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src/hotspot/share/gc/parallel/psParallelCompact.hpp

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 569 inline bool ParallelCompactData::RegionData::claim_unsafe()
 570 {
 571   if (available()) {
 572     _dc_and_los |= dc_claimed;
 573     return true;
 574   }
 575   return false;
 576 }
 577 
 578 inline void ParallelCompactData::RegionData::add_live_obj(size_t words)
 579 {
 580   assert(words <= (size_t)los_mask - live_obj_size(), "overflow");
 581   Atomic::add((int) words, (volatile int*) &_dc_and_los);
 582 }
 583 
 584 inline void ParallelCompactData::RegionData::set_highest_ref(HeapWord* addr)
 585 {
 586 #ifdef ASSERT
 587   HeapWord* tmp = _highest_ref;
 588   while (addr > tmp) {
 589     tmp = (HeapWord*)Atomic::cmpxchg_ptr(addr, &_highest_ref, tmp);
 590   }
 591 #endif  // #ifdef ASSERT
 592 }
 593 
 594 inline bool ParallelCompactData::RegionData::claim()
 595 {
 596   const region_sz_t los = static_cast<region_sz_t>(live_obj_size());
 597   const region_sz_t old = Atomic::cmpxchg(dc_claimed | los, &_dc_and_los, los);
 598   return old == los;
 599 }
 600 
 601 inline ParallelCompactData::RegionData*
 602 ParallelCompactData::region(size_t region_idx) const
 603 {
 604   assert(region_idx <= region_count(), "bad arg");
 605   return _region_data + region_idx;
 606 }
 607 
 608 inline size_t
 609 ParallelCompactData::region(const RegionData* const region_ptr) const




 569 inline bool ParallelCompactData::RegionData::claim_unsafe()
 570 {
 571   if (available()) {
 572     _dc_and_los |= dc_claimed;
 573     return true;
 574   }
 575   return false;
 576 }
 577 
 578 inline void ParallelCompactData::RegionData::add_live_obj(size_t words)
 579 {
 580   assert(words <= (size_t)los_mask - live_obj_size(), "overflow");
 581   Atomic::add((int) words, (volatile int*) &_dc_and_los);
 582 }
 583 
 584 inline void ParallelCompactData::RegionData::set_highest_ref(HeapWord* addr)
 585 {
 586 #ifdef ASSERT
 587   HeapWord* tmp = _highest_ref;
 588   while (addr > tmp) {
 589     tmp = Atomic::cmpxchg(addr, &_highest_ref, tmp);
 590   }
 591 #endif  // #ifdef ASSERT
 592 }
 593 
 594 inline bool ParallelCompactData::RegionData::claim()
 595 {
 596   const region_sz_t los = static_cast<region_sz_t>(live_obj_size());
 597   const region_sz_t old = Atomic::cmpxchg(dc_claimed | los, &_dc_and_los, los);
 598   return old == los;
 599 }
 600 
 601 inline ParallelCompactData::RegionData*
 602 ParallelCompactData::region(size_t region_idx) const
 603 {
 604   assert(region_idx <= region_count(), "bad arg");
 605   return _region_data + region_idx;
 606 }
 607 
 608 inline size_t
 609 ParallelCompactData::region(const RegionData* const region_ptr) const


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