kcgi
picostdlib
kcgi | picostdlib | |
---|---|---|
4 | 4 | |
268 | 61 | |
- | - | |
8.1 | 2.1 | |
about 1 month ago | 2 months ago | |
C | Nim | |
ISC License | MIT License |
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kcgi
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Newbie here, is it possible to use c for website backend ? And what framework?
You can use KCGI to use C or C++ as a FastCGI backend.
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New embedded programming language with C as a host language
I like the premise of embedded generating inline c. Kinda like php for c, rather than html
I'm not sure of custom BNF per generating command. I notice they're mostly order independent, which makes it a little easier to learn, but what's the advantage over c syntax? Is it roughly that pointers etc are impossible. Maybe a c-esque syntax would be more learnable
How does the existing syntax compose, i.e. can the user run away with writing tcl-style scripts
If you don't get a lot of feedback, I would guess it is inpart due to custom syntax being an entry barrier to understanding
I don't know, I think html is easy, so people want power with php. On the other hand c is powerful and hard, by the time I'm using that, does Vely's custom syntax give me more than a set of convenient c library calls... such as https://kristaps.bsd.lv/kcgi/
In any case, I like the apis, and I think the premise has legs
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Seriously, why is everyone doing the same thing nowadays?
It's not that hard, I use kcgi.
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BCHS: OpenBSD, C, httpd and SQLite web stack
The C library used (https://github.com/kristapsdz/kcgi) is portable and working on linux as well. Putting this behind nginx as fastcgi seems very well doable.
picostdlib
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Introduction to Embedded Systems Programming (Ada)
Heres the rp2040 wrapper someone else did: https://github.com/EmbeddedNim/picostdlib
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How to get clean simple C output?
As a workaround, you might be able to just get Nim to output the c sources (nim cc), and set up your own build system (make or whatever) to build and link it. This is the approach taken in https://github.com/EmbeddedNim/picostdlib. If you do this, you might want to pass in --cpu:m68k or some other supported 8-bit arch, though I'm not sure that --cpu is used for anything else than selection the C compiler exec and flags.
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New embedded programming language with C as a host language
C++ has decent industry acceptance in embedded nowadays, or at least that has been my impression.
After C++, rust is likely the most popular, quite a lot of effort has been put into running rust on embedded, see eg https://github.com/rust-embedded. However, once again to my understanding, industry acceptance is still highly marginal.
After that, there's a bunch of toy-ish efforts to run other languages. Zig, nim, python and javascript variants, etc. Usually anything that has C ABI compatibility should be possible to get up and running (without writing a compiler backend from scratch). I've had fun with some toy projects using nim for ARM cortex-M targets (https://github.com/EmbeddedNim/svd2nim, https://github.com/auxym/nim-on-samd21, https://github.com/EmbeddedNim/picostdlib).
Using Nim (and eg svd2nim to generate the equivalent of CMSIS headers for register access in pure nim), it would be entirely possible to write even the low level stuff (SPI drivers and whatnot) in 100% nim, with the same performance as C and better safety (better static type system and compile-time checks, etc). Runtime (eg overflow) checks and garbage collection are available (at the cost of some performance) but optional. See eg. a pretty basic higher-level API for GPIO access, that provides native performance, since the abstraction is implemented as macros (compile-time abstraction): https://github.com/auxym/nim-on-samd21/blob/master/src/port....
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Emulator of Original Dell Charger Using ATTINY85
To be clear: Ratel isn't my project, just something I'm following due to interest.
In the interest of shameless self promotion :), my own experimentations are :
https://github.com/EmbeddedNim/svd2nim
https://github.com/auxym/nim-on-samd21
And I've used and contributed to picostdlib (https://github.com/beef331/picostdlib), the rp2040 support library.
All just as a hobby, but it's interesting to learn that some companies are actually looking into Nim for firmware! Embedded seems like such a slow moving industry. I believe the author of Nesper and Nephyr also developed them for professional work.
What are some alternatives?
awesome-c - A curated list of awesome C frameworks, libraries, resources and other shiny things. Inspired by all the other awesome-... projects out there.
dell-charger-emulator - Emulator of original Dell charger using ATTINY85
bdwgc - The Boehm-Demers-Weiser conservative C/C++ Garbage Collector (bdwgc, also known as bdw-gc, boehm-gc, libgc)
svd2nim - Convert CMSIS ARM SVD files to nim register memory mappings
nimOnAVR - Nim language test program for Arduino UNO/Nano or its compatibles
nim-on-samd21 - Template for programming Microchip SAM D21 MCUs with Nim
SDS - Simple Dynamic Strings library for C
ThinkpadBattery - Open source Thinkpad T420 battery design
Git - Git Source Code Mirror - This is a publish-only repository but pull requests can be turned into patches to the mailing list via GitGitGadget (https://gitgitgadget.github.io/). Please follow Documentation/SubmittingPatches procedure for any of your improvements.
micronucleus - ATTiny usb bootloader with a strong emphasis on bootloader compactness.