blob: 8ba29cc40b83029b71748263b5f8e84d530f6fd4 [file] [log] [blame]
// Copyright 2016 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 <ApplicationServices/ApplicationServices.h>
#include <CoreServices/CoreServices.h>
#import <Foundation/Foundation.h>
#include <mach/mach_host.h>
#include <mach/mach_init.h>
#include <stddef.h>
#include <stdint.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include "base/logging.h"
#include "base/mac/mac_util.h"
#include "base/mac/scoped_mach_port.h"
#import "base/mac/sdk_forward_declarations.h"
#include "base/macros.h"
#include "base/process/process_metrics.h"
#include "base/strings/stringprintf.h"
namespace base {
namespace {
// Queries sysctlbyname() for the given key and returns the value from the
// system or the empty string on failure.
std::string GetSysctlValue(const char* key_name) {
char value[256];
size_t len = arraysize(value);
if (sysctlbyname(key_name, &value, &len, nullptr, 0) == 0) {
DCHECK_GE(len, 1u);
DCHECK_EQ('\0', value[len - 1]);
return std::string(value, len - 1);
return std::string();
} // namespace
// static
std::string SysInfo::OperatingSystemName() {
return "Mac OS X";
// static
std::string SysInfo::OperatingSystemVersion() {
int32_t major, minor, bugfix;
OperatingSystemVersionNumbers(&major, &minor, &bugfix);
return base::StringPrintf("%d.%d.%d", major, minor, bugfix);
// static
void SysInfo::OperatingSystemVersionNumbers(int32_t* major_version,
int32_t* minor_version,
int32_t* bugfix_version) {
NSProcessInfo* processInfo = [NSProcessInfo processInfo];
// We should try to avoid using Gestalt here because it has been observed to
// spin up threads among other things. Using an availability check here would
// prevent us from using the private API in 10.9.2. So use a
// respondsToSelector check here instead and silence the warning.
if ([processInfo respondsToSelector:@selector(operatingSystemVersion)]) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunguarded-availability"
NSOperatingSystemVersion version = [processInfo operatingSystemVersion];
#pragma clang diagnostic pop
*major_version = version.majorVersion;
*minor_version = version.minorVersion;
*bugfix_version = version.patchVersion;
} else {
// -[NSProcessInfo operatingSystemVersion] is documented available in 10.10.
// It's also available via a private API since 10.9.2. For the remaining
// cases in 10.9, rely on ::Gestalt(..). Since this code is only needed for
// 10.9.0 and 10.9.1 and uses the recommended replacement thereafter,
// suppress the warning for this fallback case.
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#pragma clang diagnostic pop
// static
int64_t SysInfo::AmountOfPhysicalMemoryImpl() {
struct host_basic_info hostinfo;
mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
base::mac::ScopedMachSendRight host(mach_host_self());
int result = host_info(host.get(),
if (result != KERN_SUCCESS) {
return 0;
return static_cast<int64_t>(hostinfo.max_mem);
// static
int64_t SysInfo::AmountOfAvailablePhysicalMemoryImpl() {
SystemMemoryInfoKB info;
if (!GetSystemMemoryInfo(&info))
return 0;
// We should add inactive file-backed memory also but there is no such
// information from Mac OS unfortunately.
return static_cast<int64_t>( + info.speculative) * 1024;
// static
std::string SysInfo::CPUModelName() {
return GetSysctlValue("machdep.cpu.brand_string");
// static
std::string SysInfo::HardwareModelName() {
return GetSysctlValue("hw.model");
} // namespace base