chrome/browser/extensions/api/system_cpu/cpu_info_provider_mac.cc - Issue 389633002: Move system.* family of APIs to extensions/

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Side by Side Diff: chrome/browser/extensions/api/system_cpu/cpu_info_provider_mac.cc

Issue 389633002: Move system.* family of APIs to extensions/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Inlined simple getters and removed redundant namespace decl Created 6 years, 3 months ago

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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

3 // found in the LICENSE file.

4

5 #include "chrome/browser/extensions/api/system_cpu/cpu_info_provider.h"

6

7 #include <mach/mach_host.h>

8

9 #include "base/mac/scoped_mach_port.h"

10 #include "base/sys_info.h"

11

12 namespace extensions {

13

14 bool CpuInfoProvider::QueryCpuTimePerProcessor(

15 std::vector<linked_ptr<api::system_cpu::ProcessorInfo> >* infos) {

16 DCHECK(infos);

17

18 natural_t num_of_processors;

19 base::mac::ScopedMachSendRight host(mach_host_self());

20 mach_msg_type_number_t type;

21 processor_cpu_load_info_data_t* cpu_infos;

22

23 if (host_processor_info(host.get(),

24 PROCESSOR_CPU_LOAD_INFO,

25 &num_of_processors,

26 reinterpret_cast<processor_info_array_t*>(&cpu_infos),

27 &type) == KERN_SUCCESS) {

28 DCHECK_EQ(num_of_processors,

29 static_cast<natural_t>(base::SysInfo::NumberOfProcessors()));

30 DCHECK_EQ(num_of_processors, static_cast<natural_t>(infos->size()));

31

32 for (natural_t i = 0; i < num_of_processors; ++i) {

33 double user = static_cast<double>(cpu_infos[i].cpu_ticks[CPU_STATE_USER]),

34 sys = static_cast<double>(cpu_infos[i].cpu_ticks[CPU_STATE_SYSTEM]),

35 nice = static_cast<double>(cpu_infos[i].cpu_ticks[CPU_STATE_NICE]),

36 idle = static_cast<double>(cpu_infos[i].cpu_ticks[CPU_STATE_IDLE]);

37

38 infos->at(i)->usage.kernel = sys;

39 infos->at(i)->usage.user = user + nice;

40 infos->at(i)->usage.idle = idle;

41 infos->at(i)->usage.total = sys + user + nice + idle;

42 }

43

44 vm_deallocate(mach_task_self(),

45 reinterpret_cast<vm_address_t>(cpu_infos),

46 num_of_processors * sizeof(processor_cpu_load_info));

47

48 return true;

49 }

50

51 return false;

52 }

53

54 } // namespace extensions

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