#memcmp #memmem #memchr

memx-cdy

The fast memory functions like a libc memcmp(), memchr(), memmem(), memcpy(), memset()

13 releases

0.1.13 Oct 9, 2023
0.1.12 Feb 13, 2023
0.1.11 Jan 31, 2023
0.1.8 Jun 13, 2022
0.1.3 Jun 24, 2021

#569 in Algorithms

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843 downloads per month
Used in 13 crates (12 directly)

MIT/Apache

15KB
166 lines

memx-cdy

crate Docs Rust Version Apache2/MIT licensed Test ubu Test mac Test win

c interface of memx: the fast memory functions like libc memcmp(), memchr(), memmem(), memcpy(), memset()

Features

  • Faster os libc and musl libc
  • Replace dynamic os libc using LD_PRELOAD

Quick install

  1. You can install this into cargo lib path:
cargo build --release
mkdir -p $HOME/.cargo/lib
cp -a target/release/libmemx_cdy.so target/release/libmemx_cdy.a $HOME/.cargo/lib
  1. You can build debian package:
cargo deb

and install .deb into your local repository of debian package.

Usage

Easy to use, LD_PRELOAD.

  1. usecase: cargo install
$ LD_PRELOAD=~/.cargo/lib/libmemx_cdy.so command

or

$ export LD_PRELOAD=~/.cargo/lib/libmemx_cdy.so
  1. usecase: debian package
$ LD_PRELOAD=/usr/lib/libmemx_cdy.so.0.1 command

or

$ export LD_PRELOAD=/usr/lib/libmemx_cdy.so.0.1

2-step of using on your rust source code

  1. add to dependences of Cargo.toml:
[dependencies]
memx-cdy = "0.1"
  1. call memx_init() in main function
fn main() {
    memx_cdy::memx_init();
    //
    // follow your code
}

Changelogs

This crate's changelog here.

References

  • memx - rust crate for the fast mem lib

The memx benchmark results

License

This project is licensed under either of

at your option.

Dependencies

~1MB
~23K SLoC