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_OOPS_OOPHANDLE_HPP
26 #define SHARE_OOPS_OOPHANDLE_HPP
27
28 #include "oops/oop.hpp"
29
30 // Simple class for encapsulating oop pointers stored in metadata.
31 // These are different from Handle. The Handle class stores pointers
32 // to oops on the stack, and manages the allocation from a thread local
33 // area in the constructor.
34 // This assumes that the caller will allocate the handle in the appropriate
35 // area. The reason for the encapsulation is to help with naming and to allow
36 // future uses for read barriers.
37
38 class OopHandle {
39 private:
40 oop* _obj;
41
42 public:
43 OopHandle() : _obj(NULL) {}
44 OopHandle(oop* w) : _obj(w) {}
45
46 inline oop resolve() const;
47 inline oop peek() const;
48
49 // Used only for removing handle.
50 oop* ptr_raw() const { return _obj; }
51 };
52
53 #endif // SHARE_OOPS_OOPHANDLE_HPP
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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_OOPS_OOPHANDLE_HPP
26 #define SHARE_OOPS_OOPHANDLE_HPP
27
28 #include "oops/oop.hpp"
29
30 // Simple class for encapsulating oop pointers stored in metadata.
31 // These are different from Handle. The Handle class stores pointers
32 // to oops on the stack, and manages the allocation from a thread local
33 // area in the constructor.
34 // This assumes that the caller will allocate the handle in the appropriate
35 // area. The reason for the encapsulation is to help with naming and to allow
36 // future uses for read barriers.
37
38 class OopHandle {
39 friend class VMStructs;
40 private:
41 oop* _obj;
42
43 public:
44 OopHandle() : _obj(NULL) {}
45 OopHandle(oop* w) : _obj(w) {}
46
47 inline oop resolve() const;
48 inline oop peek() const;
49
50 // Used only for removing handle.
51 oop* ptr_raw() const { return _obj; }
52 };
53
54 #endif // SHARE_OOPS_OOPHANDLE_HPP
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