// in src/allocator.rs use x86_64::{ structures::paging::{ mapper::MapToError, FrameAllocator, Mapper, Page, PageTableFlags, Size4KiB, }, VirtAddr, }; pub fn init_heap( mapper: &mut impl Mapper<Size4KiB>, frame_allocator: &mut impl FrameAllocator<Size4KiB>, ) -> Result<(), M...
len()), Poll::Pending => Poll::Pending, } } } fn string_len(string: impl Future<Output = String>) -> impl Future<Output = usize> { StringLen { inner_future: string, } } // Usage fn file_len() -> impl Future<Output = usize> { let file_content_future = async_read_file("f...
The inode needs to have a way of pointing to the data blocks that assemble the file. The simplest way is to havedirect pointers. In this case, each pointer points to a block that has some of the file data. The problem is that large files; where the size exceeds the number of direct...
You are viewing the a post of the first edition of “Writing an OS in Rust”, which is no longer updated. You can find the second edition here. In the previous posts we created a frame allocator and a page table module. Now we are ready to create a kernel heap and a memory allocat...
It will support Rust’s formatting macros, too. This post uses recent unstable features, so you need an up-to-date nighly compiler. If you have any questions, problems, or suggestions please file an issue or create a comment at the bottom. The code from this post is also available on ...
To expose this code from Rust to Python, there are a couple of different approaches you could take. The simplest approach is to expose a C ABI from your Rust program: externcrate libc;externcrate cpp_demangle;uselibc::c_char;usestd::ffi::{CString,CStr};usestd::ptr;#[no_mangle]pubexte...
to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works,...
Start building fast and robust applications with the power of Rust by your sideAbout This Book·Get started with the language to build scalable and high performance applications·This book will help C#/C++ developers gain better performance and memory management·Discover the power of Rust when ...
I wasn’t interested in what he was selling, and I didn’t want to invite him in, but there I was, obviously doing nothing. Our ranch house was built into the slope, with wide steps to the verandah, and a raggedy circle of gravel down in front. I was alone on the property, ...
To use this with LALRPOP, we need to expose its API to the parser. It's pretty easy to do, but also somewhat magical, so pay close attention. Pick a convenient place in the grammar file (I chose the bottom) and insert an extern block: ...