Mercurial > hg > truffle
view src/share/vm/memory/freeBlockDictionary.hpp @ 14459:194e8b7fe9ca
8033168: PPC64: gcc 4.8 warning in output_c.cpp
Summary: fix warnings
Reviewed-by: kvn
author | goetz |
---|---|
date | Thu, 30 Jan 2014 14:30:01 +0100 |
parents | 685df3c6f84b |
children |
line wrap: on
line source
/* * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP #define SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP #include "memory/allocation.hpp" #include "runtime/mutex.hpp" #include "utilities/debug.hpp" #include "utilities/globalDefinitions.hpp" #include "utilities/ostream.hpp" // A FreeBlockDictionary is an abstract superclass that will allow // a number of alternative implementations in the future. template <class Chunk> class FreeBlockDictionary: public CHeapObj<mtGC> { public: enum Dither { atLeast, exactly, roughly }; enum DictionaryChoice { dictionaryBinaryTree = 0, dictionarySplayTree = 1, dictionarySkipList = 2 }; private: // This field is added and can be set to point to the // the Mutex used to synchronize access to the // dictionary so that assertion checking can be done. // For example it is set to point to _parDictionaryAllocLock. NOT_PRODUCT(Mutex* _lock;) public: virtual void remove_chunk(Chunk* fc) = 0; virtual Chunk* get_chunk(size_t size, Dither dither = atLeast) = 0; virtual void return_chunk(Chunk* chunk) = 0; virtual size_t total_chunk_size(debug_only(const Mutex* lock)) const = 0; virtual size_t max_chunk_size() const = 0; virtual size_t min_size() const = 0; // Reset the dictionary to the initial conditions for a single // block. virtual void reset(HeapWord* addr, size_t size) = 0; virtual void reset() = 0; virtual void dict_census_update(size_t size, bool split, bool birth) = 0; virtual bool coal_dict_over_populated(size_t size) = 0; virtual void begin_sweep_dict_census(double coalSurplusPercent, float inter_sweep_current, float inter_sweep_estimate, float intra__sweep_current) = 0; virtual void end_sweep_dict_census(double splitSurplusPercent) = 0; virtual Chunk* find_largest_dict() const = 0; // verify that the given chunk is in the dictionary. virtual bool verify_chunk_in_free_list(Chunk* tc) const = 0; // Sigma_{all_free_blocks} (block_size^2) virtual double sum_of_squared_block_sizes() const = 0; virtual Chunk* find_chunk_ends_at(HeapWord* target) const = 0; virtual void inc_total_size(size_t v) = 0; virtual void dec_total_size(size_t v) = 0; NOT_PRODUCT ( virtual size_t sum_dict_returned_bytes() = 0; virtual void initialize_dict_returned_bytes() = 0; virtual size_t total_count() = 0; ) virtual void report_statistics() const { gclog_or_tty->print("No statistics available"); } virtual void print_dict_census() const = 0; virtual void print_free_lists(outputStream* st) const = 0; virtual void verify() const = 0; Mutex* par_lock() const PRODUCT_RETURN0; void set_par_lock(Mutex* lock) PRODUCT_RETURN; void verify_par_locked() const PRODUCT_RETURN; }; #endif // SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP