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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/local_discovery/service_discovery_client_mdns.h" | |
| 6 | |
| 7 #include "base/metrics/histogram.h" | |
| 8 #include "chrome/browser/local_discovery/service_discovery_host_client.h" | |
| 9 #include "content/public/browser/browser_thread.h" | |
| 10 | |
| 11 namespace local_discovery { | |
| 12 | |
| 13 using content::BrowserThread; | |
| 14 | |
| 15 namespace { | |
| 16 const int kMaxRestartAttempts = 10; | |
| 17 const int kRestartDelayOnNetworkChangeSeconds = 3; | |
| 18 const int kReportSuccessAfterSeconds = 10; | |
| 19 } | |
| 20 | |
| 21 scoped_ptr<ServiceWatcher> ServiceDiscoveryClientMdns::CreateServiceWatcher( | |
| 22 const std::string& service_type, | |
| 23 const ServiceWatcher::UpdatedCallback& callback) { | |
| 24 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 25 return host_client_->CreateServiceWatcher(service_type, callback); | |
| 26 } | |
| 27 | |
| 28 scoped_ptr<ServiceResolver> ServiceDiscoveryClientMdns::CreateServiceResolver( | |
| 29 const std::string& service_name, | |
| 30 const ServiceResolver::ResolveCompleteCallback& callback) { | |
| 31 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 32 return host_client_->CreateServiceResolver(service_name, callback); | |
| 33 } | |
| 34 | |
| 35 scoped_ptr<LocalDomainResolver> | |
| 36 ServiceDiscoveryClientMdns::CreateLocalDomainResolver( | |
| 37 const std::string& domain, | |
| 38 net::AddressFamily address_family, | |
| 39 const LocalDomainResolver::IPAddressCallback& callback) { | |
| 40 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 41 return host_client_->CreateLocalDomainResolver(domain, address_family, | |
| 42 callback); | |
| 43 } | |
| 44 | |
| 45 ServiceDiscoveryClientMdns::ServiceDiscoveryClientMdns() | |
| 46 : restart_attempts_(kMaxRestartAttempts), | |
| 47 weak_ptr_factory_(this) { | |
| 48 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 49 net::NetworkChangeNotifier::AddNetworkChangeObserver(this); | |
| 50 StartNewClient(); | |
| 51 } | |
| 52 | |
| 53 ServiceDiscoveryClientMdns::~ServiceDiscoveryClientMdns() { | |
| 54 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 55 net::NetworkChangeNotifier::RemoveNetworkChangeObserver(this); | |
| 56 host_client_->Shutdown(); | |
| 57 } | |
| 58 | |
| 59 void ServiceDiscoveryClientMdns::OnNetworkChanged( | |
| 60 net::NetworkChangeNotifier::ConnectionType type) { | |
| 61 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 62 // Only network changes resets kMaxRestartAttempts. | |
| 63 restart_attempts_ = kMaxRestartAttempts; | |
| 64 ScheduleStartNewClient(); | |
| 65 } | |
| 66 | |
| 67 void ServiceDiscoveryClientMdns::ScheduleStartNewClient() { | |
| 68 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 69 host_client_->Shutdown(); | |
| 70 weak_ptr_factory_.InvalidateWeakPtrs(); | |
| 71 base::MessageLoop::current()->PostDelayedTask( | |
| 72 FROM_HERE, | |
| 73 base::Bind(&ServiceDiscoveryClientMdns::StartNewClient, | |
| 74 weak_ptr_factory_.GetWeakPtr()), | |
| 75 base::TimeDelta::FromSeconds(kRestartDelayOnNetworkChangeSeconds)); | |
| 76 } | |
| 77 | |
| 78 void ServiceDiscoveryClientMdns::StartNewClient() { | |
| 79 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 80 scoped_refptr<ServiceDiscoveryHostClient> old_client = host_client_; | |
| 81 if ((restart_attempts_--) > 0) { | |
| 82 host_client_ = new ServiceDiscoveryHostClient(); | |
| 83 host_client_->Start( | |
| 84 base::Bind(&ServiceDiscoveryClientMdns::ScheduleStartNewClient, | |
| 85 weak_ptr_factory_.GetWeakPtr())); | |
| 86 | |
| 87 base::MessageLoop::current()->PostDelayedTask( | |
| 88 FROM_HERE, | |
| 89 base::Bind(&ServiceDiscoveryClientMdns::ReportSuccess, | |
| 90 weak_ptr_factory_.GetWeakPtr()), | |
| 91 base::TimeDelta::FromSeconds(kReportSuccessAfterSeconds)); | |
| 92 } else { | |
| 93 restart_attempts_ = -1; | |
| 94 ReportSuccess(); | |
| 95 } | |
| 96 // Run when host_client_ is created. Callbacks created by InvalidateWatchers | |
| 97 // may create new watchers. | |
| 98 if (old_client) | |
| 99 old_client->InvalidateWatchers(); | |
| 100 } | |
| 101 | |
| 102 void ServiceDiscoveryClientMdns::ReportSuccess() { | |
| 103 UMA_HISTOGRAM_COUNTS_100("LocalDiscovery.ClientRestartAttempts", | |
| 104 kMaxRestartAttempts - restart_attempts_); | |
| 105 } | |
| 106 | |
| 107 } // namespace local_discovery | |
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Chromium Code Reviews
Issue 251023005:
Renamed ServiceDiscoveryClientMdns to ServiceDiscoveryClientUtility. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src