1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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24
25#ifndef SHARE_GC_G1_G1ROOTCLOSURES_HPP
26#define SHARE_GC_G1_G1ROOTCLOSURES_HPP
27
28#include "memory/allocation.hpp"
29#include "memory/iterator.hpp"
30
31class G1CollectedHeap;
32class G1ParScanThreadState;
33
34class G1RootClosures : public CHeapObj<mtGC> {
35public:
36 virtual ~G1RootClosures() {}
37
38// Closures to process raw oops in the root set.
39 virtual OopClosure* weak_oops() = 0;
40 virtual OopClosure* strong_oops() = 0;
41
42 // Closures to process CLDs in the root set.
43 virtual CLDClosure* weak_clds() = 0;
44 virtual CLDClosure* strong_clds() = 0;
45
46 // Applied to code blobs reachable as strong roots.
47 virtual CodeBlobClosure* strong_codeblobs() = 0;
48};
49
50class G1EvacuationRootClosures : public G1RootClosures {
51public:
52 // Applied to the weakly reachable CLDs when all strongly reachable
53 // CLDs are guaranteed to have been processed.
54 virtual CLDClosure* second_pass_weak_clds() = 0;
55
56 // Get a raw oop closure for processing oops, bypassing the flushing above.
57 virtual OopClosure* raw_strong_oops() = 0;
58
59 // Applied to code blobs treated as weak roots.
60 virtual CodeBlobClosure* weak_codeblobs() = 0;
61
62 // Is this closure used for tracing metadata?
63 virtual bool trace_metadata() = 0;
64
65 static G1EvacuationRootClosures* create_root_closures(G1ParScanThreadState* pss, G1CollectedHeap* g1h);
66};
67
68#endif // SHARE_GC_G1_G1ROOTCLOSURES_HPP
69