base/sys_info_win.cc

   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
  16 namespace {
  17
  18 int64 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
  34 namespace base {
  35
  36 // static
  37 int SysInfo::NumberOfProcessors() {
  38   return win::OSInfo::GetInstance()->processors();
  39 }
  40
  41 // static
  42 int64 SysInfo::AmountOfPhysicalMemory() {
  43   return AmountOfMemory(&MEMORYSTATUSEX::ullTotalPhys);
  44 }
  45
  46 // static
  47 int64 SysInfo::AmountOfAvailablePhysicalMemory() {
  48   return AmountOfMemory(&MEMORYSTATUSEX::ullAvailPhys);
  49 }
  50
  51 // static
  52 int64 SysInfo::AmountOfVirtualMemory() {
  53   return 0;
  54 }
  55
  56 // static
  57 int64 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
  71 std::string SysInfo::OperatingSystemName() {
  72   return "Windows NT";
  73 }
  74
  75 // static
  76 std::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
  95 std::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
 111 std::string SysInfo::CPUModelName() {
 112   return win::OSInfo::GetInstance()->processor_model_name();
 113 }
 114
 115 // static
 116 size_t SysInfo::VMAllocationGranularity() {
 117   return win::OSInfo::GetInstance()->allocation_granularity();
 118 }
 119
 120 // static
 121 void 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