10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_GC_G1_G1BLOCKOFFSETTABLE_INLINE_HPP
26 #define SHARE_VM_GC_G1_G1BLOCKOFFSETTABLE_INLINE_HPP
27
28 #include "gc/g1/g1BlockOffsetTable.hpp"
29 #include "gc/g1/heapRegion.inline.hpp"
30 #include "gc/shared/space.hpp"
31
32 inline HeapWord* G1BlockOffsetTable::block_start(const void* addr) {
33 if (addr >= _bottom && addr < _end) {
34 return block_start_unsafe(addr);
35 } else {
36 return NULL;
37 }
38 }
39
40 inline HeapWord*
41 G1BlockOffsetTable::block_start_const(const void* addr) const {
42 if (addr >= _bottom && addr < _end) {
43 return block_start_unsafe_const(addr);
44 } else {
45 return NULL;
46 }
47 }
48
49 u_char G1BlockOffsetSharedArray::offset_array(size_t index) const {
51 return _offset_array[index];
52 }
53
54 void G1BlockOffsetSharedArray::set_offset_array(size_t index, u_char offset) {
55 check_index(index, "index out of range");
56 set_offset_array_raw(index, offset);
57 }
58
59 void G1BlockOffsetSharedArray::set_offset_array(size_t index, HeapWord* high, HeapWord* low) {
60 check_index(index, "index out of range");
61 assert(high >= low, "addresses out of order");
62 size_t offset = pointer_delta(high, low);
63 check_offset(offset, "offset too large");
64 set_offset_array(index, (u_char)offset);
65 }
66
67 void G1BlockOffsetSharedArray::set_offset_array(size_t left, size_t right, u_char offset) {
68 check_index(right, "right index out of range");
69 assert(left <= right, "indexes out of order");
70 size_t num_cards = right - left + 1;
71 if (UseMemSetInBOT) {
72 memset(&_offset_array[left], offset, num_cards);
73 } else {
74 size_t i = left;
75 const size_t end = i + num_cards;
76 for (; i < end; i++) {
77 _offset_array[i] = offset;
78 }
79 }
80 }
81
82 // Variant of index_for that does not check the index for validity.
83 inline size_t G1BlockOffsetSharedArray::index_for_raw(const void* p) const {
84 return pointer_delta((char*)p, _reserved.start(), sizeof(char)) >> LogN;
85 }
86
87 inline size_t G1BlockOffsetSharedArray::index_for(const void* p) const {
88 char* pc = (char*)p;
89 assert(pc >= (char*)_reserved.start() &&
90 pc < (char*)_reserved.end(),
91 err_msg("p (" PTR_FORMAT ") not in reserved [" PTR_FORMAT ", " PTR_FORMAT ")",
92 p2i(p), p2i(_reserved.start()), p2i(_reserved.end())));
93 size_t result = index_for_raw(p);
94 check_index(result, "bad index from address");
95 return result;
96 }
97
98 inline HeapWord*
99 G1BlockOffsetSharedArray::address_for_index(size_t index) const {
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_GC_G1_G1BLOCKOFFSETTABLE_INLINE_HPP
26 #define SHARE_VM_GC_G1_G1BLOCKOFFSETTABLE_INLINE_HPP
27
28 #include "gc/g1/g1BlockOffsetTable.hpp"
29 #include "gc/g1/heapRegion.inline.hpp"
30 #include "gc/shared/memset_with_concurrent_readers.hpp"
31 #include "gc/shared/space.hpp"
32
33 inline HeapWord* G1BlockOffsetTable::block_start(const void* addr) {
34 if (addr >= _bottom && addr < _end) {
35 return block_start_unsafe(addr);
36 } else {
37 return NULL;
38 }
39 }
40
41 inline HeapWord*
42 G1BlockOffsetTable::block_start_const(const void* addr) const {
43 if (addr >= _bottom && addr < _end) {
44 return block_start_unsafe_const(addr);
45 } else {
46 return NULL;
47 }
48 }
49
50 u_char G1BlockOffsetSharedArray::offset_array(size_t index) const {
52 return _offset_array[index];
53 }
54
55 void G1BlockOffsetSharedArray::set_offset_array(size_t index, u_char offset) {
56 check_index(index, "index out of range");
57 set_offset_array_raw(index, offset);
58 }
59
60 void G1BlockOffsetSharedArray::set_offset_array(size_t index, HeapWord* high, HeapWord* low) {
61 check_index(index, "index out of range");
62 assert(high >= low, "addresses out of order");
63 size_t offset = pointer_delta(high, low);
64 check_offset(offset, "offset too large");
65 set_offset_array(index, (u_char)offset);
66 }
67
68 void G1BlockOffsetSharedArray::set_offset_array(size_t left, size_t right, u_char offset) {
69 check_index(right, "right index out of range");
70 assert(left <= right, "indexes out of order");
71 size_t num_cards = right - left + 1;
72 memset_with_concurrent_readers(&_offset_array[left], offset, num_cards);
73 }
74
75 // Variant of index_for that does not check the index for validity.
76 inline size_t G1BlockOffsetSharedArray::index_for_raw(const void* p) const {
77 return pointer_delta((char*)p, _reserved.start(), sizeof(char)) >> LogN;
78 }
79
80 inline size_t G1BlockOffsetSharedArray::index_for(const void* p) const {
81 char* pc = (char*)p;
82 assert(pc >= (char*)_reserved.start() &&
83 pc < (char*)_reserved.end(),
84 err_msg("p (" PTR_FORMAT ") not in reserved [" PTR_FORMAT ", " PTR_FORMAT ")",
85 p2i(p), p2i(_reserved.start()), p2i(_reserved.end())));
86 size_t result = index_for_raw(p);
87 check_index(result, "bad index from address");
88 return result;
89 }
90
91 inline HeapWord*
92 G1BlockOffsetSharedArray::address_for_index(size_t index) const {
|