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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/sys_info.h" | |
| 6 | |
| 7 #include <mach/mach.h> | |
| 8 #include <sys/sysctl.h> | |
| 9 #include <sys/types.h> | |
| 10 #import <UIKit/UIKit.h> | |
| 11 | |
| 12 #include "base/logging.h" | |
| 13 #include "base/mac/scoped_mach_port.h" | |
| 14 #include "base/mac/scoped_nsautorelease_pool.h" | |
| 15 #include "base/strings/sys_string_conversions.h" | |
| 16 | |
| 17 namespace base { | |
| 18 | |
| 19 // static | |
| 20 std::string SysInfo::OperatingSystemName() { | |
| 21 static dispatch_once_t get_system_name_once; | |
| 22 static std::string* system_name; | |
| 23 dispatch_once(&get_system_name_once, ^{ | |
| 24 base::mac::ScopedNSAutoreleasePool pool; | |
| 25 system_name = new std::string( | |
| 26 SysNSStringToUTF8([[UIDevice currentDevice] systemName])); | |
| 27 }); | |
| 28 // Examples of returned value: 'iPhone OS' on iPad 5.1.1 | |
| 29 // and iPhone 5.1.1. | |
| 30 return *system_name; | |
| 31 } | |
| 32 | |
| 33 // static | |
| 34 std::string SysInfo::OperatingSystemVersion() { | |
| 35 static dispatch_once_t get_system_version_once; | |
| 36 static std::string* system_version; | |
| 37 dispatch_once(&get_system_version_once, ^{ | |
| 38 base::mac::ScopedNSAutoreleasePool pool; | |
| 39 system_version = new std::string( | |
| 40 SysNSStringToUTF8([[UIDevice currentDevice] systemVersion])); | |
| 41 }); | |
| 42 return *system_version; | |
| 43 } | |
| 44 | |
| 45 // static | |
| 46 void SysInfo::OperatingSystemVersionNumbers(int32* major_version, | |
| 47 int32* minor_version, | |
| 48 int32* bugfix_version) { | |
| 49 base::mac::ScopedNSAutoreleasePool pool; | |
| 50 std::string system_version = OperatingSystemVersion(); | |
| 51 if (!system_version.empty()) { | |
| 52 // Try to parse out the version numbers from the string. | |
| 53 int num_read = sscanf(system_version.c_str(), "%d.%d.%d", major_version, | |
| 54 minor_version, bugfix_version); | |
| 55 if (num_read < 1) | |
| 56 *major_version = 0; | |
| 57 if (num_read < 2) | |
| 58 *minor_version = 0; | |
| 59 if (num_read < 3) | |
| 60 *bugfix_version = 0; | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 // static | |
| 65 int64 SysInfo::AmountOfPhysicalMemory() { | |
| 66 struct host_basic_info hostinfo; | |
| 67 mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT; | |
| 68 base::mac::ScopedMachSendRight host(mach_host_self()); | |
| 69 int result = host_info(host, | |
| 70 HOST_BASIC_INFO, | |
| 71 reinterpret_cast<host_info_t>(&hostinfo), | |
| 72 &count); | |
| 73 if (result != KERN_SUCCESS) { | |
| 74 NOTREACHED(); | |
| 75 return 0; | |
| 76 } | |
| 77 DCHECK_EQ(HOST_BASIC_INFO_COUNT, count); | |
| 78 return static_cast<int64>(hostinfo.max_mem); | |
| 79 } | |
| 80 | |
| 81 // static | |
| 82 int64 SysInfo::AmountOfAvailablePhysicalMemory() { | |
| 83 base::mac::ScopedMachSendRight host(mach_host_self()); | |
| 84 vm_statistics_data_t vm_info; | |
| 85 mach_msg_type_number_t count = HOST_VM_INFO_COUNT; | |
| 86 if (host_statistics(host.get(), | |
| 87 HOST_VM_INFO, | |
| 88 reinterpret_cast<host_info_t>(&vm_info), | |
| 89 &count) != KERN_SUCCESS) { | |
| 90 NOTREACHED(); | |
| 91 return 0; | |
| 92 } | |
| 93 | |
| 94 return static_cast<int64>( | |
| 95 vm_info.free_count - vm_info.speculative_count) * PAGE_SIZE; | |
| 96 } | |
| 97 | |
| 98 // static | |
| 99 std::string SysInfo::CPUModelName() { | |
| 100 char name[256]; | |
| 101 size_t len = arraysize(name); | |
| 102 if (sysctlbyname("machdep.cpu.brand_string", &name, &len, NULL, 0) == 0) | |
| 103 return name; | |
| 104 return std::string(); | |
| 105 } | |
| 106 | |
| 107 } // namespace base | |
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