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Side by Side Diff: third_party/webrtc_overrides/webrtc/base/task_queue.h

Issue 2293913003: Override webrtc task_queue.cc and task_queue.h. (Closed)
Patch Set: Override webrtc task_queue.cc and task_queue.h. This is step 3 of the plan below. Created 4 years, 3 months ago
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1 /* 1 /*
2 * Copyright 2016 The WebRTC Project Authors. All rights reserved. 2 * Copyright 2016 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 #ifndef WEBRTC_BASE_TASK_QUEUE_H_ 11 #ifndef WEBRTC_BASE_TASK_QUEUE_H_
12 #define WEBRTC_BASE_TASK_QUEUE_H_ 12 #define WEBRTC_BASE_TASK_QUEUE_H_
13 13
14 #include <list>
15 #include <memory> 14 #include <memory>
16 #include <unordered_map> 15 #include <stdint.h>
17 16
18 #if defined(WEBRTC_MAC) && !defined(WEBRTC_BUILD_LIBEVENT) 17 #include "base/macros.h"
19 #include <dispatch/dispatch.h> 18 #include "third_party/webrtc/base/thread_annotations.h"
20 #endif
21
22 #include "third_party/webrtc/base/constructormagic.h"
23 #include "third_party/webrtc/base/criticalsection.h"
24
25 #if defined(WEBRTC_WIN) || defined(WEBRTC_BUILD_LIBEVENT)
26 #include "third_party/webrtc/base/platform_thread.h"
27 #endif
28
29 #if defined(WEBRTC_BUILD_LIBEVENT)
30 struct event_base;
31 struct event;
32 #endif
33 19
34 namespace rtc { 20 namespace rtc {
35 21
36 // Base interface for asynchronously executed tasks. 22 // Base interface for asynchronously executed tasks.
37 // The interface basically consists of a single function, Run(), that executes 23 // The interface basically consists of a single function, Run(), that executes
38 // on the target queue. For more details see the Run() method and TaskQueue. 24 // on the target queue. For more details see the Run() method and TaskQueue.
39 class QueuedTask { 25 class QueuedTask {
40 public: 26 public:
41 QueuedTask() {} 27 QueuedTask() {}
42 virtual ~QueuedTask() {} 28 virtual ~QueuedTask() {}
43 29
44 // Main routine that will run when the task is executed on the desired queue. 30 // Main routine that will run when the task is executed on the desired queue.
45 // The task should return |true| to indicate that it should be deleted or 31 // The task should return |true| to indicate that it should be deleted or
46 // |false| to indicate that the queue should consider ownership of the task 32 // |false| to indicate that the queue should consider ownership of the task
47 // having been transferred. Returning |false| can be useful if a task has 33 // having been transferred. Returning |false| can be useful if a task has
48 // re-posted itself to a different queue or is otherwise being re-used. 34 // re-posted itself to a different queue or is otherwise being re-used.
49 virtual bool Run() = 0; 35 virtual bool Run() = 0;
50 36
51 private: 37 private:
52 RTC_DISALLOW_COPY_AND_ASSIGN(QueuedTask); 38 DISALLOW_COPY_AND_ASSIGN(QueuedTask);
53 }; 39 };
54 40
55 // Simple implementation of QueuedTask for use with rtc::Bind and lambdas. 41 // Simple implementation of QueuedTask for use with rtc::Bind and lambdas.
56 template <class Closure> 42 template <class Closure>
57 class ClosureTask : public QueuedTask { 43 class ClosureTask : public QueuedTask {
58 public: 44 public:
59 explicit ClosureTask(const Closure& closure) : closure_(closure) {} 45 explicit ClosureTask(const Closure& closure) : closure_(closure) {}
60 46
61 private: 47 private:
62 bool Run() override { 48 bool Run() override {
(...skipping 155 matching lines...) Expand 10 before | Expand all | Expand 10 after
218 } 204 }
219 205
220 template <class Closure1, class Closure2> 206 template <class Closure1, class Closure2>
221 void PostTaskAndReply(const Closure1& task, const Closure2& reply) { 207 void PostTaskAndReply(const Closure1& task, const Closure2& reply) {
222 PostTaskAndReply( 208 PostTaskAndReply(
223 std::unique_ptr<QueuedTask>(new ClosureTask<Closure1>(task)), 209 std::unique_ptr<QueuedTask>(new ClosureTask<Closure1>(task)),
224 std::unique_ptr<QueuedTask>(new ClosureTask<Closure2>(reply))); 210 std::unique_ptr<QueuedTask>(new ClosureTask<Closure2>(reply)));
225 } 211 }
226 212
227 private: 213 private:
228 #if defined(WEBRTC_BUILD_LIBEVENT) 214 class WorkerThread;
229 static bool ThreadMain(void* context);
230 static void OnWakeup(int socket, short flags, void* context); // NOLINT
231 static void RunTask(int fd, short flags, void* context); // NOLINT
232 static void RunTimer(int fd, short flags, void* context); // NOLINT
233 215
234 class PostAndReplyTask; 216 std::unique_ptr<WorkerThread> thread_;
235 class SetTimerTask; 217 DISALLOW_COPY_AND_ASSIGN(TaskQueue);
236
237 void PrepareReplyTask(PostAndReplyTask* reply_task);
238 void ReplyTaskDone(PostAndReplyTask* reply_task);
239
240 struct QueueContext;
241
242 int wakeup_pipe_in_ = -1;
243 int wakeup_pipe_out_ = -1;
244 event_base* event_base_;
245 std::unique_ptr<event> wakeup_event_;
246 PlatformThread thread_;
247 rtc::CriticalSection pending_lock_;
248 std::list<std::unique_ptr<QueuedTask>> pending_ GUARDED_BY(pending_lock_);
249 std::list<PostAndReplyTask*> pending_replies_ GUARDED_BY(pending_lock_);
250 #elif defined(WEBRTC_MAC)
251 struct QueueContext;
252 struct TaskContext;
253 struct PostTaskAndReplyContext;
254 dispatch_queue_t queue_;
255 QueueContext* const context_;
256 #elif defined(WEBRTC_WIN)
257 typedef std::unordered_map<UINT_PTR, std::unique_ptr<QueuedTask>>
258 DelayedTasks;
259 static bool ThreadMain(void* context);
260 static bool ProcessQueuedMessages(DelayedTasks* delayed_tasks);
261
262 class WorkerThread : public PlatformThread {
263 public:
264 WorkerThread(ThreadRunFunction func, void* obj, const char* thread_name)
265 : PlatformThread(func, obj, thread_name) {}
266
267 bool QueueAPC(PAPCFUNC apc_function, ULONG_PTR data) {
268 return PlatformThread::QueueAPC(apc_function, data);
269 }
270 };
271 WorkerThread thread_;
272 #else
273 #error not supported.
274 #endif
275
276 RTC_DISALLOW_COPY_AND_ASSIGN(TaskQueue);
277 }; 218 };
278 219
279 } // namespace rtc 220 } // namespace rtc
280 221
281 #endif // WEBRTC_BASE_TASK_QUEUE_H_ 222 #endif // WEBRTC_BASE_TASK_QUEUE_H_
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