Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/memory/barrierSet.hpp
src/share/vm/memory/barrierSet.hpp
- changeset 548
- ba764ed4b6f2
- parent 435
- a61af66fc99e
- child 631
- d1605aabd0a1
- child 777
- 37f87013dfd8
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| 545:a49a647afe9a | 548:ba764ed4b6f2 |
|---|---|
| 52 virtual bool has_write_ref_barrier() = 0; | 52 virtual bool has_write_ref_barrier() = 0; |
| 53 virtual bool has_write_prim_barrier() = 0; | 53 virtual bool has_write_prim_barrier() = 0; |
| 54 | 54 |
| 55 // These functions indicate whether a particular access of the given | 55 // These functions indicate whether a particular access of the given |
| 56 // kinds requires a barrier. | 56 // kinds requires a barrier. |
| 57 virtual bool read_ref_needs_barrier(oop* field) = 0; | 57 virtual bool read_ref_needs_barrier(void* field) = 0; |
| 58 virtual bool read_prim_needs_barrier(HeapWord* field, size_t bytes) = 0; | 58 virtual bool read_prim_needs_barrier(HeapWord* field, size_t bytes) = 0; |
| 59 virtual bool write_ref_needs_barrier(oop* field, oop new_val) = 0; | 59 virtual bool write_ref_needs_barrier(void* field, oop new_val) = 0; |
| 60 virtual bool write_prim_needs_barrier(HeapWord* field, size_t bytes, juint val1, juint val2) = 0; | 60 virtual bool write_prim_needs_barrier(HeapWord* field, size_t bytes, juint val1, juint val2) = 0; |
| 61 | 61 |
| 62 // The first four operations provide a direct implementation of the | 62 // The first four operations provide a direct implementation of the |
| 63 // barrier set. An interpreter loop, for example, could call these | 63 // barrier set. An interpreter loop, for example, could call these |
| 64 // directly, as appropriate. | 64 // directly, as appropriate. |
| 65 | 65 |
| 66 // Invoke the barrier, if any, necessary when reading the given ref field. | 66 // Invoke the barrier, if any, necessary when reading the given ref field. |
| 67 virtual void read_ref_field(oop* field) = 0; | 67 virtual void read_ref_field(void* field) = 0; |
| 68 | 68 |
| 69 // Invoke the barrier, if any, necessary when reading the given primitive | 69 // Invoke the barrier, if any, necessary when reading the given primitive |
| 70 // "field" of "bytes" bytes in "obj". | 70 // "field" of "bytes" bytes in "obj". |
| 71 virtual void read_prim_field(HeapWord* field, size_t bytes) = 0; | 71 virtual void read_prim_field(HeapWord* field, size_t bytes) = 0; |
| 72 | 72 |
| 73 // Invoke the barrier, if any, necessary when writing "new_val" into the | 73 // Invoke the barrier, if any, necessary when writing "new_val" into the |
| 74 // ref field at "offset" in "obj". | 74 // ref field at "offset" in "obj". |
| 75 // (For efficiency reasons, this operation is specialized for certain | 75 // (For efficiency reasons, this operation is specialized for certain |
| 76 // barrier types. Semantically, it should be thought of as a call to the | 76 // barrier types. Semantically, it should be thought of as a call to the |
| 77 // virtual "_work" function below, which must implement the barrier.) | 77 // virtual "_work" function below, which must implement the barrier.) |
| 78 inline void write_ref_field(oop* field, oop new_val); | 78 inline void write_ref_field(void* field, oop new_val); |
| 79 protected: | 79 protected: |
| 80 virtual void write_ref_field_work(oop* field, oop new_val) = 0; | 80 virtual void write_ref_field_work(void* field, oop new_val) = 0; |
| 81 public: | 81 public: |
| 82 | 82 |
| 83 // Invoke the barrier, if any, necessary when writing the "bytes"-byte | 83 // Invoke the barrier, if any, necessary when writing the "bytes"-byte |
| 84 // value(s) "val1" (and "val2") into the primitive "field". | 84 // value(s) "val1" (and "val2") into the primitive "field". |
| 85 virtual void write_prim_field(HeapWord* field, size_t bytes, | 85 virtual void write_prim_field(HeapWord* field, size_t bytes, |
