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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/sys_info.h"
#include <windows.h>
#include <winioctl.h>
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/stringprintf.h"
#include "base/threading/thread_restrictions.h"
#include "base/win/windows_version.h"
namespace {
int64 AmountOfMemory(DWORDLONG MEMORYSTATUSEX::* memory_field) {
MEMORYSTATUSEX memory_info;
memory_info.dwLength = sizeof(memory_info);
if (!GlobalMemoryStatusEx(&memory_info)) {
NOTREACHED();
return 0;
}
int64 rv = static_cast<int64>(memory_info.*memory_field);
return rv < 0 ? kint64max : rv;
}
} // namespace
namespace base {
// static
int SysInfo::NumberOfProcessors() {
return win::OSInfo::GetInstance()->processors();
}
// static
int64 SysInfo::AmountOfPhysicalMemory() {
return AmountOfMemory(&MEMORYSTATUSEX::ullTotalPhys);
}
// static
int64 SysInfo::AmountOfAvailablePhysicalMemory() {
return AmountOfMemory(&MEMORYSTATUSEX::ullAvailPhys);
}
// static
int64 SysInfo::AmountOfVirtualMemory() {
return 0;
}
// static
int64 SysInfo::AmountOfFreeDiskSpace(const FilePath& path) {
ThreadRestrictions::AssertIOAllowed();
ULARGE_INTEGER available, total, free;
if (!GetDiskFreeSpaceExW(path.value().c_str(), &available, &total, &free))
return -1;
int64 rv = static_cast<int64>(available.QuadPart);
return rv < 0 ? kint64max : rv;
}
bool SysInfo::HasSeekPenalty(const FilePath& path, bool* has_seek_penalty) {
ThreadRestrictions::AssertIOAllowed();
DCHECK(path.IsAbsolute());
DCHECK(has_seek_penalty);
// TODO(dbeam): Vista, XP support.
if (win::GetVersion() < win::VERSION_WIN7)
return false;
std::vector<FilePath::StringType> components;
path.GetComponents(&components);
File drive(FilePath(L"\\\\.\\" + components[0]), File::FLAG_OPEN);
if (!drive.IsValid())
return false;
STORAGE_PROPERTY_QUERY query = {};
query.QueryType = PropertyStandardQuery;
query.PropertyId = StorageDeviceSeekPenaltyProperty;
DEVICE_SEEK_PENALTY_DESCRIPTOR result;
DWORD bytes_returned;
BOOL success = DeviceIoControl(drive.GetPlatformFile(),
IOCTL_STORAGE_QUERY_PROPERTY,
&query, sizeof(query),
&result, sizeof(result),
&bytes_returned,
NULL);
if (success == FALSE || bytes_returned < sizeof(result))
return false;
*has_seek_penalty = result.IncursSeekPenalty != FALSE;
return true;
}
// static
std::string SysInfo::OperatingSystemName() {
return "Windows NT";
}
// static
std::string SysInfo::OperatingSystemVersion() {
win::OSInfo* os_info = win::OSInfo::GetInstance();
win::OSInfo::VersionNumber version_number = os_info->version_number();
std::string version(StringPrintf("%d.%d", version_number.major,
version_number.minor));
win::OSInfo::ServicePack service_pack = os_info->service_pack();
if (service_pack.major != 0) {
version += StringPrintf(" SP%d", service_pack.major);
if (service_pack.minor != 0)
version += StringPrintf(".%d", service_pack.minor);
}
return version;
}
// TODO: Implement OperatingSystemVersionComplete, which would include
// patchlevel/service pack number.
// See chrome/browser/feedback/feedback_util.h, FeedbackUtil::SetOSVersion.
// static
std::string SysInfo::OperatingSystemArchitecture() {
win::OSInfo::WindowsArchitecture arch =
win::OSInfo::GetInstance()->architecture();
switch (arch) {
case win::OSInfo::X86_ARCHITECTURE:
return "x86";
case win::OSInfo::X64_ARCHITECTURE:
return "x86_64";
case win::OSInfo::IA64_ARCHITECTURE:
return "ia64";
default:
return "";
}
}
// static
std::string SysInfo::CPUModelName() {
return win::OSInfo::GetInstance()->processor_model_name();
}
// static
size_t SysInfo::VMAllocationGranularity() {
return win::OSInfo::GetInstance()->allocation_granularity();
}
// static
void SysInfo::OperatingSystemVersionNumbers(int32* major_version,
int32* minor_version,
int32* bugfix_version) {
win::OSInfo* os_info = win::OSInfo::GetInstance();
*major_version = os_info->version_number().major;
*minor_version = os_info->version_number().minor;
*bugfix_version = 0;
}
} // namespace base
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