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 // On edit, update tools\metrics\histograms\enums.xml "WindowsVersion" and 47 // "GpuBlacklistFeatureTestResultsWindows2". 48 VERSION_WIN_LAST, // Indicates error condition. 49 }; 50 51 // A rough bucketing of the available types of versions of Windows. This is used 52 // to distinguish enterprise enabled versions from home versions and potentially 53 // server versions. Keep these values in the same order, since they are used as 54 // is for metrics histogram ids. 55 enum VersionType { 56 SUITE_HOME = 0, 57 SUITE_PROFESSIONAL, 58 SUITE_SERVER, 59 SUITE_ENTERPRISE, 60 SUITE_EDUCATION, 61 SUITE_LAST, 62 }; 63 64 // A singleton that can be used to query various pieces of information about the 65 // OS and process state. Note that this doesn't use the base Singleton class, so 66 // it can be used without an AtExitManager. 67 class OSInfo { 68 public: 69 struct VersionNumber { 70 int major; 71 int minor; 72 int build; 73 int patch; 74 }; 75 76 struct ServicePack { 77 int major; 78 int minor; 79 }; 80 81 // The processor architecture this copy of Windows natively uses. For 82 // example, given an x64-capable processor, we have three possibilities: 83 // 32-bit Chrome running on 32-bit Windows: X86_ARCHITECTURE 84 // 32-bit Chrome running on 64-bit Windows via WOW64: X64_ARCHITECTURE 85 // 64-bit Chrome running on 64-bit Windows: X64_ARCHITECTURE 86 enum WindowsArchitecture { 87 X86_ARCHITECTURE, 88 X64_ARCHITECTURE, 89 IA64_ARCHITECTURE, 90 OTHER_ARCHITECTURE, 91 }; 92 93 // Whether a process is running under WOW64 (the wrapper that allows 32-bit 94 // processes to run on 64-bit versions of Windows). This will return 95 // WOW64_DISABLED for both "32-bit Chrome on 32-bit Windows" and "64-bit 96 // Chrome on 64-bit Windows". WOW64_UNKNOWN means "an error occurred", e.g. 97 // the process does not have sufficient access rights to determine this. 98 enum WOW64Status { 99 WOW64_DISABLED, 100 WOW64_ENABLED, 101 WOW64_UNKNOWN, 102 }; 103 104 static OSInfo* GetInstance(); 105 version()106 Version version() const { return version_; } version_number()107 VersionNumber version_number() const { return version_number_; } version_type()108 VersionType version_type() const { return version_type_; } service_pack()109 ServicePack service_pack() const { return service_pack_; } service_pack_str()110 std::string service_pack_str() const { return service_pack_str_; } architecture()111 WindowsArchitecture architecture() const { return architecture_; } processors()112 int processors() const { return processors_; } allocation_granularity()113 size_t allocation_granularity() const { return allocation_granularity_; } wow64_status()114 WOW64Status wow64_status() const { return wow64_status_; } 115 std::string processor_model_name(); 116 117 // Like wow64_status(), but for the supplied handle instead of the current 118 // process. This doesn't touch member state, so you can bypass the singleton. 119 static WOW64Status GetWOW64StatusForProcess(HANDLE process_handle); 120 121 private: 122 OSInfo(); 123 ~OSInfo(); 124 125 Version version_; 126 VersionNumber version_number_; 127 VersionType version_type_; 128 ServicePack service_pack_; 129 130 // A string, such as "Service Pack 3", that indicates the latest Service Pack 131 // installed on the system. If no Service Pack has been installed, the string 132 // is empty. 133 std::string service_pack_str_; 134 WindowsArchitecture architecture_; 135 int processors_; 136 size_t allocation_granularity_; 137 WOW64Status wow64_status_; 138 std::string processor_model_name_; 139 140 RTC_DISALLOW_COPY_AND_ASSIGN(OSInfo); 141 }; 142 143 // Because this is by far the most commonly-requested value from the above 144 // singleton, we add a global-scope accessor here as syntactic sugar. 145 Version GetVersion(); 146 147 } // namespace rtc_win 148 } // namespace rtc 149 150 #endif // RTC_BASE_WIN_WINDOWS_VERSION_H_ 151