aosp12/system/update_engine/common/proxy_resolver.cc

67 lines
2.3 KiB
C++

//
// Copyright (C) 2010 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "update_engine/common/proxy_resolver.h"
#include <base/bind.h>
#include <base/location.h>
using brillo::MessageLoop;
using std::deque;
using std::string;
namespace chromeos_update_engine {
const char kNoProxy[] = "direct://";
const ProxyRequestId kProxyRequestIdNull = brillo::MessageLoop::kTaskIdNull;
DirectProxyResolver::~DirectProxyResolver() {
if (idle_callback_id_ != MessageLoop::kTaskIdNull) {
// The DirectProxyResolver is instantiated as part of the UpdateAttempter
// which is also instantiated by default by the FakeSystemState, even when
// it is not used. We check the manage_shares_id_ before calling the
// MessageLoop::current() since the unit test using a FakeSystemState may
// have not define a MessageLoop for the current thread.
MessageLoop::current()->CancelTask(idle_callback_id_);
idle_callback_id_ = MessageLoop::kTaskIdNull;
}
}
ProxyRequestId DirectProxyResolver::GetProxiesForUrl(
const string& url, const ProxiesResolvedFn& callback) {
idle_callback_id_ = MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&DirectProxyResolver::ReturnCallback,
base::Unretained(this),
callback));
return idle_callback_id_;
}
bool DirectProxyResolver::CancelProxyRequest(ProxyRequestId request) {
return MessageLoop::current()->CancelTask(request);
}
void DirectProxyResolver::ReturnCallback(const ProxiesResolvedFn& callback) {
idle_callback_id_ = MessageLoop::kTaskIdNull;
// Initialize proxy pool with as many proxies as indicated (all identical).
deque<string> proxies(num_proxies_, kNoProxy);
callback.Run(proxies);
}
} // namespace chromeos_update_engine