File-sink-auto-flush-enabled

Read whether auto-flush is currently enabled on a FileSink. This helper exposes one important direct durability policy flag on the concrete sink.

Interface

pub fn FileSink::auto_flush_enabled(self : FileSink) -> Bool {

input

• self : FileSink - File sink whose auto-flush policy should be inspected.

output

• Bool - Whether auto-flush is currently enabled.

Explanation

Detailed rules explaining key parameters and behaviors

• This method reads the sink's current runtime auto-flush policy.
• It exposes policy state only and does not force any flush action.
• Auto-flush affects whether writes attempt a flush after each rendered record.
• This helper does not mutate sink state.

How to Use

Here are some specific examples provided.

When Need Direct Durability Visibility

When diagnostics should expose whether each write auto-flushes:

let enabled = sink.auto_flush_enabled()

In this example, direct file durability policy is surfaced from the sink itself.

When Validate Policy Updates

When code should observe auto-flush after a setter call:

sink.set_auto_flush(true)
ignore(sink.auto_flush_enabled())

In this example, callers verify the updated policy on the concrete file sink.

Error Case

e.g.:

• If callers need to actually flush the file, flush() is the operational API.

• This helper does not say whether the sink is open or whether prior flushes succeeded.

Notes

1. Use this helper to inspect direct sink durability policy.

2. It complements set_auto_flush(...) rather than replacing real flush actions.