upnptaskcache.h

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// Program Name: upnptaskcache.h
// Created     : Jan. 9, 2007
//
// Purpose     : UPnp Task to keep SSDPCache free of stale records
//                                                                            
// Copyright (c) 2007 David Blain <dblain@mythtv.org>
//                                          
// Licensed under the GPL v2 or later, see LICENSE for details
//
 
#ifndef UPNPTASKCACHE_H
#define UPNPTASKCACHE_H
 
#include <QString>
 
#include "libmythbase/mythlogging.h"
 
#include "libmythupnp/upnp.h"
 
//
// SSDPCacheTask Class Definition
//
 
class SSDPCacheTask : public Task
{
    protected:
 
        std::chrono::milliseconds m_nInterval     {30s}; // Number of ms between executing.
        int                       m_nExecuteCount {0};   // Used for debugging.
 
        // Destructor protected to force use of Release Method
 
        ~SSDPCacheTask() override = default;
 
    public:
 
        SSDPCacheTask() : Task("SSDPCacheTask")
        {
            m_nInterval     = 30s;
// TODO: Rework when separating upnp/ssdp stack
//               XmlConfiguration().GetDuration<std::chrono::seconds>("UPnP/SSDP/CacheInterval", 30s);
        }
 
        QString Name() override // Task
        { 
            return( "SSDPCache" );
        }
 
        void Execute( TaskQueue *pQueue ) override // Task
        {
            m_nExecuteCount++;
 
            int nCount = SSDPCache::Instance()->RemoveStale();
 
            if (nCount > 0)
            {
                LOG(VB_UPNP, LOG_INFO,
                    QString("SSDPCacheTask - Removed %1 stale entries.")
                        .arg(nCount));
            }
 
            if ((m_nExecuteCount % 60) == 0)
                SSDPCache::Instance()->Dump();
                                    
            pQueue->AddTask( m_nInterval, (Task *)this  );
        }
 
};
 
#endif // UPNPTASKCACHE_H