1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mfbt/WindowsVersion.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,125 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#ifndef mozilla_WindowsVersion_h
1.9 +#define mozilla_WindowsVersion_h
1.10 +
1.11 +#include "mozilla/Attributes.h"
1.12 +#include <stdint.h>
1.13 +#include <windows.h>
1.14 +
1.15 +namespace mozilla
1.16 +{
1.17 + inline bool
1.18 + IsWindowsVersionOrLater(uint32_t aVersion)
1.19 + {
1.20 + static uint32_t minVersion = 0;
1.21 + static uint32_t maxVersion = UINT32_MAX;
1.22 +
1.23 + if (minVersion >= aVersion) {
1.24 + return true;
1.25 + }
1.26 +
1.27 + if (aVersion >= maxVersion) {
1.28 + return false;
1.29 + }
1.30 +
1.31 + OSVERSIONINFOEX info;
1.32 + ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
1.33 + info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
1.34 + info.dwMajorVersion = aVersion >> 24;
1.35 + info.dwMinorVersion = (aVersion >> 16) & 0xFF;
1.36 + info.wServicePackMajor = (aVersion >> 8) & 0xFF;
1.37 + info.wServicePackMinor = aVersion & 0xFF;
1.38 +
1.39 + DWORDLONG conditionMask = 0;
1.40 + VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
1.41 + VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
1.42 + VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
1.43 + VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMINOR, VER_GREATER_EQUAL);
1.44 +
1.45 + if (VerifyVersionInfo(&info,
1.46 + VER_MAJORVERSION | VER_MINORVERSION |
1.47 + VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
1.48 + conditionMask)) {
1.49 + minVersion = aVersion;
1.50 + return true;
1.51 + }
1.52 +
1.53 + maxVersion = aVersion;
1.54 + return false;
1.55 + }
1.56 +
1.57 + inline bool
1.58 + IsWindowsBuildOrLater(uint32_t aBuild)
1.59 + {
1.60 + static uint32_t minBuild = 0;
1.61 + static uint32_t maxBuild = UINT32_MAX;
1.62 +
1.63 + if (minBuild >= aBuild) {
1.64 + return true;
1.65 + }
1.66 +
1.67 + if (aBuild >= maxBuild) {
1.68 + return false;
1.69 + }
1.70 +
1.71 + OSVERSIONINFOEX info;
1.72 + ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
1.73 + info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
1.74 + info.dwBuildNumber = aBuild;
1.75 +
1.76 + DWORDLONG conditionMask = 0;
1.77 + VER_SET_CONDITION(conditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL);
1.78 +
1.79 + if (VerifyVersionInfo(&info, VER_BUILDNUMBER, conditionMask)) {
1.80 + minBuild = aBuild;
1.81 + return true;
1.82 + }
1.83 +
1.84 + maxBuild = aBuild;
1.85 + return false;
1.86 + }
1.87 +
1.88 + MOZ_ALWAYS_INLINE bool
1.89 + IsXPSP3OrLater()
1.90 + { return IsWindowsVersionOrLater(0x05010300ul); }
1.91 +
1.92 + MOZ_ALWAYS_INLINE bool
1.93 + IsWin2003OrLater()
1.94 + { return IsWindowsVersionOrLater(0x05020000ul); }
1.95 +
1.96 + MOZ_ALWAYS_INLINE bool
1.97 + IsWin2003SP2OrLater()
1.98 + { return IsWindowsVersionOrLater(0x05020200ul); }
1.99 +
1.100 + MOZ_ALWAYS_INLINE bool
1.101 + IsVistaOrLater()
1.102 + { return IsWindowsVersionOrLater(0x06000000ul); }
1.103 +
1.104 + MOZ_ALWAYS_INLINE bool
1.105 + IsVistaSP1OrLater()
1.106 + { return IsWindowsVersionOrLater(0x06000100ul); }
1.107 +
1.108 + MOZ_ALWAYS_INLINE bool
1.109 + IsWin7OrLater()
1.110 + { return IsWindowsVersionOrLater(0x06010000ul); }
1.111 +
1.112 + MOZ_ALWAYS_INLINE bool
1.113 + IsWin7SP1OrLater()
1.114 + { return IsWindowsVersionOrLater(0x06010100ul); }
1.115 +
1.116 + MOZ_ALWAYS_INLINE bool
1.117 + IsWin8OrLater()
1.118 + { return IsWindowsVersionOrLater(0x06020000ul); }
1.119 +
1.120 + MOZ_ALWAYS_INLINE bool
1.121 + IsNotWin7PreRTM()
1.122 + {
1.123 + return IsWin7SP1OrLater() || !IsWin7OrLater() ||
1.124 + IsWindowsBuildOrLater(7600);
1.125 + }
1.126 +}
1.127 +
1.128 +#endif /* mozilla_WindowsVersion_h */
