1.1 --- a/src/share/vm/services/memTrackWorker.hpp Wed Aug 27 09:36:55 2014 +0200
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,118 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation.
1.11 - *
1.12 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 - * version 2 for more details (a copy is included in the LICENSE file that
1.16 - * accompanied this code).
1.17 - *
1.18 - * You should have received a copy of the GNU General Public License version
1.19 - * 2 along with this work; if not, write to the Free Software Foundation,
1.20 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 - *
1.22 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 - * or visit www.oracle.com if you need additional information or have any
1.24 - * questions.
1.25 - *
1.26 - */
1.27 -
1.28 -#ifndef SHARE_VM_SERVICES_MEM_TRACK_WORKER_HPP
1.29 -#define SHARE_VM_SERVICES_MEM_TRACK_WORKER_HPP
1.30 -
1.31 -#include "memory/allocation.hpp"
1.32 -#include "runtime/thread.hpp"
1.33 -#include "services/memRecorder.hpp"
1.34 -
1.35 -// Maximum MAX_GENERATIONS generation data can be tracked.
1.36 -#define MAX_GENERATIONS 512
1.37 -
1.38 -class GenerationData VALUE_OBJ_CLASS_SPEC {
1.39 - private:
1.40 - int _number_of_classes;
1.41 - MemRecorder* _recorder_list;
1.42 -
1.43 - public:
1.44 - GenerationData(): _number_of_classes(0), _recorder_list(NULL) { }
1.45 -
1.46 - inline int number_of_classes() const { return _number_of_classes; }
1.47 - inline void set_number_of_classes(long num) { _number_of_classes = num; }
1.48 -
1.49 - inline MemRecorder* next_recorder() {
1.50 - if (_recorder_list == NULL) {
1.51 - return NULL;
1.52 - } else {
1.53 - MemRecorder* tmp = _recorder_list;
1.54 - _recorder_list = _recorder_list->next();
1.55 - return tmp;
1.56 - }
1.57 - }
1.58 -
1.59 - inline bool has_more_recorder() const {
1.60 - return (_recorder_list != NULL);
1.61 - }
1.62 -
1.63 - // add recorders to this generation
1.64 - void add_recorders(MemRecorder* head) {
1.65 - if (head != NULL) {
1.66 - if (_recorder_list == NULL) {
1.67 - _recorder_list = head;
1.68 - } else {
1.69 - MemRecorder* tmp = _recorder_list;
1.70 - for (; tmp->next() != NULL; tmp = tmp->next());
1.71 - tmp->set_next(head);
1.72 - }
1.73 - }
1.74 - }
1.75 -
1.76 - void reset();
1.77 -
1.78 - NOT_PRODUCT(MemRecorder* peek() const { return _recorder_list; })
1.79 -};
1.80 -
1.81 -class MemTrackWorker : public NamedThread {
1.82 - private:
1.83 - // circular buffer. This buffer contains generation data to be merged into global
1.84 - // snaphsot.
1.85 - // Each slot holds a generation
1.86 - GenerationData _gen[MAX_GENERATIONS];
1.87 - int _head, _tail; // head and tail pointers to above circular buffer
1.88 -
1.89 - bool _has_error;
1.90 -
1.91 - MemSnapshot* _snapshot;
1.92 -
1.93 - public:
1.94 - MemTrackWorker(MemSnapshot* snapshot);
1.95 - ~MemTrackWorker();
1.96 - _NOINLINE_ void* operator new(size_t size) throw();
1.97 - _NOINLINE_ void* operator new(size_t size, const std::nothrow_t& nothrow_constant) throw();
1.98 -
1.99 - void start();
1.100 - void run();
1.101 -
1.102 - inline bool has_error() const { return _has_error; }
1.103 -
1.104 - // task at synchronization point
1.105 - void at_sync_point(MemRecorder* pending_recorders, int number_of_classes);
1.106 -
1.107 - // for debugging purpose, they are not thread safe.
1.108 - NOT_PRODUCT(static int count_recorder(const MemRecorder* head);)
1.109 - NOT_PRODUCT(int count_pending_recorders() const;)
1.110 -
1.111 - NOT_PRODUCT(int _sync_point_count;)
1.112 - NOT_PRODUCT(int _merge_count;)
1.113 - NOT_PRODUCT(int _last_gen_in_use;)
1.114 -
1.115 - // how many generations are queued
1.116 - inline int generations_in_use() const {
1.117 - return (_tail >= _head ? (_tail - _head + 1) : (MAX_GENERATIONS - (_head - _tail) + 1));
1.118 - }
1.119 -};
1.120 -
1.121 -#endif // SHARE_VM_SERVICES_MEM_TRACK_WORKER_HPP
