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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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441 */ | 441 */ |
442 static void StartHeapObjectsTracking(); | 442 static void StartHeapObjectsTracking(); |
443 | 443 |
444 /** | 444 /** |
445 * Adds a new time interval entry to the aggregated statistics array. The | 445 * Adds a new time interval entry to the aggregated statistics array. The |
446 * time interval entry contains information on the current heap objects | 446 * time interval entry contains information on the current heap objects |
447 * population size. The method also updates aggregated statistics and | 447 * population size. The method also updates aggregated statistics and |
448 * reports updates for all previous time intervals via the OutputStream | 448 * reports updates for all previous time intervals via the OutputStream |
449 * object. Updates on each time interval are provided as a stream of the | 449 * object. Updates on each time interval are provided as a stream of the |
450 * HeapStatsUpdate structure instances. | 450 * HeapStatsUpdate structure instances. |
| 451 * The return value of the function is the last seen heap object Id. |
451 * | 452 * |
452 * StartHeapObjectsTracking must be called before the first call to this | 453 * StartHeapObjectsTracking must be called before the first call to this |
453 * method. | 454 * method. |
454 */ | 455 */ |
455 static void PushHeapObjectsStats(OutputStream* stream); | 456 static SnapshotObjectId PushHeapObjectsStats(OutputStream* stream); |
456 | 457 |
457 /** | 458 /** |
458 * Stops tracking of heap objects population statistics, cleans up all | 459 * Stops tracking of heap objects population statistics, cleans up all |
459 * collected data. StartHeapObjectsTracking must be called again prior to | 460 * collected data. StartHeapObjectsTracking must be called again prior to |
460 * calling PushHeapObjectsStats next time. | 461 * calling PushHeapObjectsStats next time. |
461 */ | 462 */ |
462 static void StopHeapObjectsTracking(); | 463 static void StopHeapObjectsTracking(); |
463 | 464 |
464 /** | 465 /** |
465 * Deletes all snapshots taken. All previously returned pointers to | 466 * Deletes all snapshots taken. All previously returned pointers to |
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571 }; | 572 }; |
572 | 573 |
573 | 574 |
574 } // namespace v8 | 575 } // namespace v8 |
575 | 576 |
576 | 577 |
577 #undef V8EXPORT | 578 #undef V8EXPORT |
578 | 579 |
579 | 580 |
580 #endif // V8_V8_PROFILER_H_ | 581 #endif // V8_V8_PROFILER_H_ |
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