#+title: ffi

 #+author: Richard Westhaver

 #+setupfile: ../../clean.theme

 #+OPTIONS: num:nil

 This doc is about the [[https://en.wikipedia.org/wiki/Foreign_function_interface][Foreign Function Interface]] (FFI) features of the

 =core=. 

 Besides accessing system, OS, and external libraries via binding code

 (dynamically in Lisp, statically in Rust), we also expose parts of the

 core in a C-compatible fashion. In Lisp, we use the SB-ALIEN interface

 to load (with dlopen) and call foreign symbols. In Rust we mostly use

 rust-bindgen and the built-in rustc features.

 * Libraries

 :PROPERTIES:

 :ID:       1eb797dc-d617-46cc-89e8-7b6103e526d2

 :END:

 The following binding libraries are provided with supporting

 code. There is some cross-over between the Lisp and Rust bindings

 depending on what library features we need and where. Some of the

 bindings are very minimal or for experimental-use only only.

 ** xkb

 :PROPERTIES:

 :ID:       79b3a686-efe9-411e-9d1e-358113622949

 :END:

 These bindings are actually directed at libxkbcommon instead of

 x11/xkb directly.

 *** xkbcommon

 :PROPERTIES:

 :ID:       9b9be592-1314-4926-940a-908ff4844e29

 :END:

 https://xkbcommon.org/doc/current/md_doc_2quick-guide.html

 ** rocksdb

 :PROPERTIES:

 :ID:       5a1fd665-b72a-4d62-af4c-4967825f69c6

 :END:

 [[https://github.com/facebook/rocksdb/wiki][RocksDB Wiki]]

 ** btrfs

 :PROPERTIES:

 :ID:       6b3dc423-0e1c-458d-9f8e-bf7456f9a048

 :END:

 The kernel headers btrfs and btrfs_tree will be wrapped at some point

 in addition to the userspace library (btrfsutil) documented below.

 *** btrfsutil

 :PROPERTIES:

 :ID:       7296995d-2b67-45ec-94d9-8fe23126a602

 :END:

 https://github.com/kdave/btrfs-progs

 ** uring

 :PROPERTIES:

 :ID:       c0750228-7ba8-445a-8790-ca0310cf0a7d

 :END:

 https://man.archlinux.org/man/io_uring.7.en

 ** zstd

 :PROPERTIES:

 :ID:       6dbfed55-0d07-4090-bc3b-ea9317d9bfe5

 :END:

 zstd compression bindings: https://github.com/facebook/zstd

 ** tree-sitter

 :PROPERTIES:

 :ID:       8527c382-ae65-4ad9-8f70-9ff5c6b152f0

 :END:

 bindings to tree-sitter parser generator and language libraries: https://github.com/tree-sitter/tree-sitter

 ** COMMENT blake3

 :PROPERTIES:

 :ID:       a1807b79-9811-49f0-9524-cbf5e88c1a66

 :END:

 temporary package for CL implementation of Blake3 SHA. Wraps C

 implementation (libblake3).

 ** COMMENT alpm

 :PROPERTIES:

 :ID:       cdd1682c-39b0-450e-a979-a5637cd15f43

 :END:

 https://man.archlinux.org/man/core/pacman/libalpm.3.en

 https://github.com/archlinux/alpm.rs/tree/382af70cdbff8e1f65c0bf8df79693786f44429c/alpm/examples

 ** COMMENT bqn

 :PROPERTIES:

 :ID:       5014f979-5b3a-4dfc-89e3-5a5a23462a29

 :END:

 These bindings are for libcbqn which can be build from CBQN:

 https://github.com/dzaima/CBQN

 ** COMMENT k

 :PROPERTIES:

 :ID:       47a60640-e387-4ac7-ab45-4f7a763e9611

 :END:

 https://codeberg.org/ngn/k

 bindings for ngn/k (libk).

 ** COMMENT nuklear

 :PROPERTIES:

 :ID:       e1e942b2-ebe0-48e9-bdd3-f4e27b7fed7c

 :END:

 ** COMMENT ssh2

 :PROPERTIES:

 :ID:       3c9e02d8-2c59-4ef5-8232-8422fd9e8ed3

 :END: