зеркало из https://github.com/github/ruby.git
145 строки
3.8 KiB
Ruby
145 строки
3.8 KiB
Ruby
# frozen_string_literal: false
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module Memory
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keys = []
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case
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when File.exist?(procfile = "/proc/self/status") && (pat = /^Vm(\w+):\s+(\d+)/) =~ (data = File.binread(procfile))
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PROC_FILE = procfile
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VM_PAT = pat
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def self.read_status
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IO.foreach(PROC_FILE, encoding: Encoding::ASCII_8BIT) do |l|
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yield($1.downcase.intern, $2.to_i * 1024) if VM_PAT =~ l
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end
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end
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data.scan(pat) {|k, v| keys << k.downcase.intern}
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when /mswin|mingw/ =~ RUBY_PLATFORM
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require 'fiddle/import'
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require 'fiddle/types'
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module Win32
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extend Fiddle::Importer
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dlload "kernel32.dll", "psapi.dll"
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include Fiddle::Win32Types
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typealias "SIZE_T", "size_t"
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PROCESS_MEMORY_COUNTERS = struct [
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"DWORD cb",
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"DWORD PageFaultCount",
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"SIZE_T PeakWorkingSetSize",
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"SIZE_T WorkingSetSize",
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"SIZE_T QuotaPeakPagedPoolUsage",
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"SIZE_T QuotaPagedPoolUsage",
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"SIZE_T QuotaPeakNonPagedPoolUsage",
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"SIZE_T QuotaNonPagedPoolUsage",
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"SIZE_T PagefileUsage",
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"SIZE_T PeakPagefileUsage",
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]
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typealias "PPROCESS_MEMORY_COUNTERS", "PROCESS_MEMORY_COUNTERS*"
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extern "HANDLE GetCurrentProcess()", :stdcall
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extern "BOOL GetProcessMemoryInfo(HANDLE, PPROCESS_MEMORY_COUNTERS, DWORD)", :stdcall
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module_function
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def memory_info
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size = PROCESS_MEMORY_COUNTERS.size
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data = PROCESS_MEMORY_COUNTERS.malloc
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data.cb = size
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data if GetProcessMemoryInfo(GetCurrentProcess(), data, size)
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end
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end
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keys << :peak << :size
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def self.read_status
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if info = Win32.memory_info
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yield :peak, info.PeakPagefileUsage
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yield :size, info.PagefileUsage
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end
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end
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when (require_relative 'find_executable'
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pat = /^\s*(\d+)\s+(\d+)$/
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pscmd = EnvUtil.find_executable("ps", "-ovsz=", "-orss=", "-p", $$.to_s) {|out| pat =~ out})
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pscmd.pop
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PAT = pat
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PSCMD = pscmd
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keys << :size << :rss
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def self.read_status
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if PAT =~ IO.popen(PSCMD + [$$.to_s], "r", err: [:child, :out], &:read)
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yield :size, $1.to_i*1024
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yield :rss, $2.to_i*1024
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end
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end
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else
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def self.read_status
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raise NotImplementedError, "unsupported platform"
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end
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end
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if !keys.empty?
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Status = Struct.new(*keys)
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end
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end
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if defined?(Memory::Status)
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class Memory::Status
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def _update
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Memory.read_status do |key, val|
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self[key] = val
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end
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end
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Header = members.map {|k| k.to_s.upcase.rjust(6)}.join('')
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Format = "%6d"
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def initialize
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_update
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end
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def to_s
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status = each_pair.map {|n,v|
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"#{n}:#{v}"
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}
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"{#{status.join(",")}}"
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end
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def self.parse(str)
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status = allocate
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str.scan(/(?:\A\{|\G,)(#{members.join('|')}):(\d+)(?=,|\}\z)/) do
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status[$1] = $2.to_i
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end
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status
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end
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end
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# On some platforms (e.g. Solaris), libc malloc does not return
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# freed memory to OS because of efficiency, and linking with extra
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# malloc library is needed to detect memory leaks.
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#
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case RUBY_PLATFORM
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when /solaris2\.(?:9|[1-9][0-9])/i # Solaris 9, 10, 11,...
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bits = [nil].pack('p').size == 8 ? 64 : 32
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if ENV['LD_PRELOAD'].to_s.empty? &&
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ENV["LD_PRELOAD_#{bits}"].to_s.empty? &&
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(ENV['UMEM_OPTIONS'].to_s.empty? ||
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ENV['UMEM_OPTIONS'] == 'backend=mmap') then
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envs = {
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'LD_PRELOAD' => 'libumem.so',
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'UMEM_OPTIONS' => 'backend=mmap'
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}
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args = [
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envs,
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"--disable=gems",
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"-v", "-",
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]
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_, err, status = EnvUtil.invoke_ruby(args, "exit(0)", true, true)
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if status.exitstatus == 0 && err.to_s.empty? then
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Memory::NO_MEMORY_LEAK_ENVS = envs
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end
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end
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end #case RUBY_PLATFORM
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end
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