zgu@7074: /*
zgu@7074:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
zgu@7074:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
zgu@7074:  *
zgu@7074:  * This code is free software; you can redistribute it and/or modify it
zgu@7074:  * under the terms of the GNU General Public License version 2 only, as
zgu@7074:  * published by the Free Software Foundation.
zgu@7074:  *
zgu@7074:  * This code is distributed in the hope that it will be useful, but WITHOUT
zgu@7074:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
zgu@7074:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
zgu@7074:  * version 2 for more details (a copy is included in the LICENSE file that
zgu@7074:  * accompanied this code).
zgu@7074:  *
zgu@7074:  * You should have received a copy of the GNU General Public License version
zgu@7074:  * 2 along with this work; if not, write to the Free Software Foundation,
zgu@7074:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
zgu@7074:  *
zgu@7074:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
zgu@7074:  * or visit www.oracle.com if you need additional information or have any
zgu@7074:  * questions.
zgu@7074:  *
zgu@7074:  */
zgu@7074: 
zgu@7074: #ifndef SHARE_VM_SERVICES_NMT_COMMON_HPP
zgu@7074: #define SHARE_VM_SERVICES_NMT_COMMON_HPP
zgu@7074: 
zgu@7074: #include "memory/allocation.hpp"
zgu@7074: #include "utilities/globalDefinitions.hpp"
zgu@7074: 
zgu@7074: #define CALC_OBJ_SIZE_IN_TYPE(obj, type) (align_size_up_(sizeof(obj), sizeof(type))/sizeof(type))
zgu@7074: 
zgu@7074: // Data type for memory counters
zgu@7074: #ifdef _LP64
zgu@7074:   typedef jlong    MemoryCounterType;
zgu@7074: #else
zgu@7074:   typedef jint     MemoryCounterType;
zgu@7074: #endif
zgu@7074: 
zgu@7074: // Native memory tracking level
zgu@7074: enum NMT_TrackingLevel {
zgu@7074:   NMT_unknown = 0xFF,
zgu@7074:   NMT_off     = 0x00,
zgu@7074:   NMT_minimal = 0x01,
zgu@7074:   NMT_summary = 0x02,
zgu@7074:   NMT_detail  = 0x03
zgu@7074: };
zgu@7074: 
zgu@7074: // Number of stack frames to capture. This is a
zgu@7074: // build time decision.
zgu@7074: const int NMT_TrackingStackDepth = 4;
zgu@7074: 
zgu@7074: class NativeCallStack;
zgu@7074: extern NativeCallStack emptyStack;
zgu@7074: 
zgu@7074: // A few common utilities for native memory tracking
zgu@7074: class NMTUtil : AllStatic {
zgu@7074:  public:
zgu@7074:   // Map memory type to index
zgu@7074:   static inline int flag_to_index(MEMFLAGS flag) {
zgu@7074:     return (flag & 0xff);
zgu@7074:   }
zgu@7074: 
zgu@7074:   // Map memory type to human readable name
zgu@7074:   static const char* flag_to_name(MEMFLAGS flag) {
zgu@7074:     return _memory_type_names[flag_to_index(flag)];
zgu@7074:   }
zgu@7074: 
zgu@7074:   // Map an index to memory type
zgu@7074:   static MEMFLAGS index_to_flag(int index) {
zgu@7074:     return (MEMFLAGS)index;
zgu@7074:   }
zgu@7074: 
zgu@7074:   // Memory size scale
zgu@7074:   static const char* scale_name(size_t scale);
zgu@7074:   static size_t scale_from_name(const char* scale);
zgu@7074: 
zgu@7074:   // Translate memory size in specified scale
zgu@7074:   static size_t amount_in_scale(size_t amount, size_t scale) {
zgu@7074:     return (amount + scale / 2) / scale;
zgu@7074:   }
zgu@7074:  private:
zgu@7074:   static const char* _memory_type_names[mt_number_of_types];
zgu@7074: };
zgu@7074: 
zgu@7074: 
zgu@7074: #endif