Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/memory/referenceProcessor.hpp
src/share/vm/memory/referenceProcessor.hpp
- changeset 3188
- d1bdeef3e3e2
- parent 3175
- 4dfb2df418f2
- child 3210
- bf2d2b8b1726
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| 3187:3f24f946bc2d | 3188:d1bdeef3e3e2 |
|---|---|
| 199 _ref = _next; | 199 _ref = _next; |
| 200 } | 200 } |
| 201 assert(_ref != _first_seen, "cyclic ref_list found"); | 201 assert(_ref != _first_seen, "cyclic ref_list found"); |
| 202 NOT_PRODUCT(_processed++); | 202 NOT_PRODUCT(_processed++); |
| 203 } | 203 } |
| 204 | |
| 205 }; | 204 }; |
| 206 | 205 |
| 207 class ReferenceProcessor : public CHeapObj { | 206 class ReferenceProcessor : public CHeapObj { |
| 208 protected: | 207 protected: |
| 209 // Compatibility with pre-4965777 JDK's | 208 // Compatibility with pre-4965777 JDK's |
| 210 static bool _pending_list_uses_discovered_field; | 209 static bool _pending_list_uses_discovered_field; |
| 210 | |
| 211 // The SoftReference master timestamp clock | |
| 212 static jlong _soft_ref_timestamp_clock; | |
| 211 | 213 |
| 212 MemRegion _span; // (right-open) interval of heap | 214 MemRegion _span; // (right-open) interval of heap |
| 213 // subject to wkref discovery | 215 // subject to wkref discovery |
| 214 | 216 |
| 215 bool _discovering_refs; // true when discovery enabled | 217 bool _discovering_refs; // true when discovery enabled |
| 454 // get and set span | 456 // get and set span |
| 455 MemRegion span() { return _span; } | 457 MemRegion span() { return _span; } |
| 456 void set_span(MemRegion span) { _span = span; } | 458 void set_span(MemRegion span) { _span = span; } |
| 457 | 459 |
| 458 // start and stop weak ref discovery | 460 // start and stop weak ref discovery |
| 459 void enable_discovery(bool verify_disabled, bool check_no_refs) { | 461 void enable_discovery(bool verify_disabled, bool check_no_refs); |
| 460 #ifdef ASSERT | |
| 461 // Verify that we're not currently discovering refs | |
| 462 assert(!verify_disabled || !_discovering_refs, "nested call?"); | |
| 463 | |
| 464 if (check_no_refs) { | |
| 465 // Verify that the discovered lists are empty | |
| 466 verify_no_references_recorded(); | |
| 467 } | |
| 468 #endif // ASSERT | |
| 469 _discovering_refs = true; | |
| 470 } | |
| 471 | |
| 472 void disable_discovery() { _discovering_refs = false; } | 462 void disable_discovery() { _discovering_refs = false; } |
| 473 bool discovery_enabled() { return _discovering_refs; } | 463 bool discovery_enabled() { return _discovering_refs; } |
| 474 | 464 |
| 475 // whether discovery is atomic wrt other collectors | 465 // whether discovery is atomic wrt other collectors |
| 476 bool discovery_is_atomic() const { return _discovery_is_atomic; } | 466 bool discovery_is_atomic() const { return _discovery_is_atomic; } |
