--- a/hotspot/src/share/vm/prims/jvmtiTagMap.hpp Mon Jan 10 09:23:20 2011 -0800
+++ b/hotspot/src/share/vm/prims/jvmtiTagMap.hpp Mon Jan 10 17:14:53 2011 -0500
@@ -45,17 +45,12 @@
private:
enum{
- n_hashmaps = 2, // encapsulates 2 hashmaps
- max_free_entries = 4096 // maximum number of free entries per env
+ max_free_entries = 4096 // maximum number of free entries per env
};
- // memory region for young generation
- static MemRegion _young_gen;
- static void get_young_generation();
-
JvmtiEnv* _env; // the jvmti environment
Mutex _lock; // lock for this tag map
- JvmtiTagHashmap* _hashmap[n_hashmaps]; // the hashmaps
+ JvmtiTagHashmap* _hashmap; // the hashmap
JvmtiTagHashmapEntry* _free_entries; // free list for this environment
int _free_entries_count; // number of entries on the free list
@@ -67,11 +62,7 @@
inline Mutex* lock() { return &_lock; }
inline JvmtiEnv* env() const { return _env; }
- // rehash tags maps for generation start to end
- void rehash(int start, int end);
-
- // indicates if the object is in the young generation
- static bool is_in_young(oop o);
+ void do_weak_oops(BoolObjectClosure* is_alive, OopClosure* f);
// iterate over all entries in this tag map
void entry_iterate(JvmtiTagHashmapEntryClosure* closure);
@@ -81,11 +72,10 @@
// indicates if this tag map is locked
bool is_locked() { return lock()->is_locked(); }
- // return the appropriate hashmap for a given object
- JvmtiTagHashmap* hashmap_for(oop o);
+ JvmtiTagHashmap* hashmap() { return _hashmap; }
// create/destroy entries
- JvmtiTagHashmapEntry* create_entry(jweak ref, jlong tag);
+ JvmtiTagHashmapEntry* create_entry(oop ref, jlong tag);
void destroy_entry(JvmtiTagHashmapEntry* entry);
// returns true if the hashmaps are empty
@@ -134,11 +124,8 @@
jint* count_ptr, jobject** object_result_ptr,
jlong** tag_result_ptr);
- // call post-GC to rehash the tag maps.
- static void gc_epilogue(bool full);
-
- // call after referencing processing has completed (CMS)
- static void cms_ref_processing_epilogue();
+ static void weak_oops_do(
+ BoolObjectClosure* is_alive, OopClosure* f) KERNEL_RETURN;
};
#endif // SHARE_VM_PRIMS_JVMTITAGMAP_HPP