1/*
2 * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25#include "precompiled.hpp"
26#include "gc/serial/cSpaceCounters.hpp"
27#include "memory/allocation.inline.hpp"
28#include "memory/metaspace.hpp"
29#include "memory/resourceArea.hpp"
30
31CSpaceCounters::CSpaceCounters(const char* name, int ordinal, size_t max_size,
32 ContiguousSpace* s, GenerationCounters* gc) :
33 _space(s) {
34
35 if (UsePerfData) {
36 EXCEPTION_MARK;
37 ResourceMark rm;
38
39 const char* cns = PerfDataManager::name_space(gc->name_space(), "space",
40 ordinal);
41
42 _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtGC);
43 strcpy(_name_space, cns);
44
45 const char* cname = PerfDataManager::counter_name(_name_space, "name");
46 PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK);
47
48 cname = PerfDataManager::counter_name(_name_space, "maxCapacity");
49 _max_capacity = PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes,
50 (jlong)max_size, CHECK);
51
52 cname = PerfDataManager::counter_name(_name_space, "capacity");
53 _capacity = PerfDataManager::create_variable(SUN_GC, cname,
54 PerfData::U_Bytes,
55 _space->capacity(), CHECK);
56
57 cname = PerfDataManager::counter_name(_name_space, "used");
58 _used = PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes,
59 new ContiguousSpaceUsedHelper(_space),
60 CHECK);
61
62 cname = PerfDataManager::counter_name(_name_space, "initCapacity");
63 PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
64 _space->capacity(), CHECK);
65 }
66}
67
68CSpaceCounters::~CSpaceCounters() {
69 if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space);
70}
71
72void CSpaceCounters::update_capacity() {
73 _capacity->set_value(_space->capacity());
74}
75
76void CSpaceCounters::update_used() {
77 _used->set_value(_space->used());
78}
79
80void CSpaceCounters::update_all() {
81 update_used();
82 update_capacity();
83}
84
85jlong ContiguousSpaceUsedHelper::take_sample(){
86 return _space->used();
87}
88