/*
 * SystemBackend.cpp
 *
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "SystemBackend.h"

namespace Mad {
namespace Common {

std::set<SystemBackend*, SystemBackend::Compare> SystemBackend::backends;


SystemBackend::UptimeInfo SystemBackend::getUptimeInfo() {
  UptimeInfo ret = {0, 0};

  for(std::set<SystemBackend*>::iterator backend = backends.begin(); backend != backends.end() && ret.uptime == 0; ++backend)
    ret = (*backend)->uptimeInfo();

  return ret;
}

SystemBackend::MemoryInfo SystemBackend::getMemoryInfo() {
  MemoryInfo ret = {0, 0, 0, 0};

  for(std::set<SystemBackend*>::iterator backend = backends.begin(); backend != backends.end() && ret.totalMem == 0; ++backend)
    ret = (*backend)->memoryInfo();

  return ret;
}

SystemBackend::LoadInfo SystemBackend::getLoadInfo() {
  LoadInfo ret = {0, 0, 0, 0, 0};

  for(std::set<SystemBackend*>::iterator backend = backends.begin(); backend != backends.end() && ret.currentLoad == 0 && ret.loadAvg1 == 0 && ret.nProcesses == 0; ++backend)
    ret = (*backend)->loadInfo();

  return ret;
}

bool SystemBackend::shutdown() {
  bool ret = false;

  for(std::set<SystemBackend*>::iterator backend = backends.begin(); backend != backends.end() && !ret; ++backend)
    ret = (*backend)->doShutdown();

  return ret;
}

bool SystemBackend::reboot() {
  bool ret = false;

  for(std::set<SystemBackend*>::iterator backend = backends.begin(); backend != backends.end() && !ret; ++backend)
    ret = (*backend)->doReboot();

  return ret;
}

}
}