15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef NET_DNS_DNS_CLIENT_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define NET_DNS_DNS_CLIENT_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/scoped_ptr.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_export.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace net { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class AddressSorter; 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct DnsConfig; 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class DnsTransactionFactory; 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NetLog; 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Convenience wrapper which allows easy injection of DnsTransaction into 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// HostResolverImpl. Pointers returned by the Get* methods are only guaranteed 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// to remain valid until next time SetConfig is called. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NET_EXPORT DnsClient { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~DnsClient() {} 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 253551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // Destroys the current DnsTransactionFactory and creates a new one 263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // according to |config|, unless it is invalid or has |unhandled_options|. 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void SetConfig(const DnsConfig& config) = 0; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns NULL if the current config is not valid. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual const DnsConfig* GetConfig() const = 0; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns NULL if the current config is not valid. 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual DnsTransactionFactory* GetTransactionFactory() = 0; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns NULL if the current config is not valid. 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual AddressSorter* GetAddressSorter() = 0; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Creates default client. 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static scoped_ptr<DnsClient> CreateClient(NetLog* net_log); 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace net 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // NET_DNS_DNS_CLIENT_H_ 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 46