hotspot/src/share/vm/gc_implementation/g1/heapRegion.inline.hpp
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6941466: Oracle rebranding changes for Hotspot repositories Summary: Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
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/*
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 * Copyright (c) 2001, 2007, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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inline HeapWord* G1OffsetTableContigSpace::allocate(size_t size) {
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  HeapWord* res = ContiguousSpace::allocate(size);
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  if (res != NULL) {
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    _offsets.alloc_block(res, size);
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  }
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  return res;
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}
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// Because of the requirement of keeping "_offsets" up to date with the
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// allocations, we sequentialize these with a lock.  Therefore, best if
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// this is used for larger LAB allocations only.
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inline HeapWord* G1OffsetTableContigSpace::par_allocate(size_t size) {
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  MutexLocker x(&_par_alloc_lock);
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  // This ought to be just "allocate", because of the lock above, but that
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  // ContiguousSpace::allocate asserts that either the allocating thread
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  // holds the heap lock or it is the VM thread and we're at a safepoint.
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  // The best I (dld) could figure was to put a field in ContiguousSpace
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  // meaning "locking at safepoint taken care of", and set/reset that
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  // here.  But this will do for now, especially in light of the comment
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  // above.  Perhaps in the future some lock-free manner of keeping the
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  // coordination.
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  HeapWord* res = ContiguousSpace::par_allocate(size);
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  if (res != NULL) {
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    _offsets.alloc_block(res, size);
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  }
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  return res;
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}
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inline HeapWord* G1OffsetTableContigSpace::block_start(const void* p) {
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  return _offsets.block_start(p);
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}
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inline HeapWord*
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G1OffsetTableContigSpace::block_start_const(const void* p) const {
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  return _offsets.block_start_const(p);
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}