base/sys_info_mac.cc

   1 // Copyright (c) 2011 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
  12 #include "base/logging.h"
  13 #include "base/stringprintf.h"
  14
  15 namespace base {
  16
  17 // static
  18 std::string SysInfo::OperatingSystemName() {
  19   return "Mac OS X";
  20 }
  21
  22 // static
  23 std::string SysInfo::OperatingSystemVersion() {
  24   int32 major, minor, bugfix;
  25   OperatingSystemVersionNumbers(&major, &minor, &bugfix);
  26   return base::StringPrintf("%d.%d.%d", major, minor, bugfix);
  27 }
  28
  29 // static
  30 void SysInfo::OperatingSystemVersionNumbers(int32* major_version,
  31                                             int32* minor_version,
  32                                             int32* bugfix_version) {
  33   Gestalt(gestaltSystemVersionMajor,
  34       reinterpret_cast<SInt32*>(major_version));
  35   Gestalt(gestaltSystemVersionMinor,
  36       reinterpret_cast<SInt32*>(minor_version));
  37   Gestalt(gestaltSystemVersionBugFix,
  38       reinterpret_cast<SInt32*>(bugfix_version));
  39 }
  40
  41 // static
  42 int64 SysInfo::AmountOfPhysicalMemory() {
  43   struct host_basic_info hostinfo;
  44   mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
  45   int result = host_info(mach_host_self(),
  46                          HOST_BASIC_INFO,
  47                          reinterpret_cast<host_info_t>(&hostinfo),
  48                          &count);
  49   DCHECK_EQ(HOST_BASIC_INFO_COUNT, count);
  50   if (result != KERN_SUCCESS) {
  51     NOTREACHED();
  52     return 0;
  53   }
  54
  55   return static_cast<int64>(hostinfo.max_mem);
  56 }
  57
  58 }  // namespace base