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Azure-Samples / iot-middleware-freertos-samples

This repo has samples for dev kits using the Azure IoT middleware for FreeRTOS
MIT License
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Update aziotkit and esp32 transport usage #305

Closed danewalton closed 1 year ago

danewalton commented 1 year ago

The aziotkit and esp32 samples both use the non "list" usage of the transports, which is an issue for ESP IDF v.4.4+. The ADU sample already uses the list idea. Update the other samples to conform.

Example:

ewertons commented 1 year ago

@danewalton I see that both aziotkit and esp32 samples are working fine with ESP IDF v4.4.3. What is the issue of not having xTransportList in transport_tls_esp32.c for these samples? Also, when I search for xTransportList in the adu sample, I see it created, populated, destroyed but never actually accessed. Could you help me understand where it is used? Thanks.

danewalton commented 1 year ago

Yes this ultimately becomes a problem when there is an error on the transport. The error handling was changed with the new "list" way of using transports, and it was crashing when trying to access an error value which hadn't been malloc'd by the "list" struct (if I remember correctly). We don't access the list directly, but it's used within ESP TLS.