[ISSUE #2213]🚨Refactor DefaultMappedFile#get_data🍻 #2214
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Caution Review failedThe pull request is closed. WalkthroughThe pull request focuses on refactoring the Changes
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rocketmq-store/src/log_file/mapped_file.rs(0 hunks)rocketmq-store/src/log_file/mapped_file/default_mapped_file_impl.rs(1 hunks)
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- rocketmq-store/src/log_file/mapped_file.rs
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rocketmq-store/src/log_file/mapped_file/default_mapped_file_impl.rs
[error] 563-563: The trait From<[u8]> is not implemented for BytesMut. Consider using BytesMut::from(&[u8]) instead as BytesMut implements From<&[u8]>.
[error] 563-563: Cannot use slice with dynamic size [u8] directly in From conversion. The size for values of type [u8] cannot be known at compilation time.
🪛 GitHub Actions: CI
rocketmq-store/src/log_file/mapped_file/default_mapped_file_impl.rs
[error] 563-563: Invalid type conversion: the trait bound bytes::BytesMut: std::convert::From<[u8]> is not satisfied. BytesMut does not implement From<[u8]>.
[error] 563-563: Cannot determine size at compile time: the size for values of type [u8] cannot be known at compilation time. The trait std::marker::Sized is not implemented for [u8].
⏰ Context from checks skipped due to timeout of 90000ms (1)
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| let buffer = BytesMut::from(self.mmapped_file.as_ref()[pos..read_end_position]); | ||
| MappedFile::release(self); |
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Fix BytesMut initialization and verify resource management.
The current implementation has two issues:
- The
BytesMutinitialization is incorrect and fails to compile becauseBytesMutdoesn't implementFrom<[u8]>. - Moving
MappedFile::release(self)after buffer creation could potentially lead to use-after-free if the buffer creation panics.
Fix the BytesMut initialization and restore the safe resource management:
- let buffer = BytesMut::from(self.mmapped_file.as_ref()[pos..read_end_position]);
- MappedFile::release(self);
+ let buffer = BytesMut::copy_from_slice(&self.mmapped_file.as_ref()[pos..read_end_position]);
+ let result = Some(buffer.freeze());
+ MappedFile::release(self);
+ resultThis change:
- Uses
copy_from_sliceto properly createBytesMutfrom the slice - Ensures
releaseis called even if buffer creation panics - Returns the result after releasing the resource
Committable suggestion skipped: line range outside the PR's diff.
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🪛 GitHub Actions: Codecov
[error] 563-563: The trait From<[u8]> is not implemented for BytesMut. Consider using BytesMut::from(&[u8]) instead as BytesMut implements From<&[u8]>.
[error] 563-563: Cannot use slice with dynamic size [u8] directly in From conversion. The size for values of type [u8] cannot be known at compilation time.
🪛 GitHub Actions: CI
[error] 563-563: Invalid type conversion: the trait bound bytes::BytesMut: std::convert::From<[u8]> is not satisfied. BytesMut does not implement From<[u8]>.
[error] 563-563: Cannot determine size at compile time: the size for values of type [u8] cannot be known at compilation time. The trait std::marker::Sized is not implemented for [u8].
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #2214 +/- ##
==========================================
- Coverage 28.72% 28.72% -0.01%
==========================================
Files 498 498
Lines 71113 71114 +1
==========================================
Hits 20430 20430
- Misses 50683 50684 +1 ☔ View full report in Codecov by Sentry. |
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Which Issue(s) This PR Fixes(Closes)
Fixes #2213
Brief Description
How Did You Test This Change?
Summary by CodeRabbit
MappedFileRefactortrait by removing several methodsusizeandu64types instead ofi32andi64DefaultMappedFileby accessing memory mapping directly, enhancing performance and resource management