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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef NET_DNS_RECORD_PARSED_H_ | |
6 #define NET_DNS_RECORD_PARSED_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/memory/scoped_ptr.h" | |
11 #include "base/time/time.h" | |
12 #include "net/base/net_export.h" | |
13 | |
14 namespace net { | |
15 | |
16 class DnsRecordParser; | |
17 class RecordRdata; | |
18 | |
19 // Parsed record. This is a form of DnsResourceRecord where the rdata section | |
20 // has been parsed into a data structure. | |
21 class NET_EXPORT_PRIVATE RecordParsed { | |
22 public: | |
23 virtual ~RecordParsed(); | |
24 | |
25 // All records are inherently immutable. Return a const pointer. | |
26 static scoped_ptr<const RecordParsed> CreateFrom(DnsRecordParser* parser, | |
27 base::Time time_created); | |
28 | |
29 const std::string& name() const { return name_; } | |
30 uint16 type() const { return type_; } | |
31 uint16 klass() const { return klass_; } | |
32 uint32 ttl() const { return ttl_; } | |
33 | |
34 base::Time time_created() const { return time_created_; } | |
35 | |
36 template <class T> const T* rdata() const { | |
37 if (T::kType != type_) | |
38 return NULL; | |
39 return static_cast<const T*>(rdata_.get()); | |
40 } | |
41 | |
42 // Check if two records have the same data. Ignores time_created and ttl. | |
43 // If |is_mdns| is true, ignore the top bit of the class | |
44 // (the cache flush bit). | |
45 bool IsEqual(const RecordParsed* other, bool is_mdns) const; | |
46 | |
47 private: | |
48 RecordParsed(const std::string& name, uint16 type, uint16 klass, | |
49 uint32 ttl, scoped_ptr<const RecordRdata> rdata, | |
50 base::Time time_created); | |
51 | |
52 std::string name_; // in dotted form | |
53 const uint16 type_; | |
54 const uint16 klass_; | |
55 const uint32 ttl_; | |
56 | |
57 const scoped_ptr<const RecordRdata> rdata_; | |
58 | |
59 const base::Time time_created_; | |
60 }; | |
61 | |
62 } // namespace net | |
63 | |
64 #endif // NET_DNS_RECORD_PARSED_H_ | |
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