// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file.
using HANDLE = void*; struct _OSVERSIONINFOEXW; struct _SYSTEM_INFO;
namespace base { namespace test { class ScopedOSInfoOverride;
} // namespace test
} // namespace base
namespace base { namespace win {
// The running version of Windows. This is declared outside OSInfo for // syntactic sugar reasons; see the declaration of GetVersion() below. // NOTE: Keep these in order so callers can do things like // "if (base::win::GetVersion() >= base::win::Version::VISTA) ...". // // This enum is used in metrics histograms, so they shouldn't be reordered or // removed. New values can be added before Version::WIN_LAST. enumclass Version {
PRE_XP = 0, // Not supported.
XP = 1,
SERVER_2003 = 2, // Also includes XP Pro x64 and Server 2003 R2.
VISTA = 3, // Also includes Windows Server 2008.
WIN7 = 4, // Also includes Windows Server 2008 R2.
WIN8 = 5, // Also includes Windows Server 2012.
WIN8_1 = 6, // Also includes Windows Server 2012 R2.
WIN10 = 7, // Threshold 1: Version 1507, Build 10240.
WIN10_TH2 = 8, // Threshold 2: Version 1511, Build 10586.
WIN10_RS1 = 9, // Redstone 1: Version 1607, Build 14393.
WIN10_RS2 = 10, // Redstone 2: Version 1703, Build 15063.
WIN10_RS3 = 11, // Redstone 3: Version 1709, Build 16299.
WIN10_RS4 = 12, // Redstone 4: Version 1803, Build 17134.
WIN10_RS5 = 13, // Redstone 5: Version 1809, Build 17763.
WIN10_19H1 = 14, // 19H1: Version 1903, Build 18362.
WIN10_20H1 = 15, // 20H1: Version 2004, Build 19041. // On edit, update tools\metrics\histograms\enums.xml "WindowsVersion" and // "GpuBlacklistFeatureTestResultsWindows2".
WIN_LAST, // Indicates error condition.
};
// A rough bucketing of the available types of versions of Windows. This is used // to distinguish enterprise enabled versions from home versions and potentially // server versions. Keep these values in the same order, since they are used as // is for metrics histogram ids. enum VersionType {
SUITE_HOME = 0,
SUITE_PROFESSIONAL,
SUITE_SERVER,
SUITE_ENTERPRISE,
SUITE_EDUCATION,
SUITE_LAST,
};
// A singleton that can be used to query various pieces of information about the // OS and process state. Note that this doesn't use the base Singleton class, so // it can be used without an AtExitManager. class BASE_EXPORT OSInfo { public: struct VersionNumber { int major; int minor; int build; int patch;
};
struct ServicePack { int major; int minor;
};
// The processor architecture this copy of Windows natively uses. For // example, given an x64-capable processor, we have three possibilities: // 32-bit Chrome running on 32-bit Windows: X86_ARCHITECTURE // 32-bit Chrome running on 64-bit Windows via WOW64: X64_ARCHITECTURE // 64-bit Chrome running on 64-bit Windows: X64_ARCHITECTURE enum WindowsArchitecture {
X86_ARCHITECTURE,
X64_ARCHITECTURE,
IA64_ARCHITECTURE,
ARM64_ARCHITECTURE,
OTHER_ARCHITECTURE,
};
// Whether a process is running under WOW64 (the wrapper that allows 32-bit // processes to run on 64-bit versions of Windows). This will return // WOW64_DISABLED for both "32-bit Chrome on 32-bit Windows" and "64-bit // Chrome on 64-bit Windows". WOW64_UNKNOWN means "an error occurred", e.g. // the process does not have sufficient access rights to determine this. enum WOW64Status {
WOW64_DISABLED,
WOW64_ENABLED,
WOW64_UNKNOWN,
};
static OSInfo* GetInstance();
// Separate from the rest of OSInfo so it can be used during early process // initialization. static WindowsArchitecture GetArchitecture();
// Like wow64_status(), but for the supplied handle instead of the current // process. This doesn't touch member state, so you can bypass the singleton. static WOW64Status GetWOW64StatusForProcess(HANDLE process_handle);
OSInfo(const _OSVERSIONINFOEXW& version_info, const _SYSTEM_INFO& system_info, int os_type);
~OSInfo();
// Returns a Version value for a given OS version tuple. static Version MajorMinorBuildToVersion(int major, int minor, int build);
Version version_;
VersionNumber version_number_;
VersionType version_type_;
ServicePack service_pack_;
// Represents the version of the OS associated to a release of // Windows 10. Each version may have different releases (such as patch // updates). This is the identifier of the release. // Example: // Windows 10 Version 1809 (OS build 17763) has multiple releases // (i.e. build 17763.1, build 17763.195, build 17763.379, ...). // See https://docs.microsoft.com/en-us/windows/windows-10/release-information // for more information.
std::string release_id_;
// A string, such as "Service Pack 3", that indicates the latest Service Pack // installed on the system. If no Service Pack has been installed, the string // is empty.
std::string service_pack_str_; int processors_;
size_t allocation_granularity_;
WOW64Status wow64_status_;
std::string processor_model_name_;
DISALLOW_COPY_AND_ASSIGN(OSInfo);
};
// Because this is by far the most commonly-requested value from the above // singleton, we add a global-scope accessor here as syntactic sugar.
BASE_EXPORT Version GetVersion();
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