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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef NET_DNS_DNS_CLIENT_H_ | 5 #ifndef NET_DNS_DNS_CLIENT_H_ |
6 #define NET_DNS_DNS_CLIENT_H_ | 6 #define NET_DNS_DNS_CLIENT_H_ |
7 | 7 |
8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
9 #include "net/base/net_export.h" | 9 #include "net/base/net_export.h" |
10 | 10 |
11 namespace net { | 11 namespace net { |
12 | 12 |
13 class AddressSorter; | 13 class AddressSorter; |
14 struct DnsConfig; | 14 struct DnsConfig; |
15 class DnsTransactionFactory; | 15 class DnsTransactionFactory; |
16 class NetLog; | 16 class NetLog; |
17 | 17 |
18 // Convenience wrapper which allows easy injection of DnsTransaction into | 18 // Convenience wrapper which allows easy injection of DnsTransaction into |
19 // HostResolverImpl. Pointers returned by the Get* methods are only guaranteed | 19 // HostResolverImpl. Pointers returned by the Get* methods are only guaranteed |
20 // to remain valid until next time SetConfig is called. | 20 // to remain valid until next time SetConfig is called. |
21 class NET_EXPORT DnsClient { | 21 class NET_EXPORT DnsClient { |
22 public: | 22 public: |
23 virtual ~DnsClient() {} | 23 virtual ~DnsClient() {} |
24 | 24 |
25 // Creates a new DnsTransactionFactory according to the new |config|. | 25 // Destroys the current DnsTransactionFactory and creates a new one |
| 26 // according to |config|, unless it is invalid or has |unhandled_options|. |
26 virtual void SetConfig(const DnsConfig& config) = 0; | 27 virtual void SetConfig(const DnsConfig& config) = 0; |
27 | 28 |
28 // Returns NULL if the current config is not valid. | 29 // Returns NULL if the current config is not valid. |
29 virtual const DnsConfig* GetConfig() const = 0; | 30 virtual const DnsConfig* GetConfig() const = 0; |
30 | 31 |
31 // Returns NULL if the current config is not valid. | 32 // Returns NULL if the current config is not valid. |
32 virtual DnsTransactionFactory* GetTransactionFactory() = 0; | 33 virtual DnsTransactionFactory* GetTransactionFactory() = 0; |
33 | 34 |
34 // Returns NULL if the current config is not valid. | 35 // Returns NULL if the current config is not valid. |
35 virtual AddressSorter* GetAddressSorter() = 0; | 36 virtual AddressSorter* GetAddressSorter() = 0; |
36 | 37 |
37 // Creates default client. | 38 // Creates default client. |
38 static scoped_ptr<DnsClient> CreateClient(NetLog* net_log); | 39 static scoped_ptr<DnsClient> CreateClient(NetLog* net_log); |
39 }; | 40 }; |
40 | 41 |
41 } // namespace net | 42 } // namespace net |
42 | 43 |
43 #endif // NET_DNS_DNS_CLIENT_H_ | 44 #endif // NET_DNS_DNS_CLIENT_H_ |
44 | 45 |
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