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99 lines
2.2 KiB
C++
99 lines
2.2 KiB
C++
// Copyright (c) 2008 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/sys_info.h"
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#include <windows.h>
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#include "base/logging.h"
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#include "base/string_util.h"
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#include "mozilla/UniquePtr.h"
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namespace base {
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// static
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int SysInfo::NumberOfProcessors() {
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SYSTEM_INFO info;
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GetSystemInfo(&info);
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return static_cast<int>(info.dwNumberOfProcessors);
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}
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// static
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int64_t SysInfo::AmountOfPhysicalMemory() {
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MEMORYSTATUSEX memory_info;
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memory_info.dwLength = sizeof(memory_info);
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if (!GlobalMemoryStatusEx(&memory_info)) {
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NOTREACHED();
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return 0;
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}
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int64_t rv = static_cast<int64_t>(memory_info.ullTotalPhys);
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if (rv < 0)
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rv = kint64max;
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return rv;
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}
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// static
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int64_t SysInfo::AmountOfFreeDiskSpace(const std::wstring& path) {
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ULARGE_INTEGER available, total, free;
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if (!GetDiskFreeSpaceExW(path.c_str(), &available, &total, &free)) {
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return -1;
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}
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int64_t rv = static_cast<int64_t>(available.QuadPart);
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if (rv < 0)
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rv = kint64max;
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return rv;
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}
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// static
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bool SysInfo::HasEnvVar(const wchar_t* var) {
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return GetEnvironmentVariable(var, NULL, 0) != 0;
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}
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// static
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std::wstring SysInfo::GetEnvVar(const wchar_t* var) {
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DWORD value_length = GetEnvironmentVariable(var, NULL, 0);
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if (value_length == 0) {
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return L"";
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}
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mozilla::UniquePtr<wchar_t[]> value(new wchar_t[value_length]);
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GetEnvironmentVariable(var, value.get(), value_length);
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return std::wstring(value.get());
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}
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// static
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std::string SysInfo::OperatingSystemName() {
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return "Windows NT";
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}
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// static
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std::string SysInfo::CPUArchitecture() {
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// TODO: Make this vary when we support any other architectures.
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return "x86";
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}
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// static
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void SysInfo::GetPrimaryDisplayDimensions(int* width, int* height) {
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if (width)
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*width = GetSystemMetrics(SM_CXSCREEN);
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if (height)
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*height = GetSystemMetrics(SM_CYSCREEN);
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}
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// static
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int SysInfo::DisplayCount() {
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return GetSystemMetrics(SM_CMONITORS);
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}
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// static
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size_t SysInfo::VMAllocationGranularity() {
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SYSTEM_INFO sysinfo;
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GetSystemInfo(&sysinfo);
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return sysinfo.dwAllocationGranularity;
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}
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} // namespace base
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