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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 wrapUnique(new MarkingVisitor<Visitor::GlobalMarking>(state)); | 20 return makeUnique<MarkingVisitor<Visitor::GlobalMarking>>(state); |
| 21 case BlinkGC::TakeSnapshot: | 21 case BlinkGC::TakeSnapshot: |
| 22 return wrapUnique(new MarkingVisitor<Visitor::SnapshotMarking>(state)); | 22 return makeUnique<MarkingVisitor<Visitor::SnapshotMarking>>(state); |
| 23 case BlinkGC::ThreadTerminationGC: | 23 case BlinkGC::ThreadTerminationGC: |
| 24 return wrapUnique(new MarkingVisitor<Visitor::ThreadLocalMarking>(state)); | 24 return makeUnique<MarkingVisitor<Visitor::ThreadLocalMarking>>(state); |
| 25 case BlinkGC::ThreadLocalWeakProcessing: | 25 case BlinkGC::ThreadLocalWeakProcessing: |
| 26 return wrapUnique(new MarkingVisitor<Visitor::WeakProcessing>(state)); | 26 return makeUnique<MarkingVisitor<Visitor::WeakProcessing>>(state); |
| 27 default: | 27 default: |
| 28 ASSERT_NOT_REACHED(); | 28 ASSERT_NOT_REACHED(); |
| 29 } | 29 } |
| 30 return nullptr; | 30 return nullptr; |
| 31 } | 31 } |
| 32 | 32 |
| 33 Visitor::Visitor(ThreadState* state, MarkingMode markingMode) | 33 Visitor::Visitor(ThreadState* state, MarkingMode markingMode) |
| 34 : VisitorHelper(state), m_markingMode(markingMode) { | 34 : VisitorHelper(state), m_markingMode(markingMode) { |
| 35 // See ThreadState::runScheduledGC() why we need to already be in a | 35 // See ThreadState::runScheduledGC() why we need to already be in a |
| 36 // GCForbiddenScope before any safe point is entered. | 36 // GCForbiddenScope before any safe point is entered. |
| 37 state->enterGCForbiddenScope(); | 37 state->enterGCForbiddenScope(); |
| 38 | 38 |
| 39 ASSERT(state->checkThread()); | 39 ASSERT(state->checkThread()); |
| 40 } | 40 } |
| 41 | 41 |
| 42 Visitor::~Visitor() { | 42 Visitor::~Visitor() { |
| 43 state()->leaveGCForbiddenScope(); | 43 state()->leaveGCForbiddenScope(); |
| 44 } | 44 } |
| 45 | 45 |
| 46 } // namespace blink | 46 } // namespace blink |
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