Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP

FFI based ruby library to access Tokyo Cabinet and Tokyo Tyrant. (This library is in "maintenance mode", see http://jmettraux.wordpress.com/2010/02/26/retiring-rufus-tokyo/ for an explanation)

Fetching latest commit…

Cannot retrieve the latest commit at this time

README.rdoc

rufus-tokyo

ruby-ffi based interface to Tokyo Cabinet and Tokyo Tyrant.

The 'abstract' and the 'table' API are covered for now.

installation

sudo gem install rufus-tokyo --source http://gemcutter.org

(see after 'usage' for how to install Tokyo Cabinet (and Tyrant) if required)

Rufus::Edo

Note : Rufus::Tokyo focuses on leveraging Hirabayashi-san's C libraries via ruby-ffi, but the gem rufus-tokyo also contains Rufus::Edo which wraps the Tokyo Cabinet/Tyrant author's [native] C bindings :

http://github.com/jmettraux/rufus-tokyo/tree/master/lib/rufus/edo

usage

hereafter TC references Tokyo Cabinet, while TT references Tokyo Tyrant.

the rdoc is at rufus.rubyforge.org/rufus-tokyo/

version [mis]match

this 'master' branch/version of rufus-tokyo works with

ffi 0.3.1, 0.3.5, 0.4.0, 0.5.0, 0.5.1

ruby 1.8.6
ruby 1.9.1p129
jruby 1.1.6, 1.2.0, 1.3.1
ree 1.8.7 2009.10 (thanks to http://rvm.beginrescueend.com)

TC 1.4.27 / 29 and TT 1.1.29 / 33

tc-ruby 1.26 / 29 and tt-ruby 1.10 / 12 (Rufus::Edo)

Rufus::Tokyo : pointing to the right library

By default Rufus::Tokyo (the FFI side) searches for Tokyo Cabinet and Tyrant dynamic libraries under /usr/lib/, /usr/lib64/, /opt/local/lib/ and /usr/local/lib/

If you had to install Tokyo Cabinet (and Tokyo Tyrant) in another location, you can set the environment variables TOKYO_CABINET_LIB and TOKYO_TYRANT_LIB to point to the absolute path of the dynamic library, like in :

export TOKYO_CABINET_LIB = /home/toto/tc/libtokyocabinet.so
export TOKYO_TYRANT_LIB = /home/toto/tc/libtokyotyrant.so

So that your rufus-tokyo enabled Ruby application can see the libraries.

TC Abstract API

tokyocabinet.sourceforge.net/spex-en.html#tcadbapi

to create a hash (file named 'data.tch')

require 'rubygems'
require 'rufus/tokyo'

db = Rufus::Tokyo::Cabinet.new('data.tch')

db['nada'] = 'surf'

p db['nada'] # => 'surf'
p db['lost'] # => nil

5000.times { |i| db[i.to_s] = "x" }

p db.inject { |r, (k, v)| k } # => 4999

db.close

TC Table API

tokyocabinet.sourceforge.net/spex-en.html#tctdbapi

require 'rubygems'
require 'rufus/tokyo'

t = Rufus::Tokyo::Table.new('table.tct')

t['pk0'] = { 'name' => 'alfred', 'age' => '22' }
t['pk1'] = { 'name' => 'bob', 'age' => '18' }
t['pk2'] = { 'name' => 'charly', 'age' => '45' }
t['pk3'] = { 'name' => 'doug', 'age' => '77' }
t['pk4'] = { 'name' => 'ephrem', 'age' => '32' }

p t.query { |q|
  q.add_condition 'age', :numge, '32'
  q.order_by 'age'
}
  # => [ {"name"=>"ephrem", :pk=>"pk4", "age"=>"32"},
  #      {"name"=>"charly", :pk=>"pk2", "age"=>"45"} ]

t.close

Note that the Tokyo Cabinet Table API does support transactions :

p t.size
  # => 0

t.transaction do
  t['pk0'] = { 'name' => 'alfred', 'age' => '22' }
  t['pk1'] = { 'name' => 'bob', 'age' => '18' }
  t.abort
end

p t.size
  # => 0

TT remote db

tokyocabinet.sourceforge.net/tyrantdoc/

to start a ttserver (backed by a hash), on the command line

ttserver -port 45001 data.tch

then, in Ruby :

require 'rubygems'
require 'rufus/tokyo/tyrant'

db = Rufus::Tokyo::Tyrant.new('localhost', 45001)

db['nada'] = 'surf'

p db['nada'] # => 'surf'
p db['lost'] # => nil

db.close

Rufus::Tokyo::Tyrant instances have a #stat method :

puts db.stat.inject('') { |s, (k, v)| s << "#{k} => #{v}\n" }
  # =>
  #   pid => 7566
  #   loadavg => 0.398438
  #   size => 528736
  #   rnum => 0
  #   time => 1234764065.305923
  #   sid => 898521513
  #   type => hash
  #   bigend => 0
  #   ru_sys => 3.398698
  #   version => 1.1.15
  #   ru_user => 2.155215
  #   ru_real => 3218.451152
  #   fd => 7

Note that it's also OK to make a Tokyo Tyrant server listen on a unix socket :

ttserver -host /tmp/ttsocket -port 0 data.tch

and then :

require 'rubygems'
require 'rufus/tokyo/tyrant'
db = Rufus::Tokyo::Tyrant.new('/tmp/ttsocket')
db['a'] = 'alpha'
db.close

TT remote table

to start a ttserver (backed by a table), on the command line :

ttserver -port 45002 data.tct

then, in Ruby, much like a local table :

require 'rubygems'
require 'rufus/tokyo/tyrant'

t = Rufus::Tokyo::TyrantTable.new('localhost', 45002)

t['pk0'] = { 'name' => 'alfred', 'age' => '22' }
t['pk1'] = { 'name' => 'bob', 'age' => '18' }
t['pk2'] = { 'name' => 'charly', 'age' => '45' }
t['pk3'] = { 'name' => 'doug', 'age' => '77' }
t['pk4'] = { 'name' => 'ephrem', 'age' => '32' }

p t.query { |q|
  q.add_condition 'age', :numge, '32'
  q.order_by 'age'
}
  # => [ {"name"=>"ephrem", :pk=>"pk4", "age"=>"32"},
  #      {"name"=>"charly", :pk=>"pk2", "age"=>"45"} ]

t.close

Rufus::Tokyo::TyrantTable instances have a #stat method :

puts t.stat.inject('') { |s, (k, v)| s << "#{k} => #{v}\n" }
  # =>
  #   pid => 7569
  #   loadavg => 0.295410
  #   size => 935792
  #   rnum => 0
  #   time => 1234764228.942014
  #   sid => 1027604232
  #   type => table
  #   bigend => 0
  #   ru_sys => 5.966750
  #   version => 1.1.15
  #   ru_user => 2.601947
  #   ru_real => 3382.084479
  #   fd => 10

Note that it's also OK to make a Tokyo Tyrant server listen on a unix socket :

ttserver -host /tmp/tttsocket -port 0 data.tct

and then :

require 'rubygems'
require 'rufus/tokyo/tyrant'
t = Rufus::Tokyo::TyrantTable.new('/tmp/tttsocket')
t['customer0'] = { 'name' => 'Heike no Kyomori', 'age' => '75' }
t.close

rdoc

more in the rdoc

don't hesitate to “man ttserver” on the command line.

or directly in the source

Tokyo Cabinet / Tyrant install

a compilation of notes is available at :

http://openwferu.rubyforge.org/tokyo.html

dependencies

the ruby gem 'ffi'

mailing list

On the rufus-ruby list :

http://groups.google.com/group/rufus-ruby

Note : Flinn Mueller started an english speaking mailing list for TC / TT / TD

http://groups.google.com/group/tokyocabinet-users

issue tracker

http://github.com/jmettraux/rufus-tokyo/issues/

irc

irc.freenode.net #ruote

source

github.com/jmettraux/rufus-tokyo

git clone git://github.com/jmettraux/rufus-tokyo.git

credits

many thanks to the author of Tokyo Cabinet, Mikio Hirabayashi, and to the authors of ruby-ffi

dystopia interface developed with and sponsored by Seven Scale <sevenscale.com/>, creators of Open Syslog.

authors

the rest of Rufus

rufus.rubyforge.org

license

MIT

Something went wrong with that request. Please try again.