[ISSUE #2190]💫Add MappedFileRefactor trait🍻 #2191
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rocketmq-store/src/log_file/mapped_file.rs(2 hunks)
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🔇 Additional comments (3)
rocketmq-store/src/log_file/mapped_file.rs (3)
610-615: Verify ifappend_messagerequires mutable access and consider passingmessage_callbackby referenceThe
append_messagemethod now takes&MessageExtBrokerInnerinstead of&mut MessageExtBrokerInner. If the implementation modifiesmessage, it should accept a mutable reference.Additionally,
message_callbackis now passed by value instead of by reference. IfAMCis a large type or notCopy, passing it by reference&AMCmight be more efficient.
617-622: Verify ifappend_messagesrequires mutable parameters and consider passingmessage_callbackby referenceThe
append_messagesmethod now takes immutable references tomessageandput_message_context, whereas previously they were mutable references. If these objects are modified within the method, they should be mutable references&mut.Similarly,
message_callbackis now passed by value. Passing it by reference&AMCmay improve efficiency ifAMCis not trivial to copy.
658-658: Acknowledge the correction of the method name toclean_swapped_mapThe method name has been corrected from
clean_swaped_maptoclean_swapped_map, fixing a typographical error. This improves code readability and consistency.
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| pub trait MappedFileRefactor { | ||
| fn get_file_name(&self) -> &CheetahString; | ||
| fn rename_to(&self, file_name: &CheetahString) -> bool; |
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🛠️ Refactor suggestion
Consider changing the receiver to &mut self for rename_to method
The rename_to method likely modifies the state of the object by renaming the file. Therefore, it should take &mut self instead of &self to reflect that it mutates the object.
| pub trait MappedFileRefactor { | ||
| fn get_file_name(&self) -> &CheetahString; | ||
| fn rename_to(&self, file_name: &CheetahString) -> bool; | ||
| fn get_file_size(&self) -> usize; |
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🛠️ Refactor suggestion
Reconsider changing get_file_size return type to usize
Using usize for file sizes may lead to portability issues on 32-bit systems, where usize is 32 bits. If file sizes can exceed 4GB, it's safer to use u64 to prevent potential overflows and ensure consistency across different platforms.
| fn init( | ||
| &self, | ||
| file_name: &str, | ||
| file_size: usize, | ||
| transient_store_pool: &TransientStorePool, | ||
| ) -> io::Result<()>; |
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🛠️ Refactor suggestion
Review the use of &self in the init method
The init method is expected to initialize the object's state, which typically requires mutable access. Consider changing the receiver to &mut self. Alternatively, if initialization happens during creation, making init an associated function without a receiver might be more appropriate.
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #2191 +/- ##
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Coverage 28.75% 28.75%
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Files 498 498
Lines 71059 71059
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Hits 20430 20430
Misses 50629 50629 ☔ View full report in Codecov by Sentry. |
Which Issue(s) This PR Fixes(Closes)
Fixes #2190
Brief Description
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Summary by CodeRabbit
MappedFileRefactortrait with significant improvements to method signatures