1e1ef4f73f
Change parent of G1OffsetTableContigSpace to CompactibleSpace, reimplement missing functionality Reviewed-by: stefank, jmasa, tschatzl
108 lines
4.0 KiB
C++
108 lines
4.0 KiB
C++
/*
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* Copyright (c) 2011, 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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#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCREGION_INLINE_HPP
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#define SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCREGION_INLINE_HPP
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#include "gc_implementation/g1/g1AllocRegion.hpp"
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#include "gc_implementation/g1/heapRegion.inline.hpp"
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inline HeapWord* G1AllocRegion::allocate(HeapRegion* alloc_region,
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size_t word_size,
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bool bot_updates) {
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assert(alloc_region != NULL, err_msg("pre-condition"));
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if (!bot_updates) {
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return alloc_region->allocate_no_bot_updates(word_size);
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} else {
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return alloc_region->allocate(word_size);
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}
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}
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inline HeapWord* G1AllocRegion::par_allocate(HeapRegion* alloc_region,
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size_t word_size,
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bool bot_updates) {
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assert(alloc_region != NULL, err_msg("pre-condition"));
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assert(!alloc_region->is_empty(), err_msg("pre-condition"));
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if (!bot_updates) {
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return alloc_region->par_allocate_no_bot_updates(word_size);
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} else {
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return alloc_region->par_allocate(word_size);
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}
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}
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inline HeapWord* G1AllocRegion::attempt_allocation(size_t word_size,
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bool bot_updates) {
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assert(bot_updates == _bot_updates, ar_ext_msg(this, "pre-condition"));
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HeapRegion* alloc_region = _alloc_region;
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assert(alloc_region != NULL, ar_ext_msg(this, "not initialized properly"));
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HeapWord* result = par_allocate(alloc_region, word_size, bot_updates);
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if (result != NULL) {
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trace("alloc", word_size, result);
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return result;
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}
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trace("alloc failed", word_size);
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return NULL;
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}
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inline HeapWord* G1AllocRegion::attempt_allocation_locked(size_t word_size,
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bool bot_updates) {
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// First we have to redo the allocation, assuming we're holding the
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// appropriate lock, in case another thread changed the region while
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// we were waiting to get the lock.
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HeapWord* result = attempt_allocation(word_size, bot_updates);
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if (result != NULL) {
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return result;
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}
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retire(true /* fill_up */);
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result = new_alloc_region_and_allocate(word_size, false /* force */);
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if (result != NULL) {
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trace("alloc locked (second attempt)", word_size, result);
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return result;
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}
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trace("alloc locked failed", word_size);
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return NULL;
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}
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inline HeapWord* G1AllocRegion::attempt_allocation_force(size_t word_size,
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bool bot_updates) {
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assert(bot_updates == _bot_updates, ar_ext_msg(this, "pre-condition"));
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assert(_alloc_region != NULL, ar_ext_msg(this, "not initialized properly"));
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trace("forcing alloc");
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HeapWord* result = new_alloc_region_and_allocate(word_size, true /* force */);
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if (result != NULL) {
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trace("alloc forced", word_size, result);
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return result;
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}
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trace("alloc forced failed", word_size);
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return NULL;
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}
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#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCREGION_INLINE_HPP
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