|
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. |
|
4 |
|
5 #include "base/sys_info.h" |
|
6 |
|
7 #include <CoreServices/CoreServices.h> |
|
8 |
|
9 namespace base { |
|
10 |
|
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; |
|
19 |
|
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 } |
|
30 |
|
31 *major_version = major_version_cached; |
|
32 *minor_version = minor_version_cached; |
|
33 *bugfix_version = bugfix_version_cached; |
|
34 } |
|
35 |
|
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 } |
|
45 |
|
46 } // namespace base |