1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/g1/g1RemSet.inline.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,88 @@
1.4 +/*
1.5 + * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP
1.29 +#define SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP
1.30 +
1.31 +#include "gc_implementation/g1/g1RemSet.hpp"
1.32 +#include "gc_implementation/g1/heapRegionRemSet.hpp"
1.33 +#include "oops/oop.inline.hpp"
1.34 +
1.35 +inline uint G1RemSet::n_workers() {
1.36 + if (_g1->workers() != NULL) {
1.37 + return _g1->workers()->total_workers();
1.38 + } else {
1.39 + return 1;
1.40 + }
1.41 +}
1.42 +
1.43 +template <class T>
1.44 +inline void G1RemSet::write_ref(HeapRegion* from, T* p) {
1.45 + par_write_ref(from, p, 0);
1.46 +}
1.47 +
1.48 +template <class T>
1.49 +inline void G1RemSet::par_write_ref(HeapRegion* from, T* p, int tid) {
1.50 + oop obj = oopDesc::load_decode_heap_oop(p);
1.51 +#ifdef ASSERT
1.52 + // can't do because of races
1.53 + // assert(obj == NULL || obj->is_oop(), "expected an oop");
1.54 +
1.55 + // Do the safe subset of is_oop
1.56 + if (obj != NULL) {
1.57 +#ifdef CHECK_UNHANDLED_OOPS
1.58 + oopDesc* o = obj.obj();
1.59 +#else
1.60 + oopDesc* o = obj;
1.61 +#endif // CHECK_UNHANDLED_OOPS
1.62 + assert((intptr_t)o % MinObjAlignmentInBytes == 0, "not oop aligned");
1.63 + assert(Universe::heap()->is_in_reserved(obj), "must be in heap");
1.64 + }
1.65 +#endif // ASSERT
1.66 +
1.67 + assert(from == NULL || from->is_in_reserved(p), "p is not in from");
1.68 +
1.69 + HeapRegion* to = _g1->heap_region_containing(obj);
1.70 + if (to != NULL && from != to) {
1.71 + assert(to->rem_set() != NULL, "Need per-region 'into' remsets.");
1.72 + to->rem_set()->add_reference(p, tid);
1.73 + }
1.74 +}
1.75 +
1.76 +template <class T>
1.77 +inline void UpdateRSOopClosure::do_oop_work(T* p) {
1.78 + assert(_from != NULL, "from region must be non-NULL");
1.79 + _rs->par_write_ref(_from, p, _worker_i);
1.80 +}
1.81 +
1.82 +template <class T>
1.83 +inline void UpdateRSetImmediate::do_oop_work(T* p) {
1.84 + assert(_from->is_in_reserved(p), "paranoia");
1.85 + T heap_oop = oopDesc::load_heap_oop(p);
1.86 + if (!oopDesc::is_null(heap_oop) && !_from->is_survivor()) {
1.87 + _g1_rem_set->par_write_ref(_from, p, 0);
1.88 + }
1.89 +}
1.90 +
1.91 +#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP
