Critical fixes to prevent goroutine leaks during application shutdown:
1. Sync Queue Processor:
- Changed StartCleanupTask() to return context.CancelFunc
- Modified to accept and watch cancellable context
- Added queue context/cancel to Handler struct
- Created StartBackgroundTasks() method for main handler instance
- Cancel queue processor during shutdown in StopScheduler()
2. Connection Manager:
- Modified StartCleanupTask() to use cancellable context
- Returns cancel function that can be called during shutdown
- Goroutine now properly exits when context is cancelled
3. Handler Lifecycle:
- Added StartBackgroundTasks() to Handler
- Only main handler instance starts background goroutines
- Temporary handler instances (library/sync routes) don't start tasks
- StopScheduler() now properly shuts down all background goroutines
4. Router Integration:
- Updated SetupRoutes to accept queueProcessor parameter
- Main scanner handler starts background tasks after creation
- Library and sync route handlers don't start duplicate tasks
Impact:
- Fixes 2 major goroutine leaks (queue processor + connection cleanup)
- Application now properly shuts down all goroutines on exit
- No more resource leaks from long-running goroutines
- Test added to detect future goroutine regressions
Test: TestGoroutineCleanup verifies background services can be stopped.
Add createJWTMiddleware helper that sets database.Users object in context,
matching the original main.go JWT middleware behavior. This fixes
'authentication context error' panics in handlers that call
MustGetAuthenticatedUser.
Changes:
- Add createJWTMiddleware() in router.go
- Update all route files to use the helper
- Set user claims AND database.Users object in context