Crate kwap_msg[][src]

Expand description

kwap_msg

Low-level representation of CoAP messages.

alloc vs no_alloc

kwap_msg implements CoAP messages as either backed by:

  • alloc: dynamically growable heap-allocated buffers
  • no_alloc: static stack-allocated buffers

alloc::Message can be much easier to use and performs comparably to no_alloc, however it does require: std or a global allocator

Performance

This crate uses criterion to measure performance of the heaped & heapless implementations in this crate as well as coap_lite::Packet.

In general, kwap_msg::alloc::Message is faster than coap_lite, which is much faster than no_alloc::Message.

Benchmarks:

Serializing to bytes

chart

Deserializing from bytes

chart

Modules

Identical to crate::no_alloc, but replaces all fixed-capacity stack-allocated buffers with dynamically growable structures.

Fixed capacity representations of raw CoAP messages.

Traits

Trait for converting a sequence of bytes into some data structure