Mercurial > hg > graal-compiler
view src/share/vm/prims/jvmtiTagMap.hpp @ 8125:0026a2e70695
Merge fixes.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Tue, 05 Mar 2013 23:58:57 +0100 |
parents | 8b46b0196eb0 |
children |
line wrap: on
line source
/* * Copyright (c) 2003, 2013, 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. * */ // JvmtiTagMap #ifndef SHARE_VM_PRIMS_JVMTITAGMAP_HPP #define SHARE_VM_PRIMS_JVMTITAGMAP_HPP #include "gc_interface/collectedHeap.hpp" #include "jvmtifiles/jvmti.h" #include "jvmtifiles/jvmtiEnv.hpp" #include "memory/allocation.hpp" #include "memory/genCollectedHeap.hpp" #include "memory/universe.hpp" // forward references class JvmtiTagHashmap; class JvmtiTagHashmapEntry; class JvmtiTagHashmapEntryClosure; class JvmtiTagMap : public CHeapObj<mtInternal> { private: enum{ max_free_entries = 4096 // maximum number of free entries per env }; JvmtiEnv* _env; // the jvmti environment Mutex _lock; // lock for this tag map JvmtiTagHashmap* _hashmap; // the hashmap JvmtiTagHashmapEntry* _free_entries; // free list for this environment int _free_entries_count; // number of entries on the free list // create a tag map JvmtiTagMap(JvmtiEnv* env); // accessors inline Mutex* lock() { return &_lock; } inline JvmtiEnv* env() const { return _env; } void do_weak_oops(BoolObjectClosure* is_alive, OopClosure* f); // iterate over all entries in this tag map void entry_iterate(JvmtiTagHashmapEntryClosure* closure); public: // indicates if this tag map is locked bool is_locked() { return lock()->is_locked(); } JvmtiTagHashmap* hashmap() { return _hashmap; } // create/destroy entries JvmtiTagHashmapEntry* create_entry(oop ref, jlong tag); void destroy_entry(JvmtiTagHashmapEntry* entry); // returns true if the hashmaps are empty bool is_empty(); // return tag for the given environment static JvmtiTagMap* tag_map_for(JvmtiEnv* env); // destroy tag map ~JvmtiTagMap(); // set/get tag void set_tag(jobject obj, jlong tag); jlong get_tag(jobject obj); // deprecated heap iteration functions void iterate_over_heap(jvmtiHeapObjectFilter object_filter, KlassHandle klass, jvmtiHeapObjectCallback heap_object_callback, const void* user_data); void iterate_over_reachable_objects(jvmtiHeapRootCallback heap_root_callback, jvmtiStackReferenceCallback stack_ref_callback, jvmtiObjectReferenceCallback object_ref_callback, const void* user_data); void iterate_over_objects_reachable_from_object(jobject object, jvmtiObjectReferenceCallback object_reference_callback, const void* user_data); // advanced (JVMTI 1.1) heap iteration functions void iterate_through_heap(jint heap_filter, KlassHandle klass, const jvmtiHeapCallbacks* callbacks, const void* user_data); void follow_references(jint heap_filter, KlassHandle klass, jobject initial_object, const jvmtiHeapCallbacks* callbacks, const void* user_data); // get tagged objects jvmtiError get_objects_with_tags(const jlong* tags, jint count, jint* count_ptr, jobject** object_result_ptr, jlong** tag_result_ptr); static void weak_oops_do( BoolObjectClosure* is_alive, OopClosure* f) NOT_JVMTI_RETURN; }; #endif // SHARE_VM_PRIMS_JVMTITAGMAP_HPP