README.md

NOTE: This repository is a forked version. The original version is on https://github.com/matsumoto-r/mruby-vedis.git

mruby-vedis

vedis binding by mruby. vedis is an embeddable datastore C library built with over 70 commands similar in concept to Redis but without the networking layer since Vedis run in the same process of the host application. Please see vedis pages.

install by mrbgems

• add conf.gem line to build_config.rb

MRuby::Build.new do |conf|

    # ... (snip) ...

    conf.gem :git => 'https://github.com/monami-ya-mrb/mruby-vedis.git'
end

example

# In-Memory
v = Vedis.new

# On-Disk
# v = Vedis.new "/path/to/vedis.db"

# sym ok
v["test"] = "bbb"
v[:hoge] = 2
v[:foo] = 3
v.set :fuga, "aaa"

# exec
r1 = v.exec "MSET username james age 27 mail [email protected]"
r2 = v.exec "MGET username age mail"

p v["test"]     #=> "bbb"
p v[:hoge]      #=> "2"
p v["foo"]      #=> "3"
p v.get :fuga   #=> "aaa"
p r1            #=> nil
p r2            #=> ["james", "27", "[email protected]"]

simple benchmark Vedis compared with Redis

• benchmark code

class SimpleBenchmark

  def initialize(width = 0)
    @width = width
  end

  def measure(label)
    start = Time.now
    yield if block_given?
    passed = Time.now - start

    puts "#{make_fixed_label(label)}passed time #{passed} sec"
  end

  def make_fixed_label(label)
   if @width - label.length > 0
      label + ' ' * (@width - label.length)
    else
      label
    end
  end

end

benchmark = SimpleBenchmark.new
r = Redis.new "127.0.0.1", 6379
v = Vedis.new
n = 100000

[r, v].each do |kvs|
  benchmark.measure("#{kvs.class}: ") do
    n.times do |t|
      kvs.set t.to_s, t.to_s
    end
  end
end

r.close
v.close

• result

$ mruby test_vedis_redis.rb 
Redis: passed time 10.785598 sec
Vedis: passed time 0.06595 sec

License

under the Sleepycat License:

• see LICENSE file

Trouble shoots.

Can't compile on my newlib environment

Try to modify your build_config.rb like this:

  conf.gem :github => 'monami-ya.mrb/mruby-vedis' do |g|
    g.cc.defines << %w(VEDIS_DISABLE_MMAP VEDIS_DISABLE_UTSNAME)
  end