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// 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/system/sys_info.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/check_op.h"
#include "base/cxx17_backports.h"
#include "base/mac/mac_util.h"
#include "base/mac/scoped_mach_port.h"
#include "base/notreached.h"
#include "base/process/process_metrics.h"
#include "base/strings/string_util.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 = base::size(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) {
NSOperatingSystemVersion version =
[[NSProcessInfo processInfo] operatingSystemVersion];
*major_version = version.majorVersion;
*minor_version = version.minorVersion;
*bugfix_version = version.patchVersion;
}
// static
std::string SysInfo::OperatingSystemArchitecture() {
switch (mac::GetCPUType()) {
case mac::CPUType::kIntel:
return "x86_64";
case mac::CPUType::kTranslatedIntel:
case mac::CPUType::kArm:
return "arm64";
}
}
// 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(), HOST_BASIC_INFO,
reinterpret_cast<host_info_t>(&hostinfo), &count);
if (result != KERN_SUCCESS) {
NOTREACHED();
return 0;
}
DCHECK_EQ(HOST_BASIC_INFO_COUNT, count);
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.free + info.speculative) * 1024;
}
// static
std::string SysInfo::CPUModelName() {
return GetSysctlValue("machdep.cpu.brand_string");
}
// static
std::string SysInfo::HardwareModelName() {
return GetSysctlValue("hw.model");
}
// static
SysInfo::HardwareInfo SysInfo::GetHardwareInfoSync() {
HardwareInfo info;
info.manufacturer = "Apple Inc.";
info.model = HardwareModelName();
DCHECK(IsStringUTF8(info.manufacturer));
DCHECK(IsStringUTF8(info.model));
return info;
}
} // namespace base
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