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1 /* | 1 /* |
2 * Copyright (C) 2010 Google Inc. All Rights Reserved. | 2 * Copyright (C) 2010 Google Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 * | 24 * |
25 */ | 25 */ |
26 | 26 |
27 #include "core/workers/WorkerEventQueue.h" | 27 #include "core/workers/WorkerEventQueue.h" |
28 | 28 |
29 #include "core/dom/TaskRunnerHelper.h" | |
30 #include "core/events/Event.h" | 29 #include "core/events/Event.h" |
31 #include "core/probe/CoreProbes.h" | 30 #include "core/probe/CoreProbes.h" |
32 #include "core/workers/WorkerGlobalScope.h" | 31 #include "core/workers/WorkerGlobalScope.h" |
33 #include "core/workers/WorkerThread.h" | 32 #include "core/workers/WorkerThread.h" |
34 | 33 |
35 namespace blink { | 34 namespace blink { |
36 | 35 |
37 WorkerEventQueue* WorkerEventQueue::Create( | 36 WorkerEventQueue* WorkerEventQueue::Create( |
38 WorkerGlobalScope* worker_global_scope) { | 37 WorkerGlobalScope* worker_global_scope) { |
39 return new WorkerEventQueue(worker_global_scope); | 38 return new WorkerEventQueue(worker_global_scope); |
(...skipping 11 matching lines...) Expand all Loading... |
51 visitor->Trace(pending_events_); | 50 visitor->Trace(pending_events_); |
52 EventQueue::Trace(visitor); | 51 EventQueue::Trace(visitor); |
53 } | 52 } |
54 | 53 |
55 bool WorkerEventQueue::EnqueueEvent(Event* event) { | 54 bool WorkerEventQueue::EnqueueEvent(Event* event) { |
56 if (is_closed_) | 55 if (is_closed_) |
57 return false; | 56 return false; |
58 probe::AsyncTaskScheduled(event->target()->GetExecutionContext(), | 57 probe::AsyncTaskScheduled(event->target()->GetExecutionContext(), |
59 event->type(), event); | 58 event->type(), event); |
60 pending_events_.insert(event); | 59 pending_events_.insert(event); |
61 // This queue is unthrottled because throttling event tasks may break existing | 60 worker_global_scope_->GetThread()->PostTask( |
62 // web pages. For example, throttling IndexedDB events may break scenarios | 61 BLINK_FROM_HERE, |
63 // where several tabs, some of which are backgrounded, access the same | 62 WTF::Bind(&WorkerEventQueue::DispatchEvent, WrapPersistent(this), |
64 // database concurrently. See also comments in the ctor of | 63 WrapWeakPersistent(event))); |
65 // DOMWindowEventQueueTimer. | |
66 // TODO(nhiroki): Callers of enqueueEvent() should specify the task type. | |
67 TaskRunnerHelper::Get(TaskType::kUnthrottled, worker_global_scope_.Get()) | |
68 ->PostTask(BLINK_FROM_HERE, | |
69 WTF::Bind(&WorkerEventQueue::DispatchEvent, | |
70 WrapPersistent(this), WrapWeakPersistent(event))); | |
71 return true; | 64 return true; |
72 } | 65 } |
73 | 66 |
74 bool WorkerEventQueue::CancelEvent(Event* event) { | 67 bool WorkerEventQueue::CancelEvent(Event* event) { |
75 if (!RemoveEvent(event)) | 68 if (!RemoveEvent(event)) |
76 return false; | 69 return false; |
77 probe::AsyncTaskCanceled(event->target()->GetExecutionContext(), event); | 70 probe::AsyncTaskCanceled(event->target()->GetExecutionContext(), event); |
78 return true; | 71 return true; |
79 } | 72 } |
80 | 73 |
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95 | 88 |
96 void WorkerEventQueue::DispatchEvent(Event* event) { | 89 void WorkerEventQueue::DispatchEvent(Event* event) { |
97 if (!event || !RemoveEvent(event)) | 90 if (!event || !RemoveEvent(event)) |
98 return; | 91 return; |
99 | 92 |
100 probe::AsyncTask async_task(worker_global_scope_, event); | 93 probe::AsyncTask async_task(worker_global_scope_, event); |
101 event->target()->DispatchEvent(event); | 94 event->target()->DispatchEvent(event); |
102 } | 95 } |
103 | 96 |
104 } // namespace blink | 97 } // namespace blink |
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