From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- hurd/hurdpid.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 hurd/hurdpid.c (limited to 'hurd/hurdpid.c') diff --git a/hurd/hurdpid.c b/hurd/hurdpid.c new file mode 100644 index 0000000000..23594d9a10 --- /dev/null +++ b/hurd/hurdpid.c @@ -0,0 +1,71 @@ +/* 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 +pid_t _hurd_pid, _hurd_ppid, _hurd_pgrp; +int _hurd_orphaned; + +static void +init_pids (void) +{ + __USEPORT (PROC, + ({ + __proc_getpids (port, &_hurd_pid, &_hurd_ppid, &_hurd_orphaned); + __proc_getpgrp (port, _hurd_pid, &_hurd_pgrp); + })); + + (void) &init_pids; /* Avoid "defined but not used" warning. */ +} + +text_set_element (_hurd_proc_subinit, init_pids); + +#include +#include "set-hooks.h" +#include + +DEFINE_HOOK (_hurd_pgrp_changed_hook, (pid_t)); + +/* These let user threads synchronize with an operation which changes ids. */ +unsigned int _hurd_pids_changed_stamp; +struct condition _hurd_pids_changed_sync; + +kern_return_t +_S_msg_proc_newids (mach_port_t me, + task_t task, + pid_t ppid, pid_t pgrp, int orphaned) +{ + if (task != __mach_task_self ()) + return EPERM; + + __mach_port_deallocate (__mach_task_self (), task); + + _hurd_ppid = ppid; + _hurd_pgrp = pgrp; + _hurd_orphaned = orphaned; + + /* Run things that want notification of a pgrp change. */ + RUN_HOOK (_hurd_pgrp_changed_hook, (_hurd_pgrp)); + + /* Notify any waiting user threads that the id change as been completed. */ + ++_hurd_pids_changed_stamp; +#ifdef noteven + __condition_broadcast (&_hurd_pids_changed_sync); +#endif + + return 0; +} -- cgit 1.4.1