A Rust library implementing safe, lightweight context switches, without relying on kernel services

Go to file

edef daece1a8d3 Registers::{swap2 => swap}, to match Context::swap		2016-04-03 19:56:15 +02:00
.travis/docs	run on Travis CI container infra	2015-04-19 15:40:43 -04:00
benches	get rid of the old Context::swap	2016-04-03 19:55:25 +02:00
examples	get rid of the old Context::swap	2016-04-03 19:55:25 +02:00
src	Registers::{swap2 => swap}, to match Context::swap	2016-04-03 19:56:15 +02:00
.editorconfig	add .editorconfig	2015-04-16 04:17:55 -04:00
.gitignore	initial commit	2014-12-23 04:27:28 +01:00
.travis.yml	run Cargo in verbose mode on Travis CI	2016-03-16 09:09:36 +01:00
Cargo.toml	void: 0.0.5 -> 1.0.0	2016-04-03 08:54:56 +02:00
LICENSE	remove copyright years	2016-03-22 08:25:23 +01:00
README.md	update benchmarks: 2.5ns on x86_64!	2016-04-03 12:04:46 +02:00

README.md

libfringe

libfringe is a low-level green threading library for Rust. It's usable in freestanding environments (like kernels), but it can also provide an easy-to-use stack allocator using your operating system's memory mapping facility.

Performance

libfringe does context switches in 2.5ns flat on x86_64!

test swap ... bench:         5 ns/iter (+/- 1)

…and on x86:

test swap ... bench:         5 ns/iter (+/- 1)

Limitations

libfringe currently doesn't work on anything but x86 and x86_64, and is untested on anything but Linux.

Installation

libfringe is a Cargo package. It's not stable software yet, so you'll have to use it as a git dependency. Add this to your Cargo.toml:

[dependencies.fringe]
git = "https://github.com/edef1c/libfringe.git"

Feature flags

libfringe provides several optional features through Cargo's feature flags. Currently, all of them are enabled by default.

`valgrind`

Valgrind integration. libfringe will register context stacks with Valgrind.

`os`

Built-in stack allocator using your your operating system's anonymous memory mapping facility. Currently only available for Unix.