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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "extensions/browser/api/system_cpu/cpu_info_provider.h" | 5 #include "extensions/browser/api/system_cpu/cpu_info_provider.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 #include <winternl.h> | 8 #include <winternl.h> |
9 | 9 |
10 #include "base/sys_info.h" | 10 #include "base/sys_info.h" |
11 | 11 |
12 namespace extensions { | 12 namespace extensions { |
13 | 13 |
14 namespace { | 14 namespace { |
15 | 15 |
16 const wchar_t kNtdll[] = L"ntdll.dll"; | 16 const wchar_t kNtdll[] = L"ntdll.dll"; |
17 const char kNtQuerySystemInformationName[] = "NtQuerySystemInformation"; | 17 const char kNtQuerySystemInformationName[] = "NtQuerySystemInformation"; |
18 | 18 |
19 // See MSDN about NtQuerySystemInformation definition. | 19 // See MSDN about NtQuerySystemInformation definition. |
20 typedef DWORD(WINAPI* NtQuerySystemInformationPF)(DWORD system_info_class, | 20 typedef DWORD(WINAPI* NtQuerySystemInformationPF)(DWORD system_info_class, |
21 PVOID system_info, | 21 PVOID system_info, |
22 ULONG system_info_length, | 22 ULONG system_info_length, |
23 PULONG return_length); | 23 PULONG return_length); |
24 | 24 |
25 } // namespace | 25 } // namespace |
26 | 26 |
27 bool CpuInfoProvider::QueryCpuTimePerProcessor( | 27 bool CpuInfoProvider::QueryCpuTimePerProcessor( |
28 std::vector<linked_ptr<core_api::system_cpu::ProcessorInfo> >* infos) { | 28 std::vector<linked_ptr<api::system_cpu::ProcessorInfo>>* infos) { |
29 DCHECK(infos); | 29 DCHECK(infos); |
30 | 30 |
31 HMODULE ntdll = GetModuleHandle(kNtdll); | 31 HMODULE ntdll = GetModuleHandle(kNtdll); |
32 CHECK(ntdll != NULL); | 32 CHECK(ntdll != NULL); |
33 NtQuerySystemInformationPF NtQuerySystemInformation = | 33 NtQuerySystemInformationPF NtQuerySystemInformation = |
34 reinterpret_cast<NtQuerySystemInformationPF>( | 34 reinterpret_cast<NtQuerySystemInformationPF>( |
35 ::GetProcAddress(ntdll, kNtQuerySystemInformationName)); | 35 ::GetProcAddress(ntdll, kNtQuerySystemInformationName)); |
36 | 36 |
37 CHECK(NtQuerySystemInformation != NULL); | 37 CHECK(NtQuerySystemInformation != NULL); |
38 | 38 |
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67 infos->at(i)->usage.kernel = kernel - idle; | 67 infos->at(i)->usage.kernel = kernel - idle; |
68 infos->at(i)->usage.user = user; | 68 infos->at(i)->usage.user = user; |
69 infos->at(i)->usage.idle = idle; | 69 infos->at(i)->usage.idle = idle; |
70 infos->at(i)->usage.total = kernel + user; | 70 infos->at(i)->usage.total = kernel + user; |
71 } | 71 } |
72 | 72 |
73 return true; | 73 return true; |
74 } | 74 } |
75 | 75 |
76 } // namespace extensions | 76 } // namespace extensions |
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