base/sys_info_mac.cc

   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 <ApplicationServices/ApplicationServices.h>
   8 #include <CoreServices/CoreServices.h>
   9 #include <mach/mach_host.h>
  10 #include <mach/mach_init.h>
  11 #include <sys/sysctl.h>
  12 #include <sys/types.h>
  13
  14 #include "base/logging.h"
  15 #include "base/mac/scoped_mach_port.h"
  16 #include "base/strings/stringprintf.h"
  17
  18 namespace base {
  19
  20 // static
  21 std::string SysInfo::OperatingSystemName() {
  22   return "Mac OS X";
  23 }
  24
  25 // static
  26 std::string SysInfo::OperatingSystemVersion() {
  27   int32 major, minor, bugfix;
  28   OperatingSystemVersionNumbers(&major, &minor, &bugfix);
  29   return base::StringPrintf("%d.%d.%d", major, minor, bugfix);
  30 }
  31
  32 // static
  33 void SysInfo::OperatingSystemVersionNumbers(int32* major_version,
  34                                             int32* minor_version,
  35                                             int32* bugfix_version) {
  36   Gestalt(gestaltSystemVersionMajor,
  37       reinterpret_cast<SInt32*>(major_version));
  38   Gestalt(gestaltSystemVersionMinor,
  39       reinterpret_cast<SInt32*>(minor_version));
  40   Gestalt(gestaltSystemVersionBugFix,
  41       reinterpret_cast<SInt32*>(bugfix_version));
  42 }
  43
  44 // static
  45 int64 SysInfo::AmountOfPhysicalMemory() {
  46   struct host_basic_info hostinfo;
  47   mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
  48   base::mac::ScopedMachPort host(mach_host_self());
  49   int result = host_info(host,
  50                          HOST_BASIC_INFO,
  51                          reinterpret_cast<host_info_t>(&hostinfo),
  52                          &count);
  53   if (result != KERN_SUCCESS) {
  54     NOTREACHED();
  55     return 0;
  56   }
  57   DCHECK_EQ(HOST_BASIC_INFO_COUNT, count);
  58   return static_cast<int64>(hostinfo.max_mem);
  59 }
  60
  61 // static
  62 int64 SysInfo::AmountOfAvailablePhysicalMemory() {
  63   base::mac::ScopedMachPort host(mach_host_self());
  64   vm_statistics_data_t vm_info;
  65   mach_msg_type_number_t count = HOST_VM_INFO_COUNT;
  66
  67   if (host_statistics(host.get(),
  68                       HOST_VM_INFO,
  69                       reinterpret_cast<host_info_t>(&vm_info),
  70                       &count) != KERN_SUCCESS) {
  71     NOTREACHED();
  72     return 0;
  73   }
  74
  75   return static_cast<int64>(
  76       vm_info.free_count - vm_info.speculative_count) * PAGE_SIZE;
  77 }
  78
  79 // static
  80 std::string SysInfo::CPUModelName() {
  81   char name[256];
  82   size_t len = arraysize(name);
  83   if (sysctlbyname("machdep.cpu.brand_string", &name, &len, NULL, 0) == 0)
  84     return name;
  85   return std::string();
  86 }
  87
  88 }  // namespace base