/* Copyright (C) 1991, 92, 93, 94, 95, 97 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <hurd.h> 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 <hurd/msg_server.h> #include "set-hooks.h" #include <cthreads.h> 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) { int pgrp_changed; if (task != __mach_task_self ()) return EPERM; __mach_port_deallocate (__mach_task_self (), task); pgrp_changed = pgrp != _hurd_pgrp; _hurd_ppid = ppid; _hurd_pgrp = pgrp; _hurd_orphaned = orphaned; if (pgrp_changed) /* Run things that want notification of a pgrp change. */ RUN_HOOK (_hurd_pgrp_changed_hook, (pgrp)); /* Notify any waiting user threads that the id change as been completed. */ ++_hurd_pids_changed_stamp; return 0; }