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The systemd System and Service Manager
35,975 Commits 4 Branches 398 Tags 564 MiB
C 89.2%
Python 5.3%
Shell 4.1%
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Lennart Poettering f267719c38 fd-util: optimize fd_get_path() a bit 
journald calls fd_get_path() a lot (it probably shouldn't, there's some
room for improvement there, but I'll leave that for another time), hence
it's worth optimizing the call a bit, in particular as it's easy.

Previously we'd open the dir /proc/self/fd/ first, before reading the
symlink inside it. This means the whole function requires three system
calls: open(), readlinkat(), close(). The reason for doing it this way
is to distinguish the case when we see ENOENT because /proc is not
mounted and the case when the fd doesn't exist.

With this change we'll directly go for the readlink(), and only if that
fails do an access() to see if /proc is mounted at all.

This optimizes the common case (where the fd is valid and /proc
mounted), in favour of the uncommon case (where the fd doesn#t exist or
/proc is not mounted).
2018-10-25 21:37:14 +02:00
.github/ISSUE_TEMPLATE docs: move markdown docs from .github/ to docs/ 2018-09-08 13:39:03 -07:00
.mkosi mkosi: use Fedora 29 2018-10-18 16:27:21 +02:00
catalog core: implement per unit journal rate limiting 2018-10-18 09:56:20 +02:00
coccinelle tree-wide: CMP()ify all the things 2018-10-16 17:45:53 +02:00
docs Merge pull request #10415 from poettering/boot-loader-spec-tweaks 2018-10-22 15:15:45 +02:00
factory/etc factory: remove broken pam_limits 2014-07-30 15:21:54 +02:00
hwdb hwdb: add Aiptek Hyperpen 12000U (#10424) 2018-10-17 02:39:52 +09:00
man man: fix wording a bit on the cgroup accountings options (#10509) 2018-10-25 05:08:07 +09:00
modprobe.d Add SPDX license headers to various assorted files 2017-11-19 19:08:15 +01:00
network Drop my copyright headers 2018-06-14 13:03:20 +02:00
po po: update Turkish translation 2018-10-01 19:47:45 +02:00
presets Drop my copyright headers 2018-06-14 13:03:20 +02:00
rules Merge pull request #7411 from joergsteffens/tapechanger 2018-10-22 21:43:58 +02:00
shell-completion bash-completion: analyze: add timespan 2018-10-23 22:28:42 +09:00
src fd-util: optimize fd_get_path() a bit 2018-10-25 21:37:14 +02:00
sysctl.d Revert "sysctl.d: request ECN on both in and outgoing connections" 2018-08-20 09:37:41 +02:00
sysusers.d sysusers,tmpfiles: re-create systemd-network, systemd-resolve and systemd-timesync 2018-07-16 17:11:50 +02:00
test Merge pull request #10378 from poettering/json-fuzz-fix 2018-10-25 16:25:39 +02:00
tmpfiles.d sysusers,tmpfiles: re-create systemd-network, systemd-resolve and systemd-timesync 2018-07-16 17:11:50 +02:00
tools tests: add a fuzzer for the json parser and dumper 2018-10-10 10:13:30 +02:00
travis-ci travis: use Fedora 27 as a base image 2018-06-05 12:03:18 +03:00
units units: drop systemd-user-sessions.service ordering dep on systemd-journal-flush.service (#10502) 2018-10-25 04:41:02 +09:00
xorg login: avoid external process call 2018-01-12 18:02:57 +01:00
.dir-locals.el make dir-locals work again with emacs 26.1 2018-07-23 20:00:48 +02:00
.editorconfig editorconfig: add rule for meson.build files (#6671) 2017-08-28 16:37:23 +02:00
.gitattributes git: indicate that tabs are never OK in the systemd tree 2013-10-30 02:25:38 +01:00
.gitignore gitignore: add nspawn image lock and mkosi temporary files 2018-09-07 20:00:22 +02:00
.lgtm.yml LGTM: make LGTM.com use meson from pip 2018-07-24 01:37:47 +09:00
.mailmap update NEWS contributors list again 2018-06-20 13:32:57 +02:00
.travis.yml Merge pull request #9193 from keszybz/coverity 2018-06-14 09:59:58 +02:00
.vimrc vimrc: fix indentation logic for our docbook xml files 2016-04-29 12:23:34 +02:00
.ycm_extra_conf.py ycm: add doc string for all the functions in configuration file 2017-11-29 13:21:49 -07:00
configure build-sys: add basic support for ./configure && make && make install 2017-07-18 10:05:06 -04:00
LICENSE.GPL2 relicense to LGPLv2.1 (with exceptions) 2012-04-12 00:24:39 +02:00
LICENSE.LGPL2.1 licence: remove references to old FSF address 2012-12-17 11:41:31 +01:00
Makefile build-sys: Fix Makefile wrapper for install target (#6548) 2017-08-07 11:29:20 +02:00
meson_options.txt main: bump fs.nr_open + fs.max-file to their largest possible values 2018-10-17 14:40:39 +02:00
meson.build missing: support old linux/fou.h 2018-10-21 22:34:28 +09:00
mkosi.build mkosi: update the boot loader from our freshly built one 2018-10-16 16:44:34 +02:00
mkosi.default mkosi: create .mkosi directory 2016-10-06 11:53:58 -04:00
NEWS main: bump fs.nr_open + fs.max-file to their largest possible values 2018-10-17 14:40:39 +02:00
README resolved: basic OpenSSL support for DNS-over-TLS 2018-07-27 21:23:17 +01:00
README.md doc: Fix link to CONTRIBUTING.md (#10109) 2018-09-18 12:29:36 +09:00
TODO Merge pull request #10415 from poettering/boot-loader-spec-tweaks 2018-10-22 15:15:45 +02:00
zanata.xml po: add basic fedora.zanata.org configuration 2018-02-19 13:56:57 +01:00

README.md

systemd - System and Service Manager

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Details

General information about systemd can be found in the systemd Wiki.

Information about build requirements are provided in the README file.

Consult our NEWS file for information about what's new in the most recent systemd versions.

Please see the HACKING file for information how to hack on systemd and test your modifications.

Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.

When preparing patches for systemd, please follow our Coding Style Guidelines.

If you are looking for support, please contact our mailing list or join our IRC channel.

Stable branches with backported patches are available in the stable repo.