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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_QUERY_H_ | 5 #ifndef NET_DNS_DNS_QUERY_H_ |
| 6 #define NET_DNS_DNS_QUERY_H_ | 6 #define NET_DNS_DNS_QUERY_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include <string> | 9 #include <string> |
| 10 | 10 |
| 11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
| 12 #include "net/base/net_api.h" | 12 #include "net/base/net_export.h" |
| 13 #include "net/base/rand_callback.h" | 13 #include "net/base/rand_callback.h" |
| 14 | 14 |
| 15 namespace net { | 15 namespace net { |
| 16 | 16 |
| 17 class IOBufferWithSize; | 17 class IOBufferWithSize; |
| 18 | 18 |
| 19 // Represents on-the-wire DNS query message as an object. | 19 // Represents on-the-wire DNS query message as an object. |
| 20 class NET_TEST DnsQuery { | 20 class NET_EXPORT_PRIVATE DnsQuery { |
| 21 public: | 21 public: |
| 22 // Constructs a query message from |qname| which *MUST* be in a valid | 22 // Constructs a query message from |qname| which *MUST* be in a valid |
| 23 // DNS name format, and |qtype| which must be either kDNS_A or kDNS_AAAA. | 23 // DNS name format, and |qtype| which must be either kDNS_A or kDNS_AAAA. |
| 24 | 24 |
| 25 // Every generated object has a random ID, hence two objects generated | 25 // Every generated object has a random ID, hence two objects generated |
| 26 // with the same set of constructor arguments are generally not equal; | 26 // with the same set of constructor arguments are generally not equal; |
| 27 // there is a 1/2^16 chance of them being equal due to size of |id_|. | 27 // there is a 1/2^16 chance of them being equal due to size of |id_|. |
| 28 DnsQuery(const std::string& qname, | 28 DnsQuery(const std::string& qname, |
| 29 uint16 qtype, | 29 uint16 qtype, |
| 30 const RandIntCallback& rand_int_cb); | 30 const RandIntCallback& rand_int_cb); |
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| 63 | 63 |
| 64 // PRNG function for generating IDs. | 64 // PRNG function for generating IDs. |
| 65 RandIntCallback rand_int_cb_; | 65 RandIntCallback rand_int_cb_; |
| 66 | 66 |
| 67 DISALLOW_COPY_AND_ASSIGN(DnsQuery); | 67 DISALLOW_COPY_AND_ASSIGN(DnsQuery); |
| 68 }; | 68 }; |
| 69 | 69 |
| 70 } // namespace net | 70 } // namespace net |
| 71 | 71 |
| 72 #endif // NET_DNS_DNS_QUERY_H_ | 72 #endif // NET_DNS_DNS_QUERY_H_ |
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