michael@0: // Copyright (c) 2008 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #include "base/sys_info.h"
michael@0: 
michael@0: #include <windows.h>
michael@0: 
michael@0: #include "base/logging.h"
michael@0: #include "base/scoped_ptr.h"
michael@0: #include "base/string_util.h"
michael@0: 
michael@0: namespace base {
michael@0: 
michael@0: // static
michael@0: int SysInfo::NumberOfProcessors() {
michael@0:   SYSTEM_INFO info;
michael@0:   GetSystemInfo(&info);
michael@0:   return static_cast<int>(info.dwNumberOfProcessors);
michael@0: }
michael@0: 
michael@0: // static
michael@0: int64_t SysInfo::AmountOfPhysicalMemory() {
michael@0:   MEMORYSTATUSEX memory_info;
michael@0:   memory_info.dwLength = sizeof(memory_info);
michael@0:   if (!GlobalMemoryStatusEx(&memory_info)) {
michael@0:     NOTREACHED();
michael@0:     return 0;
michael@0:   }
michael@0: 
michael@0:   int64_t rv = static_cast<int64_t>(memory_info.ullTotalPhys);
michael@0:   if (rv < 0)
michael@0:     rv = kint64max;
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: // static
michael@0: int64_t SysInfo::AmountOfFreeDiskSpace(const std::wstring& path) {
michael@0:   ULARGE_INTEGER available, total, free;
michael@0:   if (!GetDiskFreeSpaceExW(path.c_str(), &available, &total, &free)) {
michael@0:     return -1;
michael@0:   }
michael@0:   int64_t rv = static_cast<int64_t>(available.QuadPart);
michael@0:   if (rv < 0)
michael@0:     rv = kint64max;
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: // static
michael@0: bool SysInfo::HasEnvVar(const wchar_t* var) {
michael@0:   return GetEnvironmentVariable(var, NULL, 0) != 0;
michael@0: }
michael@0: 
michael@0: // static
michael@0: std::wstring SysInfo::GetEnvVar(const wchar_t* var) {
michael@0:   DWORD value_length = GetEnvironmentVariable(var, NULL, 0);
michael@0:   if (value_length == 0) {
michael@0:     return L"";
michael@0:   }
michael@0:   scoped_array<wchar_t> value(new wchar_t[value_length]);
michael@0:   GetEnvironmentVariable(var, value.get(), value_length);
michael@0:   return std::wstring(value.get());
michael@0: }
michael@0: 
michael@0: // static
michael@0: std::string SysInfo::OperatingSystemName() {
michael@0:   return "Windows NT";
michael@0: }
michael@0: 
michael@0: // static
michael@0: std::string SysInfo::OperatingSystemVersion() {
michael@0:   OSVERSIONINFO info = {0};
michael@0:   info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
michael@0:   GetVersionEx(&info);
michael@0: 
michael@0:   return StringPrintf("%lu.%lu", info.dwMajorVersion, info.dwMinorVersion);
michael@0: }
michael@0: 
michael@0: // TODO: Implement OperatingSystemVersionComplete, which would include
michael@0: // patchlevel/service pack number. See chrome/browser/views/bug_report_view.cc,
michael@0: // BugReportView::SetOSVersion.
michael@0: 
michael@0: // static
michael@0: std::string SysInfo::CPUArchitecture() {
michael@0:   // TODO: Make this vary when we support any other architectures.
michael@0:   return "x86";
michael@0: }
michael@0: 
michael@0: // static
michael@0: void SysInfo::GetPrimaryDisplayDimensions(int* width, int* height) {
michael@0:   if (width)
michael@0:     *width = GetSystemMetrics(SM_CXSCREEN);
michael@0: 
michael@0:   if (height)
michael@0:     *height = GetSystemMetrics(SM_CYSCREEN);
michael@0: }
michael@0: 
michael@0: // static
michael@0: int SysInfo::DisplayCount() {
michael@0:   return GetSystemMetrics(SM_CMONITORS);
michael@0: }
michael@0: 
michael@0: // static
michael@0: size_t SysInfo::VMAllocationGranularity() {
michael@0:   SYSTEM_INFO sysinfo;
michael@0:   GetSystemInfo(&sysinfo);
michael@0: 
michael@0:   return sysinfo.dwAllocationGranularity;
michael@0: }
michael@0: 
michael@0: // static
michael@0: void SysInfo::OperatingSystemVersionNumbers(int32_t *major_version,
michael@0:                                             int32_t *minor_version,
michael@0:                                             int32_t *bugfix_version) {
michael@0:   OSVERSIONINFO info = {0};
michael@0:   info.dwOSVersionInfoSize = sizeof(info);
michael@0:   GetVersionEx(&info);
michael@0:   *major_version = info.dwMajorVersion;
michael@0:   *minor_version = info.dwMinorVersion;
michael@0:   *bugfix_version = 0;
michael@0: }
michael@0: 
michael@0: }  // namespace base