build-sys: use #if Y instead of #ifdef Y everywhere

[thirdparty/systemd.git] / src / shared / utmp-wtmp.h

#pragma once

/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  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
  (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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <stdbool.h>
#include <sys/types.h>

#include "time-util.h"
#include "util.h"

#if HAVE_UTMP
int utmp_get_runlevel(int *runlevel, int *previous);

int utmp_put_shutdown(void);
int utmp_put_reboot(usec_t timestamp);
int utmp_put_runlevel(int runlevel, int previous);

int utmp_put_dead_process(const char *id, pid_t pid, int code, int status);
int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user);

int utmp_wall(
        const char *message,
        const char *username,
        const char *origin_tty,
        bool (*match_tty)(const char *tty, void *userdata),
        void *userdata);

#else /* HAVE_UTMP */

static inline int utmp_get_runlevel(int *runlevel, int *previous) {
        return -ESRCH;
}
static inline int utmp_put_shutdown(void) {
        return 0;
}
static inline int utmp_put_reboot(usec_t timestamp) {
        return 0;
}
static inline int utmp_put_runlevel(int runlevel, int previous) {
        return 0;
}
static inline int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) {
        return 0;
}
static inline int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user) {
        return 0;
}
static inline int utmp_wall(
                const char *message,
                const char *username,
                const char *origin_tty,
                bool (*match_tty)(const char *tty, void *userdata),
                void *userdata) {
        return 0;
}

#endif /* HAVE_UTMP */