Thu, 21 Aug 2014 16:44:41 +0200
8055098: WB API should be extended to provide information about size and age of object.
Summary: Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC.
Reviewed-by: tschatzl, sjohanss
Contributed-by: Leonid Mesnik <leonid.mesnik@oracle.com>
1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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23 */
25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP
28 // The following OopClosure types get specialized versions of
29 // "oop_oop_iterate" that invoke the closures' do_oop methods
30 // non-virtually, using a mechanism defined in this file. Extend these
31 // macros in the obvious way to add specializations for new closures.
33 enum G1Barrier {
34 G1BarrierNone,
35 G1BarrierEvac,
36 G1BarrierKlass
37 };
39 enum G1Mark {
40 G1MarkNone,
41 G1MarkFromRoot,
42 G1MarkPromotedFromRoot
43 };
45 // Forward declarations.
47 template<G1Barrier barrier, G1Mark do_mark_object>
48 class G1ParCopyClosure;
50 class G1ParScanClosure;
51 class G1ParPushHeapRSClosure;
53 class FilterIntoCSClosure;
54 class FilterOutOfRegionClosure;
55 class G1CMOopClosure;
56 class G1RootRegionScanClosure;
58 // Specialized oop closures from g1RemSet.cpp
59 class G1Mux2Closure;
60 class G1TriggerClosure;
61 class G1InvokeIfNotTriggeredClosure;
62 class G1UpdateRSOrPushRefOopClosure;
64 #ifdef FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES
65 #error "FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES already defined."
66 #endif
68 #define FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES(f) \
69 f(G1ParScanClosure,_nv) \
70 f(G1ParPushHeapRSClosure,_nv) \
71 f(FilterIntoCSClosure,_nv) \
72 f(FilterOutOfRegionClosure,_nv) \
73 f(G1CMOopClosure,_nv) \
74 f(G1RootRegionScanClosure,_nv) \
75 f(G1Mux2Closure,_nv) \
76 f(G1TriggerClosure,_nv) \
77 f(G1InvokeIfNotTriggeredClosure,_nv) \
78 f(G1UpdateRSOrPushRefOopClosure,_nv)
80 #ifdef FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES
81 #error "FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES already defined."
82 #endif
84 #define FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES(f)
86 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP