100 size_t desired_word_size,
101 size_t* actual_size) {
102 MutexLocker x(&_par_alloc_lock);
103 return allocate(min_word_size, desired_word_size, actual_size);
104 }
105
106 inline HeapWord* G1OffsetTableContigSpace::block_start(const void* p) {
107 return _offsets.block_start(p);
108 }
109
110 inline HeapWord*
111 G1OffsetTableContigSpace::block_start_const(const void* p) const {
112 return _offsets.block_start_const(p);
113 }
114
115 inline bool
116 HeapRegion::block_is_obj(const HeapWord* p) const {
117 G1CollectedHeap* g1h = G1CollectedHeap::heap();
118
119 if (!this->is_in(p)) {
120 HeapRegion* hr = g1h->heap_region_containing(p);
121 #ifdef ASSERT
122 assert(hr->is_humongous(), "This case can only happen for humongous regions");
123 oop obj = oop(hr->humongous_start_region()->bottom());
124 assert((HeapWord*)obj <= p, "p must be in humongous object");
125 assert(p <= (HeapWord*)obj + obj->size(), "p must be in humongous object");
126 #endif
127 return hr->block_is_obj(p);
128 }
129 if (ClassUnloadingWithConcurrentMark) {
130 return !g1h->is_obj_dead(oop(p), this);
131 }
132 return p < top();
133 }
134
135 inline size_t
136 HeapRegion::block_size(const HeapWord *addr) const {
137 if (addr == top()) {
138 return pointer_delta(end(), addr);
139 }
140
141 if (block_is_obj(addr)) {
142 return oop(addr)->size();
143 }
144
145 assert(ClassUnloadingWithConcurrentMark,
146 "All blocks should be objects if G1 Class Unloading isn't used. "
147 "HR: [" PTR_FORMAT ", " PTR_FORMAT ", " PTR_FORMAT ") "
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100 size_t desired_word_size,
101 size_t* actual_size) {
102 MutexLocker x(&_par_alloc_lock);
103 return allocate(min_word_size, desired_word_size, actual_size);
104 }
105
106 inline HeapWord* G1OffsetTableContigSpace::block_start(const void* p) {
107 return _offsets.block_start(p);
108 }
109
110 inline HeapWord*
111 G1OffsetTableContigSpace::block_start_const(const void* p) const {
112 return _offsets.block_start_const(p);
113 }
114
115 inline bool
116 HeapRegion::block_is_obj(const HeapWord* p) const {
117 G1CollectedHeap* g1h = G1CollectedHeap::heap();
118
119 if (!this->is_in(p)) {
120 assert(is_continues_humongous(), "This case can only happen for humongous regions");
121 return (p == humongous_start_region()->bottom());
122 }
123 if (ClassUnloadingWithConcurrentMark) {
124 return !g1h->is_obj_dead(oop(p), this);
125 }
126 return p < top();
127 }
128
129 inline size_t
130 HeapRegion::block_size(const HeapWord *addr) const {
131 if (addr == top()) {
132 return pointer_delta(end(), addr);
133 }
134
135 if (block_is_obj(addr)) {
136 return oop(addr)->size();
137 }
138
139 assert(ClassUnloadingWithConcurrentMark,
140 "All blocks should be objects if G1 Class Unloading isn't used. "
141 "HR: [" PTR_FORMAT ", " PTR_FORMAT ", " PTR_FORMAT ") "
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