JDK14/Java14源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef SHARE_PRIMS_RESOLVEDMETHODTABLE_HPP
#define SHARE_PRIMS_RESOLVEDMETHODTABLE_HPP

#include "memory/allocation.hpp"
#include "oops/symbol.hpp"
#include "oops/weakHandle.hpp"

class ResolvedMethodTable;
class ResolvedMethodTableConfig;

class ResolvedMethodTable : public AllStatic {
  static volatile bool            _has_work;

public:
  // Initialization
  static void create_table();

  static size_t table_size();

  // Lookup and inserts
  static oop find_method(const Method* method);
  static oop add_method(const Method* method, Handle rmethod_name);

  // Callbacks
  static void item_added();
  static void item_removed();

  // Cleaning
  static bool has_work() { return _has_work; }

  // Cleaning and table management

  static double get_load_factor();
  static double get_dead_factor();

  static void check_concurrent_work();
  static void trigger_concurrent_work();
  static void do_concurrent_work(JavaThread* jt);

  static void grow(JavaThread* jt);
  static void clean_dead_entries(JavaThread* jt);

  // GC Notification

  // Must be called before a parallel walk where objects might die.
  static void reset_dead_counter();
  // After the parallel walk this method must be called to trigger
  // cleaning. Note it might trigger a resize instead.
  static void finish_dead_counter();
  // If GC uses ParState directly it should add the number of cleared
  // entries to this method.

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