mfbt/WindowsVersion.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_WindowsVersion_h
   8 #define mozilla_WindowsVersion_h
   9
  10 #include "mozilla/Atomics.h"
  11 #include "mozilla/Attributes.h"
  12 #include <stdint.h>
  13 #include <windows.h>
  14
  15 namespace mozilla {
  16
  17 inline bool IsWindows10BuildOrLater(uint32_t aBuild) {
  18   static Atomic<uint32_t> minBuild(0);
  19   static Atomic<uint32_t> maxBuild(UINT32_MAX);
  20
  21   if (minBuild >= aBuild) {
  22     return true;
  23   }
  24
  25   if (aBuild >= maxBuild) {
  26     return false;
  27   }
  28
  29   OSVERSIONINFOEXW info;
  30   ZeroMemory(&info, sizeof(OSVERSIONINFOEXW));
  31   info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
  32   info.dwMajorVersion = 10;
  33   info.dwBuildNumber = aBuild;
  34
  35   DWORDLONG conditionMask = 0;
  36   VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
  37   VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
  38   VER_SET_CONDITION(conditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL);
  39   VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
  40   VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMINOR, VER_GREATER_EQUAL);
  41
  42   if (VerifyVersionInfoW(&info,
  43                          VER_MAJORVERSION | VER_MINORVERSION | VER_BUILDNUMBER |
  44                              VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
  45                          conditionMask)) {
  46     minBuild = aBuild;
  47     return true;
  48   }
  49
  50   maxBuild = aBuild;
  51   return false;
  52 }
  53
  54 MOZ_ALWAYS_INLINE bool IsWin10AnniversaryUpdateOrLater() {
  55   return IsWindows10BuildOrLater(14393);
  56 }
  57
  58 MOZ_ALWAYS_INLINE bool IsWin10CreatorsUpdateOrLater() {
  59   return IsWindows10BuildOrLater(15063);
  60 }
  61
  62 MOZ_ALWAYS_INLINE bool IsWin10FallCreatorsUpdateOrLater() {
  63   return IsWindows10BuildOrLater(16299);
  64 }
  65
  66 MOZ_ALWAYS_INLINE bool IsWin10Sep2018UpdateOrLater() {
  67   return IsWindows10BuildOrLater(17763);
  68 }
  69
  70 MOZ_ALWAYS_INLINE bool IsWin11OrLater() {
  71   return IsWindows10BuildOrLater(22000);
  72 }
  73
  74 MOZ_ALWAYS_INLINE bool IsWin1122H2OrLater() {
  75   return IsWindows10BuildOrLater(22621);
  76 }
  77
  78 }  // namespace mozilla
  79
  80 #endif /* mozilla_WindowsVersion_h */