1// Copyright (c) 2012 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 "base/sys_info.h"
6
7#include <windows.h>
8
9#include "base/files/file_path.h"
10#include "base/logging.h"
11#include "base/memory/scoped_ptr.h"
12#include "base/strings/stringprintf.h"
13#include "base/threading/thread_restrictions.h"
14#include "base/win/windows_version.h"
15
16namespace {
17
18int64 AmountOfMemory(DWORDLONG MEMORYSTATUSEX::* memory_field) {
19  MEMORYSTATUSEX memory_info;
20  memory_info.dwLength = sizeof(memory_info);
21  if (!GlobalMemoryStatusEx(&memory_info)) {
22    NOTREACHED();
23    return 0;
24  }
25
26  int64 rv = static_cast<int64>(memory_info.*memory_field);
27  if (rv < 0)
28    rv = kint64max;
29  return rv;
30}
31
32}  // namespace
33
34namespace base {
35
36// static
37int SysInfo::NumberOfProcessors() {
38  return win::OSInfo::GetInstance()->processors();
39}
40
41// static
42int64 SysInfo::AmountOfPhysicalMemory() {
43  return AmountOfMemory(&MEMORYSTATUSEX::ullTotalPhys);
44}
45
46// static
47int64 SysInfo::AmountOfAvailablePhysicalMemory() {
48  return AmountOfMemory(&MEMORYSTATUSEX::ullAvailPhys);
49}
50
51// static
52int64 SysInfo::AmountOfVirtualMemory() {
53  return 0;
54}
55
56// static
57int64 SysInfo::AmountOfFreeDiskSpace(const FilePath& path) {
58  base::ThreadRestrictions::AssertIOAllowed();
59
60  ULARGE_INTEGER available, total, free;
61  if (!GetDiskFreeSpaceExW(path.value().c_str(), &available, &total, &free)) {
62    return -1;
63  }
64  int64 rv = static_cast<int64>(available.QuadPart);
65  if (rv < 0)
66    rv = kint64max;
67  return rv;
68}
69
70// static
71std::string SysInfo::OperatingSystemName() {
72  return "Windows NT";
73}
74
75// static
76std::string SysInfo::OperatingSystemVersion() {
77  win::OSInfo* os_info = win::OSInfo::GetInstance();
78  win::OSInfo::VersionNumber version_number = os_info->version_number();
79  std::string version(StringPrintf("%d.%d", version_number.major,
80                                   version_number.minor));
81  win::OSInfo::ServicePack service_pack = os_info->service_pack();
82  if (service_pack.major != 0) {
83    version += StringPrintf(" SP%d", service_pack.major);
84    if (service_pack.minor != 0)
85      version += StringPrintf(".%d", service_pack.minor);
86  }
87  return version;
88}
89
90// TODO: Implement OperatingSystemVersionComplete, which would include
91// patchlevel/service pack number.
92// See chrome/browser/feedback/feedback_util.h, FeedbackUtil::SetOSVersion.
93
94// static
95std::string SysInfo::OperatingSystemArchitecture() {
96  win::OSInfo::WindowsArchitecture arch =
97      win::OSInfo::GetInstance()->architecture();
98  switch (arch) {
99    case win::OSInfo::X86_ARCHITECTURE:
100      return "x86";
101    case win::OSInfo::X64_ARCHITECTURE:
102      return "x86_64";
103    case win::OSInfo::IA64_ARCHITECTURE:
104      return "ia64";
105    default:
106      return "";
107  }
108}
109
110// static
111std::string SysInfo::CPUModelName() {
112  return win::OSInfo::GetInstance()->processor_model_name();
113}
114
115// static
116size_t SysInfo::VMAllocationGranularity() {
117  return win::OSInfo::GetInstance()->allocation_granularity();
118}
119
120// static
121void SysInfo::OperatingSystemVersionNumbers(int32* major_version,
122                                            int32* minor_version,
123                                            int32* bugfix_version) {
124  win::OSInfo* os_info = win::OSInfo::GetInstance();
125  *major_version = os_info->version_number().major;
126  *minor_version = os_info->version_number().minor;
127  *bugfix_version = 0;
128}
129
130}  // namespace base
131