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chrislu
d00308399d
Fixes a critical data race where resetVidMap() was writing to the vidMap pointer while other methods were reading it concurrently without synchronization. Changes: - Removed embedded *vidMap from MasterClient - Added vidMapLock (sync.RWMutex) to protect vidMap pointer access - Created safe accessor methods (GetLocations, GetDataCenter, etc.) - Updated all direct vidMap accesses to use thread-safe methods - Updated resetVidMap() to acquire write lock during pointer swap The vidMap already has internal locking for its operations, but this fix protects the vidMap pointer itself from concurrent read/write races. Verified with: go test -race ./weed/wdclient/... Impact: - Prevents potential panics from concurrent pointer access - No performance impact - uses RWMutex for read-heavy workloads - Maintains backward compatibility through wrapper methods