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# frozen_string_literal: true
module TestProf
module EventProf
# Wrap methods with instrumentation
module Monitor
class BaseTracker
attr_reader :event
def initialize(event)
@event = event
end
def track
TestProf::EventProf.instrumenter.instrument(event) { yield }
end
end
class TopLevelTracker < BaseTracker
attr_reader :id
def initialize(event)
super
@id = :"event_prof_monitor_#{event}"
Thread.current[id] = 0
end
def track
Thread.current[id] += 1
res = nil
begin
res =
if Thread.current[id] == 1
super { yield }
else
yield
end
ensure
Thread.current[id] -= 1
end
res
end
end
class << self
def call(mod, event, *mids, guard: nil, top_level: false)
tracker = top_level ? TopLevelTracker.new(event) : BaseTracker.new(event)
patch = Module.new do
mids.each do |mid|
define_method(mid) do |*args, &block|
next super(*args, &block) unless guard.nil? || instance_exec(*args, &guard)
tracker.track { super(*args, &block) }
end
end
end
mod.prepend(patch)
end
end
end
end
end
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