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/*
* SystemBackendProc.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 Lesser 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 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 <http://www.gnu.org/licenses/>.
*/
#include "SystemBackendProc.h"
#include <Core/ThreadManager.h>
#include <boost/thread/locks.hpp>
#include <cstdio>
#include <cstring>
namespace Mad {
namespace Modules {
namespace SystemBackendProc {
void SystemBackendProc::getUptimeInfo(unsigned long *uptime, unsigned long *idleTime) throw(Core::Exception) {
application->getThreadManager()->detach();
boost::lock_guard<boost::mutex> lock(uptimeMutex);
uptimeFile.seekg(0, std::ios::beg);
if(!uptimeFile.good())
throw(Core::Exception(Core::Exception::NOT_AVAILABLE));
float f;
uptimeFile >> f;
if(!uptimeFile.good())
throw(Core::Exception(Core::Exception::NOT_AVAILABLE));
if(uptime)
*uptime = (unsigned long)f;
uptimeFile >> f;
if(uptimeFile.good() && idleTime)
*idleTime = (unsigned long)f;
}
void SystemBackendProc::getMemoryInfo(unsigned long *totalMem, unsigned long *freeMem, unsigned long *totalSwap, unsigned long *freeSwap) throw(Core::Exception) {
application->getThreadManager()->detach();
boost::lock_guard<boost::mutex> lock(meminfoMutex);
if(totalMem)
*totalMem = 0;
if(freeMem)
*freeMem = 0;
if(totalSwap)
*totalSwap = 0;
if(freeSwap)
*freeSwap = 0;
meminfoFile.seekg(0, std::ios::beg);
if(!meminfoFile.good())
throw(Core::Exception(Core::Exception::NOT_AVAILABLE));
while(!meminfoFile.eof() && meminfoFile.good()) {
std::string line;
std::getline(meminfoFile, line);
char *name = new char[line.length()+1]; // is always long enough
unsigned long value;
if(std::sscanf(line.c_str(), "%s %lu", name, &value) == 2) {
if(std::strcmp(name, "MemTotal:") == 0 && totalMem)
*totalMem = value;
else if(std::strcmp(name, "MemFree:") == 0 && freeMem)
*freeMem = value;
else if(std::strcmp(name, "SwapTotal:") == 0 && totalSwap)
*totalSwap = value;
else if(std::strcmp(name, "SwapFree:" ) == 0 && freeSwap)
*freeSwap = value;
}
delete [] name;
if((!totalMem || *totalMem) && (!freeMem || *freeMem) && (!totalSwap || *totalSwap) && (!freeSwap || *freeSwap))
break;
}
}
void SystemBackendProc::getLoadInfo(unsigned long *currentLoad, unsigned long *nProcesses, float *loadAvg1, float *loadAvg5, float *loadAvg15) throw(Core::Exception) {
application->getThreadManager()->detach();
boost::lock_guard<boost::mutex> lock(loadMutex);
unsigned long currentLoadValue = 0, nProcessesValue = 0;
float loadAvg1Value = 0, loadAvg5Value = 0, loadAvg15Value = 0;
loadFile.seekg(0, std::ios::beg);
if(!loadFile.good())
throw(Core::Exception(Core::Exception::NOT_AVAILABLE));
std::string line;
std::getline(loadFile, line);
if(line.empty())
throw(Core::Exception(Core::Exception::NOT_AVAILABLE));
std::sscanf(line.c_str(), "%f %f %f %lu/%lu", &loadAvg1Value, &loadAvg5Value, &loadAvg15Value, ¤tLoadValue, &nProcessesValue);
if(currentLoad)
*currentLoad = currentLoadValue;
if(nProcesses)
*nProcesses = nProcessesValue;
if(loadAvg1)
*loadAvg1 = loadAvg1Value;
if(loadAvg5)
*loadAvg5 = loadAvg5Value;
if(loadAvg15)
*loadAvg15 = loadAvg15Value;
}
}
}
}
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