RRList.hxx

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#ifndef RESIP_DNS_RR_LIST
#define RESIP_DNS_RR_LIST
 
#include <vector>
 
#include "rutil/IntrusiveListElement.hxx"
#include "rutil/dns/RRFactory.hxx"
 
namespace resip
{
class DnsResourceRecord;
class DnsHostRecord;
 
class RRList : public IntrusiveListElement<RRList*>
{
   public:
 
      class Protocol
      {
         public:
            static const int Reserved = 0;
            static const int Sip = 1;
            static const int Stun = 2;
            static const int Http = 3;
            static const int Enum = 4;
      };
 
      typedef std::vector<DnsResourceRecord*> Records;
      typedef IntrusiveListElement<RRList*> LruList;
      typedef std::vector<RROverlay>::const_iterator Itr;
      typedef std::vector<Data> DataArr;
 
      RRList();
      explicit RRList(const Data& key, const int rrtype, int ttl, int status);
      explicit RRList(const Data& key, int rrtype);
      ~RRList();
      RRList(const RRFactoryBase* factory, 
             const Data& key,
             const int rrType,
             Itr begin,
             Itr end, 
             int ttl);
      
      RRList(const DnsHostRecord &record, int ttl);
      void update(const DnsHostRecord &record, int ttl);
 
      void update(const RRFactoryBase* factory, Itr begin, Itr end, int ttl);
      Records records(const int protocol);
      size_t numRecords() { return mRecords.size(); }
 
      const Data& key() const { return mKey; }
      int status() const { return mStatus; }
      int rrType() const { return mRRType; }
      uint64_t absoluteExpiry() const { return mAbsoluteExpiry; }
      uint64_t& absoluteExpiry() { return mAbsoluteExpiry; }
      void log();
      EncodeStream& encodeRRList(EncodeStream& strm);
 
   private:
 
      struct RecordItem
      {
            DnsResourceRecord* record;
            std::vector<int> blacklistedProtocols;
      };
 
      typedef std::vector<RecordItem> RecordArr;
      typedef RecordArr::iterator RecordItr;
 
      RecordArr mRecords;
 
      Data mKey;
      int mRRType;
 
      int mStatus; // dns query status.
      uint64_t mAbsoluteExpiry;
 
      RecordItr find(const Data&);
      void clear();
};
 
}
 
#endif
 
 
/* ====================================================================
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 * Copyright (c) 2010 SIP Spectrum, Inc.  All rights reserved.
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