Thu, 21 Aug 2014 16:44:41 +0200
8055098: WB API should be extended to provide information about size and age of object.
Summary: Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC.
Reviewed-by: tschatzl, sjohanss
Contributed-by: Leonid Mesnik <leonid.mesnik@oracle.com>
ysr@777 | 1 | /* |
drchase@6680 | 2 | * Copyright (c) 2001, 2014, Oracle and/or its affiliates. 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 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
ysr@777 | 22 | * |
ysr@777 | 23 | */ |
ysr@777 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
stefank@2314 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
stefank@2314 | 27 | |
tonyp@2963 | 28 | #include "gc_implementation/g1/heapRegion.hpp" |
stefank@2314 | 29 | #include "gc_implementation/g1/heapRegionSeq.hpp" |
tschatzl@7051 | 30 | #include "gc_implementation/g1/heapRegionSet.inline.hpp" |
stefank@2314 | 31 | |
brutisso@7049 | 32 | inline HeapRegion* HeapRegionSeq::addr_to_region(HeapWord* addr) const { |
brutisso@7049 | 33 | assert(addr < heap_end(), |
brutisso@7049 | 34 | err_msg("addr: "PTR_FORMAT" end: "PTR_FORMAT, p2i(addr), p2i(heap_end()))); |
brutisso@7049 | 35 | assert(addr >= heap_bottom(), |
brutisso@7049 | 36 | err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT, p2i(addr), p2i(heap_bottom()))); |
brutisso@7049 | 37 | |
tschatzl@5773 | 38 | HeapRegion* hr = _regions.get_by_address(addr); |
tonyp@2963 | 39 | return hr; |
tonyp@2963 | 40 | } |
tonyp@2963 | 41 | |
tonyp@3713 | 42 | inline HeapRegion* HeapRegionSeq::at(uint index) const { |
tschatzl@7050 | 43 | assert(is_available(index), "pre-condition"); |
tschatzl@5773 | 44 | HeapRegion* hr = _regions.get_by_index(index); |
tonyp@2963 | 45 | assert(hr != NULL, "sanity"); |
tonyp@2963 | 46 | assert(hr->hrs_index() == index, "sanity"); |
tonyp@2963 | 47 | return hr; |
tonyp@2963 | 48 | } |
tonyp@2963 | 49 | |
tschatzl@7050 | 50 | inline void HeapRegionSeq::insert_into_free_list(HeapRegion* hr) { |
tschatzl@7050 | 51 | _free_list.add_ordered(hr); |
tschatzl@7050 | 52 | } |
tschatzl@7050 | 53 | |
tschatzl@7050 | 54 | inline void HeapRegionSeq::allocate_free_regions_starting_at(uint first, uint num_regions) { |
tschatzl@7050 | 55 | _free_list.remove_starting_at(at(first), num_regions); |
tschatzl@7050 | 56 | } |
tschatzl@7050 | 57 | |
stefank@2314 | 58 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |