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/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "dnsname.hh"
#include <map>
#include "iputils.hh"
class StatNode
{
public:
struct Stat
{
Stat()
{
}
uint64_t queries{0};
uint64_t noerrors{0};
uint64_t nxdomains{0};
uint64_t servfails{0};
uint64_t drops{0};
uint64_t bytes{0};
uint64_t hits{0};
using remotes_t = std::map<ComboAddress,int,ComboAddress::addressOnlyLessThan>;
remotes_t remotes;
Stat& operator+=(const Stat& rhs) {
queries += rhs.queries;
noerrors += rhs.noerrors;
nxdomains += rhs.nxdomains;
servfails += rhs.servfails;
drops += rhs.drops;
bytes += rhs.bytes;
hits += rhs.hits;
for (const remotes_t::value_type& rem : rhs.remotes) {
remotes[rem.first] += rem.second;
}
return *this;
}
};
using visitor_t = std::function<void(const StatNode*, const Stat& selfstat, const Stat& childstat)>;
using children_t = std::map<std::string, StatNode, CIStringCompare>;
Stat s;
std::string name;
std::string fullname;
uint8_t labelsCount{0};
void submit(const DNSName& domain, int rcode, unsigned int bytes, bool hit, boost::optional<const ComboAddress&> remote);
Stat print(unsigned int depth=0, Stat newstat=Stat(), bool silent=false) const;
void visit(visitor_t visitor, Stat& newstat, unsigned int depth=0) const;
bool empty() const
{
return children.empty() && s.remotes.empty();
}
children_t children;
private:
void submit(std::vector<string>::const_iterator end, std::vector<string>::const_iterator begin, const std::string& domain, int rcode, unsigned int bytes, boost::optional<const ComboAddress&> remote, unsigned int count, bool hit);
};
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