1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/g1/g1AllocRegion.inline.hpp Wed Mar 30 10:26:59 2011 -0400
1.3 @@ -0,0 +1,106 @@
1.4 +/*
1.5 + * Copyright (c) 2011, 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_G1ALLOCREGION_INLINE_HPP
1.29 +#define SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCREGION_INLINE_HPP
1.30 +
1.31 +#include "gc_implementation/g1/g1AllocRegion.hpp"
1.32 +
1.33 +inline HeapWord* G1AllocRegion::allocate(HeapRegion* alloc_region,
1.34 + size_t word_size,
1.35 + bool bot_updates) {
1.36 + assert(alloc_region != NULL, err_msg("pre-condition"));
1.37 +
1.38 + if (!bot_updates) {
1.39 + return alloc_region->allocate_no_bot_updates(word_size);
1.40 + } else {
1.41 + return alloc_region->allocate(word_size);
1.42 + }
1.43 +}
1.44 +
1.45 +inline HeapWord* G1AllocRegion::par_allocate(HeapRegion* alloc_region,
1.46 + size_t word_size,
1.47 + bool bot_updates) {
1.48 + assert(alloc_region != NULL, err_msg("pre-condition"));
1.49 + assert(!alloc_region->is_empty(), err_msg("pre-condition"));
1.50 +
1.51 + if (!bot_updates) {
1.52 + return alloc_region->par_allocate_no_bot_updates(word_size);
1.53 + } else {
1.54 + return alloc_region->par_allocate(word_size);
1.55 + }
1.56 +}
1.57 +
1.58 +inline HeapWord* G1AllocRegion::attempt_allocation(size_t word_size,
1.59 + bool bot_updates) {
1.60 + assert(bot_updates == _bot_updates, ar_ext_msg(this, "pre-condition"));
1.61 +
1.62 + HeapRegion* alloc_region = _alloc_region;
1.63 + assert(alloc_region != NULL, ar_ext_msg(this, "not initialized properly"));
1.64 +
1.65 + HeapWord* result = par_allocate(alloc_region, word_size, bot_updates);
1.66 + if (result != NULL) {
1.67 + trace("alloc", word_size, result);
1.68 + return result;
1.69 + }
1.70 + trace("alloc failed", word_size);
1.71 + return NULL;
1.72 +}
1.73 +
1.74 +inline HeapWord* G1AllocRegion::attempt_allocation_locked(size_t word_size,
1.75 + bool bot_updates) {
1.76 + // First we have to tedo the allocation, assuming we're holding the
1.77 + // appropriate lock, in case another thread changed the region while
1.78 + // we were waiting to get the lock.
1.79 + HeapWord* result = attempt_allocation(word_size, bot_updates);
1.80 + if (result != NULL) {
1.81 + return result;
1.82 + }
1.83 +
1.84 + retire(true /* fill_up */);
1.85 + result = new_alloc_region_and_allocate(word_size, false /* force */);
1.86 + if (result != NULL) {
1.87 + trace("alloc locked (second attempt)", word_size, result);
1.88 + return result;
1.89 + }
1.90 + trace("alloc locked failed", word_size);
1.91 + return NULL;
1.92 +}
1.93 +
1.94 +inline HeapWord* G1AllocRegion::attempt_allocation_force(size_t word_size,
1.95 + bool bot_updates) {
1.96 + assert(bot_updates == _bot_updates, ar_ext_msg(this, "pre-condition"));
1.97 + assert(_alloc_region != NULL, ar_ext_msg(this, "not initialized properly"));
1.98 +
1.99 + trace("forcing alloc");
1.100 + HeapWord* result = new_alloc_region_and_allocate(word_size, true /* force */);
1.101 + if (result != NULL) {
1.102 + trace("alloc forced", word_size, result);
1.103 + return result;
1.104 + }
1.105 + trace("alloc forced failed", word_size);
1.106 + return NULL;
1.107 +}
1.108 +
1.109 +#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCREGION_INLINE_HPP
