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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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/process/process_metrics.h" | 5 #include "base/process/process_metrics.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 #include <psapi.h> | 8 #include <psapi.h> |
9 #include <stddef.h> | 9 #include <stddef.h> |
10 #include <stdint.h> | 10 #include <stdint.h> |
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24 const int PAGESIZE_KB = 4; | 24 const int PAGESIZE_KB = 4; |
25 | 25 |
26 typedef NTSTATUS(WINAPI* NTQUERYSYSTEMINFORMATION)( | 26 typedef NTSTATUS(WINAPI* NTQUERYSYSTEMINFORMATION)( |
27 SYSTEM_INFORMATION_CLASS SystemInformationClass, | 27 SYSTEM_INFORMATION_CLASS SystemInformationClass, |
28 PVOID SystemInformation, | 28 PVOID SystemInformation, |
29 ULONG SystemInformationLength, | 29 ULONG SystemInformationLength, |
30 PULONG ReturnLength); | 30 PULONG ReturnLength); |
31 | 31 |
32 } // namespace | 32 } // namespace |
33 | 33 |
34 SystemMemoryInfoKB::SystemMemoryInfoKB() | |
35 : total(0), free(0), swap_total(0), swap_free(0) {} | |
36 | |
37 SystemMemoryInfoKB::SystemMemoryInfoKB(const SystemMemoryInfoKB& other) = | |
38 default; | |
39 | |
40 ProcessMetrics::~ProcessMetrics() { } | 34 ProcessMetrics::~ProcessMetrics() { } |
41 | 35 |
42 // static | 36 // static |
43 std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateProcessMetrics( | 37 std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateProcessMetrics( |
44 ProcessHandle process) { | 38 ProcessHandle process) { |
45 return WrapUnique(new ProcessMetrics(process)); | 39 return WrapUnique(new ProcessMetrics(process)); |
46 } | 40 } |
47 | 41 |
48 size_t ProcessMetrics::GetPagefileUsage() const { | 42 size_t ProcessMetrics::GetPagefileUsage() const { |
49 PROCESS_MEMORY_COUNTERS pmc; | 43 PROCESS_MEMORY_COUNTERS pmc; |
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342 return (info.CommitTotal * system_info.dwPageSize) / 1024; | 336 return (info.CommitTotal * system_info.dwPageSize) / 1024; |
343 } | 337 } |
344 | 338 |
345 size_t GetPageSize() { | 339 size_t GetPageSize() { |
346 return PAGESIZE_KB * 1024; | 340 return PAGESIZE_KB * 1024; |
347 } | 341 } |
348 | 342 |
349 // This function uses the following mapping between MEMORYSTATUSEX and | 343 // This function uses the following mapping between MEMORYSTATUSEX and |
350 // SystemMemoryInfoKB: | 344 // SystemMemoryInfoKB: |
351 // ullTotalPhys ==> total | 345 // ullTotalPhys ==> total |
352 // ullAvailPhys ==> free | 346 // ullAvailPhys ==> avail_phys |
353 // ullTotalPageFile ==> swap_total | 347 // ullTotalPageFile ==> swap_total |
354 // ullAvailPageFile ==> swap_free | 348 // ullAvailPageFile ==> swap_free |
355 bool GetSystemMemoryInfo(SystemMemoryInfoKB* meminfo) { | 349 bool GetSystemMemoryInfo(SystemMemoryInfoKB* meminfo) { |
356 MEMORYSTATUSEX mem_status; | 350 MEMORYSTATUSEX mem_status; |
357 mem_status.dwLength = sizeof(mem_status); | 351 mem_status.dwLength = sizeof(mem_status); |
358 if (!::GlobalMemoryStatusEx(&mem_status)) | 352 if (!::GlobalMemoryStatusEx(&mem_status)) |
359 return false; | 353 return false; |
360 | 354 |
361 meminfo->total = mem_status.ullTotalPhys / 1024; | 355 meminfo->total = mem_status.ullTotalPhys / 1024; |
362 meminfo->free = mem_status.ullAvailPhys / 1024; | 356 meminfo->avail_phys = mem_status.ullAvailPhys / 1024; |
363 meminfo->swap_total = mem_status.ullTotalPageFile / 1024; | 357 meminfo->swap_total = mem_status.ullTotalPageFile / 1024; |
364 meminfo->swap_free = mem_status.ullAvailPageFile / 1024; | 358 meminfo->swap_free = mem_status.ullAvailPageFile / 1024; |
365 | 359 |
366 return true; | 360 return true; |
367 } | 361 } |
368 | 362 |
369 } // namespace base | 363 } // namespace base |
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