1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
require "cabin/namespace"
require "cabin/metrics/histogram"
class Cabin::Metrics::Timer < Cabin::Metrics::Histogram
# Start timing something.
#
# If no block is given
# If a block is given, the execution of that block is timed.
#
public
def time(&block)
return time_block(&block) if block_given?
# Return an object we can .stop
# Call record(...) when we stop.
return TimerContext.new { |duration| record(duration) }
end # def time
private
def time_block(&block)
start = Time.now
block.call
record(Time.now - start)
end # def time_block
class TimerContext
public
def initialize(&stop_callback)
@start = Time.now
@callback = stop_callback
end
public
def stop
duration = Time.now - @start
@callback.call(duration)
end # def stop
end # class TimerContext
end # class Cabin::Metrics::Timer
|
