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/*
* SystemBackend.h
*
* 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/>.
*/
#ifndef MAD_COMMON_SYSTEMBACKEND_H_
#define MAD_COMMON_SYSTEMBACKEND_H_
#include <set>
namespace Mad {
namespace Common {
class SystemBackend {
public:
struct UptimeInfo {
unsigned long uptime;
unsigned long idleTime;
};
struct MemoryInfo {
unsigned long totalMem;
unsigned long freeMem;
unsigned long totalSwap;
unsigned long freeSwap;
};
struct LoadInfo {
unsigned long currentLoad;
unsigned long nProcesses;
float loadAvg1;
float loadAvg5;
float loadAvg15;
};
private:
struct Compare {
bool operator() (const SystemBackend *b1, const SystemBackend *b2) {
if(b1->getPriority() == b2->getPriority())
return (b1 > b2);
else
return (b1->getPriority() > b2->getPriority());
}
};
static std::set<SystemBackend*, Compare> backends;
protected:
SystemBackend() {}
static void registerBackend(SystemBackend *backend) {
backends.insert(backend);
}
static void unregisterBackend(SystemBackend *backend) {
backends.erase(backend);
}
virtual UptimeInfo uptimeInfo() {
UptimeInfo ret = {0, 0};
return ret;
}
virtual MemoryInfo memoryInfo() {
MemoryInfo ret = {0, 0, 0, 0};
return ret;
}
virtual LoadInfo loadInfo() {
LoadInfo ret = {0, 0, 0, 0, 0};
return ret;
}
virtual bool doShutdown() {return false;}
virtual bool doReboot() {return false;}
virtual int getPriority() const {
return 0;
}
public:
virtual ~SystemBackend() {}
static UptimeInfo getUptimeInfo();
static MemoryInfo getMemoryInfo();
static LoadInfo getLoadInfo();
static bool shutdown();
static bool reboot();
};
}
}
#endif /* MAD_COMMON_SYSTEMBACKEND_H_ */
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