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| 1 // Copyright (c) 2012 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 "net/base/network_config_watcher_mac.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/compiler_specific.h" | |
| 11 #include "base/memory/weak_ptr.h" | |
| 12 #include "base/message_loop/message_loop.h" | |
| 13 #include "base/threading/thread.h" | |
| 14 #include "base/threading/thread_restrictions.h" | |
| 15 | |
| 16 namespace net { | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 #if !defined(OS_IOS) | |
| 21 // Called back by OS. Calls OnNetworkConfigChange(). | |
| 22 void DynamicStoreCallback(SCDynamicStoreRef /* store */, | |
| 23 CFArrayRef changed_keys, | |
| 24 void* config_delegate) { | |
| 25 NetworkConfigWatcherMac::Delegate* net_config_delegate = | |
| 26 static_cast<NetworkConfigWatcherMac::Delegate*>(config_delegate); | |
| 27 net_config_delegate->OnNetworkConfigChange(changed_keys); | |
| 28 } | |
| 29 #endif // !defined(OS_IOS) | |
| 30 | |
| 31 class NetworkConfigWatcherMacThread : public base::Thread { | |
| 32 public: | |
| 33 NetworkConfigWatcherMacThread(NetworkConfigWatcherMac::Delegate* delegate); | |
| 34 ~NetworkConfigWatcherMacThread() override; | |
| 35 | |
| 36 protected: | |
| 37 // base::Thread | |
| 38 void Init() override; | |
| 39 void CleanUp() override; | |
| 40 | |
| 41 private: | |
| 42 // The SystemConfiguration calls in this function can lead to contention early | |
| 43 // on, so we invoke this function later on in startup to keep it fast. | |
| 44 void InitNotifications(); | |
| 45 | |
| 46 base::ScopedCFTypeRef<CFRunLoopSourceRef> run_loop_source_; | |
| 47 NetworkConfigWatcherMac::Delegate* const delegate_; | |
| 48 base::WeakPtrFactory<NetworkConfigWatcherMacThread> weak_factory_; | |
| 49 | |
| 50 DISALLOW_COPY_AND_ASSIGN(NetworkConfigWatcherMacThread); | |
| 51 }; | |
| 52 | |
| 53 NetworkConfigWatcherMacThread::NetworkConfigWatcherMacThread( | |
| 54 NetworkConfigWatcherMac::Delegate* delegate) | |
| 55 : base::Thread("NetworkConfigWatcher"), | |
| 56 delegate_(delegate), | |
| 57 weak_factory_(this) {} | |
| 58 | |
| 59 NetworkConfigWatcherMacThread::~NetworkConfigWatcherMacThread() { | |
| 60 // Allow IO because Stop() calls PlatformThread::Join(), which is a blocking | |
| 61 // operation. This is expected during shutdown. | |
| 62 base::ThreadRestrictions::ScopedAllowIO allow_io; | |
| 63 | |
| 64 Stop(); | |
| 65 } | |
| 66 | |
| 67 void NetworkConfigWatcherMacThread::Init() { | |
| 68 // Disallow IO to make sure NetworkConfigWatcherMacThread's helper thread does | |
| 69 // not perform blocking operations. | |
| 70 base::ThreadRestrictions::SetIOAllowed(false); | |
| 71 | |
| 72 delegate_->Init(); | |
| 73 | |
| 74 // TODO(willchan): Look to see if there's a better signal for when it's ok to | |
| 75 // initialize this, rather than just delaying it by a fixed time. | |
| 76 const base::TimeDelta kInitializationDelay = base::TimeDelta::FromSeconds(1); | |
| 77 message_loop()->PostDelayedTask( | |
| 78 FROM_HERE, | |
| 79 base::Bind(&NetworkConfigWatcherMacThread::InitNotifications, | |
| 80 weak_factory_.GetWeakPtr()), | |
| 81 kInitializationDelay); | |
| 82 } | |
| 83 | |
| 84 void NetworkConfigWatcherMacThread::CleanUp() { | |
| 85 if (!run_loop_source_.get()) | |
| 86 return; | |
| 87 | |
| 88 CFRunLoopRemoveSource(CFRunLoopGetCurrent(), run_loop_source_.get(), | |
| 89 kCFRunLoopCommonModes); | |
| 90 run_loop_source_.reset(); | |
| 91 } | |
| 92 | |
| 93 void NetworkConfigWatcherMacThread::InitNotifications() { | |
| 94 #if !defined(OS_IOS) | |
| 95 // SCDynamicStore API does not exist on iOS. | |
| 96 // Add a run loop source for a dynamic store to the current run loop. | |
| 97 SCDynamicStoreContext context = { | |
| 98 0, // Version 0. | |
| 99 delegate_, // User data. | |
| 100 NULL, // This is not reference counted. No retain function. | |
| 101 NULL, // This is not reference counted. No release function. | |
| 102 NULL, // No description for this. | |
| 103 }; | |
| 104 base::ScopedCFTypeRef<SCDynamicStoreRef> store(SCDynamicStoreCreate( | |
| 105 NULL, CFSTR("org.chromium"), DynamicStoreCallback, &context)); | |
| 106 run_loop_source_.reset(SCDynamicStoreCreateRunLoopSource( | |
| 107 NULL, store.get(), 0)); | |
| 108 CFRunLoopAddSource(CFRunLoopGetCurrent(), run_loop_source_.get(), | |
| 109 kCFRunLoopCommonModes); | |
| 110 #endif // !defined(OS_IOS) | |
| 111 | |
| 112 // Set up notifications for interface and IP address changes. | |
| 113 delegate_->StartReachabilityNotifications(); | |
| 114 #if !defined(OS_IOS) | |
| 115 delegate_->SetDynamicStoreNotificationKeys(store.get()); | |
| 116 #endif // !defined(OS_IOS) | |
| 117 } | |
| 118 | |
| 119 } // namespace | |
| 120 | |
| 121 NetworkConfigWatcherMac::NetworkConfigWatcherMac(Delegate* delegate) | |
| 122 : notifier_thread_(new NetworkConfigWatcherMacThread(delegate)) { | |
| 123 // We create this notifier thread because the notification implementation | |
| 124 // needs a thread with a CFRunLoop, and there's no guarantee that | |
| 125 // MessageLoop::current() meets that criterion. | |
| 126 base::Thread::Options thread_options(base::MessageLoop::TYPE_UI, 0); | |
| 127 notifier_thread_->StartWithOptions(thread_options); | |
| 128 } | |
| 129 | |
| 130 NetworkConfigWatcherMac::~NetworkConfigWatcherMac() {} | |
| 131 | |
| 132 } // namespace net | |
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Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master