91 lines
2.7 KiB
Plaintext
91 lines
2.7 KiB
Plaintext
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/sys_info.h"
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#import <UIKit/UIKit.h>
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#include <mach/mach.h>
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#include <sys/sysctl.h>
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#include <sys/types.h>
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#include "base/logging.h"
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#include "base/mac/scoped_mach_port.h"
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#include "base/mac/scoped_nsautorelease_pool.h"
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#include "base/strings/sys_string_conversions.h"
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namespace base {
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// static
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std::string SysInfo::OperatingSystemName() {
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static dispatch_once_t get_system_name_once;
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static std::string* system_name;
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dispatch_once(&get_system_name_once, ^{
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base::mac::ScopedNSAutoreleasePool pool;
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system_name = new std::string(
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SysNSStringToUTF8([[UIDevice currentDevice] systemName]));
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});
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// Examples of returned value: 'iPhone OS' on iPad 5.1.1
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// and iPhone 5.1.1.
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return *system_name;
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}
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// static
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std::string SysInfo::OperatingSystemVersion() {
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static dispatch_once_t get_system_version_once;
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static std::string* system_version;
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dispatch_once(&get_system_version_once, ^{
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base::mac::ScopedNSAutoreleasePool pool;
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system_version = new std::string(
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SysNSStringToUTF8([[UIDevice currentDevice] systemVersion]));
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});
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return *system_version;
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}
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// static
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void SysInfo::OperatingSystemVersionNumbers(int32* major_version,
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int32* minor_version,
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int32* bugfix_version) {
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base::mac::ScopedNSAutoreleasePool pool;
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std::string system_version = OperatingSystemVersion();
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if (!system_version.empty()) {
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// Try to parse out the version numbers from the string.
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int num_read = sscanf(system_version.c_str(), "%d.%d.%d", major_version,
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minor_version, bugfix_version);
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if (num_read < 1)
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*major_version = 0;
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if (num_read < 2)
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*minor_version = 0;
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if (num_read < 3)
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*bugfix_version = 0;
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}
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}
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// static
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int64 SysInfo::AmountOfPhysicalMemory() {
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struct host_basic_info hostinfo;
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mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
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base::mac::ScopedMachPort host(mach_host_self());
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int result = host_info(host,
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HOST_BASIC_INFO,
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reinterpret_cast<host_info_t>(&hostinfo),
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&count);
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if (result != KERN_SUCCESS) {
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NOTREACHED();
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return 0;
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}
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DCHECK_EQ(HOST_BASIC_INFO_COUNT, count);
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return static_cast<int64>(hostinfo.max_mem);
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}
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// static
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std::string SysInfo::CPUModelName() {
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char name[256];
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size_t len = arraysize(name);
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if (sysctlbyname("machdep.cpu.brand_string", &name, &len, NULL, 0) == 0)
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return name;
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return std::string();
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}
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} // namespace base
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