Mercurial > jdk8-mips64-public > hotspot / file comparison

comparison: src/share/vm/gc_implementation/g1/heapRegionSet.hpp

src/share/vm/gc_implementation/g1/heapRegionSet.hpp

changeset 3268
8aae2050e83e
parent 2962
ae5b2f1dcf12
child 3457
0b3d1ec6eaee
equal deleted inserted replaced
3267:ed80554efa25 3268:8aae2050e83e
45 // (e.g., length, region num, used bytes sum) plus any shared 45 // (e.g., length, region num, used bytes sum) plus any shared
46 // functionality (e.g., verification). 46 // functionality (e.g., verification).
47 47
48 class hrs_ext_msg; 48 class hrs_ext_msg;
49 49
50 typedef enum {
51 HRSPhaseNone,
52 HRSPhaseEvacuation,
53 HRSPhaseCleanup,
54 HRSPhaseFullGC
55 } HRSPhase;
56
57 class HRSPhaseSetter;
58
50 class HeapRegionSetBase VALUE_OBJ_CLASS_SPEC { 59 class HeapRegionSetBase VALUE_OBJ_CLASS_SPEC {
51 friend class hrs_ext_msg; 60 friend class hrs_ext_msg;
61 friend class HRSPhaseSetter;
52 62
53 protected: 63 protected:
54 static size_t calculate_region_num(HeapRegion* hr); 64 static size_t calculate_region_num(HeapRegion* hr);
55 65
56 static size_t _unrealistically_long_length; 66 static size_t _unrealistically_long_length;
77 bool _verify_in_progress; 87 bool _verify_in_progress;
78 size_t _calc_length; 88 size_t _calc_length;
79 size_t _calc_region_num; 89 size_t _calc_region_num;
80 size_t _calc_total_capacity_bytes; 90 size_t _calc_total_capacity_bytes;
81 size_t _calc_total_used_bytes; 91 size_t _calc_total_used_bytes;
92
93 // This is here so that it can be used in the subclasses to assert
94 // something different depending on which phase the GC is in. This
95 // can be particularly helpful in the check_mt_safety() methods.
96 static HRSPhase _phase;
97
98 // Only used by HRSPhaseSetter.
99 static void clear_phase();
100 static void set_phase(HRSPhase phase);
82 101
83 // verify_region() is used to ensure that the contents of a region 102 // verify_region() is used to ensure that the contents of a region
84 // added to / removed from a set are consistent. Different sets 103 // added to / removed from a set are consistent. Different sets
85 // make different assumptions about the regions added to them. So 104 // make different assumptions about the regions added to them. So
86 // each set can override verify_region_extra(), which is called 105 // each set can override verify_region_extra(), which is called
175 hrs_ext_msg(HeapRegionSetBase* set, const char* message) : hrs_err_msg("") { 194 hrs_ext_msg(HeapRegionSetBase* set, const char* message) : hrs_err_msg("") {
176 set->fill_in_ext_msg(this, message); 195 set->fill_in_ext_msg(this, message);
177 } 196 }
178 }; 197 };
179 198
199 class HRSPhaseSetter {
200 public:
201 HRSPhaseSetter(HRSPhase phase) {
202 HeapRegionSetBase::set_phase(phase);
203 }
204 ~HRSPhaseSetter() {
205 HeapRegionSetBase::clear_phase();
206 }
207 };
208
180 // These two macros are provided for convenience, to keep the uses of 209 // These two macros are provided for convenience, to keep the uses of
181 // these two asserts a bit more concise. 210 // these two asserts a bit more concise.
182 211
183 #define hrs_assert_mt_safety_ok(_set_) \ 212 #define hrs_assert_mt_safety_ok(_set_) \
184 do { \ 213 do { \

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