1 /* 2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef RTC_BASE_WIN_WINDOWS_VERSION_H_ 12 #define RTC_BASE_WIN_WINDOWS_VERSION_H_ 13 14 #include <stddef.h> 15 16 #include <string> 17 18 #include "rtc_base/constructor_magic.h" 19 20 typedef void* HANDLE; 21 22 namespace rtc { 23 namespace rtc_win { 24 25 // The running version of Windows. This is declared outside OSInfo for 26 // syntactic sugar reasons; see the declaration of GetVersion() below. 27 // NOTE: Keep these in order so callers can do things like 28 // "if (rtc_win::GetVersion() >= rtc_win::VERSION_VISTA) ...". 29 // 30 // This enum is used in metrics histograms, so they shouldn't be reordered or 31 // removed. New values can be added before VERSION_WIN_LAST. 32 enum Version { 33 VERSION_PRE_XP = 0, // Not supported. 34 VERSION_XP = 1, 35 VERSION_SERVER_2003 = 2, // Also includes XP Pro x64 and Server 2003 R2. 36 VERSION_VISTA = 3, // Also includes Windows Server 2008. 37 VERSION_WIN7 = 4, // Also includes Windows Server 2008 R2. 38 VERSION_WIN8 = 5, // Also includes Windows Server 2012. 39 VERSION_WIN8_1 = 6, // Also includes Windows Server 2012 R2. 40 VERSION_WIN10 = 7, // Threshold 1: Version 1507, Build 10240. 41 VERSION_WIN10_TH2 = 8, // Threshold 2: Version 1511, Build 10586. 42 VERSION_WIN10_RS1 = 9, // Redstone 1: Version 1607, Build 14393. 43 VERSION_WIN10_RS2 = 10, // Redstone 2: Version 1703, Build 15063. 44 VERSION_WIN10_RS3 = 11, // Redstone 3: Version 1709, Build 16299. 45 VERSION_WIN10_RS4 = 12, // Redstone 4: Version 1803, Build 17134. 46 VERSION_WIN10_RS5 = 13, // Redstone 5: Version 1809, Build 17763. 47 VERSION_WIN10_19H1 = 14, // 19H1: Version 1903, Build 18362. 48 // On edit, update tools\metrics\histograms\enums.xml "WindowsVersion" and 49 // "GpuBlacklistFeatureTestResultsWindows2". 50 VERSION_WIN_LAST, // Indicates error condition. 51 }; 52 53 // A rough bucketing of the available types of versions of Windows. This is used 54 // to distinguish enterprise enabled versions from home versions and potentially 55 // server versions. Keep these values in the same order, since they are used as 56 // is for metrics histogram ids. 57 enum VersionType { 58 SUITE_HOME = 0, 59 SUITE_PROFESSIONAL, 60 SUITE_SERVER, 61 SUITE_ENTERPRISE, 62 SUITE_EDUCATION, 63 SUITE_LAST, 64 }; 65 66 // A singleton that can be used to query various pieces of information about the 67 // OS and process state. Note that this doesn't use the base Singleton class, so 68 // it can be used without an AtExitManager. 69 class OSInfo { 70 public: 71 struct VersionNumber { 72 int major; 73 int minor; 74 int build; 75 int patch; 76 }; 77 78 struct ServicePack { 79 int major; 80 int minor; 81 }; 82 83 // The processor architecture this copy of Windows natively uses. For 84 // example, given an x64-capable processor, we have three possibilities: 85 // 32-bit Chrome running on 32-bit Windows: X86_ARCHITECTURE 86 // 32-bit Chrome running on 64-bit Windows via WOW64: X64_ARCHITECTURE 87 // 64-bit Chrome running on 64-bit Windows: X64_ARCHITECTURE 88 enum WindowsArchitecture { 89 X86_ARCHITECTURE, 90 X64_ARCHITECTURE, 91 IA64_ARCHITECTURE, 92 OTHER_ARCHITECTURE, 93 }; 94 95 // Whether a process is running under WOW64 (the wrapper that allows 32-bit 96 // processes to run on 64-bit versions of Windows). This will return 97 // WOW64_DISABLED for both "32-bit Chrome on 32-bit Windows" and "64-bit 98 // Chrome on 64-bit Windows". WOW64_UNKNOWN means "an error occurred", e.g. 99 // the process does not have sufficient access rights to determine this. 100 enum WOW64Status { 101 WOW64_DISABLED, 102 WOW64_ENABLED, 103 WOW64_UNKNOWN, 104 }; 105 106 static OSInfo* GetInstance(); 107 version()108 Version version() const { return version_; } version_number()109 VersionNumber version_number() const { return version_number_; } version_type()110 VersionType version_type() const { return version_type_; } service_pack()111 ServicePack service_pack() const { return service_pack_; } service_pack_str()112 std::string service_pack_str() const { return service_pack_str_; } architecture()113 WindowsArchitecture architecture() const { return architecture_; } processors()114 int processors() const { return processors_; } allocation_granularity()115 size_t allocation_granularity() const { return allocation_granularity_; } wow64_status()116 WOW64Status wow64_status() const { return wow64_status_; } 117 std::string processor_model_name(); 118 119 // Like wow64_status(), but for the supplied handle instead of the current 120 // process. This doesn't touch member state, so you can bypass the singleton. 121 static WOW64Status GetWOW64StatusForProcess(HANDLE process_handle); 122 123 private: 124 OSInfo(); 125 ~OSInfo(); 126 127 Version version_; 128 VersionNumber version_number_; 129 VersionType version_type_; 130 ServicePack service_pack_; 131 132 // A string, such as "Service Pack 3", that indicates the latest Service Pack 133 // installed on the system. If no Service Pack has been installed, the string 134 // is empty. 135 std::string service_pack_str_; 136 WindowsArchitecture architecture_; 137 int processors_; 138 size_t allocation_granularity_; 139 WOW64Status wow64_status_; 140 std::string processor_model_name_; 141 142 RTC_DISALLOW_COPY_AND_ASSIGN(OSInfo); 143 }; 144 145 // Because this is by far the most commonly-requested value from the above 146 // singleton, we add a global-scope accessor here as syntactic sugar. 147 Version GetVersion(); 148 149 } // namespace rtc_win 150 } // namespace rtc 151 152 #endif // RTC_BASE_WIN_WINDOWS_VERSION_H_ 153