Configured-logger-file-set-rotation

Update the rotation configuration used by a ConfiguredLogger file sink. This helper changes runtime file rotation behavior without rebuilding the logger.

Interface

pub fn ConfiguredLogger::file_set_rotation(
  self : ConfiguredLogger,
  rotation : FileRotation?,
) -> Bool {}

input

• self : ConfiguredLogger - Config-driven runtime logger whose rotation policy should change.
• rotation : FileRotation? - New rotation config, or None to disable rotation.

output

• Bool - Whether the policy update was applied.

Explanation

Detailed rules explaining key parameters and behaviors

• File-backed sinks update their runtime rotation policy through the wrapped RuntimeSink.
• Queued file sinks forward the update to the wrapped inner file sink.
• Passing None disables rotation.
• Non-file sinks return false.

How to Use

Here are some specific examples provided.

When Need Runtime Rotation Tuning

When a file sink should enable or change rotation dynamically:

ignore(logger.file_set_rotation(Some(file_rotation(1024, max_backups=3))))

In this example, runtime rotation behavior is updated without rebuilding the logger.

When Need To Disable Rotation

When the file sink should stop rotating:

let ok = logger.file_set_rotation(None)

In this example, the runtime file sink has its rotation policy cleared explicitly.

Error Case

e.g.:

• If the configured sink is not file-backed, the method returns false.

• If callers only want to remove rotation, file_clear_rotation() is the more direct API.

Notes

1. Use this helper when setting a full runtime rotation config.

2. It is useful for operational tuning without rebuilding the logger.