[ISSUE #1931]🚀Add PopRequest for rust #1932
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Actionable comments posted: 0
🧹 Nitpick comments (4)
rocketmq-broker/src/long_polling/pop_request.rs (4)
30-38: Consider renaming and pointer usage for clarity and performance.
• The field expired might be more clear as expiration_millis or something that indicates time units.
• Using Arc directly (instead of Arc<Box>) may remove one level of indirection.-pub struct PopRequest { - ... - message_filter: Arc<Box<dyn MessageFilter>>, -} +pub struct PopRequest { + ... + message_filter: Arc<dyn MessageFilter>, +}
62-65: Implement the “get_channel” method or handle unimplemented.
The method unconditionally panics. If it is not immediately needed, leave a TODO comment indicating the approach. Otherwise, provide an implementation to prevent runtime panics.
75-78: Avoid using a magic number in timeout logic.
Currently, the code subtracts 50 ms from expired. Consider extracting this value into a named constant (e.g., TIMEOUT_LEEWAY_MS) to convey intent clearly and reduce magic numbers.- now > (self.expired - 50) + const TIMEOUT_LEEWAY_MS: u64 = 50; + now > (self.expired - TIMEOUT_LEEWAY_MS)
80-84: Optional logging or debugging info on “complete” call.
When the atomic state changes from false to true, you might want to log or trace that the request has completed, aiding in troubleshooting or usage analytics.
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📒 Files selected for processing (2)
rocketmq-broker/src/long_polling.rs(1 hunks)rocketmq-broker/src/long_polling/pop_request.rs(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- rocketmq-broker/src/long_polling.rs
🔇 Additional comments (4)
rocketmq-broker/src/long_polling/pop_request.rs (4)
1-16: No issues with license header.
The standard ASF license header looks correct and is in line with project requirements.
99-119: Comparison and ordering implementation looks correct.
Your usage of PartialEq, Eq, PartialOrd, and Ord is coherent, primary sorting by expiration time and secondary sorting by operation ID. This is a sensible approach for managing the request priority queue.
121-129: Display trait is well-structured.
The Display output is concise and includes essential fields, facilitating debug logging without revealing sensitive data.
48-49: Verify the initial value of “COUNTER”.
Starting the counter at i64::MIN might lead to unexpected sorting or negative indexing. If not intentional, consider starting from 0 or i64::MIN / 2 to avoid potential overflows or negative ordering artifacts.
✅ Verification successful
Let me search for related code to understand the usage and implications of this counter.
Let me search for more context around the usage of this counter in the pop request implementation to understand its purpose.
Starting from i64::MIN is intentional and safe for this use case
The counter is used as a secondary sorting key in the Ord implementation for PopRequest, where it's combined with the expired timestamp. Starting from i64::MIN is actually beneficial here because:
- The counter is only used for tie-breaking in ordering when expired timestamps are equal
- The relative ordering of counter values is what matters, not their absolute values
- The implementation correctly handles overflow through wrapping behavior of
fetch_add
🏁 Scripts executed
The following scripts were executed for the analysis:
Error: No shell scripts found
Script:
#!/bin/bash
# Search for usages of COUNTER in the codebase
rg "COUNTER" -B 2 -A 2
# Search for any similar atomic counter patterns
ast-grep --pattern 'static $name: AtomicI64 = AtomicI64::new($val)'
Length of output: 1616
Script:
#!/bin/bash
# Get the full PopRequest implementation to understand counter usage
ast-grep --pattern 'struct PopRequest {
$$$
}'
# Get the surrounding context of the file
cat rocketmq-broker/src/long_polling/pop_request.rs
Length of output: 4055
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #1932 +/- ##
==========================================
- Coverage 28.53% 28.50% -0.03%
==========================================
Files 483 484 +1
Lines 67861 67924 +63
==========================================
Hits 19362 19362
- Misses 48499 48562 +63 ☔ View full report in Codecov by Sentry. |
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Which Issue(s) This PR Fixes(Closes)
Fixes #1931
Brief Description
How Did You Test This Change?
Summary by CodeRabbit
New Features
pop_requestwithin the long polling functionality.PopRequeststruct with methods for managing request data and state.Improvements
PopRequest.