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# frozen_string_literal: true
require 'memory_profiler'
require 'benchmark/memory/measurement'
module Benchmark
module Memory
class Job
# Hold a labelled job for later measurement.
class Task
# Instantiate a job task for later measurement.
#
# @param label [#to_s] The label for the benchmark.
# @param action [#call] The code to be measured.
#
# @raise [ArgumentError] if the action does not respond to `#call`.
def initialize(label, action)
unless action.respond_to?(:call)
raise(
ArgumentError,
"Invalid action (#{@action.inspect} does not respond to call)"
)
end
@label = label
@action = action
end
# @return [#call] The code to be measured.
attr_reader :action
# @return [#to_s] The label for the benchmark.
attr_reader :label
# Call the action and report on its memory usage.
#
# @return [Measurement] the memory usage measurement of the code.
def call
result = while_measuring_memory_usage { action.call }
Measurement.from_result(result)
end
private
def while_measuring_memory_usage(&block)
MemoryProfiler.report({}, &block)
end
end
end
end
end
|
