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gecko/xpcom/base/nsSystemInfo.cpp
Birunthan Mohanathas 47ed3a3675 Bug 1182996 - Fix and add missing namespace comments. rs=ehsan 
The bulk of this commit was generated by running:

  run-clang-tidy.py \
    -checks='-*,llvm-namespace-comment' \
    -header-filter=^/.../mozilla-central/.* \
    -fix
2015-07-13 08:25:42 -07:00

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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: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/ArrayUtils.h"
#include "nsSystemInfo.h"
#include "prsystem.h"
#include "prio.h"
#include "prprf.h"
#include "mozilla/SSE.h"
#include "mozilla/arm.h"
#ifdef XP_WIN
#include <time.h>
#include <windows.h>
#include <winioctl.h>
#include "base/scoped_handle_win.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsDirectoryServiceDefs.h"
#include "nsDirectoryServiceUtils.h"
#include "nsIObserverService.h"
#include "nsWindowsHelpers.h"
#endif
#ifdef MOZ_WIDGET_GTK
#include <gtk/gtk.h>
#endif
#ifdef MOZ_WIDGET_ANDROID
#include "AndroidBridge.h"
#endif
#ifdef MOZ_WIDGET_GONK
#include <sys/system_properties.h>
#include "mozilla/Preferences.h"
#include "nsPrintfCString.h"
#endif
#ifdef ANDROID
extern "C" {
NS_EXPORT int android_sdk_version;
}
#endif
#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
#include "mozilla/SandboxInfo.h"
#endif
// Slot for NS_InitXPCOM2 to pass information to nsSystemInfo::Init.
// Only set to nonzero (potentially) if XP_UNIX. On such systems, the
// system call to discover the appropriate value is not thread-safe,
// so we must call it before going multithreaded, but nsSystemInfo::Init
// only happens well after that point.
uint32_t nsSystemInfo::gUserUmask = 0;
#if defined(XP_WIN)
namespace {
nsresult
GetHDDInfo(const char* aSpecialDirName, nsAutoCString& aModel,
nsAutoCString& aRevision)
{
aModel.Truncate();
aRevision.Truncate();
nsCOMPtr<nsIFile> profDir;
nsresult rv = NS_GetSpecialDirectory(aSpecialDirName,
getter_AddRefs(profDir));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString profDirPath;
rv = profDir->GetPath(profDirPath);
NS_ENSURE_SUCCESS(rv, rv);
wchar_t volumeMountPoint[MAX_PATH] = {L'\\', L'\\', L'.', L'\\'};
const size_t PREFIX_LEN = 4;
if (!::GetVolumePathNameW(profDirPath.get(), volumeMountPoint + PREFIX_LEN,
mozilla::ArrayLength(volumeMountPoint) -
PREFIX_LEN)) {
return NS_ERROR_UNEXPECTED;
}
size_t volumeMountPointLen = wcslen(volumeMountPoint);
// Since we would like to open a drive and not a directory, we need to
// remove any trailing backslash. A drive handle is valid for
// DeviceIoControl calls, a directory handle is not.
if (volumeMountPoint[volumeMountPointLen - 1] == L'\\') {
volumeMountPoint[volumeMountPointLen - 1] = L'\0';
}
ScopedHandle handle(::CreateFileW(volumeMountPoint, 0,
FILE_SHARE_READ | FILE_SHARE_WRITE,
nullptr, OPEN_EXISTING, 0, nullptr));
if (!handle.IsValid()) {
return NS_ERROR_UNEXPECTED;
}
STORAGE_PROPERTY_QUERY queryParameters = {
StorageDeviceProperty, PropertyStandardQuery
};
STORAGE_DEVICE_DESCRIPTOR outputHeader = {sizeof(STORAGE_DEVICE_DESCRIPTOR)};
DWORD bytesRead = 0;
if (!::DeviceIoControl(handle, IOCTL_STORAGE_QUERY_PROPERTY,
&queryParameters, sizeof(queryParameters),
&outputHeader, sizeof(outputHeader), &bytesRead,
nullptr)) {
return NS_ERROR_FAILURE;
}
PSTORAGE_DEVICE_DESCRIPTOR deviceOutput =
(PSTORAGE_DEVICE_DESCRIPTOR)malloc(outputHeader.Size);
if (!::DeviceIoControl(handle, IOCTL_STORAGE_QUERY_PROPERTY,
&queryParameters, sizeof(queryParameters),
deviceOutput, outputHeader.Size, &bytesRead,
nullptr)) {
free(deviceOutput);
return NS_ERROR_FAILURE;
}
// Some HDDs are including product ID info in the vendor field. Since PNP
// IDs include vendor info and product ID concatenated together, we'll do
// that here and interpret the result as a unique ID for the HDD model.
if (deviceOutput->VendorIdOffset) {
aModel = reinterpret_cast<char*>(deviceOutput) +
deviceOutput->VendorIdOffset;
}
if (deviceOutput->ProductIdOffset) {
aModel += reinterpret_cast<char*>(deviceOutput) +
deviceOutput->ProductIdOffset;
}
aModel.CompressWhitespace();
if (deviceOutput->ProductRevisionOffset) {
aRevision = reinterpret_cast<char*>(deviceOutput) +
deviceOutput->ProductRevisionOffset;
aRevision.CompressWhitespace();
}
free(deviceOutput);
return NS_OK;
}
nsresult GetInstallYear(uint32_t& aYear)
{
HKEY hKey;
LONG status = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
NS_LITERAL_STRING(
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion"
).get(),
0, KEY_READ | KEY_WOW64_64KEY, &hKey);
if (status != ERROR_SUCCESS) {
return NS_ERROR_UNEXPECTED;
}
nsAutoRegKey key(hKey);
DWORD type = 0;
time_t raw_time = 0;
DWORD time_size = sizeof(time_t);
status = RegQueryValueExW(hKey, NS_LITERAL_STRING("InstallDate").get(),
nullptr, &type, (LPBYTE)&raw_time, &time_size);
if (status != ERROR_SUCCESS) {
return NS_ERROR_UNEXPECTED;
}
if (type != REG_DWORD) {
return NS_ERROR_UNEXPECTED;
}
tm time;
if (localtime_s(&time, &raw_time) != 0) {
return NS_ERROR_UNEXPECTED;
}
aYear = 1900UL + time.tm_year;
return NS_OK;
}
} // namespace
#endif // defined(XP_WIN)
using namespace mozilla;
nsSystemInfo::nsSystemInfo()
{
}
nsSystemInfo::~nsSystemInfo()
{
}
// CPU-specific information.
static const struct PropItems
{
const char* name;
bool (*propfun)(void);
} cpuPropItems[] = {
// x86-specific bits.
{ "hasMMX", mozilla::supports_mmx },
{ "hasSSE", mozilla::supports_sse },
{ "hasSSE2", mozilla::supports_sse2 },
{ "hasSSE3", mozilla::supports_sse3 },
{ "hasSSSE3", mozilla::supports_ssse3 },
{ "hasSSE4A", mozilla::supports_sse4a },
{ "hasSSE4_1", mozilla::supports_sse4_1 },
{ "hasSSE4_2", mozilla::supports_sse4_2 },
// ARM-specific bits.
{ "hasEDSP", mozilla::supports_edsp },
{ "hasARMv6", mozilla::supports_armv6 },
{ "hasARMv7", mozilla::supports_armv7 },
{ "hasNEON", mozilla::supports_neon }
};
nsresult
nsSystemInfo::Init()
{
nsresult rv;
static const struct
{
PRSysInfo cmd;
const char* name;
} items[] = {
{ PR_SI_SYSNAME, "name" },
{ PR_SI_HOSTNAME, "host" },
{ PR_SI_ARCHITECTURE, "arch" },
{ PR_SI_RELEASE, "version" }
};
for (uint32_t i = 0; i < (sizeof(items) / sizeof(items[0])); i++) {
char buf[SYS_INFO_BUFFER_LENGTH];
if (PR_GetSystemInfo(items[i].cmd, buf, sizeof(buf)) == PR_SUCCESS) {
rv = SetPropertyAsACString(NS_ConvertASCIItoUTF16(items[i].name),
nsDependentCString(buf));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
NS_WARNING("PR_GetSystemInfo failed");
}
}
rv = SetPropertyAsBool(NS_ConvertASCIItoUTF16("hasWindowsTouchInterface"),
false);
NS_ENSURE_SUCCESS(rv, rv);
// Additional informations not available through PR_GetSystemInfo.
SetInt32Property(NS_LITERAL_STRING("pagesize"), PR_GetPageSize());
SetInt32Property(NS_LITERAL_STRING("pageshift"), PR_GetPageShift());
SetInt32Property(NS_LITERAL_STRING("memmapalign"), PR_GetMemMapAlignment());
SetInt32Property(NS_LITERAL_STRING("cpucount"), PR_GetNumberOfProcessors());
SetUint64Property(NS_LITERAL_STRING("memsize"), PR_GetPhysicalMemorySize());
SetUint32Property(NS_LITERAL_STRING("umask"), nsSystemInfo::gUserUmask);
for (uint32_t i = 0; i < ArrayLength(cpuPropItems); i++) {
rv = SetPropertyAsBool(NS_ConvertASCIItoUTF16(cpuPropItems[i].name),
cpuPropItems[i].propfun());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
#ifdef XP_WIN
BOOL isWow64;
BOOL gotWow64Value = IsWow64Process(GetCurrentProcess(), &isWow64);
NS_WARN_IF_FALSE(gotWow64Value, "IsWow64Process failed");
if (gotWow64Value) {
rv = SetPropertyAsBool(NS_LITERAL_STRING("isWow64"), !!isWow64);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
if (NS_FAILED(GetProfileHDDInfo())) {
// We might have been called before profile-do-change. We'll observe that
// event so that we can fill this in later.
nsCOMPtr<nsIObserverService> obsService =
do_GetService(NS_OBSERVERSERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = obsService->AddObserver(this, "profile-do-change", false);
if (NS_FAILED(rv)) {
return rv;
}
}
nsAutoCString hddModel, hddRevision;
if (NS_SUCCEEDED(GetHDDInfo(NS_GRE_DIR, hddModel, hddRevision))) {
rv = SetPropertyAsACString(NS_LITERAL_STRING("binHDDModel"), hddModel);
NS_ENSURE_SUCCESS(rv, rv);
rv = SetPropertyAsACString(NS_LITERAL_STRING("binHDDRevision"),
hddRevision);
NS_ENSURE_SUCCESS(rv, rv);
}
if (NS_SUCCEEDED(GetHDDInfo(NS_WIN_WINDOWS_DIR, hddModel, hddRevision))) {
rv = SetPropertyAsACString(NS_LITERAL_STRING("winHDDModel"), hddModel);
NS_ENSURE_SUCCESS(rv, rv);
rv = SetPropertyAsACString(NS_LITERAL_STRING("winHDDRevision"),
hddRevision);
NS_ENSURE_SUCCESS(rv, rv);
}
uint32_t installYear = 0;
if (NS_SUCCEEDED(GetInstallYear(installYear))) {
rv = SetPropertyAsUint32(NS_LITERAL_STRING("installYear"), installYear);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
#endif
#if defined(MOZ_WIDGET_GTK)
// This must be done here because NSPR can only separate OS's when compiled, not libraries.
char* gtkver = PR_smprintf("GTK %u.%u.%u", gtk_major_version,
gtk_minor_version, gtk_micro_version);
if (gtkver) {
rv = SetPropertyAsACString(NS_LITERAL_STRING("secondaryLibrary"),
nsDependentCString(gtkver));
PR_smprintf_free(gtkver);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
#endif
#ifdef MOZ_WIDGET_ANDROID
if (mozilla::AndroidBridge::Bridge()) {
nsAutoString str;
if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
"android/os/Build", "MODEL", str)) {
SetPropertyAsAString(NS_LITERAL_STRING("device"), str);
}
if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
"android/os/Build", "MANUFACTURER", str)) {
SetPropertyAsAString(NS_LITERAL_STRING("manufacturer"), str);
}
if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
"android/os/Build$VERSION", "RELEASE", str)) {
SetPropertyAsAString(NS_LITERAL_STRING("release_version"), str);
}
int32_t version;
if (!mozilla::AndroidBridge::Bridge()->GetStaticIntField(
"android/os/Build$VERSION", "SDK_INT", &version)) {
version = 0;
}
android_sdk_version = version;
if (version >= 8 &&
mozilla::AndroidBridge::Bridge()->GetStaticStringField(
"android/os/Build", "HARDWARE", str)) {
SetPropertyAsAString(NS_LITERAL_STRING("hardware"), str);
}
bool isTablet = mozilla::widget::GeckoAppShell::IsTablet();
SetPropertyAsBool(NS_LITERAL_STRING("tablet"), isTablet);
// NSPR "version" is the kernel version. For Android we want the Android version.
// Rename SDK version to version and put the kernel version into kernel_version.
rv = GetPropertyAsAString(NS_LITERAL_STRING("version"), str);
if (NS_SUCCEEDED(rv)) {
SetPropertyAsAString(NS_LITERAL_STRING("kernel_version"), str);
}
SetPropertyAsInt32(NS_LITERAL_STRING("version"), android_sdk_version);
}
#endif
#ifdef MOZ_WIDGET_GONK
char sdk[PROP_VALUE_MAX];
if (__system_property_get("ro.build.version.sdk", sdk)) {
android_sdk_version = atoi(sdk);
SetPropertyAsInt32(NS_LITERAL_STRING("sdk_version"), android_sdk_version);
SetPropertyAsACString(NS_LITERAL_STRING("secondaryLibrary"),
nsPrintfCString("SDK %u", android_sdk_version));
}
char characteristics[PROP_VALUE_MAX];
if (__system_property_get("ro.build.characteristics", characteristics)) {
if (!strcmp(characteristics, "tablet")) {
SetPropertyAsBool(NS_LITERAL_STRING("tablet"), true);
}
}
nsAutoString str;
rv = GetPropertyAsAString(NS_LITERAL_STRING("version"), str);
if (NS_SUCCEEDED(rv)) {
SetPropertyAsAString(NS_LITERAL_STRING("kernel_version"), str);
}
const nsAdoptingString& b2g_os_name =
mozilla::Preferences::GetString("b2g.osName");
if (b2g_os_name) {
SetPropertyAsAString(NS_LITERAL_STRING("name"), b2g_os_name);
}
const nsAdoptingString& b2g_version =
mozilla::Preferences::GetString("b2g.version");
if (b2g_version) {
SetPropertyAsAString(NS_LITERAL_STRING("version"), b2g_version);
}
#endif
#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
SandboxInfo sandInfo = SandboxInfo::Get();
SetPropertyAsBool(NS_LITERAL_STRING("hasSeccompBPF"),
sandInfo.Test(SandboxInfo::kHasSeccompBPF));
SetPropertyAsBool(NS_LITERAL_STRING("hasSeccompTSync"),
sandInfo.Test(SandboxInfo::kHasSeccompTSync));
SetPropertyAsBool(NS_LITERAL_STRING("hasUserNamespaces"),
sandInfo.Test(SandboxInfo::kHasUserNamespaces));
SetPropertyAsBool(NS_LITERAL_STRING("hasPrivilegedUserNamespaces"),
sandInfo.Test(SandboxInfo::kHasPrivilegedUserNamespaces));
if (sandInfo.Test(SandboxInfo::kEnabledForContent)) {
SetPropertyAsBool(NS_LITERAL_STRING("canSandboxContent"),
sandInfo.CanSandboxContent());
}
if (sandInfo.Test(SandboxInfo::kEnabledForMedia)) {
SetPropertyAsBool(NS_LITERAL_STRING("canSandboxMedia"),
sandInfo.CanSandboxMedia());
}
#endif // XP_LINUX && MOZ_SANDBOX
return NS_OK;
}
void
nsSystemInfo::SetInt32Property(const nsAString& aPropertyName,
const int32_t aValue)
{
NS_WARN_IF_FALSE(aValue > 0, "Unable to read system value");
if (aValue > 0) {
#ifdef DEBUG
nsresult rv =
#endif
SetPropertyAsInt32(aPropertyName, aValue);
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "Unable to set property");
}
}
void
nsSystemInfo::SetUint32Property(const nsAString& aPropertyName,
const uint32_t aValue)
{
// Only one property is currently set via this function.
// It may legitimately be zero.
#ifdef DEBUG
nsresult rv =
#endif
SetPropertyAsUint32(aPropertyName, aValue);
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "Unable to set property");
}
void
nsSystemInfo::SetUint64Property(const nsAString& aPropertyName,
const uint64_t aValue)
{
NS_WARN_IF_FALSE(aValue > 0, "Unable to read system value");
if (aValue > 0) {
#ifdef DEBUG
nsresult rv =
#endif
SetPropertyAsUint64(aPropertyName, aValue);
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "Unable to set property");
}
}
#if defined(XP_WIN)
NS_IMETHODIMP
nsSystemInfo::Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData)
{
if (!strcmp(aTopic, "profile-do-change")) {
nsresult rv;
nsCOMPtr<nsIObserverService> obsService =
do_GetService(NS_OBSERVERSERVICE_CONTRACTID, &rv);
if (NS_FAILED(rv)) {
return rv;
}
rv = obsService->RemoveObserver(this, "profile-do-change");
if (NS_FAILED(rv)) {
return rv;
}
return GetProfileHDDInfo();
}
return NS_OK;
}
nsresult
nsSystemInfo::GetProfileHDDInfo()
{
nsAutoCString hddModel, hddRevision;
nsresult rv = GetHDDInfo(NS_APP_USER_PROFILE_50_DIR, hddModel, hddRevision);
if (NS_FAILED(rv)) {
return rv;
}
rv = SetPropertyAsACString(NS_LITERAL_STRING("profileHDDModel"), hddModel);
if (NS_FAILED(rv)) {
return rv;
}
rv = SetPropertyAsACString(NS_LITERAL_STRING("profileHDDRevision"),
hddRevision);
return rv;
}
NS_IMPL_ISUPPORTS_INHERITED(nsSystemInfo, nsHashPropertyBag, nsIObserver)
#endif // defined(XP_WIN)
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