45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Determine the time when the machine last booted.
|
|
Copyright (C) 2023-2024 Free Software Foundation, Inc.
|
|
|
|
This file is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published
|
|
by the Free Software Foundation, either version 3 of the License,
|
|
or (at your option) any later version.
|
|
|
|
This file 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* Written by Bruno Haible <bruno@clisp.org>. */
|
|
|
|
#ifndef _BOOT_TIME_H
|
|
#define _BOOT_TIME_H
|
|
|
|
#include <time.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/* Store the approximate time when the machine last booted in *P_BOOT_TIME,
|
|
and return 0. If it cannot be determined, return -1.
|
|
|
|
This function is not multithread-safe, since on many platforms it
|
|
invokes the functions setutxent, getutxent, endutxent. These
|
|
functions are needed because they may lock FILE (so that we don't
|
|
read garbage when a concurrent process writes to FILE), but their
|
|
drawback is that they have a common global state. */
|
|
extern int get_boot_time (struct timespec *p_boot_time);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _BOOT_TIME_H */
|