minimize ssl lock #6376
minimize ssl lock #6376
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WalkthroughThe PR refactors SSL socket certificate and CRL loading logic in Changes
Estimated code review effort🎯 4 (Complex) | ⏱️ ~60 minutes
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🧹 Nitpick comments (1)
crates/stdlib/src/ssl.rs (1)
2594-2599: Theexpect()is safe but could use a more precise comment.The
is_empty()check at line 2591-2593 guaranteespeer_certsis non-empty, making theexpect()unreachable. However, the chain.map().last().expect()could be simplified for clarity.Consider using
last()directly on the slice:- peer_certs - .iter() - .map(|c| c.as_ref().to_vec()) - .last() - .expect("is_empty checked above") + // peer_certs is guaranteed non-empty from check at line 2591 + peer_certs.last().unwrap().as_ref().to_vec()
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crates/stdlib/src/ssl.rs(7 hunks)
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**/*.rs
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**/*.rs: Follow the default rustfmt code style by runningcargo fmtto format Rust code
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Use the macro system (pyclass,pymodule,pyfunction, etc.) when implementing Python functionality in Rust
Files:
crates/stdlib/src/ssl.rs
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🔇 Additional comments (4)
crates/stdlib/src/ssl.rs (4)
1360-1431: Effective lock contention reduction.The refactoring correctly moves argument parsing and I/O operations (file reading, CRL parsing) outside the critical section. The pattern of:
- Parse all arguments first
- Perform CRL detection and loading separately
- Acquire write locks only for the final mutations
This is a sound approach that should significantly reduce lock hold time during certificate loading operations.
2717-2720: Good pattern to avoid nested lock contention.Cloning the
Arcbefore acquiring the inner mutex lock prevents holding the outerRwLockwhile waiting for theParkingMutex. This is a correct defensive pattern against potential deadlocks.
3548-3562: LGTM - Lock scope minimized correctly.The pattern of extracting DER bytes within a brief lock scope, then performing all parsing and dict conversion outside the lock is correct. The early returns for
Nonecases are properly handled within the block expression.
3586-3620: Consistent lock minimization pattern.Both
cipher()andversion()methods follow the same clean pattern: acquire lock briefly to extract the cipher suite, then release and process outside the lock. This is efficient sinceSupportedCipherSuiteis a simple copyable type.
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