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Systemd/src/basic/def.h

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use #pragma once instead of foo*foo #define guards #pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported in other compilers. I've been using and maintaining (rebasing) this patch for a while now, as it annoyed me to see #ifndef fooblahfoo, etc all over the place, almost arrogant about the annoyance of having to define all these names to perform a commen but neccicary functionality, when a completely superior alternative exists. I havn't sent it till now, cause its kindof a style change, and it is bad voodoo to mess with style that has been established by more established editors. So feel free to lambast me as a crazy bafoon. v2 - preserve externally used headers
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#pragma once
def: centralize definition of default timeout in one place
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/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
relicense to LGPLv2.1 (with exceptions) We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.
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under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
relicense to LGPLv2.1 (with exceptions) We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.
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Lesser General Public License for more details.
def: centralize definition of default timeout in one place
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relicense to LGPLv2.1 (with exceptions) We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.
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You should have received a copy of the GNU Lesser General Public License
def: centralize definition of default timeout in one place
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "util.h"
def: lower default timeout to 90s Almost everybody found 3min too long, so lower it again
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#define DEFAULT_TIMEOUT_USEC (90*USEC_PER_SEC)
def: centralize definition of default timeout in one place
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#define DEFAULT_RESTART_USEC (100*USEC_PER_MSEC)
core: make systemd.confirm_spawn=1 actually work This adds a timeout if the TTY cannot be acquired and makes sure we always output the question to the console, never to the TTY of the respective service.
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#define DEFAULT_CONFIRM_USEC (30*USEC_PER_SEC)
def: centralize definition of default timeout in one place
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manager: configurable StartLimit default values https://bugzilla.redhat.com/show_bug.cgi?id=821723
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#define DEFAULT_START_LIMIT_INTERVAL (10*USEC_PER_SEC)
#define DEFAULT_START_LIMIT_BURST 5
def: lower exit-on-idle time
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/* The default time after which exit-on-idle services exit. This
* should be kept lower than the watchdog timeout, because otherwise
* the watchdog pings will keep the loop busy. */
#define DEFAULT_EXIT_USEC (30*USEC_PER_SEC)
logger,initctl: use global exit timeout
2011-04-14 02:32:42 +02:00
core: bump net.unix.max_dgram_qlen really early during boot Only that way it actually has an effect on all our sockets, including $NOTIFY_SOCKET.
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/* The default value for the net.unix.max_dgram_qlen sysctl */
#define DEFAULT_UNIX_MAX_DGRAM_QLEN 512UL
core: make SYSTEMD_CGROUP_CONTROLLER a special string SYSTEMD_CGROUP_CONTROLLER is currently defined as "name=systemd" which cgroup utility functions interpret as a named cgroup hierarchy with the specified named. With the planned cgroup hybrid mode changes, SYSTEMD_CGROUP_CONTROLLER would map to different hierarchy names. This patch makes SYSTEMD_CGROUP_CONTROLLER a special string "_systemd" which is substituted to "name=systemd" by the cgroup utility functions. This allows the callers to address the systemd hierarchy without actually specifying the hierarchy name allowing the cgroup utility functions to map it to whatever is appropriate. Note that SYSTEMD_CGROUP_CONTROLLER was already special on full unified cgroup hierarchy even before this patch.
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#define SYSTEMD_CGROUP_CONTROLLER_LEGACY "name=systemd"
core: make hybrid cgroup unified mode keep compat /sys/fs/cgroup/systemd hierarchy Currently the hybrid mode mounts cgroup v2 on /sys/fs/cgroup instead of the v1 name=systemd hierarchy. While this works fine for systemd itself, it breaks tools which expect cgroup v1 hierarchy on /sys/fs/cgroup/systemd. This patch updates the hybrid mode so that it mounts v2 hierarchy on /sys/fs/cgroup/unified and keeps v1 "name=systemd" hierarchy on /sys/fs/cgroup/systemd for compatibility. systemd itself doesn't depend on the "name=systemd" hierarchy at all. All operations take place on the v2 hierarchy as before but the v1 hierarchy is kept in sync so that any tools which expect it to be there can keep doing so. This allows systemd to take advantage of cgroup v2 process management without requiring other tools to be aware of the hybrid mode. The hybrid mode is implemented by mapping the special systemd controller to /sys/fs/cgroup/unified and making the basic cgroup utility operations - cg_attach(), cg_create(), cg_rmdir() and cg_trim() - also operate on the /sys/fs/cgroup/systemd hierarchy whenever the cgroup2 hierarchy is updated. While a bit messy, this will allow dropping complications from using cgroup v1 for process management a lot sooner than otherwise possible which should make it a net gain in terms of maintainability. v2: Fixed !cgns breakage reported by @evverx and renamed the unified mount point to /sys/fs/cgroup/unified as suggested by @brauner. v3: chown the compat hierarchy too on delegation. Suggested by @evverx. v4: [zj] - drop the change to default, full "legacy" is still the default.
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#define SYSTEMD_CGROUP_CONTROLLER_HYBRID "name=unified"
core: make SYSTEMD_CGROUP_CONTROLLER a special string SYSTEMD_CGROUP_CONTROLLER is currently defined as "name=systemd" which cgroup utility functions interpret as a named cgroup hierarchy with the specified named. With the planned cgroup hybrid mode changes, SYSTEMD_CGROUP_CONTROLLER would map to different hierarchy names. This patch makes SYSTEMD_CGROUP_CONTROLLER a special string "_systemd" which is substituted to "name=systemd" by the cgroup utility functions. This allows the callers to address the systemd hierarchy without actually specifying the hierarchy name allowing the cgroup utility functions to map it to whatever is appropriate. Note that SYSTEMD_CGROUP_CONTROLLER was already special on full unified cgroup hierarchy even before this patch.
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#define SYSTEMD_CGROUP_CONTROLLER "_systemd"
def: centralize definition of default timeout in one place
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#define SIGNALS_CRASH_HANDLER SIGSEGV,SIGILL,SIGFPE,SIGBUS,SIGQUIT,SIGABRT
manager: Do not handle SIGKILL since we can not This is a minor fix because it's not a major issue, this fix just avoid to get EINVAL error from sigaction(2). There are two signals can not handled at user space, SIGKILL and SIGSTOP even we're PID 1, trying to handle these two signals will get EINVAL error. There are two kinds of systemd instance, running as system manager or user session manager, apparently, the latter is a general user space process which can not handle SIGKILL. The special pid 1 also can not do that refer to kernel/signal.c:do_sigaction(). However, pid 1 is unkillable because the kernel did attach SIGNAL_UNKILLABLE to it at system boot up, refer to init/main.c:start_kernel() --> rest_init() --> kernel_thread() --> kernel_init() --> init_post() current->signal->flags |= SIGNAL_UNKILLABLE
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#define SIGNALS_IGNORE SIGPIPE
Verify validity of session name when received from outside Only ASCII letters and digits are allowed.
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build-sys: use #if Y instead of #ifdef Y everywhere The advantage is that is the name is mispellt, cpp will warn us. $ git grep -Ee "conf.set\('(HAVE|ENABLE)_" -l|xargs sed -r -i "s/conf.set\('(HAVE|ENABLE)_/conf.set10('\1_/" $ git grep -Ee '#ifn?def (HAVE|ENABLE)' -l|xargs sed -r -i 's/#ifdef (HAVE|ENABLE)/#if \1/; s/#ifndef (HAVE|ENABLE)/#if ! \1/;' $ git grep -Ee 'if.*defined\(HAVE' -l|xargs sed -i -r 's/defined\((HAVE_[A-Z0-9_]*)\)/\1/g' $ git grep -Ee 'if.*defined\(ENABLE' -l|xargs sed -i -r 's/defined\((ENABLE_[A-Z0-9_]*)\)/\1/g' + manual changes to meson.build squash! build-sys: use #if Y instead of #ifdef Y everywhere v2: - fix incorrect setting of HAVE_LIBIDN2
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#if HAVE_SPLIT_USR
localed: match converted keymaps before legacy Before, X11 keymap fr-pc105-oss would be converted to fr, even though fr-oss exists. Now, if /usr/lib/kbd/keymaps/xkb/<layout>[-<variant>].map[.gz] exists, <layout>[-<variant>] will be used as the console keymap, falling back to the legacy mappings otherwise. % sudo localectl set-x11-keymap pl pc105 % localectl System Locale: LANG=en_US.UTF-8 VC Keymap: pl (was pl2 before) X11 Layout: pl X11 Model: pc105 % sudo localectl set-x11-keymap fr pc105 oss % localectl System Locale: LANG=en_US.UTF-8 VC Keymap: fr-oss (was fr before) X11 Layout: fr X11 Model: pc105 X11 Variant: oss % sudo localectl set-x11-keymap fr pc105 % localectl System Locale: LANG=en_US.UTF-8 VC Keymap: fr X11 Layout: fr X11 Model: pc105 % sudo localectl set-x11-keymap gb % localectl System Locale: LANG=en_US.UTF-8 VC Keymap: gb (was uk before) X11 Layout: gb
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#define KBD_KEYMAP_DIRS \
"/usr/share/keymaps/\0" \
"/usr/share/kbd/keymaps/\0" \
"/usr/lib/kbd/keymaps/\0" \
"/lib/kbd/keymaps/\0"
#else
#define KBD_KEYMAP_DIRS \
"/usr/share/keymaps/\0" \
"/usr/share/kbd/keymaps/\0" \
"/usr/lib/kbd/keymaps/\0"
#endif
Move bus path definitions to def.h
2013-12-30 22:12:46 +01:00
sd-bus: rename default bus address constants, they aren't "paths" but "addresses"
2014-11-28 16:05:43 +01:00
#define UNIX_SYSTEM_BUS_ADDRESS "unix:path=/var/run/dbus/system_bus_socket"
Drop kdbus bits Some kdbus_flag and memfd related parts are left behind, because they are entangled with the "legacy" dbus support. test-bus-benchmark is switched to "manual". It was already broken before (in the non-kdbus mode) but apparently nobody noticed. Hopefully it can be fixed later.
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#define DEFAULT_SYSTEM_BUS_ADDRESS UNIX_SYSTEM_BUS_ADDRESS
sd-bus: rename default bus address constants, they aren't "paths" but "addresses"
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#define UNIX_USER_BUS_ADDRESS_FMT "unix:path=%s/bus"
exec: introduce PrivateDevices= switch to provide services with a private /dev Similar to PrivateNetwork=, PrivateTmp= introduce PrivateDevices= that sets up a private /dev with only the API pseudo-devices like /dev/null, /dev/zero, /dev/random, but not any physical devices in them.
2014-01-20 19:54:51 +01:00
tty-ask-password-agent: modernization
2014-08-03 18:52:03 +02:00
#define PLYMOUTH_SOCKET { \
.un.sun_family = AF_UNIX, \
.un.sun_path = "\0/org/freedesktop/plymouthd", \
}
importd: when listing transfers, show progress percentage With this change the pull protocol implementation processes will pass progress data to importd which then passes this information on via the bus. We use sd_notify() as generic transport for this communication, making importd listen to them, while matching the incoming messages to the right transfer.
2015-01-23 01:16:31 +01:00
#define NOTIFY_FD_MAX 768
#define NOTIFY_BUFFER_MAX PIPE_BUF
util-lib: move CONF_DIRS_NULSTR definition to def.h After all, this is not some compiler or C magic, but something very specific to how systemd works, hence let's move it into def.h, and out of macro.h
2015-11-03 12:26:12 +01:00
build-sys: use #if Y instead of #ifdef Y everywhere The advantage is that is the name is mispellt, cpp will warn us. $ git grep -Ee "conf.set\('(HAVE|ENABLE)_" -l|xargs sed -r -i "s/conf.set\('(HAVE|ENABLE)_/conf.set10('\1_/" $ git grep -Ee '#ifn?def (HAVE|ENABLE)' -l|xargs sed -r -i 's/#ifdef (HAVE|ENABLE)/#if \1/; s/#ifndef (HAVE|ENABLE)/#if ! \1/;' $ git grep -Ee 'if.*defined\(HAVE' -l|xargs sed -i -r 's/defined\((HAVE_[A-Z0-9_]*)\)/\1/g' $ git grep -Ee 'if.*defined\(ENABLE' -l|xargs sed -i -r 's/defined\((ENABLE_[A-Z0-9_]*)\)/\1/g' + manual changes to meson.build squash! build-sys: use #if Y instead of #ifdef Y everywhere v2: - fix incorrect setting of HAVE_LIBIDN2
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#if HAVE_SPLIT_USR
basic/def: indentation
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# define _CONF_PATHS_SPLIT_USR(n) "/lib/" n "\0"
util-lib: move CONF_DIRS_NULSTR definition to def.h After all, this is not some compiler or C magic, but something very specific to how systemd works, hence let's move it into def.h, and out of macro.h
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#else
basic/def: indentation
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# define _CONF_PATHS_SPLIT_USR(n)
util-lib: move CONF_DIRS_NULSTR definition to def.h After all, this is not some compiler or C magic, but something very specific to how systemd works, hence let's move it into def.h, and out of macro.h
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#endif
defs: rework CONF_DIRS_NULSTR() macro The macro is generically useful for putting together search paths, hence let's make it truly generic, by dropping the implicit ".d" appending it does, and leave that to the caller. Also rename it from CONF_DIRS_NULSTR() to CONF_PATHS_NULSTR(), since it's not strictly about dirs that way, but any kind of file system path. Also, mark CONF_DIR_SPLIT_USR() as internal macro by renaming it to _CONF_PATHS_SPLIT_USR() so that the leading underscore indicates that it's internal.
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/* Return a nulstr for a standard cascade of configuration paths,
tree-wide: rename config_parse_many to …_nulstr In preparation for adding a version which takes a strv.
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* suitable to pass to conf_files_list_nulstr() or config_parse_many_nulstr()
defs: rework CONF_DIRS_NULSTR() macro The macro is generically useful for putting together search paths, hence let's make it truly generic, by dropping the implicit ".d" appending it does, and leave that to the caller. Also rename it from CONF_DIRS_NULSTR() to CONF_PATHS_NULSTR(), since it's not strictly about dirs that way, but any kind of file system path. Also, mark CONF_DIR_SPLIT_USR() as internal macro by renaming it to _CONF_PATHS_SPLIT_USR() so that the leading underscore indicates that it's internal.
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* to implement drop-in directories for extending configuration
* files. */
basic/def: indentation
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#define CONF_PATHS_NULSTR(n) \
"/etc/" n "\0" \
"/run/" n "\0" \
"/usr/local/lib/" n "\0" \
"/usr/lib/" n "\0" \
defs: rework CONF_DIRS_NULSTR() macro The macro is generically useful for putting together search paths, hence let's make it truly generic, by dropping the implicit ".d" appending it does, and leave that to the caller. Also rename it from CONF_DIRS_NULSTR() to CONF_PATHS_NULSTR(), since it's not strictly about dirs that way, but any kind of file system path. Also, mark CONF_DIR_SPLIT_USR() as internal macro by renaming it to _CONF_PATHS_SPLIT_USR() so that the leading underscore indicates that it's internal.
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_CONF_PATHS_SPLIT_USR(n)
def: add new constant LONG_LINE_MAX LONG_LINE_MAX is much like LINE_MAX, but longer. As it turns out LINE_MAX at 4096 is too short for many usecases. Since the general concept of having a common maximum line length limit makes sense let's add our own, and make it larger (1MB for now).
2017-09-22 20:23:58 +02:00
#define LONG_LINE_MAX (1U*1024U*1024U)