mirror of
https://github.com/openjdk/jdk.git
synced 2026-02-12 19:35:24 +00:00
103 lines
3.3 KiB
C++
103 lines
3.3 KiB
C++
/*
|
|
* Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* 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).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*
|
|
*/
|
|
|
|
#ifndef SHARE_PRIMS_RESOLVEDMETHODTABLE_HPP
|
|
#define SHARE_PRIMS_RESOLVEDMETHODTABLE_HPP
|
|
|
|
#include "gc/shared/oopStorage.hpp"
|
|
#include "gc/shared/oopStorageParState.hpp"
|
|
#include "memory/allocation.hpp"
|
|
#include "oops/symbol.hpp"
|
|
#include "oops/weakHandle.hpp"
|
|
#include "utilities/concurrentHashTable.hpp"
|
|
#include "utilities/hashtable.hpp"
|
|
|
|
class ResolvedMethodTable;
|
|
class ResolvedMethodTableConfig;
|
|
typedef ConcurrentHashTable<WeakHandle<vm_resolved_method_table_data>, ResolvedMethodTableConfig, mtClass> ResolvedMethodTableHash;
|
|
|
|
class ResolvedMethodTable : public AllStatic {
|
|
static ResolvedMethodTableHash* _local_table;
|
|
static size_t _current_size;
|
|
|
|
static OopStorage* _weak_handles;
|
|
|
|
static volatile bool _has_work;
|
|
|
|
static volatile size_t _items_count;
|
|
static volatile size_t _uncleaned_items_count;
|
|
|
|
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();
|
|
|
|
// GC Support - Backing storage for the oop*s
|
|
static OopStorage* weak_storage();
|
|
|
|
// 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.
|
|
static void inc_dead_counter(size_t ndead);
|
|
|
|
// JVMTI Support - It is called at safepoint only for RedefineClasses
|
|
JVMTI_ONLY(static void adjust_method_entries(bool * trace_name_printed);)
|
|
|
|
// Debugging
|
|
static size_t items_count();
|
|
static void verify();
|
|
};
|
|
|
|
#endif // SHARE_PRIMS_RESOLVEDMETHODTABLE_HPP
|