Sha256: 10debcdb8e3fabb4ee6a45476ebd7ab438bdd0db27ef611da52bd5ae37149952
Contents?: true
Size: 979 Bytes
Versions: 18
Compression:
Stored size: 979 Bytes
Contents
# frozen_string_literal: true
require 'redlock'
module Hyrax
class LockManager
class UnableToAcquireLockError < StandardError; end
attr_reader :client
# @param [Fixnum] time_to_live How long to hold the lock in milliseconds
# @param [Fixnum] retry_count How many times to retry to acquire the lock before raising UnableToAcquireLockError
# @param [Fixnum] retry_delay Maximum wait time in milliseconds before retrying. Wait time is a random value between 0 and retry_delay.
def initialize(time_to_live, retry_count, retry_delay)
@ttl = time_to_live
@client = Redlock::Client.new([Redis.current], retry_count: retry_count, retry_delay: retry_delay)
end
# Blocks until lock is acquired or timeout.
def lock(key)
returned_from_block = nil
client.lock(key, @ttl) do |locked|
raise UnableToAcquireLockError unless locked
returned_from_block = yield
end
returned_from_block
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems