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Matthew Flatt 449f01b55d Chez Scheme GC: simplify make parallel sweeper object exchange 
Make the exchange of objects by parallel sweepers --- which is needed
when an object being swept by one thread refers to an object owner by
another thread --- much simpler and slightly faster.

The original design of exchanging memory regions didn't really work
out, and it had degrenerated to essentially exchanging objects.
Explicitly exchanging objects instead of regions makes the GC simpler,
because received objects can be just added to the regular sweep stack,
and less additional space<->type correspondence is needed.
2020-10-12 18:00:27 -06:00
.github Fix yaml workflow syntax 2020-10-08 11:29:25 +02:00
pkgs expander: repair literal syntax in test position of if 2020-10-12 17:58:37 -06:00
racket Chez Scheme GC: simplify make parallel sweeper object exchange 2020-10-12 18:00:27 -06:00
.gitattributes Don't include git files in archives. 2010-05-12 01:46:05 -04:00
.gitignore Fix typo. 2019-06-21 12:32:37 -05:00
.lgtm.yml Fetch PB to start LGTM build 2020-08-07 12:17:17 +02:00
.mailmap Minor metadata changes. 2019-10-15 08:09:32 -04:00
.makefile cs: more OpenIndiana repairs 2020-10-12 09:17:47 -06:00
build.md fix typo 2020-08-20 18:39:33 -06:00
LICENSE Recent GMP is under LGPL v3. 2020-05-01 22:26:25 -04:00
Makefile cs: more OpenIndiana repairs 2020-10-12 09:17:47 -06:00
README.md Fix README 2020-09-06 09:03:42 -04:00

README.md

Racket is a general-purpose programming language and an ecosystem for language-oriented programming.

This repository holds the source code for the core of Racket plus some related packages. The rest of the Racket distribution source code is in other repositories, mostly under the Racket GitHub organization.

Quick Start

Pre-built versions of Racket for a variety of operating systems and architectures, as well as convenient source distributions are available at

https://download.racket-lang.org

Racket comes with extensive documentation, including several tutorials. You can read all of this documentation, as well as documentation for third-party packages at

https://docs.racket-lang.org

Building from Source

For information on building Racket from this repository, see the Build Guide.

Contributing

Contribute to Racket by submitting a pull request, joining the development mailing list, or visiting the IRC or Slack channels.

By making a contribution, you are agreeing that your contribution is licensed under the LGPLv3, Apache 2.0, and MIT licenses. Those licenses are available in this repository in the files racket/src/LICENSE-LGPL.txt, racket/src/LICENSE-APACHE.txt, and racket/src/LICENSE-MIT.txt.

See the Racket Build Guide for more guidance on contributing.

The Friendly Environment Policy contains guidelines on expected behavior within the Racket community.

License

Racket is free software; see LICENSE for more details.