The Tor Browser: ipc/chromium/src/base/sys_info

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2009 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.

     5 #include "base/sys_info.h"

     7 #include <CoreServices/CoreServices.h>

     9 namespace base {

    11 // static

    12 void SysInfo::OperatingSystemVersionNumbers(int32_t *major_version,

    13                                             int32_t *minor_version,

    14                                             int32_t *bugfix_version) {

    15   static bool is_initialized = false;

    16   static int32_t major_version_cached = 0;

    17   static int32_t minor_version_cached = 0;

    18   static int32_t bugfix_version_cached = 0;

    20   if (!is_initialized) {

    21     // Gestalt can't be called in the sandbox, so we cache its return value.

    22     Gestalt(gestaltSystemVersionMajor,

    23         reinterpret_cast<SInt32*>(&major_version_cached));

    24     Gestalt(gestaltSystemVersionMinor,

    25         reinterpret_cast<SInt32*>(&minor_version_cached));

    26     Gestalt(gestaltSystemVersionBugFix,

    27         reinterpret_cast<SInt32*>(&bugfix_version_cached));

    28     is_initialized = true;

    29   }

    31   *major_version = major_version_cached;

    32   *minor_version = minor_version_cached;

    33   *bugfix_version = bugfix_version_cached;

    34 }

    36 // static

    37 void SysInfo::CacheSysInfo() {

    38   // Due to startup time concerns [premature optimization?] we only cache values

    39   // from functions we know to be called in the renderer & fail when the sandbox

    40   // is enabled.

    41   NumberOfProcessors();

    42   int32_t dummy;

    43   OperatingSystemVersionNumbers(&dummy, &dummy, &dummy);

    44 }

    46 }  // namespace base

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