| commit | dcaa0013b425882aa71cfb1a5b350d67b6717608 | [log] [tgz] |
|---|---|---|
| author | Andy Green <andy@warmcat.com> | Wed Jun 30 04:58:25 2021 +0100 |
| committer | Andy Green <andy@warmcat.com> | Sat Aug 21 17:44:40 2021 +0100 |
| tree | adbc57c7c795b23dc97669dc5e6bdf5f26a2635d | |
| parent | b31c5d6ffe0b80811f3348a8a51b508d757c0f32 [diff] |
lecp: add CBOR stream parser LECP like JSON LEJP This provides very memory-efficient CBOR stream parsing and writing. The parser converts pieces of CBOR into callbacks that define the structure and collate string and blobs into buffer chunks for extensible and easy access. It is fragementation-safe and does not need all the CBOR in the same place at one time, chunks of CBOR are parsed and discarded as provided. It does not allocate and just needs a few hundred bytes of stack for even huge CBOR objects. Huge strings and blobs are handled without needing memory to hold them atomically. Includes ./minimal-examples/api-tests/api-test-lecp that unit tests it against 82 official example CBORs and 26 additional test vectors from COSE (just checking the CBOR parsing). The writing apis allow printf style semantics with a variety of CBOR-aware %-formats. The apis write into a context that manages output buffer usage, if the output buffer fills, then the apis return with an AGAIN code that lets you issue and reset the output buffer and repeat the api all to issue more output. The subsequent calls can occur much later or from a different function context, so this is perfect for WRITEABLE-mediated output from the network parts of lws. See ./READMEs/README.cbor-lecp.md
Libwebsockets is a simple-to-use, MIT-license, pure C library providing client and server for http/1, http/2, websockets, MQTT and other protocols in a security-minded, lightweight, configurable, scalable and flexible way. It's easy to build and cross-build via cmake and is suitable for tasks from embedded RTOS through mass cloud serving.
80+ independent minimal examples for various scenarios, CC0-licensed (public domain) for cut-and-paste, allow you to get started quickly.
There are a lot of READMEs on a variety of topics.
We do a huge amount of CI testing per push, currently 495 builds on 27 platforms.
See the changelog
This is the libwebsockets C library for lightweight websocket clients and servers. For support, visit
and consider joining the project mailing list at
https://libwebsockets.org/mailman/listinfo/libwebsockets
You can get the latest version of the library from git:
Doxygen API docs for development: https://libwebsockets.org/lws-api-doc-main/html/index.html