1 /* Copyright (C) 1991-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <errno.h>
19 #include <unistd.h>
20 #include <sys/types.h>
21 #include <hurd.h>
22
23
24 /* Get the parent process ID of the calling process. */
25 pid_t
__getppid(void)26 __getppid (void)
27 {
28 /* Assumes atomic word fetch and store, so doesn't lock _hurd_pid_lock. */
29 return _hurd_ppid;
30 }
31
32 weak_alias (__getppid, getppid)
33