/usr/lib/ruby/vendor_ruby/moneta/adapters/memcached/dalli.rb is in ruby-moneta 0.7.20-2.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | require 'dalli'
module Moneta
module Adapters
# Memcached backend (using gem dalli)
# @api public
class MemcachedDalli
include Defaults
include ExpiresSupport
supports :create, :increment
attr_reader :backend
# @param [Hash] options
# @option options [String] :server ('127.0.0.1:11211') Memcached server
# @option options [Integer] :expires Default expiration time
# @option options [::Dalli::Client] :backend Use existing backend instance
# @option options Other options passed to `Dalli::Client#new`
def initialize(options = {})
self.default_expires = options.delete(:expires)
@backend = options[:backend] ||
begin
server = options.delete(:server) || '127.0.0.1:11211'
::Dalli::Client.new(server, options)
end
end
# (see Proxy#load)
def load(key, options = {})
value = @backend.get(key)
if value
expires = expires_value(options, nil)
@backend.set(key, value, expires || nil, :raw => true) if expires != nil
value
end
end
# (see Proxy#store)
def store(key, value, options = {})
@backend.set(key, value, expires_value(options) || nil, :raw => true)
value
end
# (see Proxy#delete)
def delete(key, options = {})
value = @backend.get(key)
@backend.delete(key)
value
end
# (see Proxy#increment)
def increment(key, amount = 1, options = {})
# FIXME: There is a Dalli bug, load(key) returns a wrong value after increment
# therefore we set default = nil and create the counter manually
# See https://github.com/mperham/dalli/issues/309
result =
if amount >= 0
@backend.incr(key, amount, expires_value(options) || nil, nil)
else
@backend.decr(key, -amount, expires_value(options) || nil, nil)
end
if result
result
elsif create(key, amount.to_s, options)
amount
else
increment(key, amount, options)
end
end
# (see Proxy#clear)
def clear(options = {})
@backend.flush_all
self
end
# (see Defaults#create)
def create(key, value, options = {})
@backend.add(key, value, expires_value(options) || nil, :raw => true)
end
# (see Proxy#close)
def close
@backend.close
nil
end
end
end
end
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