src/hotspot/share/gc/shared/genCollectedHeap.hpp

rev 47476 : 8183542: Factor out serial GC specific code from GenCollectedHeap into its own subclass

*** 81,90 ****
--- 81,96 ----
    // Collects the given generation.
    void collect_generation(Generation* gen, bool full, size_t size, bool is_tlab,
                            bool run_verification, bool clear_soft_refs,
                            bool restore_marks_for_biased_locking);
  
+   // Reserve aligned space for the heap as needed by the contained generations.
+   char* allocate(size_t alignment, ReservedSpace* heap_rs);
+ 
+   // Initialize ("weak") refs processing support
+   void ref_processing_init();
+ 
  protected:
  
    // The set of potentially parallel tasks in root scanning.
    enum GCH_strong_roots_tasks {
      GCH_PS_Universe_oops_do,
*** 132,166 ****
  
    // Does the "cause" of GC indicate that
    // we absolutely __must__ clear soft refs?
    bool must_clear_all_soft_refs();
  
- public:
    GenCollectedHeap(GenCollectorPolicy *policy);
  
    // Returns JNI_OK on success
    virtual jint initialize();
  
-   // Reserve aligned space for the heap as needed by the contained generations.
-   char* allocate(size_t alignment, ReservedSpace* heap_rs);
- 
    // Does operations required after initialization has been done.
    void post_initialize();
  
-   virtual void check_gen_kinds();
- 
-   // Initialize ("weak") refs processing support
-   virtual void ref_processing_init();
- 
-   virtual Name kind() const {
-     return CollectedHeap::GenCollectedHeap;
-   }
- 
-   virtual const char* name() const {
-     return "Serial";
-   }
- 
    Generation* young_gen() const { return _young_gen; }
    Generation* old_gen()   const { return _old_gen; }
  
    bool is_young_gen(const Generation* gen) const { return gen == _young_gen; }
    bool is_old_gen(const Generation* gen) const { return gen == _old_gen; }
--- 138,159 ----
  
    // Does the "cause" of GC indicate that
    // we absolutely __must__ clear soft refs?
    bool must_clear_all_soft_refs();
  
    GenCollectedHeap(GenCollectorPolicy *policy);
  
+   virtual void check_gen_kinds() = 0;
+ 
+ public:
+ 
    // Returns JNI_OK on success
    virtual jint initialize();
  
    // Does operations required after initialization has been done.
    void post_initialize();
  
    Generation* young_gen() const { return _young_gen; }
    Generation* old_gen()   const { return _old_gen; }
  
    bool is_young_gen(const Generation* gen) const { return gen == _young_gen; }
    bool is_old_gen(const Generation* gen) const { return gen == _old_gen; }
*** 213,227 ****
    // be expensive to compute in general, so, to prevent
    // their inadvertent use in product jvm's, we restrict their use to
    // assertion checking or verification only.
    bool is_in(const void* p) const;
  
-   // override
-   virtual bool is_in_closed_subset(const void* p) const {
-     return is_in(p);
-   }
- 
    // Returns true if the reference is to an object in the reserved space
    // for the young generation.
    // Assumes the the young gen address range is less than that of the old gen.
    bool is_in_young(oop p);
  
--- 206,215 ----
*** 284,297 ****
    // via a TLAB up to the first subsequent safepoint.
    virtual bool can_elide_tlab_store_barriers() const {
      return true;
    }
  
-   virtual bool card_mark_must_follow_store() const {
-     return false;
-   }
- 
    // We don't need barriers for stores to objects in the
    // young gen and, a fortiori, for initializing stores to
    // objects therein. This applies to DefNew+Tenured and ParNew+CMS
    // only and may need to be re-examined in case other
    // kinds of collectors are implemented in the future.
--- 272,281 ----