Discussion

The DDLogFileManager instance can be used to retrieve the list of log files, and configure the maximum number of archived log files to keep.

Discussion

Log File Rolling:

maximumFileSize: The approximate maximum size to allow log files to grow. If a log file is larger than this value after a log statement is appended, then the log file is rolled.

rollingFrequency How often to roll the log file. The frequency is given as an NSTimeInterval, which is a double that specifies the interval in seconds. Once the log file gets to be this old, it is rolled.

Both the maximumFileSize and the rollingFrequency are used to manage rolling. Whichever occurs first will cause the log file to be rolled.

For example: The rollingFrequency is 24 hours, but the log file surpasses the maximumFileSize after only 20 hours. The log file will be rolled at that 20 hour mark. A new log file will be created, and the 24 hour timer will be restarted.

You may optionally disable rolling due to filesize by setting maximumFileSize to zero. If you do so, rolling is based solely on rollingFrequency.

You may optionally disable rolling due to time by setting rollingFrequency to zero (or any non-positive number). If you do so, rolling is based solely on maximumFileSize.

If you disable both maximumFileSize and rollingFrequency, then the log file won’t ever be rolled. This is strongly discouraged.