/*
* Copyright © 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3,
* as published by the Free Software Foundation.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see .
*
* Authored by: Thomas Voß
*/
#include
#include
#include
#include
#include
#include
namespace core
{
namespace posix
{
namespace linux
{
namespace proc
{
namespace process
{
int OomAdj::disable_value()
{
return OOM_DISABLE;
}
int OomAdj::min_value()
{
return OOM_ADJUST_MIN;
}
int OomAdj::max_value()
{
return OOM_ADJUST_MAX;
}
const posix::Process& operator>>(const posix::Process& process, OomAdj& adj)
{
std::stringstream ss; ss << "/proc/" << process.pid() << "/oom_adj";
std::ifstream in(ss.str());
in >> adj.value;
return process;
}
const posix::Process& operator<<(const posix::Process& process, const OomAdj& adj)
{
if (!adj.is_valid())
throw std::logic_error("Value for adjusting the oom score is invalid.");
std::stringstream ss; ss << "/proc/" << process.pid() << "/oom_adj";
std::ofstream out(ss.str());
out << adj.value;
return process;
}
}
}
}
}
}