25 lines
650 B
Ruby
25 lines
650 B
Ruby
|
# frozen_string_literal: true
|
||
|
|
|
||
|
|
module Gitlab
|
||
|
|
module Memory
|
||
|
|
class Watchdog
|
||
|
|
module Handlers
|
||
|
|
# This handler does nothing. It returns `false` to indicate to the
|
||
|
|
# caller that the situation has not been dealt with so it will
|
||
|
|
# receive calls repeatedly if fragmentation remains high.
|
||
|
|
#
|
||
|
|
# This is useful for "dress rehearsals" in production since it allows
|
||
|
|
# us to observe how frequently the handler is invoked before taking action.
|
||
|
|
class NullHandler
|
||
|
|
include Singleton
|
||
|
|
|
||
|
|
def call
|
||
|
|
# NOP
|
||
|
|
false
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|