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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 RUNTIME_VM_SCAVENGER_H_ | 5 #ifndef RUNTIME_VM_SCAVENGER_H_ |
6 #define RUNTIME_VM_SCAVENGER_H_ | 6 #define RUNTIME_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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49 | 49 |
50 // Set write protection mode for this space. The space must not be protected | 50 // Set write protection mode for this space. The space must not be protected |
51 // when Delete is called. | 51 // when Delete is called. |
52 // TODO(koda): Remember protection mode in VirtualMemory and assert this. | 52 // TODO(koda): Remember protection mode in VirtualMemory and assert this. |
53 void WriteProtect(bool read_only); | 53 void WriteProtect(bool read_only); |
54 | 54 |
55 private: | 55 private: |
56 explicit SemiSpace(VirtualMemory* reserved); | 56 explicit SemiSpace(VirtualMemory* reserved); |
57 ~SemiSpace(); | 57 ~SemiSpace(); |
58 | 58 |
59 VirtualMemory* reserved_; // NULL for an emtpy space. | 59 VirtualMemory* reserved_; // NULL for an empty space. |
60 MemoryRegion region_; | 60 MemoryRegion region_; |
61 | 61 |
62 static SemiSpace* cache_; | 62 static SemiSpace* cache_; |
63 static Mutex* mutex_; | 63 static Mutex* mutex_; |
64 }; | 64 }; |
65 | 65 |
66 | 66 |
67 // Statistics for a particular scavenge. | 67 // Statistics for a particular scavenge. |
68 class ScavengeStats { | 68 class ScavengeStats { |
69 public: | 69 public: |
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299 | 299 |
300 friend class ScavengerVisitor; | 300 friend class ScavengerVisitor; |
301 friend class ScavengerWeakVisitor; | 301 friend class ScavengerWeakVisitor; |
302 | 302 |
303 DISALLOW_COPY_AND_ASSIGN(Scavenger); | 303 DISALLOW_COPY_AND_ASSIGN(Scavenger); |
304 }; | 304 }; |
305 | 305 |
306 } // namespace dart | 306 } // namespace dart |
307 | 307 |
308 #endif // RUNTIME_VM_SCAVENGER_H_ | 308 #endif // RUNTIME_VM_SCAVENGER_H_ |
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