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1 /* | 1 /* |
2 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved. |
3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) | 3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) |
4 * | 4 * |
5 * This library is free software; you can redistribute it and/or | 5 * This library is free software; you can redistribute it and/or |
6 * modify it under the terms of the GNU Library General Public | 6 * modify it under the terms of the GNU Library General Public |
7 * License as published by the Free Software Foundation; either | 7 * License as published by the Free Software Foundation; either |
8 * version 2 of the License, or (at your option) any later version. | 8 * version 2 of the License, or (at your option) any later version. |
9 * | 9 * |
10 * This library is distributed in the hope that it will be useful, | 10 * This library is distributed in the hope that it will be useful, |
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28 #include "public/platform/WebScheduler.h" | 28 #include "public/platform/WebScheduler.h" |
29 #include "wtf/StdLibExtras.h" | 29 #include "wtf/StdLibExtras.h" |
30 #include "wtf/Vector.h" | 30 #include "wtf/Vector.h" |
31 | 31 |
32 namespace blink { | 32 namespace blink { |
33 | 33 |
34 namespace { | 34 namespace { |
35 | 35 |
36 unsigned s_suspensionCount = 0; | 36 unsigned s_suspensionCount = 0; |
37 | 37 |
38 void setSuspended(bool isSuspended) { | |
39 // Make a copy of the collection. Undeferring loads can cause script to run, | |
40 // which would mutate ordinaryPages() in the middle of iteration. | |
41 HeapVector<Member<Page>> pages; | |
42 copyToVector(Page::ordinaryPages(), pages); | |
43 for (const auto& page : pages) | |
44 page->setSuspended(isSuspended); | |
45 } | |
46 | |
47 } // namespace | 38 } // namespace |
48 | 39 |
49 ScopedPageSuspender::ScopedPageSuspender() { | 40 ScopedPageSuspender::ScopedPageSuspender() { |
50 if (++s_suspensionCount > 1) | 41 if (++s_suspensionCount > 1) |
51 return; | 42 return; |
52 | 43 |
53 setSuspended(true); | 44 setSuspended(true); |
54 Platform::current()->currentThread()->scheduler()->suspendTimerQueue(); | 45 Platform::current()->currentThread()->scheduler()->suspendTimerQueue(); |
55 } | 46 } |
56 | 47 |
57 ScopedPageSuspender::~ScopedPageSuspender() { | 48 ScopedPageSuspender::~ScopedPageSuspender() { |
58 if (--s_suspensionCount > 0) | 49 if (--s_suspensionCount > 0) |
59 return; | 50 return; |
60 | 51 |
61 setSuspended(false); | 52 setSuspended(false); |
62 Platform::current()->currentThread()->scheduler()->resumeTimerQueue(); | 53 Platform::current()->currentThread()->scheduler()->resumeTimerQueue(); |
63 } | 54 } |
64 | 55 |
| 56 void ScopedPageSuspender::setSuspended(bool isSuspended) { |
| 57 // Make a copy of the collection. Undeferring loads can cause script to run, |
| 58 // which would mutate ordinaryPages() in the middle of iteration. |
| 59 HeapVector<Member<Page>> pages; |
| 60 copyToVector(Page::ordinaryPages(), pages); |
| 61 |
| 62 for (const auto& page : pages) |
| 63 page->setSuspended(isSuspended); |
| 64 } |
| 65 |
65 bool ScopedPageSuspender::isActive() { | 66 bool ScopedPageSuspender::isActive() { |
66 return s_suspensionCount > 0; | 67 return s_suspensionCount > 0; |
67 } | 68 } |
68 | 69 |
69 } // namespace blink | 70 } // namespace blink |
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