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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_DNS_RECORD_PARSED_H_
#define NET_DNS_RECORD_PARSED_H_
#include <stdint.h>
#include <memory>
#include <string>
#include "base/time/time.h"
#include "net/base/net_export.h"
namespace net {
class DnsRecordParser;
class RecordRdata;
// Parsed record. This is a form of DnsResourceRecord where the rdata section
// has been parsed into a data structure.
class NET_EXPORT_PRIVATE RecordParsed {
public:
virtual ~RecordParsed();
// All records are inherently immutable. Return a const pointer.
static std::unique_ptr<const RecordParsed> CreateFrom(
DnsRecordParser* parser,
base::Time time_created);
const std::string& name() const { return name_; }
uint16_t type() const { return type_; }
uint16_t klass() const { return klass_; }
uint32_t ttl() const { return ttl_; }
base::Time time_created() const { return time_created_; }
template <class T> const T* rdata() const {
if (T::kType != type_)
return NULL;
return static_cast<const T*>(rdata_.get());
}
// Check if two records have the same data. Ignores time_created and ttl.
// If |is_mdns| is true, ignore the top bit of the class
// (the cache flush bit).
bool IsEqual(const RecordParsed* other, bool is_mdns) const;
private:
RecordParsed(const std::string& name,
uint16_t type,
uint16_t klass,
uint32_t ttl,
std::unique_ptr<const RecordRdata> rdata,
base::Time time_created);
std::string name_; // in dotted form
const uint16_t type_;
const uint16_t klass_;
const uint32_t ttl_;
const std::unique_ptr<const RecordRdata> rdata_;
const base::Time time_created_;
};
} // namespace net
#endif // NET_DNS_RECORD_PARSED_H_