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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 #include "vm/raw_object.h" | 5 #include "vm/raw_object.h" |
6 | 6 |
7 #include "vm/become.h" | 7 #include "vm/become.h" |
8 #include "vm/class_table.h" | 8 #include "vm/class_table.h" |
9 #include "vm/dart.h" | 9 #include "vm/dart.h" |
10 #include "vm/freelist.h" | 10 #include "vm/freelist.h" |
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192 RawClass* raw_class = isolate->GetClassForHeapWalkAt(class_id); | 192 RawClass* raw_class = isolate->GetClassForHeapWalkAt(class_id); |
193 instance_size = raw_class->ptr()->instance_size_in_words_ | 193 instance_size = raw_class->ptr()->instance_size_in_words_ |
194 << kWordSizeLog2; | 194 << kWordSizeLog2; |
195 } | 195 } |
196 } | 196 } |
197 ASSERT(instance_size != 0); | 197 ASSERT(instance_size != 0); |
198 #if defined(DEBUG) | 198 #if defined(DEBUG) |
199 uword tags = ptr()->tags_; | 199 uword tags = ptr()->tags_; |
200 intptr_t tags_size = SizeTag::decode(tags); | 200 intptr_t tags_size = SizeTag::decode(tags); |
201 if ((class_id == kArrayCid) && (instance_size > tags_size && tags_size > 0)) { | 201 if ((class_id == kArrayCid) && (instance_size > tags_size && tags_size > 0)) { |
202 // TODO(22501): Array::MakeArray could be in the process of shrinking | 202 // TODO(22501): Array::MakeFixedLength could be in the process of shrinking |
203 // the array (see comment therein), having already updated the tags but not | 203 // the array (see comment therein), having already updated the tags but not |
204 // yet set the new length. Wait a millisecond and try again. | 204 // yet set the new length. Wait a millisecond and try again. |
205 int retries_remaining = 1000; // ... but not forever. | 205 int retries_remaining = 1000; // ... but not forever. |
206 do { | 206 do { |
207 OS::Sleep(1); | 207 OS::Sleep(1); |
208 const RawArray* raw_array = reinterpret_cast<const RawArray*>(this); | 208 const RawArray* raw_array = reinterpret_cast<const RawArray*>(this); |
209 intptr_t array_length = Smi::Value(raw_array->ptr()->length_); | 209 intptr_t array_length = Smi::Value(raw_array->ptr()->length_); |
210 instance_size = Array::InstanceSize(array_length); | 210 instance_size = Array::InstanceSize(array_length); |
211 } while ((instance_size > tags_size) && (--retries_remaining > 0)); | 211 } while ((instance_size > tags_size) && (--retries_remaining > 0)); |
212 } | 212 } |
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1003 intptr_t RawUserTag::VisitUserTagPointers(RawUserTag* raw_obj, | 1003 intptr_t RawUserTag::VisitUserTagPointers(RawUserTag* raw_obj, |
1004 ObjectPointerVisitor* visitor) { | 1004 ObjectPointerVisitor* visitor) { |
1005 // Make sure that we got here with the tagged pointer as this. | 1005 // Make sure that we got here with the tagged pointer as this. |
1006 ASSERT(raw_obj->IsHeapObject()); | 1006 ASSERT(raw_obj->IsHeapObject()); |
1007 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 1007 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
1008 return UserTag::InstanceSize(); | 1008 return UserTag::InstanceSize(); |
1009 } | 1009 } |
1010 | 1010 |
1011 | 1011 |
1012 } // namespace dart | 1012 } // namespace dart |
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