Jon Shallow

No worries. Yes, lwipopts.h now sits under the config/ directory and the `-iquote`. compiler option updated to `-iquote./config` in Makefile. Still trying to see why there is a issue of...

I am not able to reproduce the issue you are seeing where the sendqueue entry is not removed on receiving an ACK after re-transmits.

Thanks for tracking this down. I assume that you are running out of PDUs (struct that describe the state of the PDU data) as opposed to to the `pbuf` that...

I assume that you have read [coap_observe(3)](https://libcoap.net/doc/reference/develop/man_coap_observe.html). All this logic is based on [RFC7641](https://datatracker.ietf.org/doc/html/rfc7641). Calling `coap_resource_notify_observers()` from within your server application will cause all client observers for that resource to...

coap_resource_notify_observers() will at the next call to coap_io_process() cause a pseudo request (a copy of the PDU used by the client to register the request) to call the appropriate request...

> Do you means that call coap_resource_notify_observers() before call coap_io_process()? and then after coap_io_process() all > the obs will be notified; at this time resource can reload new value for...

@gli-spirent For the CoAP server in the develop branch, epoll support is now available, the accessible resources (urls) are hashed and any existing session lookup is now hashed to handle...

Thanks for doing the code review. I have updated and pushed the code to better handle the usage of `fail_body`, trigger an event and return 5.00 to the application.

This is expected to be merged after further testing.

libcoap LwIP support has been re-written in PR https://github.com/obgm/libcoap/pull/884, and so this should no longer be an issue.