src/share/vm/runtime/thread.hpp

rev 6875 : 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
Reviewed-by: mgerdin, coleenp, bdelsart

*** 40,54 ****
  #include "runtime/safepoint.hpp"
  #include "runtime/stubRoutines.hpp"
  #include "runtime/threadLocalStorage.hpp"
  #include "runtime/thread_ext.hpp"
  #include "runtime/unhandledOops.hpp"
- #include "utilities/macros.hpp"
- 
  #include "trace/traceBackend.hpp"
  #include "trace/traceMacros.hpp"
  #include "utilities/exceptions.hpp"
  #include "utilities/top.hpp"
  #if INCLUDE_ALL_GCS
  #include "gc_implementation/g1/dirtyCardQueue.hpp"
  #include "gc_implementation/g1/satbQueue.hpp"
  #endif // INCLUDE_ALL_GCS
--- 40,53 ----
  #include "runtime/safepoint.hpp"
  #include "runtime/stubRoutines.hpp"
  #include "runtime/threadLocalStorage.hpp"
  #include "runtime/thread_ext.hpp"
  #include "runtime/unhandledOops.hpp"
  #include "trace/traceBackend.hpp"
  #include "trace/traceMacros.hpp"
  #include "utilities/exceptions.hpp"
+ #include "utilities/macros.hpp"
  #include "utilities/top.hpp"
  #if INCLUDE_ALL_GCS
  #include "gc_implementation/g1/dirtyCardQueue.hpp"
  #include "gc_implementation/g1/satbQueue.hpp"
  #endif // INCLUDE_ALL_GCS
*** 81,90 ****
--- 80,93 ----
  
  class GCTaskQueue;
  class ThreadClosure;
  class IdealGraphPrinter;
  
+ class Metadata;
+ template <class T, MEMFLAGS F> class ChunkedList;
+ typedef ChunkedList<Metadata*, mtInternal> MetadataOnStackBuffer;
+ 
  DEBUG_ONLY(class ResourceMark;)
  
  class WorkerThread;
  
  // Class hierarchy
*** 254,263 ****
--- 257,269 ----
  
    ThreadLocalAllocBuffer _tlab;                 // Thread-local eden
    jlong _allocated_bytes;                       // Cumulative number of bytes allocated on
                                                  // the Java heap
  
+   // Thread-local buffer used by MetadataOnStackMark.
+   MetadataOnStackBuffer* _metadata_on_stack_buffer;
+ 
    TRACE_DATA _trace_data;                       // Thread-local data for tracing
  
    ThreadExt _ext;
  
    int   _vm_operation_started_count;            // VM_Operation support
*** 515,525 ****
  
    // Sets this thread as starting thread. Returns failure if thread
    // creation fails due to lack of memory, too many threads etc.
    bool set_as_starting_thread();
  
!  protected:
    // OS data associated with the thread
    OSThread* _osthread;  // Platform-specific thread information
  
    // Thread local resource area for temporary allocation within the VM
    ResourceArea* _resource_area;
--- 521,534 ----
  
    // Sets this thread as starting thread. Returns failure if thread
    // creation fails due to lack of memory, too many threads etc.
    bool set_as_starting_thread();
  
!   void set_metadata_on_stack_buffer(MetadataOnStackBuffer* buffer) { _metadata_on_stack_buffer = buffer; }
!   MetadataOnStackBuffer* metadata_on_stack_buffer() const          { return _metadata_on_stack_buffer; }
! 
! protected:
    // OS data associated with the thread
    OSThread* _osthread;  // Platform-specific thread information
  
    // Thread local resource area for temporary allocation within the VM
    ResourceArea* _resource_area;