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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 |
| (...skipping 28 matching lines...) Expand all Loading... |
| 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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