DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (d1ed7de67f5a)

VCS Links

Line Code
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 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_WindowsVersion_h
#define mozilla_WindowsVersion_h

#include "mozilla/Attributes.h"
#include <stdint.h>
#include <windows.h>

namespace mozilla {

inline bool
IsWindowsVersionOrLater(uint32_t aVersion)
{
  static uint32_t minVersion = 0;
  static uint32_t maxVersion = UINT32_MAX;

  if (minVersion >= aVersion) {
    return true;
  }

  if (aVersion >= maxVersion) {
    return false;
  }

  OSVERSIONINFOEX info;
  ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
  info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
  info.dwMajorVersion = aVersion >> 24;
  info.dwMinorVersion = (aVersion >> 16) & 0xFF;
  info.wServicePackMajor = (aVersion >> 8) & 0xFF;
  info.wServicePackMinor = aVersion & 0xFF;

  DWORDLONG conditionMask = 0;
  VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMINOR, VER_GREATER_EQUAL);

  if (VerifyVersionInfo(&info,
                        VER_MAJORVERSION | VER_MINORVERSION |
                        VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
                        conditionMask)) {
    minVersion = aVersion;
    return true;
  }

  maxVersion = aVersion;
  return false;
}

inline bool
IsWindowsBuildOrLater(uint32_t aBuild)
{
  static uint32_t minBuild = 0;
  static uint32_t maxBuild = UINT32_MAX;

  if (minBuild >= aBuild) {
    return true;
  }

  if (aBuild >= maxBuild) {
    return false;
  }

  OSVERSIONINFOEX info;
  ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
  info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
  info.dwBuildNumber = aBuild;

  DWORDLONG conditionMask = 0;
  VER_SET_CONDITION(conditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL);

  if (VerifyVersionInfo(&info, VER_BUILDNUMBER, conditionMask)) {
    minBuild = aBuild;
    return true;
  }

  maxBuild = aBuild;
  return false;
}

MOZ_ALWAYS_INLINE bool
IsXPSP3OrLater()
{
  return IsWindowsVersionOrLater(0x05010300ul);
}

MOZ_ALWAYS_INLINE bool
IsWin2003OrLater()
{
  return IsWindowsVersionOrLater(0x05020000ul);
}

MOZ_ALWAYS_INLINE bool
IsWin2003SP2OrLater()
{
  return IsWindowsVersionOrLater(0x05020200ul);
}

MOZ_ALWAYS_INLINE bool
IsVistaOrLater()
{
  return IsWindowsVersionOrLater(0x06000000ul);
}

MOZ_ALWAYS_INLINE bool
IsVistaSP1OrLater()
{
  return IsWindowsVersionOrLater(0x06000100ul);
}

MOZ_ALWAYS_INLINE bool
IsWin7OrLater()
{
  return IsWindowsVersionOrLater(0x06010000ul);
}

MOZ_ALWAYS_INLINE bool
IsWin7SP1OrLater()
{
  return IsWindowsVersionOrLater(0x06010100ul);
}

MOZ_ALWAYS_INLINE bool
IsWin8OrLater()
{
  return IsWindowsVersionOrLater(0x06020000ul);
}

MOZ_ALWAYS_INLINE bool
IsNotWin7PreRTM()
{
  return IsWin7SP1OrLater() || !IsWin7OrLater() ||
         IsWindowsBuildOrLater(7600);
}

} // namespace mozilla

#endif /* mozilla_WindowsVersion_h */