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/***************************************************************************
devreaderfactory.cpp
--------------------
begin : Fri Nov 16 2007
copyright : (C) 2007 - 2012 by Roland Riegel
email : feedback@roland-riegel.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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "devreaderfactory.h"
#include "config.h"
#include "devreader.h"
#include "devreader-bsd.h"
#include "devreader-hpux.h"
#include "devreader-linux-proc.h"
#include "devreader-linux-sys.h"
#include "devreader-linux.h"
#include "devreader-solaris.h"
#include <string>
#include <list>
#include <map>
using namespace std;
map<string, DevReader*> DevReaderFactory::m_devReaders;
DevReaderFactory DevReaderFactory::m_instance;
DevReaderFactory::DevReaderFactory()
{
}
DevReaderFactory::~DevReaderFactory()
{
for(map<string, DevReader*>::const_iterator it = m_devReaders.begin(); it != m_devReaders.end(); ++it)
delete it->second;
m_devReaders.clear();
}
int DevReaderFactory::findAllDevices()
{
#if defined HAVE_BSD
list<string> interfaceNames = DevReaderBsd::findAllDevices();
#elif defined HAVE_HPUX
list<string> interfaceNames = DevReaderHpux::findAllDevices();
#elif defined HAVE_LINUX
list<string> interfaceNames = DevReaderLinux::findAllDevices();
#elif defined HAVE_SOLARIS
list<string> interfaceNames = DevReaderSolaris::findAllDevices();
#endif
map<string, DevReader*>::iterator devReaderIt = m_devReaders.begin();
while(devReaderIt != m_devReaders.end())
{
list<string>::iterator interfaceIt = interfaceNames.begin();
list<string>::iterator interfaceItEnd = interfaceNames.end();
while(*interfaceIt != devReaderIt->first && interfaceIt != interfaceItEnd)
++interfaceIt;
// delete all devices which disappeared
if(interfaceIt == interfaceItEnd)
{
delete devReaderIt->second;
m_devReaders.erase(devReaderIt++);
}
// delete all entries in the interface name list which we know of already
else
{
interfaceNames.erase(interfaceIt);
devReaderIt++;
}
}
// the interface name list now contains only devices which just appeared in the system
for(list<string>::const_iterator it = interfaceNames.begin(); it != interfaceNames.end(); ++it)
{
DevReader* newReader = createDevReader(*it);
if(newReader)
m_devReaders[*it] = newReader;
}
return m_devReaders.size();
}
int DevReaderFactory::getDeviceCount()
{
return m_devReaders.size();
}
const map<string, DevReader*>& DevReaderFactory::getAllDevReaders()
{
return m_devReaders;
}
DevReader* DevReaderFactory::createDevReader(const string& deviceName)
{
DevReader* reader = 0;
#if defined HAVE_BSD
reader = new DevReaderBsd(deviceName);
#elif defined HAVE_HPUX
reader = new DevReaderHpux(deviceName);
#elif defined HAVE_LINUX
if(DevReaderLinuxSys::isAvailable())
reader = new DevReaderLinuxSys(deviceName);
else if(DevReaderLinuxProc::isAvailable())
reader = new DevReaderLinuxProc(deviceName);
else
reader = 0;
#elif defined HAVE_SOLARIS
reader = new DevReaderSolaris(deviceName);
#endif
return reader;
}
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