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_OOPS_VALUEARRAYOOP_HPP
26 #define SHARE_VM_OOPS_VALUEARRAYOOP_HPP
27
28 #include "oops/arrayOop.hpp"
29 #include "oops/klass.hpp"
30 #include "oops/oop.inline.hpp"
31
32 // A valueArrayOop is an array containing value types (may include flatten embedded oop elements).
33
34 class valueArrayOopDesc : public arrayOopDesc {
35
36 public:
37 void* base() const;
38 void* value_at_addr(int index, jint lh) const;
39 // Sizing
40 static size_t element_size(int lh, int nof_elements) {
41 return nof_elements << Klass::layout_helper_log2_element_size(lh);
42 }
43
44 static int object_size(int lh, int length) {
45 julong size_in_bytes = header_size_in_bytes() + element_size(lh, length);
46 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize);
47 assert(size_in_words <= (julong)max_jint, "no overflow");
48 return align_object_size((intptr_t)size_in_words);
49 }
50
51 int object_size() const;
52
53 };
54
55 #endif // SHARE_VM_OOPS_VALUEARRAYOOP_HPP
|
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_OOPS_VALUEARRAYOOP_HPP
26 #define SHARE_VM_OOPS_VALUEARRAYOOP_HPP
27
28 #include "oops/arrayOop.hpp"
29 #include "oops/klass.hpp"
30 #include "oops/oop.inline.hpp"
31
32 // A valueArrayOop is an array containing value types (may include flatten embedded oop elements).
33
34 class valueArrayOopDesc : public arrayOopDesc {
35
36 public:
37 void* base() const;
38 void* value_at_addr(int index, jint lh) const;
39
40 // Return a buffered element from index
41 static oop value_copy_from_index(valueArrayHandle vah, int index, TRAPS);
42 void value_copy_from_index(int index, oop dst) const;
43 void value_copy_to_index(oop src, int index) const;
44
45 // Sizing
46 static size_t element_size(int lh, int nof_elements) {
47 return nof_elements << Klass::layout_helper_log2_element_size(lh);
48 }
49
50 static int object_size(int lh, int length) {
51 julong size_in_bytes = header_size_in_bytes() + element_size(lh, length);
52 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize);
53 assert(size_in_words <= (julong)max_jint, "no overflow");
54 return align_object_size((intptr_t)size_in_words);
55 }
56
57 int object_size() const;
58
59 };
60
61 #endif // SHARE_VM_OOPS_VALUEARRAYOOP_HPP
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