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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_INSTALLER_UTIL_LOGGING_INSTALLER_H_ | 5 #ifndef CHROME_INSTALLER_UTIL_LOGGING_INSTALLER_H_ |
6 #define CHROME_INSTALLER_UTIL_LOGGING_INSTALLER_H_ | 6 #define CHROME_INSTALLER_UTIL_LOGGING_INSTALLER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 | 9 |
10 namespace base { | 10 namespace base { |
11 class FilePath; | 11 class FilePath; |
12 } | 12 } |
13 | 13 |
14 namespace installer { | 14 namespace installer { |
15 | 15 |
16 class MasterPreferences; | 16 class MasterPreferences; |
17 | 17 |
18 // Verbose installer runs clock in at around 50K, non-verbose much less than | 18 // Verbose installer runs clock in at around 50K, non-verbose much less than |
19 // that. Some installer operations span multiple setup.exe runs, so we try | 19 // that. Some installer operations span multiple setup.exe runs, so we try |
20 // to keep enough for at least 10 runs or so at any given time. | 20 // to keep enough for at least 10 runs or so at any given time. |
21 const int kMaxInstallerLogFileSize = 1024 * 1024; | 21 const int kMaxInstallerLogFileSize = 1024 * 1024; |
22 | 22 |
23 // Truncate the file down to half of the max, such that we don't incur | 23 // Truncate the file down to half of the max, such that we don't incur |
24 // truncation on every update. | 24 // truncation on every update. |
25 const int kTruncatedInstallerLogFileSize = kMaxInstallerLogFileSize / 2; | 25 const int kTruncatedInstallerLogFileSize = kMaxInstallerLogFileSize / 2; |
26 | 26 |
27 COMPILE_ASSERT(kTruncatedInstallerLogFileSize < kMaxInstallerLogFileSize, | 27 static_assert(kTruncatedInstallerLogFileSize < kMaxInstallerLogFileSize, |
28 kTruncatedInstallerLogFileSize_not_lt_kMaxInstallerLogFileSize); | 28 "kTruncatedInstallerLogFileSize must be less than " |
| 29 "kMaxInstallerLogFileSize"); |
29 | 30 |
30 enum TruncateResult { | 31 enum TruncateResult { |
31 LOGFILE_UNTOUCHED, | 32 LOGFILE_UNTOUCHED, |
32 LOGFILE_TRUNCATED, | 33 LOGFILE_TRUNCATED, |
33 LOGFILE_DELETED, | 34 LOGFILE_DELETED, |
34 }; | 35 }; |
35 | 36 |
36 // Cuts off the _beginning_ of the file at |log_file| down to | 37 // Cuts off the _beginning_ of the file at |log_file| down to |
37 // kTruncatedInstallerLogFileSize if it exceeds kMaxInstallerLogFileSize bytes. | 38 // kTruncatedInstallerLogFileSize if it exceeds kMaxInstallerLogFileSize bytes. |
38 // | 39 // |
39 // If the file is not changed, returns LOGFILE_UNTOUCHED. | 40 // If the file is not changed, returns LOGFILE_UNTOUCHED. |
40 // If the file is successfully truncated, returns LOGFILE_TRUNCATED. | 41 // If the file is successfully truncated, returns LOGFILE_TRUNCATED. |
41 // If the file needed truncation, but the truncation failed, the file will be | 42 // If the file needed truncation, but the truncation failed, the file will be |
42 // deleted and the function returns LOGFILE_DELETED. This is done to prevent | 43 // deleted and the function returns LOGFILE_DELETED. This is done to prevent |
43 // run-away log files and guard against full disks. | 44 // run-away log files and guard against full disks. |
44 TruncateResult TruncateLogFileIfNeeded(const base::FilePath& log_file); | 45 TruncateResult TruncateLogFileIfNeeded(const base::FilePath& log_file); |
45 | 46 |
46 // Call to initialize logging for Chrome installer. | 47 // Call to initialize logging for Chrome installer. |
47 void InitInstallerLogging(const installer::MasterPreferences& prefs); | 48 void InitInstallerLogging(const installer::MasterPreferences& prefs); |
48 | 49 |
49 // Call when done using logging for Chrome installer. | 50 // Call when done using logging for Chrome installer. |
50 void EndInstallerLogging(); | 51 void EndInstallerLogging(); |
51 | 52 |
52 // Returns the full path of the log file. | 53 // Returns the full path of the log file. |
53 base::FilePath GetLogFilePath(const installer::MasterPreferences& prefs); | 54 base::FilePath GetLogFilePath(const installer::MasterPreferences& prefs); |
54 | 55 |
55 } // namespace installer | 56 } // namespace installer |
56 | 57 |
57 #endif // CHROME_INSTALLER_UTIL_LOGGING_INSTALLER_H_ | 58 #endif // CHROME_INSTALLER_UTIL_LOGGING_INSTALLER_H_ |
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