50 lines
1,017 B
Ruby
50 lines
1,017 B
Ruby
# frozen_string_literal: true
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module Gitlab
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module ExclusiveLeaseHelpers
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# Wrapper around ExclusiveLease that adds retry logic
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class SleepingLock
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delegate :cancel, to: :@lease
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def initialize(key, timeout:, delay:)
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@lease = ::Gitlab::ExclusiveLease.new(key, timeout: timeout)
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@delay = delay
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@attempts = 0
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end
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def obtain(max_attempts)
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until held?
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raise FailedToObtainLockError, 'Failed to obtain a lock' if attempts >= max_attempts
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sleep(sleep_sec) unless first_attempt?
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try_obtain
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end
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end
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def retried?
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attempts > 1
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end
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private
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attr_reader :delay, :attempts
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def held?
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@uuid.present?
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end
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def try_obtain
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@uuid ||= @lease.try_obtain
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@attempts += 1
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end
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def first_attempt?
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attempts == 0
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end
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def sleep_sec
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delay.respond_to?(:call) ? delay.call(attempts) : delay
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end
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end
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end
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end
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