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Peter Hutterer 86f19a0978 lua: install a timeout hook before any pcalls to prevent infinite loops
If a lua pcall takes longer than one second, kill the plugin.

How often to call the timeout handler is a trade-off but we err on the
side of "possibly too high" since the overwhelmingly vast majority of
plugins will never trigger it anyway.

Gemini suggests that Lua 5.4 can do ~500k ops per second for string
concat (the slowest listed), Claude suggests 1 to 10 million ops per
second. The test in this patch on my 4y old cheap desktop runs the
timeout hook roughly every 37ms. Any normal plugin will be well and
truly done with its work by then.

Closes: #1245
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1416>
2026-01-27 00:02:15 +00:00
.gitlab/issue_templates gitlab: make the bug template the default template 2023-11-23 09:53:09 +10:00
.gitlab-ci CI: rebuild to pick up newer libwacom on Fedora 43 2026-01-14 09:27:28 +10:00
completion/zsh Add a public plugin system to libinput 2025-08-01 15:38:39 +10:00
doc quirks: normalize dmi matches 2026-01-12 03:49:00 +01:00
include include: sync headers with kernel 6.18 2025-12-01 21:39:11 +00:00
plugins plugin: add an example for controlling a mouse with a tablet 2026-01-21 08:44:13 +00:00
quirks quirks: Add quirk for Gigabyte Aorus 15BKF keyboard 2026-01-22 15:59:42 +04:00
src lua: install a timeout hook before any pcalls to prevent infinite loops 2026-01-27 00:02:15 +00:00
test lua: install a timeout hook before any pcalls to prevent infinite loops 2026-01-27 00:02:15 +00:00
tools Add libinput_tablet_tool_get_name() for the tool's specific name 2026-01-14 16:44:01 +10:00
udev meson.build: change from config.set10() and #if to config.set() and #ifdef 2025-07-28 12:04:09 +10:00
.clang-format clang-format: add litest_with_logcapture to foreach macros 2025-08-01 04:02:56 +00:00
.clang-format-ignore Add a clang-format file for consistent code formatting 2025-07-01 16:42:44 +10:00
.clang-tidy clang-tidy: fix WarningAsErrors option to actually work 2025-08-11 15:27:35 +10:00
.clang-tidy-ignore Add a clang-tidy file 2025-04-07 08:43:36 +00:00
.dir-locals.el indentation: add .dir-locals.el for emacs 2018-02-26 18:44:00 +10:00
.editorconfig editorconfig: add settings for sym files 2024-11-04 10:31:30 +00:00
.git-blame-ignore-revs git: add git-blame-ignore-revs to ignore the clang-format commits 2025-07-02 12:43:13 +10:00
.gitignore gitignore: ignore gnuplot files 2018-05-10 16:25:40 +10:00
.gitlab-ci.yml CI: rebuild to pick up newer libwacom on Fedora 43 2026-01-14 09:27:28 +10:00
.pre-commit-config.yaml pre-commit: update the name for the ruff check 2025-07-15 16:24:27 +10:00
.triage-policies.yml triage-policies: add a bugbot hook for re-closing a bug 2025-10-13 06:21:26 +00:00
.vimdir Add .vimdir for libinput-specific settings 2015-05-25 09:17:29 +10:00
CODING_STYLE.md Drop the Signed-off-by requirement 2023-07-21 09:08:46 +10:00
CONTRIBUTING.md CONTRIBUTING: Add CONTRIBUTING.md 2024-02-28 17:07:45 +01:00
COPYING Change various references to the master branch to main 2021-04-29 01:31:03 +00:00
meson.build meson: revamp the debug build detection for the builddir lookup 2026-01-10 10:39:21 +00:00
meson_options.txt Revert "lua: drop compatibility to 5.1 to allow for luajit" 2025-11-18 01:46:53 +00:00
README.md Change various references to the master branch to main 2021-04-29 01:31:03 +00:00

libinput

libinput is a library that provides a full input stack for display servers and other applications that need to handle input devices provided by the kernel.

libinput provides device detection, event handling and abstraction to minimize the amount of custom input code the user of libinput needs to provide the common set of functionality that users expect. Input event processing includes scaling touch coordinates, generating relative pointer events from touchpads, pointer acceleration, etc.

User documentation

Documentation explaining features available in libinput is available here.

This includes the FAQ and the instructions on reporting bugs.

Source code

The source code of libinput can be found at: https://gitlab.freedesktop.org/libinput/libinput

For a list of current and past releases visit: https://www.freedesktop.org/wiki/Software/libinput/

Build instructions: https://wayland.freedesktop.org/libinput/doc/latest/building.html

Reporting Bugs

Bugs can be filed on freedesktop.org GitLab: https://gitlab.freedesktop.org/libinput/libinput/issues/

Where possible, please provide the libinput record output of the input device and/or the event sequence in question.

See https://wayland.freedesktop.org/libinput/doc/latest/reporting-bugs.html for more info.

Documentation

Examples of how to use libinput are the debugging tools in the libinput repository. Developers are encouraged to look at those tools for a real-world (yet simple) example on how to use libinput.

License

libinput is licensed under the MIT license.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: [...]

See the COPYING file for the full license information.

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