f615eef4ba
When the system supports it (as all Linux kernels ≥ 5.3 should), it’s preferable to use `pidfd_open()` and `waitid()` to be notified of child processes exiting or being signalled, rather than installing a default `SIGCHLD` handler. A default `SIGCHLD` handler is global, and can never interact well with other code (from the application or other libraries) which also wants to install a `SIGCHLD` handler. This use of `pidfd_open()` is racy (the PID may be reused between `g_child_watch_source_new()` being called and `pidfd_open()` being called), so it doesn’t improve behaviour there. For that, we’d need continuous use of pidfds throughout GLib, from fork/spawn time until here. See #1866 for that. The use of `waitid()` to get the process exit status could be expanded in future to also work for stopped or continued processes (as per #175) by adding `WSTOPPED | WCONTINUED` into the flags. That’s a behaviour change which is outside the strict scope of adding pidfd support, though. Signed-off-by: Philip Withnall <pwithnall@endlessos.org> Helps: #1866 Fixes: #2216 |
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|---|---|---|
| .gitlab-ci | ||
| .reuse | ||
| docs | ||
| fuzzing | ||
| gio | ||
| glib | ||
| gmodule | ||
| gobject | ||
| gthread | ||
| LICENSES | ||
| m4macros | ||
| po | ||
| subprojects | ||
| tests | ||
| tools | ||
| .clang-format | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .gitmodules | ||
| .lcovrc | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| glib.doap | ||
| HACKING | ||
| INSTALL.md | ||
| meson_options.txt | ||
| meson.build | ||
| msvc_recommended_pragmas.h | ||
| NEWS | ||
| README.md | ||
| README.win32.md | ||
| SECURITY.md | ||
GLib
GLib is the low-level core library that forms the basis for projects such as GTK and GNOME. It provides data structure handling for C, portability wrappers, and interfaces for such runtime functionality as an event loop, threads, dynamic loading, and an object system.
The official download locations are: https://download.gnome.org/sources/glib
The official web site is: https://www.gtk.org/
Installation
See the file 'INSTALL.md'
Supported versions
Only the most recent unstable and stable release series are supported. All older versions are not supported upstream and may contain bugs, some of which may be exploitable security vulnerabilities.
See SECURITY.md for more details.
Documentation
API documentation is available online for GLib for the:
Discussion
If you have a question about how to use GLib, seek help on GNOME’s Discourse
instance. Alternatively, ask a question
on StackOverflow and tag it glib.
Reporting bugs
Bugs should be reported to the GNOME issue tracking system. You will need to create an account for yourself. You may also submit bugs by e-mail (without an account) by e-mailing incoming+gnome-glib-658-issue-@gitlab.gnome.org, but this will give you a degraded experience.
Bugs are for reporting problems in GLib itself, not for asking questions about how to use it. To ask questions, use one of our discussion forums.
In bug reports please include:
- Information about your system. For instance:
- What operating system and version
- For Linux, what version of the C library
- And anything else you think is relevant.
- How to reproduce the bug.
- If you can reproduce it with one of the test programs that are built
in the
tests/subdirectory, that will be most convenient. Otherwise, please include a short test program that exhibits the behavior. As a last resort, you can also provide a pointer to a larger piece of software that can be downloaded.
- If you can reproduce it with one of the test programs that are built
in the
- If the bug was a crash, the exact text that was printed out when the crash occurred.
- Further information such as stack traces may be useful, but is not necessary.
Contributing to GLib
Please follow the contribution guide to know how to start contributing to GLib.
Patches should be submitted as merge requests to gitlab.gnome.org. If the patch fixes an existing issue, please refer to the issue in your commit message with the following notation (for issue 123):
Closes: #123
Otherwise, create a new merge request that introduces the change. Filing a separate issue is not required.
Default branch renamed to main
The default development branch of GLib has been renamed to main. To update
your local checkout, use:
git checkout master
git branch -m master main
git fetch
git branch --unset-upstream
git branch -u origin/main
git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/main