-
Notifications
You must be signed in to change notification settings - Fork 15
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
2 changed files
with
56 additions
and
2 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,54 @@ | ||
# Crumbles | ||
|
||
[![Repository](https://img.shields.io/badge/github-crumbles-blueviolet?logo=github)](https://github.com/dusk-network/piecrust/tree/main/crumbles) | ||
![Build Status](https://github.com/dusk-network/piecrust/workflows/build/badge.svg) | ||
[![Documentation](https://img.shields.io/badge/docs-crumbles-blue?logo=rust)](https://docs.rs/crumbles) | ||
|
||
Crumbles is a Rust library designed for creating and managing copy-on-write memory-mapped regions. This allows for efficient memory handling by tracking changes at page level. It's particularly suitable for scenarios where memory snapshots and reverting to previous states are required. | ||
|
||
## Usage | ||
|
||
The core fuctionality of Crumbles is provided by the `Mmap` struct. This struct offers methods to manage memory regions, create snapshots and revert/apply changes. | ||
|
||
Example use: | ||
|
||
```rust | ||
use crumbles::Mmap; | ||
use std::io; | ||
|
||
fn main() -> io::Result<()> { | ||
let mut mmap = Mmap::new(65536, 65536)?; | ||
|
||
// When first created, the mmap is not dirty. | ||
assert_eq!(mmap.dirty_pages().count(), 0); | ||
|
||
mmap[24] = 42; | ||
|
||
// After writing a single byte, the page it's on is dirty. | ||
assert_eq!(mmap.dirty_pages().count(), 1); | ||
|
||
Ok(()) | ||
} | ||
|
||
``` | ||
|
||
## Build and Test | ||
|
||
To build and test the crate you will need a | ||
[Rust](https://www.rust-lang.org/tools/install) toolchain. Use the following commands to run the tests: | ||
|
||
```sh | ||
cargo test | ||
``` | ||
|
||
## Release History | ||
|
||
To see the release history for this crate, please see the [CHANGELOG](./CHANGELOG.md) file. | ||
|
||
## License | ||
|
||
This code is licensed under the Mozilla Public License Version 2.0 (MPL-2.0). Please see the [LICENSE](./LICENSE) for further details. | ||
|
||
## Contribute | ||
|
||
If you want to contribute to this project, please check the [CONTRIBUTING](https://github.com/dusk-network/.github/blob/main/.github/CONTRIBUTING.md) file. |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters