| /* |
| * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP |
| #define SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP |
| |
| #include "gc_implementation/g1/g1RemSet.hpp" |
| #include "gc_implementation/g1/heapRegion.hpp" |
| #include "gc_implementation/g1/heapRegionRemSet.hpp" |
| #include "oops/oop.inline.hpp" |
| |
| inline uint G1RemSet::n_workers() { |
| if (_g1->workers() != NULL) { |
| return _g1->workers()->total_workers(); |
| } else { |
| return 1; |
| } |
| } |
| |
| template <class T> |
| inline void G1RemSet::write_ref(HeapRegion* from, T* p) { |
| par_write_ref(from, p, 0); |
| } |
| |
| template <class T> |
| inline void G1RemSet::par_write_ref(HeapRegion* from, T* p, int tid) { |
| oop obj = oopDesc::load_decode_heap_oop(p); |
| if (obj == NULL) { |
| return; |
| } |
| |
| #ifdef ASSERT |
| // can't do because of races |
| // assert(obj == NULL || obj->is_oop(), "expected an oop"); |
| |
| // Do the safe subset of is_oop |
| #ifdef CHECK_UNHANDLED_OOPS |
| oopDesc* o = obj.obj(); |
| #else |
| oopDesc* o = obj; |
| #endif // CHECK_UNHANDLED_OOPS |
| assert((intptr_t)o % MinObjAlignmentInBytes == 0, "not oop aligned"); |
| assert(Universe::heap()->is_in_reserved(obj), "must be in heap"); |
| #endif // ASSERT |
| |
| assert(from == NULL || from->is_in_reserved(p), "p is not in from"); |
| |
| HeapRegion* to = _g1->heap_region_containing(obj); |
| if (from != to) { |
| assert(to->rem_set() != NULL, "Need per-region 'into' remsets."); |
| to->rem_set()->add_reference(p, tid); |
| } |
| } |
| |
| template <class T> |
| inline void UpdateRSOopClosure::do_oop_work(T* p) { |
| assert(_from != NULL, "from region must be non-NULL"); |
| _rs->par_write_ref(_from, p, _worker_i); |
| } |
| |
| #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP |