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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 "sync/notifier/sync_system_resources.h" | |
6 | |
7 #include <cstdlib> | |
8 #include <cstring> | |
9 #include <string> | |
10 | |
11 #include "base/bind.h" | |
12 #include "base/logging.h" | |
13 #include "base/message_loop/message_loop.h" | |
14 #include "base/stl_util.h" | |
15 #include "base/strings/string_util.h" | |
16 #include "base/strings/stringprintf.h" | |
17 #include "google/cacheinvalidation/deps/callback.h" | |
18 #include "google/cacheinvalidation/include/types.h" | |
19 #include "jingle/notifier/listener/push_client.h" | |
20 #include "sync/notifier/gcm_network_channel.h" | |
21 #include "sync/notifier/gcm_network_channel_delegate.h" | |
22 #include "sync/notifier/invalidation_util.h" | |
23 #include "sync/notifier/push_client_channel.h" | |
24 | |
25 namespace syncer { | |
26 | |
27 SyncLogger::SyncLogger() {} | |
28 SyncLogger::~SyncLogger() {} | |
29 | |
30 void SyncLogger::Log(LogLevel level, const char* file, int line, | |
31 const char* format, ...) { | |
32 logging::LogSeverity log_severity = -2; // VLOG(2) | |
33 bool emit_log = false; | |
34 switch (level) { | |
35 case FINE_LEVEL: | |
36 log_severity = -2; // VLOG(2) | |
37 emit_log = VLOG_IS_ON(2); | |
38 break; | |
39 case INFO_LEVEL: | |
40 log_severity = -1; // VLOG(1) | |
41 emit_log = VLOG_IS_ON(1); | |
42 break; | |
43 case WARNING_LEVEL: | |
44 log_severity = logging::LOG_WARNING; | |
45 emit_log = LOG_IS_ON(WARNING); | |
46 break; | |
47 case SEVERE_LEVEL: | |
48 log_severity = logging::LOG_ERROR; | |
49 emit_log = LOG_IS_ON(ERROR); | |
50 break; | |
51 } | |
52 if (emit_log) { | |
53 va_list ap; | |
54 va_start(ap, format); | |
55 std::string result; | |
56 base::StringAppendV(&result, format, ap); | |
57 logging::LogMessage(file, line, log_severity).stream() << result; | |
58 va_end(ap); | |
59 } | |
60 } | |
61 | |
62 void SyncLogger::SetSystemResources(invalidation::SystemResources* resources) { | |
63 // Do nothing. | |
64 } | |
65 | |
66 SyncInvalidationScheduler::SyncInvalidationScheduler() | |
67 : created_on_loop_(base::MessageLoop::current()), | |
68 is_started_(false), | |
69 is_stopped_(false), | |
70 weak_factory_(this) { | |
71 CHECK(created_on_loop_); | |
72 } | |
73 | |
74 SyncInvalidationScheduler::~SyncInvalidationScheduler() { | |
75 CHECK_EQ(created_on_loop_, base::MessageLoop::current()); | |
76 CHECK(is_stopped_); | |
77 } | |
78 | |
79 void SyncInvalidationScheduler::Start() { | |
80 CHECK_EQ(created_on_loop_, base::MessageLoop::current()); | |
81 CHECK(!is_started_); | |
82 is_started_ = true; | |
83 is_stopped_ = false; | |
84 weak_factory_.InvalidateWeakPtrs(); | |
85 } | |
86 | |
87 void SyncInvalidationScheduler::Stop() { | |
88 CHECK_EQ(created_on_loop_, base::MessageLoop::current()); | |
89 is_stopped_ = true; | |
90 is_started_ = false; | |
91 weak_factory_.InvalidateWeakPtrs(); | |
92 STLDeleteElements(&posted_tasks_); | |
93 posted_tasks_.clear(); | |
94 } | |
95 | |
96 void SyncInvalidationScheduler::Schedule(invalidation::TimeDelta delay, | |
97 invalidation::Closure* task) { | |
98 DCHECK(invalidation::IsCallbackRepeatable(task)); | |
99 CHECK_EQ(created_on_loop_, base::MessageLoop::current()); | |
100 | |
101 if (!is_started_) { | |
102 delete task; | |
103 return; | |
104 } | |
105 | |
106 posted_tasks_.insert(task); | |
107 base::MessageLoop::current()->PostDelayedTask( | |
108 FROM_HERE, base::Bind(&SyncInvalidationScheduler::RunPostedTask, | |
109 weak_factory_.GetWeakPtr(), task), | |
110 delay); | |
111 } | |
112 | |
113 bool SyncInvalidationScheduler::IsRunningOnThread() const { | |
114 return created_on_loop_ == base::MessageLoop::current(); | |
115 } | |
116 | |
117 invalidation::Time SyncInvalidationScheduler::GetCurrentTime() const { | |
118 CHECK_EQ(created_on_loop_, base::MessageLoop::current()); | |
119 return base::Time::Now(); | |
120 } | |
121 | |
122 void SyncInvalidationScheduler::SetSystemResources( | |
123 invalidation::SystemResources* resources) { | |
124 // Do nothing. | |
125 } | |
126 | |
127 void SyncInvalidationScheduler::RunPostedTask(invalidation::Closure* task) { | |
128 CHECK_EQ(created_on_loop_, base::MessageLoop::current()); | |
129 task->Run(); | |
130 posted_tasks_.erase(task); | |
131 delete task; | |
132 } | |
133 | |
134 SyncNetworkChannel::SyncNetworkChannel() | |
135 : invalidator_state_(DEFAULT_INVALIDATION_ERROR), | |
136 received_messages_count_(0) {} | |
137 | |
138 SyncNetworkChannel::~SyncNetworkChannel() { | |
139 STLDeleteElements(&network_status_receivers_); | |
140 } | |
141 | |
142 void SyncNetworkChannel::SetMessageReceiver( | |
143 invalidation::MessageCallback* incoming_receiver) { | |
144 incoming_receiver_.reset(incoming_receiver); | |
145 } | |
146 | |
147 void SyncNetworkChannel::AddNetworkStatusReceiver( | |
148 invalidation::NetworkStatusCallback* network_status_receiver) { | |
149 network_status_receiver->Run(invalidator_state_ == INVALIDATIONS_ENABLED); | |
150 network_status_receivers_.push_back(network_status_receiver); | |
151 } | |
152 | |
153 void SyncNetworkChannel::SetSystemResources( | |
154 invalidation::SystemResources* resources) { | |
155 // Do nothing. | |
156 } | |
157 | |
158 void SyncNetworkChannel::AddObserver(Observer* observer) { | |
159 observers_.AddObserver(observer); | |
160 } | |
161 | |
162 void SyncNetworkChannel::RemoveObserver(Observer* observer) { | |
163 observers_.RemoveObserver(observer); | |
164 } | |
165 | |
166 scoped_ptr<SyncNetworkChannel> SyncNetworkChannel::CreatePushClientChannel( | |
167 const notifier::NotifierOptions& notifier_options) { | |
168 scoped_ptr<notifier::PushClient> push_client( | |
169 notifier::PushClient::CreateDefaultOnIOThread(notifier_options)); | |
170 return scoped_ptr<SyncNetworkChannel>( | |
171 new PushClientChannel(push_client.Pass())); | |
172 } | |
173 | |
174 scoped_ptr<SyncNetworkChannel> SyncNetworkChannel::CreateGCMNetworkChannel( | |
175 scoped_refptr<net::URLRequestContextGetter> request_context_getter, | |
176 scoped_ptr<GCMNetworkChannelDelegate> delegate) { | |
177 return scoped_ptr<SyncNetworkChannel>(new GCMNetworkChannel( | |
178 request_context_getter, delegate.Pass())); | |
179 } | |
180 | |
181 void SyncNetworkChannel::NotifyStateChange(InvalidatorState invalidator_state) { | |
182 // Remember state for future NetworkStatusReceivers. | |
183 invalidator_state_ = invalidator_state; | |
184 // Notify NetworkStatusReceivers in cacheinvalidation. | |
185 for (NetworkStatusReceiverList::const_iterator it = | |
186 network_status_receivers_.begin(); | |
187 it != network_status_receivers_.end(); ++it) { | |
188 (*it)->Run(invalidator_state_ == INVALIDATIONS_ENABLED); | |
189 } | |
190 // Notify observers. | |
191 FOR_EACH_OBSERVER(Observer, observers_, | |
192 OnNetworkChannelStateChanged(invalidator_state_)); | |
193 } | |
194 | |
195 bool SyncNetworkChannel::DeliverIncomingMessage(const std::string& message) { | |
196 if (!incoming_receiver_) { | |
197 DLOG(ERROR) << "No receiver for incoming notification"; | |
198 return false; | |
199 } | |
200 received_messages_count_++; | |
201 incoming_receiver_->Run(message); | |
202 return true; | |
203 } | |
204 | |
205 int SyncNetworkChannel::GetReceivedMessagesCount() const { | |
206 return received_messages_count_; | |
207 } | |
208 | |
209 SyncStorage::SyncStorage(StateWriter* state_writer, | |
210 invalidation::Scheduler* scheduler) | |
211 : state_writer_(state_writer), | |
212 scheduler_(scheduler) { | |
213 DCHECK(state_writer_); | |
214 DCHECK(scheduler_); | |
215 } | |
216 | |
217 SyncStorage::~SyncStorage() {} | |
218 | |
219 void SyncStorage::WriteKey(const std::string& key, const std::string& value, | |
220 invalidation::WriteKeyCallback* done) { | |
221 CHECK(state_writer_); | |
222 // TODO(ghc): actually write key,value associations, and don't invoke the | |
223 // callback until the operation completes. | |
224 state_writer_->WriteState(value); | |
225 cached_state_ = value; | |
226 // According to the cache invalidation API folks, we can do this as | |
227 // long as we make sure to clear the persistent state that we start | |
228 // up the cache invalidation client with. However, we musn't do it | |
229 // right away, as we may be called under a lock that the callback | |
230 // uses. | |
231 scheduler_->Schedule( | |
232 invalidation::Scheduler::NoDelay(), | |
233 invalidation::NewPermanentCallback( | |
234 this, &SyncStorage::RunAndDeleteWriteKeyCallback, | |
235 done)); | |
236 } | |
237 | |
238 void SyncStorage::ReadKey(const std::string& key, | |
239 invalidation::ReadKeyCallback* done) { | |
240 DCHECK(scheduler_->IsRunningOnThread()) << "not running on scheduler thread"; | |
241 RunAndDeleteReadKeyCallback(done, cached_state_); | |
242 } | |
243 | |
244 void SyncStorage::DeleteKey(const std::string& key, | |
245 invalidation::DeleteKeyCallback* done) { | |
246 // TODO(ghc): Implement. | |
247 LOG(WARNING) << "ignoring call to DeleteKey(" << key << ", callback)"; | |
248 } | |
249 | |
250 void SyncStorage::ReadAllKeys(invalidation::ReadAllKeysCallback* done) { | |
251 // TODO(ghc): Implement. | |
252 LOG(WARNING) << "ignoring call to ReadAllKeys(callback)"; | |
253 } | |
254 | |
255 void SyncStorage::SetSystemResources( | |
256 invalidation::SystemResources* resources) { | |
257 // Do nothing. | |
258 } | |
259 | |
260 void SyncStorage::RunAndDeleteWriteKeyCallback( | |
261 invalidation::WriteKeyCallback* callback) { | |
262 callback->Run( | |
263 invalidation::Status(invalidation::Status::SUCCESS, std::string())); | |
264 delete callback; | |
265 } | |
266 | |
267 void SyncStorage::RunAndDeleteReadKeyCallback( | |
268 invalidation::ReadKeyCallback* callback, const std::string& value) { | |
269 callback->Run(std::make_pair( | |
270 invalidation::Status(invalidation::Status::SUCCESS, std::string()), | |
271 value)); | |
272 delete callback; | |
273 } | |
274 | |
275 SyncSystemResources::SyncSystemResources( | |
276 SyncNetworkChannel* sync_network_channel, | |
277 StateWriter* state_writer) | |
278 : is_started_(false), | |
279 logger_(new SyncLogger()), | |
280 internal_scheduler_(new SyncInvalidationScheduler()), | |
281 listener_scheduler_(new SyncInvalidationScheduler()), | |
282 storage_(new SyncStorage(state_writer, internal_scheduler_.get())), | |
283 sync_network_channel_(sync_network_channel) { | |
284 } | |
285 | |
286 SyncSystemResources::~SyncSystemResources() { | |
287 Stop(); | |
288 } | |
289 | |
290 void SyncSystemResources::Start() { | |
291 internal_scheduler_->Start(); | |
292 listener_scheduler_->Start(); | |
293 is_started_ = true; | |
294 } | |
295 | |
296 void SyncSystemResources::Stop() { | |
297 internal_scheduler_->Stop(); | |
298 listener_scheduler_->Stop(); | |
299 } | |
300 | |
301 bool SyncSystemResources::IsStarted() const { | |
302 return is_started_; | |
303 } | |
304 | |
305 void SyncSystemResources::set_platform(const std::string& platform) { | |
306 platform_ = platform; | |
307 } | |
308 | |
309 std::string SyncSystemResources::platform() const { | |
310 return platform_; | |
311 } | |
312 | |
313 SyncLogger* SyncSystemResources::logger() { | |
314 return logger_.get(); | |
315 } | |
316 | |
317 SyncStorage* SyncSystemResources::storage() { | |
318 return storage_.get(); | |
319 } | |
320 | |
321 SyncNetworkChannel* SyncSystemResources::network() { | |
322 return sync_network_channel_; | |
323 } | |
324 | |
325 SyncInvalidationScheduler* SyncSystemResources::internal_scheduler() { | |
326 return internal_scheduler_.get(); | |
327 } | |
328 | |
329 SyncInvalidationScheduler* SyncSystemResources::listener_scheduler() { | |
330 return listener_scheduler_.get(); | |
331 } | |
332 | |
333 } // namespace syncer | |
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