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| 1 /* | 1 /* |
| 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
| 11 #if defined(WEBRTC_POSIX) | 11 #if defined(WEBRTC_POSIX) |
| 12 #include <sys/time.h> | 12 #include <sys/time.h> |
| 13 #endif | 13 #endif |
| 14 | 14 |
| 15 #include <algorithm> | 15 #include <algorithm> |
| 16 | 16 |
| 17 #include "webrtc/base/common.h" | 17 #include "webrtc/base/common.h" |
| 18 #include "webrtc/base/logging.h" | 18 #include "webrtc/base/logging.h" |
| 19 #include "webrtc/base/messagequeue.h" | 19 #include "webrtc/base/messagequeue.h" |
| 20 #if defined(__native_client__) | 20 #if defined(__native_client__) |
| 21 #include "webrtc/base/nullsocketserver.h" | 21 #include "webrtc/base/nullsocketserver.h" |
| 22 typedef rtc::NullSocketServer DefaultSocketServer; | 22 typedef rtc::NullSocketServer DefaultSocketServer; |
| 23 #else | 23 #else |
| 24 #include "webrtc/base/physicalsocketserver.h" | 24 #include "webrtc/base/physicalsocketserver.h" |
| 25 typedef rtc::PhysicalSocketServer DefaultSocketServer; | 25 typedef rtc::PhysicalSocketServer DefaultSocketServer; |
| 26 #endif | 26 #endif |
| 27 | 27 |
| 28 namespace rtc { | 28 namespace rtc { |
| 29 | 29 |
| 30 const uint32 kMaxMsgLatency = 150; // 150 ms | 30 const uint32_t kMaxMsgLatency = 150; // 150 ms |
| 31 | 31 |
| 32 //------------------------------------------------------------------ | 32 //------------------------------------------------------------------ |
| 33 // MessageQueueManager | 33 // MessageQueueManager |
| 34 | 34 |
| 35 MessageQueueManager* MessageQueueManager::instance_ = NULL; | 35 MessageQueueManager* MessageQueueManager::instance_ = NULL; |
| 36 | 36 |
| 37 MessageQueueManager* MessageQueueManager::Instance() { | 37 MessageQueueManager* MessageQueueManager::Instance() { |
| 38 // Note: This is not thread safe, but it is first called before threads are | 38 // Note: This is not thread safe, but it is first called before threads are |
| 39 // spawned. | 39 // spawned. |
| 40 if (!instance_) | 40 if (!instance_) |
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| 181 if (fPeekKeep_) { | 181 if (fPeekKeep_) { |
| 182 *pmsg = msgPeek_; | 182 *pmsg = msgPeek_; |
| 183 fPeekKeep_ = false; | 183 fPeekKeep_ = false; |
| 184 return true; | 184 return true; |
| 185 } | 185 } |
| 186 | 186 |
| 187 // Get w/wait + timer scan / dispatch + socket / event multiplexer dispatch | 187 // Get w/wait + timer scan / dispatch + socket / event multiplexer dispatch |
| 188 | 188 |
| 189 int cmsTotal = cmsWait; | 189 int cmsTotal = cmsWait; |
| 190 int cmsElapsed = 0; | 190 int cmsElapsed = 0; |
| 191 uint32 msStart = Time(); | 191 uint32_t msStart = Time(); |
| 192 uint32 msCurrent = msStart; | 192 uint32_t msCurrent = msStart; |
| 193 while (true) { | 193 while (true) { |
| 194 // Check for sent messages | 194 // Check for sent messages |
| 195 ReceiveSends(); | 195 ReceiveSends(); |
| 196 | 196 |
| 197 // Check for posted events | 197 // Check for posted events |
| 198 int cmsDelayNext = kForever; | 198 int cmsDelayNext = kForever; |
| 199 bool first_pass = true; | 199 bool first_pass = true; |
| 200 while (true) { | 200 while (true) { |
| 201 // All queue operations need to be locked, but nothing else in this loop | 201 // All queue operations need to be locked, but nothing else in this loop |
| 202 // (specifically handling disposed message) can happen inside the crit. | 202 // (specifically handling disposed message) can happen inside the crit. |
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| 220 if (msgq_.empty()) { | 220 if (msgq_.empty()) { |
| 221 break; | 221 break; |
| 222 } else { | 222 } else { |
| 223 *pmsg = msgq_.front(); | 223 *pmsg = msgq_.front(); |
| 224 msgq_.pop_front(); | 224 msgq_.pop_front(); |
| 225 } | 225 } |
| 226 } // crit_ is released here. | 226 } // crit_ is released here. |
| 227 | 227 |
| 228 // Log a warning for time-sensitive messages that we're late to deliver. | 228 // Log a warning for time-sensitive messages that we're late to deliver. |
| 229 if (pmsg->ts_sensitive) { | 229 if (pmsg->ts_sensitive) { |
| 230 int32 delay = TimeDiff(msCurrent, pmsg->ts_sensitive); | 230 int32_t delay = TimeDiff(msCurrent, pmsg->ts_sensitive); |
| 231 if (delay > 0) { | 231 if (delay > 0) { |
| 232 LOG_F(LS_WARNING) << "id: " << pmsg->message_id << " delay: " | 232 LOG_F(LS_WARNING) << "id: " << pmsg->message_id << " delay: " |
| 233 << (delay + kMaxMsgLatency) << "ms"; | 233 << (delay + kMaxMsgLatency) << "ms"; |
| 234 } | 234 } |
| 235 } | 235 } |
| 236 // If this was a dispose message, delete it and skip it. | 236 // If this was a dispose message, delete it and skip it. |
| 237 if (MQID_DISPOSE == pmsg->message_id) { | 237 if (MQID_DISPOSE == pmsg->message_id) { |
| 238 ASSERT(NULL == pmsg->phandler); | 238 ASSERT(NULL == pmsg->phandler); |
| 239 delete pmsg->pdata; | 239 delete pmsg->pdata; |
| 240 *pmsg = Message(); | 240 *pmsg = Message(); |
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| 269 if (cmsElapsed >= cmsWait) | 269 if (cmsElapsed >= cmsWait) |
| 270 return false; | 270 return false; |
| 271 } | 271 } |
| 272 } | 272 } |
| 273 return false; | 273 return false; |
| 274 } | 274 } |
| 275 | 275 |
| 276 void MessageQueue::ReceiveSends() { | 276 void MessageQueue::ReceiveSends() { |
| 277 } | 277 } |
| 278 | 278 |
| 279 void MessageQueue::Post(MessageHandler *phandler, uint32 id, | 279 void MessageQueue::Post(MessageHandler* phandler, |
| 280 MessageData *pdata, bool time_sensitive) { | 280 uint32_t id, |
| 281 MessageData* pdata, |
| 282 bool time_sensitive) { |
| 281 if (fStop_) | 283 if (fStop_) |
| 282 return; | 284 return; |
| 283 | 285 |
| 284 // Keep thread safe | 286 // Keep thread safe |
| 285 // Add the message to the end of the queue | 287 // Add the message to the end of the queue |
| 286 // Signal for the multiplexer to return | 288 // Signal for the multiplexer to return |
| 287 | 289 |
| 288 CritScope cs(&crit_); | 290 CritScope cs(&crit_); |
| 289 Message msg; | 291 Message msg; |
| 290 msg.phandler = phandler; | 292 msg.phandler = phandler; |
| 291 msg.message_id = id; | 293 msg.message_id = id; |
| 292 msg.pdata = pdata; | 294 msg.pdata = pdata; |
| 293 if (time_sensitive) { | 295 if (time_sensitive) { |
| 294 msg.ts_sensitive = Time() + kMaxMsgLatency; | 296 msg.ts_sensitive = Time() + kMaxMsgLatency; |
| 295 } | 297 } |
| 296 msgq_.push_back(msg); | 298 msgq_.push_back(msg); |
| 297 ss_->WakeUp(); | 299 ss_->WakeUp(); |
| 298 } | 300 } |
| 299 | 301 |
| 300 void MessageQueue::PostDelayed(int cmsDelay, | 302 void MessageQueue::PostDelayed(int cmsDelay, |
| 301 MessageHandler* phandler, | 303 MessageHandler* phandler, |
| 302 uint32 id, | 304 uint32_t id, |
| 303 MessageData* pdata) { | 305 MessageData* pdata) { |
| 304 return DoDelayPost(cmsDelay, TimeAfter(cmsDelay), phandler, id, pdata); | 306 return DoDelayPost(cmsDelay, TimeAfter(cmsDelay), phandler, id, pdata); |
| 305 } | 307 } |
| 306 | 308 |
| 307 void MessageQueue::PostAt(uint32 tstamp, | 309 void MessageQueue::PostAt(uint32_t tstamp, |
| 308 MessageHandler* phandler, | 310 MessageHandler* phandler, |
| 309 uint32 id, | 311 uint32_t id, |
| 310 MessageData* pdata) { | 312 MessageData* pdata) { |
| 311 return DoDelayPost(TimeUntil(tstamp), tstamp, phandler, id, pdata); | 313 return DoDelayPost(TimeUntil(tstamp), tstamp, phandler, id, pdata); |
| 312 } | 314 } |
| 313 | 315 |
| 314 void MessageQueue::DoDelayPost(int cmsDelay, uint32 tstamp, | 316 void MessageQueue::DoDelayPost(int cmsDelay, |
| 315 MessageHandler *phandler, uint32 id, MessageData* pdata) { | 317 uint32_t tstamp, |
| 318 MessageHandler* phandler, |
| 319 uint32_t id, |
| 320 MessageData* pdata) { |
| 316 if (fStop_) | 321 if (fStop_) |
| 317 return; | 322 return; |
| 318 | 323 |
| 319 // Keep thread safe | 324 // Keep thread safe |
| 320 // Add to the priority queue. Gets sorted soonest first. | 325 // Add to the priority queue. Gets sorted soonest first. |
| 321 // Signal for the multiplexer to return. | 326 // Signal for the multiplexer to return. |
| 322 | 327 |
| 323 CritScope cs(&crit_); | 328 CritScope cs(&crit_); |
| 324 Message msg; | 329 Message msg; |
| 325 msg.phandler = phandler; | 330 msg.phandler = phandler; |
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| 343 if (!dmsgq_.empty()) { | 348 if (!dmsgq_.empty()) { |
| 344 int delay = TimeUntil(dmsgq_.top().msTrigger_); | 349 int delay = TimeUntil(dmsgq_.top().msTrigger_); |
| 345 if (delay < 0) | 350 if (delay < 0) |
| 346 delay = 0; | 351 delay = 0; |
| 347 return delay; | 352 return delay; |
| 348 } | 353 } |
| 349 | 354 |
| 350 return kForever; | 355 return kForever; |
| 351 } | 356 } |
| 352 | 357 |
| 353 void MessageQueue::Clear(MessageHandler *phandler, uint32 id, | 358 void MessageQueue::Clear(MessageHandler* phandler, |
| 359 uint32_t id, |
| 354 MessageList* removed) { | 360 MessageList* removed) { |
| 355 CritScope cs(&crit_); | 361 CritScope cs(&crit_); |
| 356 | 362 |
| 357 // Remove messages with phandler | 363 // Remove messages with phandler |
| 358 | 364 |
| 359 if (fPeekKeep_ && msgPeek_.Match(phandler, id)) { | 365 if (fPeekKeep_ && msgPeek_.Match(phandler, id)) { |
| 360 if (removed) { | 366 if (removed) { |
| 361 removed->push_back(msgPeek_); | 367 removed->push_back(msgPeek_); |
| 362 } else { | 368 } else { |
| 363 delete msgPeek_.pdata; | 369 delete msgPeek_.pdata; |
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| 397 } | 403 } |
| 398 dmsgq_.container().erase(new_end, dmsgq_.container().end()); | 404 dmsgq_.container().erase(new_end, dmsgq_.container().end()); |
| 399 dmsgq_.reheap(); | 405 dmsgq_.reheap(); |
| 400 } | 406 } |
| 401 | 407 |
| 402 void MessageQueue::Dispatch(Message *pmsg) { | 408 void MessageQueue::Dispatch(Message *pmsg) { |
| 403 pmsg->phandler->OnMessage(pmsg); | 409 pmsg->phandler->OnMessage(pmsg); |
| 404 } | 410 } |
| 405 | 411 |
| 406 } // namespace rtc | 412 } // namespace rtc |
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