BiteTheDDDDt opened a new pull request, #58833:
URL: https://github.com/apache/doris/pull/58833
### What problem does this PR solve?
make scanner wait worker timer more more accurate
This pull request refactors how scanner resource usage counters are updated
in `ScannerScheduler::_scanner_scan`. The update logic for scan CPU time and
real-time counters is now managed using a deferred execution pattern, ensuring
counters are updated immediately after scanning, regardless of how the function
exits. This change improves reliability and correctness, especially in error
scenarios.
Resource usage counter updates:
* Replaced the manual update of scan CPU time and real-time counters at the
end of the function with a `Defer` object that ensures these counters are
updated as soon as possible after scanning, even if the function exits early.
* Removed the previous explicit counter update block at the end of the
function, as this is now handled by the deferred logic.
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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