pdns/responsestats.cc

   1 #ifdef HAVE_CONFIG_H
   2 #include "config.h"
   3 #endif
   4 #include "responsestats.hh"
   5 #include <limits>
   6 #include "namespaces.hh"
   7 #include "logger.hh"
   8
   9 #include "dnsparser.hh"
  10
  11 ResponseStats::ResponseStats() :   d_qtypecounters(new std::atomic<unsigned long>[65536])
  12 {
  13   d_sizecounters.push_back(make_pair(20,0));
  14   d_sizecounters.push_back(make_pair(40,0));
  15   d_sizecounters.push_back(make_pair(60,0));
  16   d_sizecounters.push_back(make_pair(80,0));
  17   d_sizecounters.push_back(make_pair(100,0));
  18   d_sizecounters.push_back(make_pair(150,0));
  19   for(int n=200; n < 65000 ; n+=200)
  20     d_sizecounters.push_back(make_pair(n,0));
  21   d_sizecounters.push_back(make_pair(std::numeric_limits<uint16_t>::max(),0));
  22   for(unsigned int n =0 ; n < 65535; ++n)
  23     d_qtypecounters[n] = 0;
  24 }
  25
  26 ResponseStats g_rs;
  27
  28 static bool pcomp(const pair<uint16_t, uint64_t>&a , const pair<uint16_t, uint64_t>&b)
  29 {
  30   return a.first < b.first;
  31 }
  32
  33 void ResponseStats::submitResponse(uint16_t qtype, uint16_t respsize, bool udpOrTCP)
  34 {
  35   d_qtypecounters[qtype]++;
  36   pair<uint16_t, uint64_t> s(respsize, 0);
  37   sizecounters_t::iterator iter = std::upper_bound(d_sizecounters.begin(), d_sizecounters.end(), s, pcomp);
  38   if(iter!= d_sizecounters.begin())
  39     --iter;
  40   iter->second++;
  41 }
  42
  43 map<uint16_t, uint64_t> ResponseStats::getQTypeResponseCounts()
  44 {
  45   map<uint16_t, uint64_t> ret;
  46   uint64_t count;
  47   for(unsigned int i = 0 ; i < 65535 ; ++i) {
  48     count= d_qtypecounters[i];
  49     if(count)
  50       ret[i]=count;
  51   }
  52   return ret;
  53 }
  54
  55 map<uint16_t, uint64_t> ResponseStats::getSizeResponseCounts()
  56 {
  57   map<uint16_t, uint64_t> ret;
  58   for(sizecounters_t::const_iterator iter = d_sizecounters.begin();
  59       iter != d_sizecounters.end();
  60       ++iter) {
  61     ret[iter->first]=iter->second;
  62   }
  63   return ret;
  64 }
  65
  66 string ResponseStats::getQTypeReport()
  67 {
  68   typedef map<uint16_t, uint64_t> qtypenums_t;
  69   qtypenums_t qtypenums = getQTypeResponseCounts();
  70   ostringstream os;
  71   boost::format fmt("%s\t%d\n");
  72   for(const qtypenums_t::value_type& val :  qtypenums) {
  73     os << (fmt %DNSRecordContent::NumberToType( val.first) % val.second).str();
  74   }
  75   return os.str();
  76 }
  77