wait3.c 1.3 KB

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  1. /* Copyright (C) 1991-2019 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <http://www.gnu.org/licenses/>. */
  14. #include <errno.h>
  15. #include <sys/wait.h>
  16. #include <sys/types.h>
  17. /* Wait for a child to exit. When one does, put its status in *STAT_LOC and
  18. return its process ID. For errors return (pid_t) -1. If USAGE is not nil,
  19. store information about the child's resource usage (as a `struct rusage')
  20. there. If the WUNTRACED bit is set in OPTIONS, return status for stopped
  21. children; otherwise don't. */
  22. pid_t
  23. __wait3 (int *stat_loc, int options, struct rusage *usage)
  24. {
  25. return __wait4 (WAIT_ANY, stat_loc, options, usage);
  26. }
  27. weak_alias (__wait3, wait3)