espressif / idf-extra-components

Additional components for ESP-IDF, maintained by Espressif

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coap: Add in OSCORE support into the examples (IEC-59) #250

Closed mrdeep1 closed 10 months ago

mrdeep1 commented 11 months ago

Checklist

[ ] Component contains License
[ ] Component contains README.md
[ ] Component contains idf_component.yml file with url field defined
[ ] Component was added to upload job
[ ] Component was added to build job
[ ] Optional: Component contains unit tests
[ ] CI passing

Change description

Add in configurable OSCORE support. Support building when only IPv4 is available. Update to latest libcoap code (4.3.4).

hmalpani commented 11 months ago

Hello @mrdeep1 I have done some memory analysis on this PR.

Example	Version	Size (libcoap.a)	Peak Heap Usage
coap_client	after update	51377	30488
coap_client	before update	50519	29820
coap_server	after update	60278	Peak heap usage increases after every request
coap_server	before update	60036	Peak heap usage increases after every request

I suspect coap_server is leaking memory on every request from a client. Can you please check?

mrdeep1 commented 11 months ago

I suspect coap_server is leaking memory on every request from a client. Can you please check?

I have pushed a change to the coap server to include coap_context_set_max_idle_sessions(ctx, 20); which limits the number of idle server sessions to 20.

So now, for the first 20 requests from different (source_ip, source port} requests I would expect to see heap usage increasing, but not after that.