIG=./path/to/build_config.rb ./minirake

2. Run mirb and test K2Hash class

$ ./build/host/bin/mirb
mirb - Embeddable Interactive Ruby Shell

> 
>
> k2hash = K2Hash.new('/tmp/tmp.k2hash', 0666, K2Hash::WRCREAT)
 => #<K2Hash:0x127ada0>
> k2hash.store('key', 'value')
 => nil
> k2hash.fetch('key')
 => "value"
> k2hash.store('key', 'new value')
 => nil
> k2hash.fetch('key')
 => "new value"
> k2hash['key2'] = 'value2'
 => "value2"
> k2hash['key2']
 => "value2"
> k2hash.close
 => nil

Implemented methods

• DBM like methods:

  • H2Hash has each so you can also use Enumerable methods.

method	implemented?
[]	✔️
[]=	✔️
clear	✔️
close	✔️
closed?	✔️
delete	✔️
delete_if	✔️
reject!	✔️
each	✔️
each_pair	✔️
each_key	✔️
each_value	✔️
empty?	✔️
fetch	✔️
has_key?	✔️
include?	✔️
key?	✔️
member?	✔️
has_value?	✔️
value?	✔️
invert	✔️
key	✔️
keys	✔️
length	✔️
size	✔️
reject	✔️
replace	✔️
select	✔️
shift	✔️
store	✔️
to_a	✔️
to_hash	✔️
update	✔️
values	✔️
values_at	✔️

• subkey

  • fetch_subkeys(key) -> Array returns subkey array corresponding to the key str
  • store_subkeys(key, subkeys) -> self set the subkey array to the key str

TODO

• Support k2hash features. Especially...:

  • open mode
  • transaction
  • queue
  • attributes

License

MITL