1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/services/nmtCommon.hpp Wed Aug 27 08:19:12 2014 -0400
1.3 @@ -0,0 +1,87 @@
1.4 +/*
1.5 + * Copyright (c) 2014, 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_NMT_COMMON_HPP
1.29 +#define SHARE_VM_SERVICES_NMT_COMMON_HPP
1.30 +
1.31 +#include "memory/allocation.hpp"
1.32 +#include "utilities/globalDefinitions.hpp"
1.33 +
1.34 +#define CALC_OBJ_SIZE_IN_TYPE(obj, type) (align_size_up_(sizeof(obj), sizeof(type))/sizeof(type))
1.35 +
1.36 +// Data type for memory counters
1.37 +#ifdef _LP64
1.38 + typedef jlong MemoryCounterType;
1.39 +#else
1.40 + typedef jint MemoryCounterType;
1.41 +#endif
1.42 +
1.43 +// Native memory tracking level
1.44 +enum NMT_TrackingLevel {
1.45 + NMT_unknown = 0xFF,
1.46 + NMT_off = 0x00,
1.47 + NMT_minimal = 0x01,
1.48 + NMT_summary = 0x02,
1.49 + NMT_detail = 0x03
1.50 +};
1.51 +
1.52 +// Number of stack frames to capture. This is a
1.53 +// build time decision.
1.54 +const int NMT_TrackingStackDepth = 4;
1.55 +
1.56 +class NativeCallStack;
1.57 +extern NativeCallStack emptyStack;
1.58 +
1.59 +// A few common utilities for native memory tracking
1.60 +class NMTUtil : AllStatic {
1.61 + public:
1.62 + // Map memory type to index
1.63 + static inline int flag_to_index(MEMFLAGS flag) {
1.64 + return (flag & 0xff);
1.65 + }
1.66 +
1.67 + // Map memory type to human readable name
1.68 + static const char* flag_to_name(MEMFLAGS flag) {
1.69 + return _memory_type_names[flag_to_index(flag)];
1.70 + }
1.71 +
1.72 + // Map an index to memory type
1.73 + static MEMFLAGS index_to_flag(int index) {
1.74 + return (MEMFLAGS)index;
1.75 + }
1.76 +
1.77 + // Memory size scale
1.78 + static const char* scale_name(size_t scale);
1.79 + static size_t scale_from_name(const char* scale);
1.80 +
1.81 + // Translate memory size in specified scale
1.82 + static size_t amount_in_scale(size_t amount, size_t scale) {
1.83 + return (amount + scale / 2) / scale;
1.84 + }
1.85 + private:
1.86 + static const char* _memory_type_names[mt_number_of_types];
1.87 +};
1.88 +
1.89 +
1.90 +#endif
