1 /* 2 * Copyright (c) 2001, 2010, 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 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSPERMGEN_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSPERMGEN_HPP 27 28 #include "gc_implementation/parallelScavenge/psOldGen.hpp" 29 30 class AdaptivePaddedAverage; 31 32 class PSPermGen : public PSOldGen { 33 friend class VMStructs; 34 protected: 35 AdaptivePaddedAverage* _avg_size; // Used for sizing 36 size_t _last_used; // Amount used at last GC, used for sizing 37 38 public: 39 // Initialize the generation. 40 PSPermGen(ReservedSpace rs, size_t alignment, size_t initial_byte_size, 41 size_t minimum_byte_size, size_t maximum_byte_size, 42 const char* gen_name, int level); 43 44 // Permanent Gen special allocation. Uses the OldGen allocation 45 // routines, which should not be directly called on this generation. 46 HeapWord* allocate_permanent(size_t word_size); 47 48 // Size calculation. 49 void compute_new_size(size_t used_before_collection); 50 51 // MarkSweep code 52 virtual void precompact(); 53 54 // Parallel old 55 virtual void move_and_update(ParCompactionManager* cm); 56 57 virtual const char* name() const { return "PSPermGen"; } 58 }; 59 60 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSPERMGEN_HPP