483 void G1BlockOffsetArrayContigSpace::zero_bottom_entry_raw() {
484 assert(!G1CollectedHeap::heap()->is_in_reserved(_array->_offset_array),
485 "just checking");
486 size_t bottom_index = _array->index_for_raw(_bottom);
487 assert(_array->address_for_index_raw(bottom_index) == _bottom,
488 "Precondition of call");
489 _array->set_offset_array_raw(bottom_index, 0);
490 }
491
492 HeapWord* G1BlockOffsetArrayContigSpace::initialize_threshold() {
493 assert(!G1CollectedHeap::heap()->is_in_reserved(_array->_offset_array),
494 "just checking");
495 _next_offset_index = _array->index_for(_bottom);
496 _next_offset_index++;
497 _next_offset_threshold =
498 _array->address_for_index(_next_offset_index);
499 return _next_offset_threshold;
500 }
501
502 void
503 G1BlockOffsetArrayContigSpace::set_for_starts_humongous(HeapWord* new_top) {
504 assert(new_top <= _end, "_end should have already been updated");
505
506 // The first BOT entry should have offset 0.
507 reset_bot();
508 alloc_block(_bottom, new_top);
509 }
510
511 #ifndef PRODUCT
512 void
513 G1BlockOffsetArrayContigSpace::print_on(outputStream* out) {
514 G1BlockOffsetArray::print_on(out);
515 out->print_cr(" next offset threshold: " PTR_FORMAT, p2i(_next_offset_threshold));
516 out->print_cr(" next offset index: " SIZE_FORMAT, _next_offset_index);
517 }
518 #endif // !PRODUCT
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483 void G1BlockOffsetArrayContigSpace::zero_bottom_entry_raw() {
484 assert(!G1CollectedHeap::heap()->is_in_reserved(_array->_offset_array),
485 "just checking");
486 size_t bottom_index = _array->index_for_raw(_bottom);
487 assert(_array->address_for_index_raw(bottom_index) == _bottom,
488 "Precondition of call");
489 _array->set_offset_array_raw(bottom_index, 0);
490 }
491
492 HeapWord* G1BlockOffsetArrayContigSpace::initialize_threshold() {
493 assert(!G1CollectedHeap::heap()->is_in_reserved(_array->_offset_array),
494 "just checking");
495 _next_offset_index = _array->index_for(_bottom);
496 _next_offset_index++;
497 _next_offset_threshold =
498 _array->address_for_index(_next_offset_index);
499 return _next_offset_threshold;
500 }
501
502 void
503 G1BlockOffsetArrayContigSpace::set_for_starts_humongous(HeapWord* obj_top) {
504 // The first BOT entry should have offset 0.
505 reset_bot();
506 alloc_block(_bottom, obj_top);
507 }
508
509 #ifndef PRODUCT
510 void
511 G1BlockOffsetArrayContigSpace::print_on(outputStream* out) {
512 G1BlockOffsetArray::print_on(out);
513 out->print_cr(" next offset threshold: " PTR_FORMAT, p2i(_next_offset_threshold));
514 out->print_cr(" next offset index: " SIZE_FORMAT, _next_offset_index);
515 }
516 #endif // !PRODUCT
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