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author | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
commit | 28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch) | |
tree | 15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/mach/hurd/getpgid.c | |
download | glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.zip glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.gz glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.bz2 |
initial import
Diffstat (limited to 'sysdeps/mach/hurd/getpgid.c')
-rw-r--r-- | sysdeps/mach/hurd/getpgid.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/getpgid.c b/sysdeps/mach/hurd/getpgid.c new file mode 100644 index 0000000..b9a3634 --- /dev/null +++ b/sysdeps/mach/hurd/getpgid.c @@ -0,0 +1,44 @@ +/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 <errno.h> +#include <unistd.h> +#include <hurd.h> +#include <hurd/port.h> + +/* Get the process group ID of process PID. */ +int +DEFUN(__getpgid, (pid), pid_t pid) +{ + error_t err; + pid_t pgrp; + + if (pid == 0) + { + /* Assume atomic word fetch and store, so don't lock _hurd_pid_lock. */ + pgrp = _hurd_pgrp; + err = 0; + } + else + err = __USEPORT (PROC, __proc_getpgrp (port, pid, &pgrp)); + + return err ? __hurd_fail (err) : pgrp; +} + +weak_alias (__getpgid, getpgid) |