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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 "platform/heap/Visitor.h" | 5 #include "platform/heap/Visitor.h" |
6 | 6 |
7 #include "platform/heap/BlinkGC.h" | 7 #include "platform/heap/BlinkGC.h" |
8 #include "platform/heap/MarkingVisitor.h" | 8 #include "platform/heap/MarkingVisitor.h" |
9 #include "platform/heap/ThreadState.h" | 9 #include "platform/heap/ThreadState.h" |
10 #include "wtf/PtrUtil.h" | 10 #include "wtf/PtrUtil.h" |
11 #include <memory> | 11 #include <memory> |
12 | 12 |
13 namespace blink { | 13 namespace blink { |
14 | 14 |
15 std::unique_ptr<Visitor> Visitor::create(ThreadState* state, | 15 std::unique_ptr<Visitor> Visitor::create(ThreadState* state, |
16 BlinkGC::GCType gcType) { | 16 BlinkGC::GCType gcType) { |
17 switch (gcType) { | 17 switch (gcType) { |
18 case BlinkGC::GCWithSweep: | 18 case BlinkGC::GCWithSweep: |
19 case BlinkGC::GCWithoutSweep: | 19 case BlinkGC::GCWithoutSweep: |
20 return makeUnique<MarkingVisitor<Visitor::GlobalMarking>>(state); | 20 return makeUnique<MarkingVisitor<Visitor::GlobalMarking>>(state); |
| 21 case BlinkGC::GCWithSweepCompaction: |
| 22 return makeUnique<MarkingVisitor<Visitor::GlobalMarkCompacting>>(state); |
21 case BlinkGC::TakeSnapshot: | 23 case BlinkGC::TakeSnapshot: |
22 return makeUnique<MarkingVisitor<Visitor::SnapshotMarking>>(state); | 24 return makeUnique<MarkingVisitor<Visitor::SnapshotMarking>>(state); |
23 case BlinkGC::ThreadTerminationGC: | 25 case BlinkGC::ThreadTerminationGC: |
24 return makeUnique<MarkingVisitor<Visitor::ThreadLocalMarking>>(state); | 26 return makeUnique<MarkingVisitor<Visitor::ThreadLocalMarking>>(state); |
25 case BlinkGC::ThreadLocalWeakProcessing: | 27 case BlinkGC::ThreadLocalWeakProcessing: |
26 return makeUnique<MarkingVisitor<Visitor::WeakProcessing>>(state); | 28 return makeUnique<MarkingVisitor<Visitor::WeakProcessing>>(state); |
27 default: | 29 default: |
28 ASSERT_NOT_REACHED(); | 30 ASSERT_NOT_REACHED(); |
29 } | 31 } |
30 return nullptr; | 32 return nullptr; |
31 } | 33 } |
32 | 34 |
33 Visitor::Visitor(ThreadState* state, MarkingMode markingMode) | 35 Visitor::Visitor(ThreadState* state, MarkingMode markingMode) |
34 : VisitorHelper(state), m_markingMode(markingMode) { | 36 : VisitorHelper(state), m_markingMode(markingMode) { |
35 // See ThreadState::runScheduledGC() why we need to already be in a | 37 // See ThreadState::runScheduledGC() why we need to already be in a |
36 // GCForbiddenScope before any safe point is entered. | 38 // GCForbiddenScope before any safe point is entered. |
37 state->enterGCForbiddenScope(); | 39 DCHECK(state->isGCForbidden()); |
38 | 40 #if ENABLE(ASSERT) |
39 ASSERT(state->checkThread()); | 41 DCHECK(state->checkThread()); |
| 42 #endif |
40 } | 43 } |
41 | 44 |
42 Visitor::~Visitor() { | 45 Visitor::~Visitor() {} |
43 state()->leaveGCForbiddenScope(); | |
44 } | |
45 | 46 |
46 } // namespace blink | 47 } // namespace blink |
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