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/linux/proc/process/oom_score_adj.h>
21 #include <core/posix/process.h>
27 #include <linux/oom.h>
40 int OomScoreAdj::min_value()
42 return OOM_SCORE_ADJ_MIN;
45 int OomScoreAdj::max_value()
47 return OOM_SCORE_ADJ_MAX;
50 const posix::Process& operator>>(const posix::Process& process, OomScoreAdj& score_adj)
52 std::stringstream ss; ss << "/proc/" << process.pid() << "/oom_score_adj";
53 std::ifstream in(ss.str());
55 in >> score_adj.value;
60 const posix::Process& operator<<(const posix::Process& process, const OomScoreAdj& score_adj)
62 if (!score_adj.is_valid())
63 throw std::logic_error("Value for adjusting the oom score is invalid.");
65 std::stringstream ss; ss << "/proc/" << process.pid() << "/oom_score_adj";
66 std::ofstream out(ss.str());
68 out << score_adj.value;