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tdelibs/networkstatus/networkstatus.cpp

310 lines
8.8 KiB

/*
This file is part of tdepim.
Copyright (c) 2005 Will Stephenson <lists@stevello.free-online.co.uk>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "networkstatus.h"
#include <tqdict.h>
#include <tqtimer.h>
#include <tqvaluelist.h>
#include <dcopclient.h>
#include <tdeapplication.h>
#include <kdebug.h>
#include "clientifaceimpl.h"
#include "serviceifaceimpl.h"
#include "network.h"
#include <tdeversion.h>
#include <tdemacros.h>
extern "C" {
TDE_EXPORT KDEDModule* create_networkstatus( const TQCString& obj )
{
return new NetworkStatusModule( obj );
}
}
// INTERNALLY USED STRUCTS AND TYPEDEFS
//typedef TQDict< Network > NetworkList;
typedef TQValueList< Network * > NetworkList;
class NetworkStatusModule::Private
{
public:
NetworkList networks;
/* ClientIface * clientIface;
ServiceIface * serviceIface;*/
};
// CTORS/DTORS
NetworkStatusModule::NetworkStatusModule( const TQCString & obj ) : KDEDModule( obj )
{
d = new Private;
/* d->clientIface = new ClientIfaceImpl( this );
d->serviceIface = new ServiceIfaceImpl( this );*/
connect( kapp->dcopClient(), TQ_SIGNAL( applicationRemoved( const TQCString& ) ) , this, TQ_SLOT( unregisteredFromDCOP( const TQCString& ) ) );
connect( kapp->dcopClient(), TQ_SIGNAL( applicationRegistered( const TQCString& ) ) , this, TQ_SLOT( registeredToDCOP( const TQCString& ) ) );
}
NetworkStatusModule::~NetworkStatusModule()
{
/* delete d->clientIface;
delete d->serviceIface;*/
delete d;
}
// CLIENT INTERFACE
TQStringList NetworkStatusModule::networks()
{
kdDebug() << k_funcinfo << " contains " << d->networks.count() << " networks" << endl;
TQStringList networks;
NetworkList::iterator end = d->networks.end();
NetworkList::iterator it = d->networks.begin();
for ( ; it != end; ++it )
networks.append( (*it)->name() );
return networks;
}
int NetworkStatusModule::status( const TQString & host )
{
if ( host == "127.0.0.1" || host == "localhost" )
return NetworkStatus::Online;
Network * p = networkForHost( host );
if ( !p )
{
//kdDebug() << k_funcinfo << " no networks have status for host '" << host << "'" << endl;
return (int)NetworkStatus::NoNetworks;
}
else
{
kdDebug() << k_funcinfo << " got status for host '" << host << "' : " << (int)(p->status()) << endl;
return (int)(p->status());
}
}
int NetworkStatusModule::request( const TQString & host, bool userInitiated )
{
// identify most suitable network for host
Network * p = networkForHost( host );
if ( !p )
return NetworkStatus::Unavailable;
NetworkStatus::EnumStatus status = p->status();
TQCString appId = kapp->dcopClient()->senderId();
if ( status == NetworkStatus::Online )
{
p->registerUsage( appId, host );
return NetworkStatus::Connected;
}
// if online
// register usage
// return Available
else if ( status == NetworkStatus::Establishing )
{
p->registerUsage( appId, host );
return NetworkStatus::RequestAccepted;
}
// if establishing
// register usage
// return Accepted
else if ( status == NetworkStatus::Offline || status == NetworkStatus::ShuttingDown )
{
// TODO: check on demand policy
p->registerUsage( appId, host );
return NetworkStatus::RequestAccepted;
}
// if offline or ShuttingDown
// check ODP::
// always or Permanent: register, return accepted
// user: check userInitiated, register, return Accepted or UserRefused
// never: return UserRefused
else if ( status == NetworkStatus::OfflineFailed )
{
// TODO: check user's preference for dealing with failed networks
p->registerUsage( appId, host );
return NetworkStatus::RequestAccepted;
}
// if OfflineFailed
// check user's preference
else if ( status == NetworkStatus::OfflineDisconnected )
{
return NetworkStatus::Unavailable;
}
else
return NetworkStatus::Unavailable;
// if OfflineDisconnected or NoNetworks
// return Unavailable
}
void NetworkStatusModule::relinquish( const TQString & host )
{
TQCString appId = kapp->dcopClient()->senderId();
// find network currently used by app for host...
NetworkList::iterator end = d->networks.end();
NetworkList::iterator it = d->networks.begin();
for ( ; it != end; ++it )
{
Network * net = *it;
NetworkUsageList usage = net->usage();
NetworkUsageList::iterator end2 = usage.end();
for ( NetworkUsageList::iterator usageIt = usage.begin(); usageIt != end2; ++usageIt )
{
if ( (*usageIt).appId == appId && (*usageIt).host == host )
{
// remove host usage record
usage.remove( usageIt );
// if requested shutdown flagged for network
// check if all hosts have relinquished
// call confirmShutDown on Service
//checkShutdownOk();
}
}
}
}
bool NetworkStatusModule::reportFailure( const TQString & host )
{
// find network for host
// check IP record. remove IP usage record. if other IP exists, return true.
Q_UNUSED( host );
kdDebug() << k_funcinfo << "NOT IMPLEMENTED" << endl;
return false;
}
// PROTECTED UTILITY FUNCTIONS
/*
* Determine the network to use for the supplied host
*/
Network * NetworkStatusModule::networkForHost( const TQString & host ) const
{
// return a null pointer if no networks are registered
if ( d->networks.isEmpty() )
return 0;
NetworkList::const_iterator it = d->networks.begin();
Network * bestNetwork = *(it++);
NetworkList::const_iterator end = d->networks.end();
for ( ; it != end; ++it )
{
if ( (*it)->reachabilityFor( host ) > bestNetwork->reachabilityFor( host ) )
{
bestNetwork = (*it);
}
}
return bestNetwork;
}
void NetworkStatusModule::registeredToDCOP( const TQCString & appId )
{
}
void NetworkStatusModule::unregisteredFromDCOP( const TQCString & appId )
{
// unregister any networks owned by a service that has just unregistered
NetworkList::iterator it = d->networks.begin();
NetworkList::iterator end = d->networks.end();
for ( ; it != end; ++it )
{
if ( (*it)->service() == appId)
{
kdDebug() << k_funcinfo << "removing '" << (*it)->name() << "', registered by " << appId << endl;
d->networks.remove( it );
break;
}
}
}
// SERVICE INTERFACE //
void NetworkStatusModule::setNetworkStatus( const TQString & networkName, int st )
{
kdDebug() << k_funcinfo << endl;
NetworkStatus::EnumStatus status = (NetworkStatus::EnumStatus)st;
Network * net = 0;
NetworkList::iterator it = d->networks.begin();
NetworkList::iterator end = d->networks.end();
for ( ; it != end; ++it )
{
if ( (*it)->name() == networkName )
{
net = (*it);
break;
}
}
if ( net )
{
if ( net->status() == status )
return;
// update the status of the network
net->setStatus( status );
// notify for each host in use on that network
NetworkUsageList usage = net->usage();
NetworkUsageList::iterator end = usage.end();
TQStringList notified;
for ( NetworkUsageList::iterator it = usage.begin(); it != end; ++it )
{
// only notify once per host
if ( !notified.contains( (*it).host ) )
{
kdDebug() << "notifying statusChange of " << networkName << " to " << (int)status <<
" because " << (*it).appId << " is using " << (*it).host << endl;
/*d->clientIface->*/statusChange( (*it).host, (int)status );
notified.append( (*it).host );
}
}
// if we are now anything but Establishing or Online, reset the usage records for that network
if ( !( net->status() == NetworkStatus::Establishing || net->status() == NetworkStatus::Establishing ) )
net->removeAllUsage();
}
else
kdDebug() << k_funcinfo << "No network found by this name" << endl;
}
void NetworkStatusModule::registerNetwork( const TQString & networkName, const NetworkStatus::Properties properties )
{
kdDebug() << k_funcinfo << "registering '" << networkName << "', with status " << properties.status << endl;
// TODO: check for re-registration, checking appid matches
d->networks.append( new Network( networkName, properties ) );
}
void NetworkStatusModule::unregisterNetwork( const TQString & networkName )
{
// TODO: check appid
//d->networks.remove( networkName );
}
void NetworkStatusModule::requestShutdown( const TQString & networkName )
{
Q_UNUSED( networkName );
kdDebug() << k_funcinfo << "NOT IMPLEMENTED" << endl;
}
#include "networkstatus.moc"