Sha256: 0f3b8b94469a2fb6bfaace8ad99c76883b77af29880ccc8eadd43255b17b22e8
Contents?: true
Size: 949 Bytes
Versions: 48
Compression:
Stored size: 949 Bytes
Contents
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
48 entries across 48 versions & 1 rubygems