1 /* 2 * Copyright (c) 2001, 2012, 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_G1_HEAPREGIONSEQ_INLINE_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP 27 28 #include "gc_implementation/g1/heapRegion.hpp" 29 #include "gc_implementation/g1/heapRegionSeq.hpp" 30 31 inline uintx HeapRegionSeq::addr_to_index_biased(HeapWord* addr) const { 32 assert(_heap_bottom <= addr && addr < _heap_end, 33 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT, 34 addr, _heap_bottom, _heap_end)); 35 uintx index = (uintx) addr >> _region_shift; 36 return index; 37 } 38 39 inline HeapRegion* HeapRegionSeq::addr_to_region_unsafe(HeapWord* addr) const { 40 assert(_heap_bottom <= addr && addr < _heap_end, 41 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT, 42 addr, _heap_bottom, _heap_end)); 43 uintx index_biased = addr_to_index_biased(addr); 44 HeapRegion* hr = _regions_biased[index_biased]; 45 assert(hr != NULL, "invariant"); 46 return hr; 47 } 48 49 inline HeapRegion* HeapRegionSeq::addr_to_region(HeapWord* addr) const { 50 if (addr != NULL && addr < _heap_end) { 51 assert(addr >= _heap_bottom, 52 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT, addr, _heap_bottom)); 53 return addr_to_region_unsafe(addr); 54 } 55 return NULL; 56 } 57 58 inline HeapRegion* HeapRegionSeq::at(uint index) const { 59 assert(index < length(), "pre-condition"); 60 HeapRegion* hr = _regions[index]; 61 assert(hr != NULL, "sanity"); 62 assert(hr->hrs_index() == index, "sanity"); 63 return hr; 64 } 65 66 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP