dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 1 | // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 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 "base/basictypes.h" |
| 8 | #include "base/file_path.h" |
| 9 | #include "base/file_util.h" |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 10 | #include "base/lazy_instance.h" |
brettw@chromium.org | c1093e2 | 2010-08-01 02:29:25 +0900 | [diff] [blame] | 11 | #include "base/string_number_conversions.h" |
tedvessenes@gmail.com | f369736 | 2011-12-20 01:10:55 +0900 | [diff] [blame] | 12 | #include "base/string_piece.h" |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 13 | #include "base/string_tokenizer.h" |
brettw@chromium.org | 5b5f5e0 | 2011-01-01 10:01:06 +0900 | [diff] [blame] | 14 | #include "base/threading/thread_restrictions.h" |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 15 | |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 16 | #include <execinfo.h> |
| 17 | |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 18 | namespace base { |
| 19 | |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 20 | static const char* kLinuxStandardBaseVersionKeys[] = { |
| 21 | "CHROMEOS_RELEASE_VERSION", |
| 22 | "GOOGLE_RELEASE", |
| 23 | "DISTRIB_RELEASE", |
| 24 | NULL |
| 25 | }; |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 26 | |
| 27 | const char kLinuxStandardBaseReleaseFile[] = "/etc/lsb-release"; |
| 28 | |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 29 | struct ChromeOSVersionNumbers { |
| 30 | ChromeOSVersionNumbers() |
| 31 | : major_version(0), |
| 32 | minor_version(0), |
| 33 | bugfix_version(0), |
| 34 | parsed(false) { |
| 35 | } |
| 36 | |
| 37 | int32 major_version; |
| 38 | int32 minor_version; |
| 39 | int32 bugfix_version; |
| 40 | bool parsed; |
| 41 | }; |
| 42 | |
| 43 | static base::LazyInstance<ChromeOSVersionNumbers> |
joth@chromium.org | b24883c | 2011-11-15 22:31:49 +0900 | [diff] [blame] | 44 | g_chrome_os_version_numbers = LAZY_INSTANCE_INITIALIZER; |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 45 | |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 46 | // static |
pkasting@chromium.org | 271d9db | 2011-04-08 07:15:34 +0900 | [diff] [blame] | 47 | void SysInfo::OperatingSystemVersionNumbers(int32* major_version, |
| 48 | int32* minor_version, |
| 49 | int32* bugfix_version) { |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 50 | if (!g_chrome_os_version_numbers.Get().parsed) { |
| 51 | // The other implementations of SysInfo don't block on the disk. |
| 52 | // See http://code.google.com/p/chromium/issues/detail?id=60394 |
| 53 | // Perhaps the caller ought to cache this? |
| 54 | // Temporary allowing while we work the bug out. |
| 55 | base::ThreadRestrictions::ScopedAllowIO allow_io; |
evan@chromium.org | 7c9cd8b | 2010-10-23 14:19:20 +0900 | [diff] [blame] | 56 | |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 57 | FilePath path(kLinuxStandardBaseReleaseFile); |
| 58 | std::string contents; |
| 59 | if (file_util::ReadFileToString(path, &contents)) { |
| 60 | g_chrome_os_version_numbers.Get().parsed = true; |
| 61 | ParseLsbRelease(contents, |
| 62 | &(g_chrome_os_version_numbers.Get().major_version), |
| 63 | &(g_chrome_os_version_numbers.Get().minor_version), |
| 64 | &(g_chrome_os_version_numbers.Get().bugfix_version)); |
| 65 | } |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 66 | } |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 67 | *major_version = g_chrome_os_version_numbers.Get().major_version; |
| 68 | *minor_version = g_chrome_os_version_numbers.Get().minor_version; |
| 69 | *bugfix_version = g_chrome_os_version_numbers.Get().bugfix_version; |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | // static |
| 73 | std::string SysInfo::GetLinuxStandardBaseVersionKey() { |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 74 | return std::string(kLinuxStandardBaseVersionKeys[0]); |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 75 | } |
| 76 | |
| 77 | // static |
| 78 | void SysInfo::ParseLsbRelease(const std::string& lsb_release, |
pkasting@chromium.org | 271d9db | 2011-04-08 07:15:34 +0900 | [diff] [blame] | 79 | int32* major_version, |
| 80 | int32* minor_version, |
| 81 | int32* bugfix_version) { |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 82 | size_t version_key_index = std::string::npos; |
| 83 | for (int i = 0; kLinuxStandardBaseVersionKeys[i] != NULL; ++i) { |
| 84 | version_key_index = lsb_release.find(kLinuxStandardBaseVersionKeys[i]); |
| 85 | if (std::string::npos != version_key_index) { |
| 86 | break; |
| 87 | } |
| 88 | } |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 89 | if (std::string::npos == version_key_index) { |
| 90 | return; |
| 91 | } |
dgozman@chromium.org | 4fadf42 | 2011-04-05 20:31:42 +0900 | [diff] [blame] | 92 | |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 93 | size_t start_index = lsb_release.find_first_of('=', version_key_index); |
| 94 | start_index++; // Move past '='. |
| 95 | size_t length = lsb_release.find_first_of('\n', start_index) - start_index; |
| 96 | std::string version = lsb_release.substr(start_index, length); |
| 97 | StringTokenizer tokenizer(version, "."); |
rkc@chromium.org | d9ab606 | 2011-10-03 15:22:12 +0900 | [diff] [blame] | 98 | for (int i = 0; i < 3 && tokenizer.GetNext(); ++i) { |
| 99 | if (0 == i) { |
tedvessenes@gmail.com | f369736 | 2011-12-20 01:10:55 +0900 | [diff] [blame] | 100 | StringToInt(StringPiece(tokenizer.token_begin(), |
| 101 | tokenizer.token_end()), |
erikwright@chromium.org | f8b4b81 | 2010-10-23 01:05:47 +0900 | [diff] [blame] | 102 | major_version); |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 103 | *minor_version = *bugfix_version = 0; |
rkc@chromium.org | d9ab606 | 2011-10-03 15:22:12 +0900 | [diff] [blame] | 104 | } else if (1 == i) { |
tedvessenes@gmail.com | f369736 | 2011-12-20 01:10:55 +0900 | [diff] [blame] | 105 | StringToInt(StringPiece(tokenizer.token_begin(), |
| 106 | tokenizer.token_end()), |
erikwright@chromium.org | f8b4b81 | 2010-10-23 01:05:47 +0900 | [diff] [blame] | 107 | minor_version); |
rkc@chromium.org | d9ab606 | 2011-10-03 15:22:12 +0900 | [diff] [blame] | 108 | } else { // 2 == i |
tedvessenes@gmail.com | f369736 | 2011-12-20 01:10:55 +0900 | [diff] [blame] | 109 | StringToInt(StringPiece(tokenizer.token_begin(), |
| 110 | tokenizer.token_end()), |
erikwright@chromium.org | f8b4b81 | 2010-10-23 01:05:47 +0900 | [diff] [blame] | 111 | bugfix_version); |
evan@chromium.org | 54b7210 | 2009-07-22 09:35:18 +0900 | [diff] [blame] | 112 | } |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | } // namespace base |