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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "bindings/core/v8/ScriptStreamerThread.h" | 5 #include "bindings/core/v8/ScriptStreamerThread.h" |
6 | 6 |
7 #include <memory> | 7 #include <memory> |
8 #include "bindings/core/v8/ScriptStreamer.h" | 8 #include "bindings/core/v8/ScriptStreamer.h" |
9 #include "core/inspector/InspectorTraceEvents.h" | 9 #include "core/inspector/InspectorTraceEvents.h" |
10 #include "platform/WebTaskRunner.h" | 10 #include "platform/WebTaskRunner.h" |
11 #include "platform/instrumentation/tracing/TraceEvent.h" | 11 #include "platform/instrumentation/tracing/TraceEvent.h" |
12 #include "platform/wtf/PtrUtil.h" | 12 #include "platform/wtf/PtrUtil.h" |
13 #include "public/platform/Platform.h" | 13 #include "public/platform/Platform.h" |
14 #include "public/platform/WebTraceLocation.h" | 14 #include "public/platform/WebTraceLocation.h" |
15 | 15 |
16 namespace blink { | 16 namespace blink { |
17 | 17 |
18 static ScriptStreamerThread* g_shared_thread = 0; | 18 static ScriptStreamerThread* g_shared_thread = 0; |
19 // Guards s_sharedThread. s_sharedThread is initialized and deleted in the main | 19 // Guards s_sharedThread. s_sharedThread is initialized and deleted in the main |
20 // thread, but also used by the streamer thread. Races can occur during | 20 // thread, but also used by the streamer thread. Races can occur during |
21 // shutdown. | 21 // shutdown. |
22 static Mutex* g_mutex = 0; | 22 static Mutex* g_mutex = 0; |
23 | 23 |
24 void ScriptStreamerThread::Init() { | 24 void ScriptStreamerThread::Init() { |
25 ASSERT(!g_shared_thread); | 25 DCHECK(!g_shared_thread); |
26 ASSERT(IsMainThread()); | 26 DCHECK(IsMainThread()); |
27 // This is called in the main thread before any tasks are created, so no | 27 // This is called in the main thread before any tasks are created, so no |
28 // locking is needed. | 28 // locking is needed. |
29 g_mutex = new Mutex(); | 29 g_mutex = new Mutex(); |
30 g_shared_thread = new ScriptStreamerThread(); | 30 g_shared_thread = new ScriptStreamerThread(); |
31 } | 31 } |
32 | 32 |
33 ScriptStreamerThread* ScriptStreamerThread::Shared() { | 33 ScriptStreamerThread* ScriptStreamerThread::Shared() { |
34 return g_shared_thread; | 34 return g_shared_thread; |
35 } | 35 } |
36 | 36 |
37 void ScriptStreamerThread::PostTask(std::unique_ptr<CrossThreadClosure> task) { | 37 void ScriptStreamerThread::PostTask(std::unique_ptr<CrossThreadClosure> task) { |
38 ASSERT(IsMainThread()); | 38 DCHECK(IsMainThread()); |
39 MutexLocker locker(mutex_); | 39 MutexLocker locker(mutex_); |
40 ASSERT(!running_task_); | 40 DCHECK(!running_task_); |
41 running_task_ = true; | 41 running_task_ = true; |
42 PlatformThread().GetWebTaskRunner()->PostTask(BLINK_FROM_HERE, | 42 PlatformThread().GetWebTaskRunner()->PostTask(BLINK_FROM_HERE, |
43 std::move(task)); | 43 std::move(task)); |
44 } | 44 } |
45 | 45 |
46 void ScriptStreamerThread::TaskDone() { | 46 void ScriptStreamerThread::TaskDone() { |
47 MutexLocker locker(mutex_); | 47 MutexLocker locker(mutex_); |
48 ASSERT(running_task_); | 48 DCHECK(running_task_); |
49 running_task_ = false; | 49 running_task_ = false; |
50 } | 50 } |
51 | 51 |
52 WebThread& ScriptStreamerThread::PlatformThread() { | 52 WebThread& ScriptStreamerThread::PlatformThread() { |
53 if (!IsRunning()) { | 53 if (!IsRunning()) { |
54 thread_ = WTF::WrapUnique( | 54 thread_ = WTF::WrapUnique( |
55 Platform::Current()->CreateThread("ScriptStreamerThread")); | 55 Platform::Current()->CreateThread("ScriptStreamerThread")); |
56 } | 56 } |
57 return *thread_; | 57 return *thread_; |
58 } | 58 } |
(...skipping 10 matching lines...) Expand all Loading... |
69 task->Run(); | 69 task->Run(); |
70 streamer->StreamingCompleteOnBackgroundThread(); | 70 streamer->StreamingCompleteOnBackgroundThread(); |
71 MutexLocker locker(*g_mutex); | 71 MutexLocker locker(*g_mutex); |
72 ScriptStreamerThread* thread = Shared(); | 72 ScriptStreamerThread* thread = Shared(); |
73 if (thread) | 73 if (thread) |
74 thread->TaskDone(); | 74 thread->TaskDone(); |
75 // If thread is 0, we're shutting down. | 75 // If thread is 0, we're shutting down. |
76 } | 76 } |
77 | 77 |
78 } // namespace blink | 78 } // namespace blink |
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