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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/win/windows_version.h" | 5 #include "base/win/windows_version.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 | 10 |
11 namespace base { | 11 namespace base { |
12 namespace win { | 12 namespace win { |
13 | 13 |
14 Version GetVersion() { | 14 // static |
15 static bool checked_version = false; | 15 OSInfo* OSInfo::GetInstance() { |
16 static Version win_version = VERSION_PRE_2000; | 16 return Singleton<OSInfo>::get(); |
17 if (!checked_version) { | |
18 OSVERSIONINFOEX version_info; | |
19 version_info.dwOSVersionInfoSize = sizeof version_info; | |
20 GetVersionEx(reinterpret_cast<OSVERSIONINFO*>(&version_info)); | |
21 if (version_info.dwMajorVersion == 5) { | |
22 switch (version_info.dwMinorVersion) { | |
23 case 0: | |
24 win_version = VERSION_2000; | |
25 break; | |
26 case 1: | |
27 win_version = VERSION_XP; | |
28 break; | |
29 case 2: | |
30 default: | |
31 win_version = VERSION_SERVER_2003; | |
32 break; | |
33 } | |
34 } else if (version_info.dwMajorVersion == 6) { | |
35 if (version_info.wProductType != VER_NT_WORKSTATION) { | |
36 // 2008 is 6.0, and 2008 R2 is 6.1. | |
37 win_version = VERSION_2008; | |
38 } else { | |
39 if (version_info.dwMinorVersion == 0) { | |
40 win_version = VERSION_VISTA; | |
41 } else { | |
42 win_version = VERSION_WIN7; | |
43 } | |
44 } | |
45 } else if (version_info.dwMajorVersion > 6) { | |
46 win_version = VERSION_WIN7; | |
47 } | |
48 checked_version = true; | |
49 } | |
50 return win_version; | |
51 } | 17 } |
52 | 18 |
53 void GetServicePackLevel(int* major, int* minor) { | 19 OSInfo::OSInfo() |
54 DCHECK(major && minor); | 20 : version_(VERSION_PRE_XP), |
55 static bool checked_version = false; | 21 architecture_(OTHER_ARCHITECTURE), |
56 static int service_pack_major = -1; | 22 wow64_status_(GetWOW64StatusForProcess(GetCurrentProcess())) { |
57 static int service_pack_minor = -1; | 23 OSVERSIONINFOEX version_info = { sizeof version_info }; |
58 if (!checked_version) { | 24 GetVersionEx(reinterpret_cast<OSVERSIONINFO*>(&version_info)); |
59 OSVERSIONINFOEX version_info = {0}; | 25 version_number_.major = version_info.dwMajorVersion; |
60 version_info.dwOSVersionInfoSize = sizeof(version_info); | 26 version_number_.minor = version_info.dwMinorVersion; |
61 GetVersionEx(reinterpret_cast<OSVERSIONINFOW*>(&version_info)); | 27 version_number_.build = version_info.dwBuildNumber; |
62 service_pack_major = version_info.wServicePackMajor; | 28 if ((version_number_.major == 5) && (version_number_.minor > 0)) { |
63 service_pack_minor = version_info.wServicePackMinor; | 29 version_ = (version_number_.minor == 1) ? VERSION_XP : VERSION_SERVER_2003; |
64 checked_version = true; | 30 } else if (version_number_.major == 6) { |
| 31 if (version_info.wProductType == VER_NT_WORKSTATION) |
| 32 version_ = (version_number_.minor == 0) ? VERSION_VISTA : VERSION_WIN7; |
| 33 else |
| 34 version_ = VERSION_SERVER_2008; |
| 35 } else if (version_number_.major > 6) { |
| 36 version_ = VERSION_WIN7; |
65 } | 37 } |
| 38 service_pack_.major = version_info.wServicePackMajor; |
| 39 service_pack_.minor = version_info.wServicePackMinor; |
66 | 40 |
67 *major = service_pack_major; | 41 SYSTEM_INFO system_info = { 0 }; |
68 *minor = service_pack_minor; | 42 GetNativeSystemInfo(&system_info); |
| 43 switch (system_info.wProcessorArchitecture) { |
| 44 case PROCESSOR_ARCHITECTURE_INTEL: architecture_ = X86_ARCHITECTURE; break; |
| 45 case PROCESSOR_ARCHITECTURE_AMD64: architecture_ = X64_ARCHITECTURE; break; |
| 46 case PROCESSOR_ARCHITECTURE_IA64: architecture_ = IA64_ARCHITECTURE; break; |
| 47 } |
| 48 processors_ = system_info.dwNumberOfProcessors; |
| 49 allocation_granularity_ = system_info.dwAllocationGranularity; |
69 } | 50 } |
70 | 51 |
71 WindowsArchitecture GetWindowsArchitecture() { | 52 OSInfo::~OSInfo() { |
72 SYSTEM_INFO system_info; | |
73 GetNativeSystemInfo(&system_info); | |
74 switch (system_info.wProcessorArchitecture) { | |
75 case PROCESSOR_ARCHITECTURE_INTEL: return X86_ARCHITECTURE; | |
76 case PROCESSOR_ARCHITECTURE_AMD64: return X64_ARCHITECTURE; | |
77 case PROCESSOR_ARCHITECTURE_IA64: return IA64_ARCHITECTURE; | |
78 default: return OTHER_ARCHITECTURE; | |
79 } | |
80 } | 53 } |
81 | 54 |
82 WOW64Status GetWOW64Status() { | 55 // static |
83 static WOW64Status wow64_status = | 56 OSInfo::WOW64Status OSInfo::GetWOW64StatusForProcess(HANDLE process_handle) { |
84 GetWOW64StatusForProcess(GetCurrentProcess()); | |
85 return wow64_status; | |
86 } | |
87 | |
88 WOW64Status GetWOW64StatusForProcess(HANDLE process_handle) { | |
89 typedef BOOL (WINAPI* IsWow64ProcessFunc)(HANDLE, PBOOL); | 57 typedef BOOL (WINAPI* IsWow64ProcessFunc)(HANDLE, PBOOL); |
90 IsWow64ProcessFunc is_wow64_process = reinterpret_cast<IsWow64ProcessFunc>( | 58 IsWow64ProcessFunc is_wow64_process = reinterpret_cast<IsWow64ProcessFunc>( |
91 GetProcAddress(GetModuleHandle(L"kernel32.dll"), "IsWow64Process")); | 59 GetProcAddress(GetModuleHandle(L"kernel32.dll"), "IsWow64Process")); |
92 if (!is_wow64_process) | 60 if (!is_wow64_process) |
93 return WOW64_DISABLED; | 61 return WOW64_DISABLED; |
94 BOOL is_wow64 = FALSE; | 62 BOOL is_wow64 = FALSE; |
95 if (!(*is_wow64_process)(process_handle, &is_wow64)) | 63 if (!(*is_wow64_process)(process_handle, &is_wow64)) |
96 return WOW64_UNKNOWN; | 64 return WOW64_UNKNOWN; |
97 return is_wow64 ? WOW64_ENABLED : WOW64_DISABLED; | 65 return is_wow64 ? WOW64_ENABLED : WOW64_DISABLED; |
98 } | 66 } |
99 | 67 |
| 68 Version GetVersion() { |
| 69 return OSInfo::GetInstance()->version(); |
| 70 } |
| 71 |
100 } // namespace win | 72 } // namespace win |
101 } // namespace base | 73 } // namespace base |
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