sd_booted(3) [xfree86 man page]

SD_BOOTED(3)							     sd_booted							      SD_BOOTED(3)

NAME

       sd_booted - Test whether the system is running the systemd init system.

SYNOPSIS

       #include <systemd/sd-daemon.h>

       int sd_booted(void);

DESCRIPTION

       sd_booted() checks whether the system was booted up using the systemd init system.

RETURN VALUE

       On failure, this call returns a negative errno-style error code. If the system was booted up with systemd as init system, this call returns
       a positive return value, zero otherwise.

NOTES

       This function is provided by the reference implementation of APIs for new-style daemons and distributed with the systemd package. The
       algorithm it implements is simple, and can easily be reimplemented in daemons if it is important to support this interface without using
       the reference implementation.

       Internally, this function checks whether the /sys/fs/cgroup/systemd virtual file system is mounted, by comparing the st_dev value of the
       stat() data of /sys/fs/cgroup and /sys/fs/cgroup/systemd.

       For details about the algorithm check the liberally licensed reference implementation sources:
       http://cgit.freedesktop.org/systemd/systemd/plain/src/sd-daemon.c resp.
       http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h

       sd_booted() is implemented in the reference implementation's sd-daemon.c and sd-daemon.h files. These interfaces are available as shared
       library, which can be compiled and linked to with the libsystemd-daemon pkg-config(1) file. Alternatively, applications consuming these
       APIs may copy the implementation into their source tree. For more details about the reference implementation see sd_daemon(7).

       If the reference implementation is used as drop-in files and -DDISABLE_SYSTEMD is set during compilation this function will always return 0
       and otherwise become a NOP.

SEE ALSO

       systemd(1), sd_daemon(7)

AUTHOR

       Lennart Poettering <lennart@poettering.net>
	   Developer

systemd 							    10/07/2013							      SD_BOOTED(3)

SD_BOOTED(3)							     sd_booted							      SD_BOOTED(3)

NAME

       sd_booted - Test whether the system is running the systemd init system.

SYNOPSIS

       #include <systemd/sd-daemon.h>

       int sd_booted(void);

DESCRIPTION

       sd_booted() checks whether the system was booted up using the systemd init system.

RETURN VALUE

       On failure, this call returns a negative errno-style error code. If the system was booted up with systemd as init system, this call returns
       a positive return value, zero otherwise.

NOTES

       This function is provided by the reference implementation of APIs for new-style daemons and distributed with the systemd package. The
       algorithm it implements is simple, and can easily be reimplemented in daemons if it is important to support this interface without using
       the reference implementation.

       Internally, this function checks whether the /sys/fs/cgroup/systemd virtual file system is mounted, by comparing the st_dev value of the
       stat() data of /sys/fs/cgroup and /sys/fs/cgroup/systemd.

       For details about the algorithm check the liberally licensed reference implementation sources:
       http://cgit.freedesktop.org/systemd/systemd/plain/src/sd-daemon.c resp.
       http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h

       sd_booted() is implemented in the reference implementation's sd-daemon.c and sd-daemon.h files. These interfaces are available as shared
       library, which can be compiled and linked to with the libsystemd-daemon pkg-config(1) file. Alternatively, applications consuming these
       APIs may copy the implementation into their source tree. For more details about the reference implementation see sd_daemon(7).

       If the reference implementation is used as drop-in files and -DDISABLE_SYSTEMD is set during compilation this function will always return 0
       and otherwise become a NOP.

SEE ALSO

       systemd(1), sd_daemon(7)

AUTHOR

       Lennart Poettering <lennart@poettering.net>
	   Developer

systemd 							    10/07/2013							      SD_BOOTED(3)