1  /* Run a function in a subprocess.
       2     Copyright (C) 2017-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library 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 GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <support/check.h>
      20  #include <support/xunistd.h>
      21  
      22  void
      23  support_isolate_in_subprocess (void (*callback) (void *), void *closure)
      24  {
      25    pid_t pid = xfork ();
      26    if (pid == 0)
      27      {
      28        /* Child process.  */
      29        callback (closure);
      30        _exit (0);
      31      }
      32  
      33    /* Parent process.  */
      34    int status;
      35    xwaitpid (pid, &status, 0);
      36    if (status != 0)
      37      FAIL_EXIT1 ("child process exited with status %d", status);
      38  }