2.0 KiB
name, group, category, update-time, description, key-word
| name | group | category | update-time | description | key-word | ||||
|---|---|---|---|---|---|---|---|---|---|
| file-sink-reopen-with-current-policy | api | sink | 20260613 | Reopen a FileSink using its currently stored runtime policy. |
|
File-sink-reopen-with-current-policy
Reopen a FileSink using the currently stored runtime policy. This helper is useful when direct recovery should happen without supplying a one-off append override.
Interface
pub fn FileSink::reopen_with_current_policy(self : FileSink) -> Bool {
input
self : FileSink- File sink that should be reopened with current policy.
output
Bool- Whether reopen succeeded.
Explanation
Detailed rules explaining key parameters and behaviors
- This helper reuses the sink's currently stored append policy.
- It differs from
reopen(...)because it does not accept a per-call append override. - Existing handle state is handled through the underlying
reopen(...)behavior. - On failure, the sink remains unavailable and
open_failuresis updated by the reopen path.
How to Use
Here are some specific examples provided.
When Need Policy-preserving Recovery
When a file sink should be reopened without changing runtime append behavior:
ignore(sink.reopen_with_current_policy())
In this example, recovery reuses the runtime policy already stored on the sink.
When Separate Recovery From Policy Mutation
When append mode should be controlled elsewhere:
let ok = sink.reopen_with_current_policy()
In this example, reopen is explicit while policy mutation stays separate.
Error Case
e.g.:
-
If callers want to change append behavior during reopen,
reopen(...),reopen_append(), orreopen_truncate()are better APIs. -
This helper still depends on the underlying file backend being able to reopen the path successfully.
Notes
-
Use this helper when recovery should respect the currently stored runtime policy.
-
It is clearer than passing no override through a more general reopen API.