Wed, 03 Jul 2019 20:42:37 +0800
Merge
1 /*
2 * Copyright (c) 2014, 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 */
25 #ifndef SHARE_VM_SERVICES_NMT_COMMON_HPP
26 #define SHARE_VM_SERVICES_NMT_COMMON_HPP
28 #include "memory/allocation.hpp"
29 #include "utilities/globalDefinitions.hpp"
31 #define CALC_OBJ_SIZE_IN_TYPE(obj, type) (align_size_up_(sizeof(obj), sizeof(type))/sizeof(type))
33 // Data type for memory counters
34 #ifdef _LP64
35 typedef jlong MemoryCounterType;
36 #else
37 typedef jint MemoryCounterType;
38 #endif
40 // Native memory tracking level
41 enum NMT_TrackingLevel {
42 NMT_unknown = 0xFF,
43 NMT_off = 0x00,
44 NMT_minimal = 0x01,
45 NMT_summary = 0x02,
46 NMT_detail = 0x03
47 };
49 // Number of stack frames to capture. This is a
50 // build time decision.
51 const int NMT_TrackingStackDepth = 4;
53 // A few common utilities for native memory tracking
54 class NMTUtil : AllStatic {
55 public:
56 // Map memory type to index
57 static inline int flag_to_index(MEMFLAGS flag) {
58 return (flag & 0xff);
59 }
61 // Map memory type to human readable name
62 static const char* flag_to_name(MEMFLAGS flag) {
63 return _memory_type_names[flag_to_index(flag)];
64 }
66 // Map an index to memory type
67 static MEMFLAGS index_to_flag(int index) {
68 return (MEMFLAGS)index;
69 }
71 // Memory size scale
72 static const char* scale_name(size_t scale);
73 static size_t scale_from_name(const char* scale);
75 // Translate memory size in specified scale
76 static size_t amount_in_scale(size_t amount, size_t scale) {
77 return (amount + scale / 2) / scale;
78 }
79 private:
80 static const char* _memory_type_names[mt_number_of_types];
81 };
84 #endif