class Rack::Session::Redis

Constants

DEFAULT_OPTIONS

Attributes

mutex[R]
pool[R]

Public Class Methods

new(app, options = {}) click to toggle source
Calls superclass method
# File lib/rack/session/redis.rb, line 13
def initialize(app, options = {})
  super

  @mutex = Mutex.new
  @pool = ::Redis::Store::Factory.create @default_options[:redis_server]
end

Public Instance Methods

destroy_session(env, session_id, options) click to toggle source
# File lib/rack/session/redis.rb, line 46
def destroy_session(env, session_id, options)
  with_lock(env) do
    @pool.del(session_id)
    generate_sid unless options[:drop]
  end
end
generate_sid() click to toggle source
Calls superclass method
# File lib/rack/session/redis.rb, line 20
def generate_sid
  loop do
    sid = super
    break sid unless @pool.get(sid)
  end
end
get_session(env, sid) click to toggle source
# File lib/rack/session/redis.rb, line 27
def get_session(env, sid)
  with_lock(env, [nil, {}]) do
    unless sid and session = @pool.get(sid)
      sid, session = generate_sid, {}
      unless /^OK/ =~ @pool.set(sid, session, @default_options)
        raise "Session collision on '#{sid.inspect}'"
      end
    end
    [sid, session]
  end
end
set_session(env, session_id, new_session, options) click to toggle source
# File lib/rack/session/redis.rb, line 39
def set_session(env, session_id, new_session, options)
  with_lock(env, false) do
    @pool.set session_id, new_session, options
    session_id
  end
end
with_lock(env, default=nil) { || ... } click to toggle source
# File lib/rack/session/redis.rb, line 53
def with_lock(env, default=nil)
  @mutex.lock if env['rack.multithread']
  yield
rescue Errno::ECONNREFUSED
  if $VERBOSE
    warn "#{self} is unable to find Redis server."
    warn $!.inspect
  end
  default
ensure
  @mutex.unlock if @mutex.locked?
end