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|
require "set"
require "thread"
module Bunny
module Concurrent
# A SortedSet variation that synchronizes key mutation operations.
#
# @note This is NOT a complete SortedSet replacement. It only synchronizes operations needed by Bunny.
# @api public
class SynchronizedSortedSet < SortedSet
def initialize(enum = nil)
@mutex = Mutex.new
super
end
def add(o)
# avoid using Mutex#synchronize because of a Ruby 1.8.7-specific
# bug that prevents super from being called from within a block. MK.
@mutex.lock
begin
super
ensure
@mutex.unlock
end
end
def delete(o)
@mutex.lock
begin
super
ensure
@mutex.unlock
end
end
def delete_if(&block)
@mutex.lock
begin
super
ensure
@mutex.unlock
end
end
def include?(o)
@mutex.lock
begin
super
ensure
@mutex.unlock
end
end
end
end
end
|
