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Contents
# Copyright 2017 Google LLC
#
# 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
#
# https://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 Google
module Cloud
module PubSub
class Subscriber
# @private
class EnumeratorQueue
def initialize sentinel = nil
@queue = Queue.new
@sentinel = sentinel
end
def push obj
@queue.push obj
end
def quit_and_dump_queue
objs = []
objs << @queue.pop until @queue.empty?
# Signal that the enumerator is ready to end
@queue.push @sentinel
objs
end
def each
return enum_for :each unless block_given?
loop do
obj = @queue.pop
break if obj.equal? @sentinel
yield obj
end
end
end
end
end
Pubsub = PubSub unless const_defined? :Pubsub
end
end
Version data entries
66 entries across 66 versions & 1 rubygems