* Add test for #4792: customSearchPath data race
This test demonstrates the data race on the customSearchPath slice when
accessed concurrently from multiple goroutines without synchronization.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Fix#4792: Add mutex protection for customSearchPath slice
The customSearchPath slice was being accessed concurrently from multiple
goroutines without synchronization, causing data races. This fix adds a
dedicated mutex (searchPathMutex) to protect all reads and writes to the
customSearchPath and searchPathPrefix fields.
Changes:
- Added searchPathMutex field to DbClient struct
- Initialize searchPathMutex in NewDbClient constructor
- Protected all customSearchPath writes in SetRequiredSessionSearchPath
- Protected all customSearchPath reads in GetRequiredSessionSearchPath
- Protected all customSearchPath reads in GetCustomSearchPath
- Fixed logging in ensureSessionSearchPath to use already-fetched value
- Updated test to initialize searchPathMutex for proper testing
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Co-Authored-By: Claude <noreply@anthropic.com>
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Co-authored-by: Claude <noreply@anthropic.com>
