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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 Debugger
##
# @private Helps keep tracking of backoff on calling APIs in loop
class Backoff
##
# Small interval to start with
DEFAULT_START_INTERVAL = 1
##
# Maximum interval value to use
DEFAULT_MAX_INTERVAL = 600
##
# Interval incremental multiplier
DEFAULT_MULTIPLIER = 2
##
# The current time interval should wait until next iteration
attr_reader :interval
def initialize start_interval = DEFAULT_START_INTERVAL,
max_interval = DEFAULT_MAX_INTERVAL,
multiplier = DEFAULT_MULTIPLIER
@start_interval = start_interval
@max_interval = max_interval
@multiplier = multiplier
end
##
# Resets backoff
def succeeded
@interval = nil
end
##
# Initialize backoff or increase backoff interval
def failed
@interval = if @interval
[@max_interval, @interval * @multiplier].min
else
@start_interval
end
end
##
# Check if a backoff delay should be applied
def backing_off?
!@interval.nil?
end
end
end
end
end
Version data entries
30 entries across 30 versions & 1 rubygems