HTTP Parser
sokol-samples
HTTP Parser | sokol-samples | |
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8 | 8 | |
6,115 | 563 | |
- | - | |
0.0 | 9.0 | |
almost 2 years ago | 2 days ago | |
C | C | |
MIT License | MIT License |
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HTTP Parser
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eBPF will help solve service mesh by getting rid of sidecars
It looks not too different from the majority of HTTP parsers out there written in C. Here is an example of NodeJS [0].
[0] https://github.com/nodejs/http-parser/blob/main/http_parser....
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C in Web Dev
NodeJS's HTTP parser used to be a handwritten C lib: http-parser
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The history and reasons behind CORS, and how to use it
Whoa, I didn't know that! But yeah, it seems like https://github.com/nodejs/http-parser is based on nginx. It now uses https://github.com/nodejs/llhttp but has some of the same legacy.
On the other hand, deno's HTTP stuff is built on top of Hyper, a Rust library https://github.com/hyperium/hyper
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A Universal I/O Abstraction for C++ (2020)
Boost.Beast has its own HTTP parser[0], during the development of which Vinnie Falco (the principle author of Beast) found many bugs/inconsistencies in Node.js's own parser[1]
[0] https://www.boost.org/doc/libs/develop/libs/beast/doc/html/b...
[1] https://github.com/nodejs/http-parser/issues?q=is%3Aissue+au...
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How to pass ownership of std::function object to function pointer?
For cases where it is necessary to pass local information to/from a callback, the http_parser object's data field can be used.
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Plain Text Protocols
Legacy HTTP/1.1 suffers a few issues, see the current RFC errata:
https://www.rfc-editor.org/errata_search.php?rfc=7230&rec_st...
There are issues particularly around how whitespace and obsolete line folding should be handled
https://github.com/nodejs/http-parser/issues?q=is%3Aissue+wh...
https://github.com/httpwg/http-core/issues/53
It's not as trivial as a few string splits.
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Looking for good http parser in C++ or C
There's picohttpparser and the one used in node.js: https://github.com/nodejs/http-parser
sokol-samples
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Zig cookbook: collection of simple Zig programs that demonstrate good practices
Zig currently doesn't allow chained designators and also doesn't allow to partially initialize arrays and fill up the rest of the array with default values.
E.g. the closest Zig equivalent to this C99 code:
https://github.com/floooh/sokol-samples/blob/b3bc55c4411fa03...
...is this:
https://github.com/floooh/sokol-zig/blob/a4b3c287fadd153a504...
...note how part of the initialization had to be moved out into "code".
There's a ticket about this here, but it's currently not high-priority:
https://github.com/ziglang/zig/issues/6068
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Building a Web Game in C with Raylib
This is a simple Pong-like I've written in Raylib compiled to WASM - https://wasm-stuff.netlify.app/pong
Source code is here: https://github.com/rrampage/skitter/tree/master/pong-raylib
It is fairly straightforward to get Raylib running in the browser. I used @flohofwoe's HTML shell file ( https://github.com/floooh/sokol-samples/blob/master/webpage/... ).
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Learn WebGPU
PS: also if shader functions could be directly defined "inline" in regular CPU code (and behind a special function pointer type), there would be no need for string literal shenanigans like this:
https://github.com/floooh/sokol-samples/blob/3f10c1a0620cec9...
(and shader compilation would happen during the regular build and would also generate regular compiler errors - with current toolchains that's only possible with a lot of build system magic)
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Next C compiler is a D compiler: Introducing DMD's ImportC
I think something along those lines (rarely used...) was also given by the C++ Committee as justification why so much of the C99 designated init feature set was left out of C++20. But in reality, all C99 designated-init 'sub-features' complement each other nicely once you start using them. It's a great way for building 'data-driven' APIs.
For instance check out this call to create a 3D-API pipeline-state-object in C99:
https://github.com/floooh/sokol-samples/blob/ad9047e228a8441...
- C in Web Dev
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Learning that you can use unions in C for grouping things into namespaces
I'm using anonymous nested structs extensively for grouping struct items, but I consider the extra field name a feature, not something that should be hidden:
https://github.com/floooh/sokol-samples/blob/bfb30ea00b5948f...
(also note the 'inplace initialization' which follows the state struct definition using C99's designated initialization)
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Nuklear: A cross-platform GUI library in C
It's an STB-style single-file library, which means the implementation is in a separate ifdef-block from the interface declarations, this allows to compile the implemenentation in a separate source file (which can be a C file), and be used in different source files (which can be C++ files).
For example (using stb_image.h):
https://github.com/floooh/sokol-samples/blob/master/libs/stb...
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Making Win32 APIs More Accessible to More Languages
C99 has made all that a lot easier, you can setup, initialize a struct and call the function taking a pointer to that struct all in one call:
https://github.com/floooh/sokol-samples/blob/89f5825ab5d3690...
The Win32 window system functions and D3D11 are actually very convenient to work with in C99, better than C++ actually.
What are some alternatives?
llhttp - Port of http_parser to llparse
sokol-zig - Zig bindings for the sokol headers (https://github.com/floooh/sokol)
C++ Format - A modern formatting library
NanoGUI - Minimalistic GUI library for OpenGL
American Fuzzy Lop - american fuzzy lop - a security-oriented fuzzer
imgui - Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
semver.c - Semantic version in ANSI C
libev - Full-featured high-performance event loop loosely modelled after libevent
PHP CPP - Library to build PHP extensions with C++
nuklear - A single-header ANSI C immediate mode cross-platform GUI library
stb - stb single-file public domain libraries for C/C++
ArrayFire - ArrayFire: a general purpose GPU library.