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- /* This implements wait4 with the 4.4 BSD semantics (also those documented in
- SunOS 4.1) on top of SunOS's wait4 system call, which has semantics
- different from those documented. Go Sun!
-
- Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <ansidecl.h>
- #include <sys/types.h>
- #include <sys/wait.h>
- #include <unistd.h>
-
- extern pid_t __wait4_syscall __P ((pid_t pid, __WAIT_STATUS_DEFN stat_loc,
- int options, struct rusage *usage));
-
- pid_t
- DEFUN(__wait4, (pid, stat_loc, options, usage),
- pid_t pid AND __WAIT_STATUS_DEFN stat_loc AND
- int options AND struct rusage *usage)
- {
- switch (pid)
- {
- case WAIT_ANY:
- pid = 0;
- break;
-
- case WAIT_MYPGRP:
- pid = - __getpgrp (0);
- break;
- }
-
- return __wait4_syscall (pid, stat_loc, options, usage);
- }
-