Sha256: b1f791144d9a7af013d2121ea859a6c3fdedcc83cd3337feba6cc702468734d5
Contents?: true
Size: 785 Bytes
Versions: 18
Compression:
Stored size: 785 Bytes
Contents
require "thread"
class FutureResource
def initialize
@resource_lock = Monitor.new
@resource_value_blocker = @resource_lock.new_cond
end
def set_yet?
@resource_lock.synchronize { defined? @resource }
end
def resource
@resource_lock.synchronize do
@resource_value_blocker.wait unless defined? @resource
@resource
end
end
def resource=(resource)
@resource_lock.synchronize do
raise ResourceAlreadySetException if defined? @resource
@resource = resource
@resource_value_blocker.broadcast
@resource_value_blocker = nil # Don't really need it anymore.
end
end
class ResourceAlreadySetException < StandardError
def initialize
super "Cannot set this resource twice!"
end
end
end
Version data entries
18 entries across 18 versions & 3 rubygems