Mercurial > hg > truffle
comparison src/share/vm/gc_interface/collectedHeap.cpp @ 4708:3c648b9ad052
7121373: Clean up CollectedHeap::is_in
Summary: Fixed G1CollectedHeap::is_in, added tests, cleaned up comments and made Space::is_in pure virtual.
Reviewed-by: brutisso, tonyp, jcoomes
| author | stefank |
|---|---|
| date | Wed, 14 Dec 2011 12:15:26 +0100 |
| parents | e5928e7dab26 |
| children | b6a04c79ccbc |
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| 4132:6d7d0790074d | 4708:3c648b9ad052 |
|---|---|
| 469 // notify jvmti and dtrace | 469 // notify jvmti and dtrace |
| 470 post_allocation_notify(klass, (oop)obj); | 470 post_allocation_notify(klass, (oop)obj); |
| 471 | 471 |
| 472 return mirror; | 472 return mirror; |
| 473 } | 473 } |
| 474 | |
| 475 /////////////// Unit tests /////////////// | |
| 476 | |
| 477 #ifndef PRODUCT | |
| 478 void CollectedHeap::test_is_in() { | |
| 479 CollectedHeap* heap = Universe::heap(); | |
| 480 | |
| 481 // Test that NULL is not in the heap. | |
| 482 assert(!heap->is_in(NULL), "NULL is unexpectedly in the heap"); | |
| 483 | |
| 484 // Test that a pointer to before the heap start is reported as outside the heap. | |
| 485 assert(heap->_reserved.start() >= (void*)MinObjAlignment, "sanity"); | |
| 486 void* before_heap = (void*)((intptr_t)heap->_reserved.start() - MinObjAlignment); | |
| 487 assert(!heap->is_in(before_heap), | |
| 488 err_msg("before_heap: " PTR_FORMAT " is unexpectedly in the heap", before_heap)); | |
| 489 | |
| 490 // Test that a pointer to after the heap end is reported as outside the heap. | |
| 491 assert(heap->_reserved.end() <= (void*)(uintptr_t(-1) - (uint)MinObjAlignment), "sanity"); | |
| 492 void* after_heap = (void*)((intptr_t)heap->_reserved.end() + MinObjAlignment); | |
| 493 assert(!heap->is_in(after_heap), | |
| 494 err_msg("after_heap: " PTR_FORMAT " is unexpectedly in the heap", after_heap)); | |
| 495 } | |
| 496 #endif |