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J. Nick Koston
ce6332e6c3
The pre-sleep scan of all monitored sockets was added to preserve select() semantics by checking for pending data before sleeping. However, this is unnecessary with the FreeRTOS task notification approach: - xTaskNotifyGive from the lwip callback persists until consumed by ulTaskNotifyTake, so notifications received while the task is running (not sleeping) are not lost. - The only case the scan caught was intentionally undrained sockets (e.g., API's MAX_MESSAGES_PER_LOOP=5 throttle). Adding up to 16ms (loop_interval) latency before re-checking undrained data is the desired behavior — waking immediately would defeat the purpose of the throttle which exists to let other components run. This removes N volatile cross-core reads (one per monitored socket) from every loop iteration.
