lib/get_ppid_of.h

   1 /* Determine the parent process of a given process.
   2    Copyright (C) 2019-2020 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2019.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _GET_PPID_OF_H
  19 #define _GET_PPID_OF_H
  20
  21 #include <sys/types.h>
  22
  23 #ifdef __cplusplus
  24 extern "C" {
  25 #endif
  26
  27 /* Returns the process id of the parent process of the given process,
  28    or 0 if it cannot be determined.  */
  29 extern pid_t get_ppid_of (pid_t pid);
  30
  31 #ifdef __cplusplus
  32 }
  33 #endif
  34
  35 #endif /* _GET_PPID_OF_H */