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# frozen_string_literal: true
require "rbconfig"
module TestProf
module MemoryProf
class Tracker
module RssTool
class ProcFS
def initialize
@statm = File.open("/proc/#{$$}/statm", "r")
@page_size = get_page_size
end
def track
@statm.seek(0)
@statm.gets.split(/\s/)[1].to_i * @page_size
end
private
def get_page_size
[
-> {
require "etc"
Etc.sysconf(Etc::SC_PAGE_SIZE)
},
-> { `getconf PAGE_SIZE`.to_i },
-> { 0x1000 }
].each do |strategy|
page_size = begin
strategy.call
rescue
next
end
return page_size
end
end
end
class PS
def track
`ps -o rss -p #{$$}`.strip.split.last.to_i * 1024
end
end
class GetProcess
def track
command.strip.split.last.to_i
end
private
def command
`powershell -Command "Get-Process -Id #{$$} | select WS"`
end
end
TOOLS = {
linux: ProcFS,
macosx: PS,
unix: PS,
windows: GetProcess
}.freeze
class << self
def tool
TOOLS[os_type]&.new
end
def os_type
case RbConfig::CONFIG["host_os"]
when /linux/
:linux
when /darwin|mac os/
:macosx
when /solaris|bsd/
:unix
when /mswin|msys|mingw|cygwin|bccwin|wince|emc/
:windows
end
end
end
end
end
end
end
|
