138 lines
5.6 KiB
C++
138 lines
5.6 KiB
C++
/*
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* Copyright (c) 2011, 2015, 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_G1_G1ALLOCREGION_INLINE_HPP
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#define SHARE_VM_GC_G1_G1ALLOCREGION_INLINE_HPP
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#include "gc/g1/g1AllocRegion.hpp"
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#include "gc/g1/heapRegion.inline.hpp"
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#define assert_alloc_region(p, message) \
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do { \
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assert((p), "[%s] %s c: %u b: %s r: " PTR_FORMAT " u: " SIZE_FORMAT, \
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_name, (message), _count, BOOL_TO_STR(_bot_updates), \
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p2i(_alloc_region), _used_bytes_before); \
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} while (0)
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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, "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, size_t word_size, bool bot_updates) {
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size_t temp;
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return par_allocate(alloc_region, word_size, word_size, &temp, bot_updates);
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}
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inline HeapWord* G1AllocRegion::par_allocate(HeapRegion* alloc_region,
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size_t min_word_size,
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size_t desired_word_size,
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size_t* actual_word_size,
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bool bot_updates) {
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assert(alloc_region != NULL, "pre-condition");
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assert(!alloc_region->is_empty(), "pre-condition");
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if (!bot_updates) {
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return alloc_region->par_allocate_no_bot_updates(min_word_size, desired_word_size, actual_word_size);
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} else {
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return alloc_region->par_allocate(min_word_size, desired_word_size, actual_word_size);
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}
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}
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inline HeapWord* G1AllocRegion::attempt_allocation(size_t word_size, bool bot_updates) {
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size_t temp;
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return attempt_allocation(word_size, word_size, &temp, bot_updates);
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}
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inline HeapWord* G1AllocRegion::attempt_allocation(size_t min_word_size,
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size_t desired_word_size,
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size_t* actual_word_size,
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bool bot_updates) {
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assert_alloc_region(bot_updates == _bot_updates, "pre-condition");
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HeapRegion* alloc_region = _alloc_region;
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assert_alloc_region(alloc_region != NULL, "not initialized properly");
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HeapWord* result = par_allocate(alloc_region, min_word_size, desired_word_size, actual_word_size, bot_updates);
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if (result != NULL) {
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trace("alloc", min_word_size, desired_word_size, *actual_word_size, result);
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return result;
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}
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trace("alloc failed", min_word_size, desired_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, bool bot_updates) {
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size_t temp;
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return attempt_allocation_locked(word_size, word_size, &temp, bot_updates);
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}
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inline HeapWord* G1AllocRegion::attempt_allocation_locked(size_t min_word_size,
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size_t desired_word_size,
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size_t* actual_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(min_word_size, desired_word_size, actual_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(desired_word_size, false /* force */);
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if (result != NULL) {
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*actual_word_size = desired_word_size;
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trace("alloc locked (second attempt)", min_word_size, desired_word_size, *actual_word_size, result);
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return result;
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}
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trace("alloc locked failed", min_word_size, desired_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_alloc_region(bot_updates == _bot_updates, "pre-condition");
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assert_alloc_region(_alloc_region != NULL, "not initialized properly");
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trace("forcing alloc", word_size, word_size);
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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, word_size, word_size, result);
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return result;
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}
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trace("alloc forced failed", word_size, word_size);
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return NULL;
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}
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#endif // SHARE_VM_GC_G1_G1ALLOCREGION_INLINE_HPP
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