Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp@37f87013dfd8 (annotated)
src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp
Thu, 05 Jun 2008 15:57:56 -0700
- author
- ysr
- date
- Thu, 05 Jun 2008 15:57:56 -0700
- changeset 777
- 37f87013dfd8
- child 1907
- c18cbe5936b8
- permissions
- -rw-r--r--
6711316: Open source the Garbage-First garbage collector
Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
| ysr@777 | 1 | /* |
| ysr@777 | 2 | * Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved. |
| ysr@777 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| ysr@777 | 4 | * |
| ysr@777 | 5 | * This code is free software; you can redistribute it and/or modify it |
| ysr@777 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| ysr@777 | 7 | * published by the Free Software Foundation. |
| ysr@777 | 8 | * |
| ysr@777 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| ysr@777 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| ysr@777 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| ysr@777 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| ysr@777 | 13 | * accompanied this code). |
| ysr@777 | 14 | * |
| ysr@777 | 15 | * You should have received a copy of the GNU General Public License version |
| ysr@777 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| ysr@777 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| ysr@777 | 18 | * |
| ysr@777 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| ysr@777 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| ysr@777 | 21 | * have any questions. |
| ysr@777 | 22 | * |
| ysr@777 | 23 | */ |
| ysr@777 | 24 | |
| ysr@777 | 25 | inline HeapRegion* HeapRegionSeq::addr_to_region(const void* addr) { |
| ysr@777 | 26 | assert(_seq_bottom != NULL, "bad _seq_bottom in addr_to_region"); |
| ysr@777 | 27 | if ((char*) addr >= _seq_bottom) { |
| ysr@777 | 28 | size_t diff = (size_t) pointer_delta((HeapWord*) addr, |
| ysr@777 | 29 | (HeapWord*) _seq_bottom); |
| ysr@777 | 30 | int index = (int) (diff >> HeapRegion::LogOfHRGrainWords); |
| ysr@777 | 31 | assert(index >= 0, "invariant / paranoia"); |
| ysr@777 | 32 | if (index < _regions.length()) { |
| ysr@777 | 33 | HeapRegion* hr = _regions.at(index); |
| ysr@777 | 34 | assert(hr->is_in_reserved(addr), |
| ysr@777 | 35 | "addr_to_region is wrong..."); |
| ysr@777 | 36 | return hr; |
| ysr@777 | 37 | } |
| ysr@777 | 38 | } |
| ysr@777 | 39 | return NULL; |
| ysr@777 | 40 | } |
