Configured-logger-file-flush-failures

Read the number of flush failures recorded by a ConfiguredLogger file sink. This helper is useful for diagnosing durability-path problems on file-backed loggers.

Interface

pub fn ConfiguredLogger::file_flush_failures(self : ConfiguredLogger) -> Int {}

input

• self : ConfiguredLogger - Config-driven runtime logger whose flush-failure counter should be inspected.

output

• Int - Number of recorded flush failures.

Explanation

Detailed rules explaining key parameters and behaviors

• File-backed sinks report their recorded flush-failure count through the wrapped RuntimeSink.
• Queued file sinks forward the metric from the wrapped inner file sink.
• Non-file sinks return 0.
• The counter is cumulative until reset.

How to Use

Here are some specific examples provided.

When Need Durability-path Diagnostics

When support output should show flush-path instability:

let count = logger.file_flush_failures()

In this example, the configured logger exposes whether flush attempts have been failing.

When Inspect Effects Of Auto-flush Policy

When runtime durability tuning should be inspected operationally:

ignore(logger.file_flush_failures())

In this example, callers can correlate flush failures with runtime file policy choices.

Error Case

e.g.:

• If the configured sink is not file-backed, the method returns 0.

• If callers need current policy and counters together, file_state() is the better API.

Notes

1. Use this helper when flush-path reliability matters.

2. Pair it with file_auto_flush() and file_flush() when diagnosing durability behavior.