winapi-rs
rust-cpp
winapi-rs | rust-cpp | |
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14 | 11 | |
1,799 | 774 | |
- | - | |
0.0 | 3.6 | |
7 days ago | 2 days ago | |
Rust | Rust | |
Apache License 2.0 | Apache License 2.0 |
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winapi-rs
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Improving Interoperability Between Rust and C++
Vtables are pretty solved as well. I do a lot of Windows COM interop. Using the `windows` crate, vtables for COM interfaces are relegated to an implementation detail - instead you simply implement a (typically safe!) trait:
https://microsoft.github.io/windows-docs-rs/doc/windows/Win3...
Which can then be converted to a refcounted smart pointer:
https://microsoft.github.io/windows-docs-rs/doc/windows/Win3...
All driven by win32 sdk parsing and metadata.
But suppose we want to roll our own, because we tend to prefer `winapi` but it lacks definition. That's not too terrible either:
• https://github.com/MaulingMonkey/thindx-xaudio2/blob/master/...
• https://github.com/MaulingMonkey/thindx-xaudio2/blob/master/...
• https://github.com/MaulingMonkey/thindx-xaudio2/blob/master/...
I could more heavily lean on my macros ala `windows`, but I went the route of manual control for better doc comments, more explicit control of thread safety traits to match the existing C++ codebase, etc.
Is there some pointer casting? Yes. Is it annoying or likely to be what breaks? No. What is annoying?
• Stacked borrows and narrowing spatial provenance ( https://github.com/retep998/winapi-rs/issues/1025 - this can be "solved" by sticking to pointers ala `windows`, or by choosing a different provenance model like rustc might be doing?)
• Guarding against panics unwinding over an FFI boundary. This is at least being worked on, but remains unfinished ( https://rust-lang.github.io/rfcs/2945-c-unwind-abi.html )
• Edge case ABI weirdness specific to C++ methods ( https://devblogs.microsoft.com/oldnewthing/20220113-00/?p=10... , https://github.com/retep998/winapi-rs/issues/523 )
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Trying to compile rust library on Windows
Is winapi = { version = "0.3.9", features = ["winuser"] } in [target.'cfg(windows)'.dependencies]? All the missing symbols are functions in module winapi::um::wincrypt (see https://docs.rs/winapi/0.3.9/winapi/um/wincrypt/index.html#functions ) and the crate's Git repo at https://github.com/retep998/winapi-rs contains all the import libs and export defs for the corresponding DLLs in directory x86_64. As crypt32.dll ships with windows by default, I think this is all that would be needed for building on a windows PC.
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I seen people say that () is similar to void in C. But what is similar to void*?
The std library provides the type c_void for FFI, which is an enum with two variants. Some libraries have their own version, winapi for example defines c_void as an enum with no variants, making it identical to !. Finally, whenever the std needs a pointer with no particular type, they tend to reach for *const (), see ptr::to_raw_parts.
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Kernel Headers for Windows could soon make it into windows-rs
This would be a community driven project for now but I have high hopes considering we already had projects like winapi and Trantect/winapi-rs.
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More malware is shifting to Rust
Can't you choose to control what OS APIs you use if you use crates such as libc and winapi, or just directly using extern "C" { ... }/extern "system" { ... }, or even inline assembly for syscalls with llvm_asm! or asm!?
- Noob question - Can I see what my used cargo crate has inside?
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Building Outer Wonders, our Rust/SDL2 puzzle game, for Windows
Thank you! For SDL2 access, we're using custom bindings over the sdl2-sys crate, along with custom bindings for OpenGL and Vulkan access, and the winapi crate for Direct3D 11 access (as well as access to a few Windows APIs).
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Hey Rustaceans! Got an easy question? Ask here (23/2021)!
What is the difference between the winapi crate and the windows crate? Are they the same thing, and is one better than the other?
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The playable demo of Outer Wonders, our cute, colorful and Rust-powered puzzle game, is live on itch.io for Windows and Linux! Thank you Rust community for creating such awesome tools!
Turns out OpenGL and Vulkan sometimes behave weirdly on Windows machines (some OpenGL drivers use a huge amount of CPU power and create unexpected sync points; I also ran into this very weird driver crash while testing our Vulkan-powered version of Outer Wonders which is scary), so we implemented Direct3D 11 support using the winapi crate, which was much of a relief (D3D11 is an ideal rendering API when it comes to supporting Windows because it allows you target hardware with Windows versions going as far back as Vista, and from my experience, Direct3D drivers have a more consistent and reliable behavior). We didn't have to bring significant changes to our abstraction layer to add Direct3D 11 support.
- Official WinRT+Win32 Crate for Rust
rust-cpp
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Improving Interoperability Between Rust and C++
I am the current passive maintainer of the cpp crate: https://github.com/mystor/rust-cpp
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Best practices in creating a Rust API for a C++ library? Seeking advice from those who've done it before.
I would like to utilize OMPL's functionality in Rust code, so I want to call into OMPL C++ code somehow in Rust. I've seen two (non-mutually-exclusive) options so far: - rust-cpp, which allows you to write C++ code in Rust within the cpp!() macro. - cxx, which allows you to define both sides of the FFI boundary manually (as opposed to bindgen's automatic generation).
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Microsoft is rewriting core Windows libraries in Rust
There's also the cpp and cxx crates for doing C++/Rust interop, but they probably aren't appropriate to use in all cases. The C ABI is definitely the safest way to go unless you're really trying to marry Rust and C++ code bases, not just writing library bindings.
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Zork++ reaches the v0.5.0, ...where the project has been [completely] rewritten in Rust
https://github.com/mystor/rust-cpp <- not a transpiler, but almost as good
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US NGO Consumer Reports also reporting on C and C++ safety for product development.
Otherwise, C would never have achieved success in MS-DOS when all the stuff it was binding to at the time required blocks of inline assembly. (Crates like rust-cpp do exist, which allow "inline C++" in the same way that C++ allows inline assembly.)
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Choosing language for a new project
Actually, you can make inline C++ macro in Rust. Similar unholy monstrosities exist for inline python, inline C, inline SQL, inline HTML,...
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Tired of safe programming? Embed C directly in your Rust code
Here is a more serious project that allows to embed C++ code directly in your Rust code: https://github.com/mystor/rust-cpp
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Hello, youki! Faster container runtime is written in Rust
Don't underestimate the power of procedural macros: https://github.com/mystor/rust-cpp
- Use a CPP library from Rust
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Rust with C++?
Alright, thanks for all your ideas! I also found this mystor/rust-cpp, which apparently allows inline c++ as opposed to cxx. Having yet to try out any of these, I like the idea of inline code more. Thought now I feel I need to brush up my skills a bit more to try this stuff out.
What are some alternatives?
windows-rs - Rust for Windows
cxx - Safe interop between Rust and C++
rust-windows-dll - Macro for dynamically loading windows dll functions
derive_more - Some more derive(Trait) options
rand - A Rust library for random number generation.
rust-ctor - Module initialization/global constructor functions for Rust
core-foundation-rs - Rust bindings to Core Foundation and other low level libraries on Mac OS X and iOS
JavaCPP - The missing bridge between Java and native C++
rust-sdl2 - SDL2 bindings for Rust
rust-derive-builder - derive builder implementation for rust structs
sys-mount - High level FFI binding around the sys mount & umount2 calls, for Rust
rust-bindgen - Automatically generates Rust FFI bindings to C (and some C++) libraries.