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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/object_graph.h" | 5 #include "vm/object_graph.h" |
6 | 6 |
7 #include "vm/dart.h" | 7 #include "vm/dart.h" |
8 #include "vm/growable_array.h" | 8 #include "vm/growable_array.h" |
9 #include "vm/isolate.h" | 9 #include "vm/isolate.h" |
10 #include "vm/object.h" | 10 #include "vm/object.h" |
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141 explicit Unmarker(Isolate* isolate) : ObjectVisitor(isolate) { } | 141 explicit Unmarker(Isolate* isolate) : ObjectVisitor(isolate) { } |
142 | 142 |
143 void VisitObject(RawObject* obj) { | 143 void VisitObject(RawObject* obj) { |
144 if (obj->IsMarked()) { | 144 if (obj->IsMarked()) { |
145 obj->ClearMarkBit(); | 145 obj->ClearMarkBit(); |
146 } | 146 } |
147 } | 147 } |
148 | 148 |
149 static void UnmarkAll(Isolate* isolate) { | 149 static void UnmarkAll(Isolate* isolate) { |
150 Unmarker unmarker(isolate); | 150 Unmarker unmarker(isolate); |
151 isolate->heap()->IterateObjects(&unmarker); | 151 isolate->heap()->VisitObjects(&unmarker); |
152 } | 152 } |
153 | 153 |
154 private: | 154 private: |
155 DISALLOW_COPY_AND_ASSIGN(Unmarker); | 155 DISALLOW_COPY_AND_ASSIGN(Unmarker); |
156 }; | 156 }; |
157 | 157 |
158 | 158 |
159 ObjectGraph::ObjectGraph(Isolate* isolate) | 159 ObjectGraph::ObjectGraph(Isolate* isolate) |
160 : StackResource(isolate) { | 160 : StackResource(isolate) { |
161 // The VM isolate has all its objects pre-marked, so iterating over it | 161 // The VM isolate has all its objects pre-marked, so iterating over it |
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360 const Array& references_; | 360 const Array& references_; |
361 Object* scratch_; | 361 Object* scratch_; |
362 intptr_t length_; | 362 intptr_t length_; |
363 }; | 363 }; |
364 | 364 |
365 | 365 |
366 intptr_t ObjectGraph::InboundReferences(Object* obj, const Array& references) { | 366 intptr_t ObjectGraph::InboundReferences(Object* obj, const Array& references) { |
367 Object& scratch = Object::Handle(); | 367 Object& scratch = Object::Handle(); |
368 NoSafepointScope no_safepoint_scope_; | 368 NoSafepointScope no_safepoint_scope_; |
369 InboundReferencesVisitor visitor(isolate(), obj->raw(), references, &scratch); | 369 InboundReferencesVisitor visitor(isolate(), obj->raw(), references, &scratch); |
370 isolate()->heap()->IterateObjects(&visitor); | 370 isolate()->heap()->VisitObjects(&visitor); |
371 return visitor.length(); | 371 return visitor.length(); |
372 } | 372 } |
373 | 373 |
374 | 374 |
375 static void WritePtr(RawObject* raw, WriteStream* stream) { | 375 static void WritePtr(RawObject* raw, WriteStream* stream) { |
376 ASSERT(raw->IsHeapObject()); | 376 ASSERT(raw->IsHeapObject()); |
377 ASSERT(raw->IsOldObject()); | 377 ASSERT(raw->IsOldObject()); |
378 uword addr = RawObject::ToAddr(raw); | 378 uword addr = RawObject::ToAddr(raw); |
379 ASSERT(Utils::IsAligned(addr, kObjectAlignment)); | 379 ASSERT(Utils::IsAligned(addr, kObjectAlignment)); |
380 // Using units of kObjectAlignment makes the ids fit into Smis when parsed | 380 // Using units of kObjectAlignment makes the ids fit into Smis when parsed |
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455 stream->WriteUnsigned(0); | 455 stream->WriteUnsigned(0); |
456 { | 456 { |
457 WritePointerVisitor ptr_writer(isolate(), stream); | 457 WritePointerVisitor ptr_writer(isolate(), stream); |
458 isolate()->VisitObjectPointers(&ptr_writer, false, false); | 458 isolate()->VisitObjectPointers(&ptr_writer, false, false); |
459 } | 459 } |
460 stream->WriteUnsigned(0); | 460 stream->WriteUnsigned(0); |
461 IterateObjects(&visitor); | 461 IterateObjects(&visitor); |
462 } | 462 } |
463 | 463 |
464 } // namespace dart | 464 } // namespace dart |
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