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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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 #ifndef VM_SCAVENGER_H_ | 5 #ifndef VM_SCAVENGER_H_ |
6 #define VM_SCAVENGER_H_ | 6 #define VM_SCAVENGER_H_ |
7 | 7 |
8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
9 #include "platform/utils.h" | 9 #include "platform/utils.h" |
10 #include "vm/dart.h" | 10 #include "vm/dart.h" |
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240 bool visit_prologue_weak_persistent_handles); | 240 bool visit_prologue_weak_persistent_handles); |
241 void IterateWeakProperties(Isolate* isolate, ScavengerVisitor* visitor); | 241 void IterateWeakProperties(Isolate* isolate, ScavengerVisitor* visitor); |
242 void IterateWeakReferences(Isolate* isolate, ScavengerVisitor* visitor); | 242 void IterateWeakReferences(Isolate* isolate, ScavengerVisitor* visitor); |
243 void IterateWeakRoots(Isolate* isolate, | 243 void IterateWeakRoots(Isolate* isolate, |
244 HandleVisitor* visitor, | 244 HandleVisitor* visitor, |
245 bool visit_prologue_weak_persistent_handles); | 245 bool visit_prologue_weak_persistent_handles); |
246 void ProcessToSpace(ScavengerVisitor* visitor); | 246 void ProcessToSpace(ScavengerVisitor* visitor); |
247 uword ProcessWeakProperty(RawWeakProperty* raw_weak, | 247 uword ProcessWeakProperty(RawWeakProperty* raw_weak, |
248 ScavengerVisitor* visitor); | 248 ScavengerVisitor* visitor); |
249 void Epilogue(Isolate* isolate, | 249 void Epilogue(Isolate* isolate, |
250 ScavengerVisitor* visitor, | |
251 bool invoke_api_callbacks); | 250 bool invoke_api_callbacks); |
252 | 251 |
253 bool IsUnreachable(RawObject** p); | 252 bool IsUnreachable(RawObject** p); |
254 | 253 |
255 // During a scavenge we need to remember the promoted objects. | 254 // During a scavenge we need to remember the promoted objects. |
256 // This is implemented as a stack of objects at the end of the to space. As | 255 // This is implemented as a stack of objects at the end of the to space. As |
257 // object sizes are always greater than sizeof(uword) and promoted objects do | 256 // object sizes are always greater than sizeof(uword) and promoted objects do |
258 // not consume space in the to space they leave enough room for this stack. | 257 // not consume space in the to space they leave enough room for this stack. |
259 void PushToPromotedStack(uword addr) { | 258 void PushToPromotedStack(uword addr) { |
260 ASSERT(scavenging_); | 259 ASSERT(scavenging_); |
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313 | 312 |
314 friend class ScavengerVisitor; | 313 friend class ScavengerVisitor; |
315 friend class ScavengerWeakVisitor; | 314 friend class ScavengerWeakVisitor; |
316 | 315 |
317 DISALLOW_COPY_AND_ASSIGN(Scavenger); | 316 DISALLOW_COPY_AND_ASSIGN(Scavenger); |
318 }; | 317 }; |
319 | 318 |
320 } // namespace dart | 319 } // namespace dart |
321 | 320 |
322 #endif // VM_SCAVENGER_H_ | 321 #endif // VM_SCAVENGER_H_ |
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