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 #include "precompiled.hpp"
26 #include "memory/allocation.hpp"
27 #include "memory/metaspace/metachunk.hpp"
28 #include "memory/metaspace/occupancyMap.hpp"
29 #include "memory/metaspace/virtualSpaceNode.hpp"
30 #include "utilities/align.hpp"
31 #include "utilities/copy.hpp"
32 #include "utilities/debug.hpp"
33
34 namespace metaspace {
35 namespace internals {
36
37 size_t Metachunk::object_alignment() {
38 // Must align pointers and sizes to 8,
39 // so that 64 bit types get correctly aligned.
40 const size_t alignment = 8;
41
42 // Make sure that the Klass alignment also agree.
43 STATIC_ASSERT(alignment == (size_t)KlassAlignmentInBytes);
44
45 return alignment;
46 }
47
48 size_t Metachunk::overhead() {
49 return align_up(sizeof(Metachunk), object_alignment()) / BytesPerWord;
50 }
51
52 // Metachunk methods
53
54 Metachunk::Metachunk(ChunkIndex chunktype, bool is_class, size_t word_size,
55 VirtualSpaceNode* container)
153
154 #ifdef ASSERT
155 void do_verify_chunk(Metachunk* chunk) {
156 guarantee(chunk != NULL, "Sanity");
157 // Verify chunk itself; then verify that it is consistent with the
158 // occupany map of its containing node.
159 chunk->verify();
160 VirtualSpaceNode* const vsn = chunk->container();
161 OccupancyMap* const ocmap = vsn->occupancy_map();
162 ocmap->verify_for_chunk(chunk);
163 }
164 #endif
165
166 void do_update_in_use_info_for_chunk(Metachunk* chunk, bool inuse) {
167 chunk->set_is_tagged_free(!inuse);
168 OccupancyMap* const ocmap = chunk->container()->occupancy_map();
169 ocmap->set_region_in_use((MetaWord*)chunk, chunk->word_size(), inuse);
170 }
171
172 } // namespace metaspace
173 } // namespace internals
|
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 #include "precompiled.hpp"
26 #include "memory/allocation.hpp"
27 #include "memory/metaspace/metachunk.hpp"
28 #include "memory/metaspace/occupancyMap.hpp"
29 #include "memory/metaspace/virtualSpaceNode.hpp"
30 #include "utilities/align.hpp"
31 #include "utilities/copy.hpp"
32 #include "utilities/debug.hpp"
33
34 namespace metaspace {
35
36 size_t Metachunk::object_alignment() {
37 // Must align pointers and sizes to 8,
38 // so that 64 bit types get correctly aligned.
39 const size_t alignment = 8;
40
41 // Make sure that the Klass alignment also agree.
42 STATIC_ASSERT(alignment == (size_t)KlassAlignmentInBytes);
43
44 return alignment;
45 }
46
47 size_t Metachunk::overhead() {
48 return align_up(sizeof(Metachunk), object_alignment()) / BytesPerWord;
49 }
50
51 // Metachunk methods
52
53 Metachunk::Metachunk(ChunkIndex chunktype, bool is_class, size_t word_size,
54 VirtualSpaceNode* container)
152
153 #ifdef ASSERT
154 void do_verify_chunk(Metachunk* chunk) {
155 guarantee(chunk != NULL, "Sanity");
156 // Verify chunk itself; then verify that it is consistent with the
157 // occupany map of its containing node.
158 chunk->verify();
159 VirtualSpaceNode* const vsn = chunk->container();
160 OccupancyMap* const ocmap = vsn->occupancy_map();
161 ocmap->verify_for_chunk(chunk);
162 }
163 #endif
164
165 void do_update_in_use_info_for_chunk(Metachunk* chunk, bool inuse) {
166 chunk->set_is_tagged_free(!inuse);
167 OccupancyMap* const ocmap = chunk->container()->occupancy_map();
168 ocmap->set_region_in_use((MetaWord*)chunk, chunk->word_size(), inuse);
169 }
170
171 } // namespace metaspace
172
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