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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_SNAPSHOT_H_ | 5 #ifndef VM_SNAPSHOT_H_ |
6 #define VM_SNAPSHOT_H_ | 6 #define VM_SNAPSHOT_H_ |
7 | 7 |
8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
9 #include "vm/allocation.h" | 9 #include "vm/allocation.h" |
10 #include "vm/bitfield.h" | 10 #include "vm/bitfield.h" |
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315 | 315 |
316 // Write serialization header information for an object. | 316 // Write serialization header information for an object. |
317 void WriteSerializationMarker(SerializedHeaderType type, intptr_t id) { | 317 void WriteSerializationMarker(SerializedHeaderType type, intptr_t id) { |
318 ASSERT(id <= kMaxObjectId); | 318 ASSERT(id <= kMaxObjectId); |
319 intptr_t value = 0; | 319 intptr_t value = 0; |
320 value = SerializedHeaderTag::update(type, value); | 320 value = SerializedHeaderTag::update(type, value); |
321 value = SerializedHeaderData::update(id, value); | 321 value = SerializedHeaderData::update(id, value); |
322 WriteIntptrValue(value); | 322 WriteIntptrValue(value); |
323 } | 323 } |
324 | 324 |
| 325 // Write out a buffer of bytes. |
| 326 void WriteBytes(const uint8_t* addr, intptr_t len) { |
| 327 stream_.WriteBytes(addr, len); |
| 328 } |
| 329 |
325 // Finalize the serialized buffer by filling in the header information | 330 // Finalize the serialized buffer by filling in the header information |
326 // which comprises of a flag(snaphot kind) and the length of | 331 // which comprises of a flag(snaphot kind) and the length of |
327 // serialzed bytes. | 332 // serialzed bytes. |
328 void FinalizeBuffer(Snapshot::Kind kind) { | 333 void FinalizeBuffer(Snapshot::Kind kind) { |
329 int32_t* data = reinterpret_cast<int32_t*>(stream_.buffer()); | 334 int32_t* data = reinterpret_cast<int32_t*>(stream_.buffer()); |
330 data[Snapshot::kLengthIndex] = stream_.bytes_written(); | 335 data[Snapshot::kLengthIndex] = stream_.bytes_written(); |
331 data[Snapshot::kSnapshotFlagIndex] = kind; | 336 data[Snapshot::kSnapshotFlagIndex] = kind; |
332 } | 337 } |
333 | 338 |
334 protected: | 339 protected: |
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470 private: | 475 private: |
471 SnapshotWriter* writer_; | 476 SnapshotWriter* writer_; |
472 bool as_references_; | 477 bool as_references_; |
473 | 478 |
474 DISALLOW_COPY_AND_ASSIGN(SnapshotWriterVisitor); | 479 DISALLOW_COPY_AND_ASSIGN(SnapshotWriterVisitor); |
475 }; | 480 }; |
476 | 481 |
477 } // namespace dart | 482 } // namespace dart |
478 | 483 |
479 #endif // VM_SNAPSHOT_H_ | 484 #endif // VM_SNAPSHOT_H_ |
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