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# frozen_string_literal: true
# rubocop:todo all
# Copyright (C) 2019-2020 MongoDB Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
module Mongo
module Auth
# Cache store for computed SCRAM credentials.
#
# @api private
module CredentialCache
class << self
attr_reader :store
end
MUTEX = Mutex.new
module_function def get(key)
MUTEX.synchronize do
@store ||= {}
@store[key]
end
end
module_function def set(key, value)
MUTEX.synchronize do
@store ||= {}
@store[key] = value
end
end
module_function def cache(key)
value = get(key)
if value.nil?
value = yield
set(key, value)
end
value
end
module_function def clear
MUTEX.synchronize do
@store = {}
end
end
end
end
end
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