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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
// Copyright (c) 2008 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 "base/logging.h"
#include "base/string_util.h"
#include "mozilla/UniquePtr.h"
namespace base {
// static
int SysInfo::NumberOfProcessors() {
SYSTEM_INFO info;
GetSystemInfo(&info);
return static_cast<int>(info.dwNumberOfProcessors);
}
// static
int64_t SysInfo::AmountOfPhysicalMemory() {
MEMORYSTATUSEX memory_info;
memory_info.dwLength = sizeof(memory_info);
if (!GlobalMemoryStatusEx(&memory_info)) {
NOTREACHED();
return 0;
}
int64_t rv = static_cast<int64_t>(memory_info.ullTotalPhys);
if (rv < 0)
rv = kint64max;
return rv;
}
// static
int64_t SysInfo::AmountOfFreeDiskSpace(const std::wstring& path) {
ULARGE_INTEGER available, total, free;
if (!GetDiskFreeSpaceExW(path.c_str(), &available, &total, &free)) {
return -1;
}
int64_t rv = static_cast<int64_t>(available.QuadPart);
if (rv < 0)
rv = kint64max;
return rv;
}
// static
bool SysInfo::HasEnvVar(const wchar_t* var) {
return GetEnvironmentVariable(var, NULL, 0) != 0;
}
// static
std::wstring SysInfo::GetEnvVar(const wchar_t* var) {
DWORD value_length = GetEnvironmentVariable(var, NULL, 0);
if (value_length == 0) {
return L"";
}
mozilla::UniquePtr<wchar_t[]> value(new wchar_t[value_length]);
GetEnvironmentVariable(var, value.get(), value_length);
return std::wstring(value.get());
}
// static
std::string SysInfo::OperatingSystemName() {
return "Windows NT";
}
// static
std::string SysInfo::CPUArchitecture() {
// TODO: Make this vary when we support any other architectures.
return "x86";
}
// static
void SysInfo::GetPrimaryDisplayDimensions(int* width, int* height) {
if (width)
*width = GetSystemMetrics(SM_CXSCREEN);
if (height)
*height = GetSystemMetrics(SM_CYSCREEN);
}
// static
int SysInfo::DisplayCount() {
return GetSystemMetrics(SM_CMONITORS);
}
// static
size_t SysInfo::VMAllocationGranularity() {
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
return sysinfo.dwAllocationGranularity;
}
} // namespace base
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