1 // 2 // Copyright (C) 2010 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #include "update_engine/proxy_resolver.h" 18 19 #include <base/bind.h> 20 #include <base/location.h> 21 22 using brillo::MessageLoop; 23 using std::deque; 24 using std::string; 25 26 namespace chromeos_update_engine { 27 28 const char kNoProxy[] = "direct://"; 29 const ProxyRequestId kProxyRequestIdNull = brillo::MessageLoop::kTaskIdNull; 30 31 DirectProxyResolver::~DirectProxyResolver() { 32 if (idle_callback_id_ != MessageLoop::kTaskIdNull) { 33 // The DirectProxyResolver is instantiated as part of the UpdateAttempter 34 // which is also instantiated by default by the FakeSystemState, even when 35 // it is not used. We check the manage_shares_id_ before calling the 36 // MessageLoop::current() since the unit test using a FakeSystemState may 37 // have not define a MessageLoop for the current thread. 38 MessageLoop::current()->CancelTask(idle_callback_id_); 39 idle_callback_id_ = MessageLoop::kTaskIdNull; 40 } 41 } 42 43 ProxyRequestId DirectProxyResolver::GetProxiesForUrl( 44 const string& url, const ProxiesResolvedFn& callback) { 45 idle_callback_id_ = MessageLoop::current()->PostTask( 46 FROM_HERE, 47 base::Bind(&DirectProxyResolver::ReturnCallback, 48 base::Unretained(this), 49 callback)); 50 return idle_callback_id_; 51 } 52 53 bool DirectProxyResolver::CancelProxyRequest(ProxyRequestId request) { 54 return MessageLoop::current()->CancelTask(request); 55 } 56 57 void DirectProxyResolver::ReturnCallback(const ProxiesResolvedFn& callback) { 58 idle_callback_id_ = MessageLoop::kTaskIdNull; 59 60 // Initialize proxy pool with as many proxies as indicated (all identical). 61 deque<string> proxies(num_proxies_, kNoProxy); 62 63 callback.Run(proxies); 64 } 65 66 67 } // namespace chromeos_update_engine 68
