2 * Copyright © 2013 Canonical Ltd.
4 * This program is free software: you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License version 3,
6 * as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 * Authored by: Thomas Voß <thomas.voss@canonical.com>
19 #include <core/posix/process_group.h>
25 struct ProcessGroup::Private
30 pid_t ProcessGroup::id() const
35 ProcessGroup::ProcessGroup(pid_t id)
36 : Signalable(-id), // We rely on ::kill to deliver signals, thus negate the id (see man 2 kill).
41 ProcessGroup ProcessGroup::invalid()
43 static const pid_t invalid_pid = 1;
44 return ProcessGroup(invalid_pid);