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# frozen_string_literal: true
module Gitlab
module Memory
class Watchdog
class Configuration
class MonitorStack
def initialize
@monitors = []
end
def push(monitor_class, *args, **kwargs, &block)
@monitors.push(build_monitor_state(monitor_class, *args, **kwargs, &block))
end
def call_each
@monitors.each do |monitor|
yield monitor.call
end
end
def empty?
@monitors.empty?
end
private
def build_monitor_state(monitor_class, *args, max_strikes:, monitor_name: nil, **kwargs, &block)
monitor = build_monitor(monitor_class, *args, **kwargs, &block)
monitor_name ||= monitor_class.name.demodulize.underscore
Gitlab::Memory::Watchdog::MonitorState.new(monitor, max_strikes: max_strikes, monitor_name: monitor_name)
end
def build_monitor(monitor_class, *args, **kwargs, &block)
monitor_class.new(*args, **kwargs, &block)
end
end
DEFAULT_SLEEP_TIME_SECONDS = 60
attr_writer :event_reporter, :handler, :sleep_time_seconds
def monitors
@monitor_stack ||= MonitorStack.new
yield @monitor_stack if block_given?
@monitor_stack
end
def handler
@handler ||= Handlers::NullHandler.instance
end
def event_reporter
@event_reporter ||= EventReporter.new
end
# Used to control the frequency with which the watchdog will wake up and poll the GC.
def sleep_time_seconds
@sleep_time_seconds ||= DEFAULT_SLEEP_TIME_SECONDS
end
end
end
end
end
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