| /* |
| * Copyright (c) 2015, 2017, 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_G1_G1ALLOCATOR_INLINE_HPP |
| #define SHARE_VM_GC_G1_G1ALLOCATOR_INLINE_HPP |
| |
| #include "gc/g1/g1Allocator.hpp" |
| #include "gc/g1/g1AllocRegion.inline.hpp" |
| #include "gc/shared/plab.inline.hpp" |
| |
| HeapWord* G1Allocator::attempt_allocation(size_t word_size, AllocationContext_t context) { |
| return mutator_alloc_region(context)->attempt_allocation(word_size, false /* bot_updates */); |
| } |
| |
| HeapWord* G1Allocator::attempt_allocation_locked(size_t word_size, AllocationContext_t context) { |
| HeapWord* result = mutator_alloc_region(context)->attempt_allocation_locked(word_size, false /* bot_updates */); |
| assert(result != NULL || mutator_alloc_region(context)->get() == NULL, |
| "Must not have a mutator alloc region if there is no memory, but is " PTR_FORMAT, p2i(mutator_alloc_region(context)->get())); |
| return result; |
| } |
| |
| HeapWord* G1Allocator::attempt_allocation_force(size_t word_size, AllocationContext_t context) { |
| return mutator_alloc_region(context)->attempt_allocation_force(word_size, false /* bot_updates */); |
| } |
| |
| inline HeapWord* G1PLABAllocator::plab_allocate(InCSetState dest, |
| size_t word_sz, |
| AllocationContext_t context) { |
| G1PLAB* buffer = alloc_buffer(dest, context); |
| if (_survivor_alignment_bytes == 0 || !dest.is_young()) { |
| return buffer->allocate(word_sz); |
| } else { |
| return buffer->allocate_aligned(word_sz, _survivor_alignment_bytes); |
| } |
| } |
| |
| // Create the maps which is used to identify archive objects. |
| inline void G1ArchiveAllocator::enable_archive_object_check() { |
| if (_archive_check_enabled) { |
| return; |
| } |
| |
| _archive_check_enabled = true; |
| size_t length = Universe::heap()->max_capacity(); |
| _closed_archive_region_map.initialize((HeapWord*)Universe::heap()->base(), |
| (HeapWord*)Universe::heap()->base() + length, |
| HeapRegion::GrainBytes); |
| _open_archive_region_map.initialize((HeapWord*)Universe::heap()->base(), |
| (HeapWord*)Universe::heap()->base() + length, |
| HeapRegion::GrainBytes); |
| } |
| |
| // Set the regions containing the specified address range as archive. |
| inline void G1ArchiveAllocator::set_range_archive(MemRegion range, bool open) { |
| assert(_archive_check_enabled, "archive range check not enabled"); |
| if (open) { |
| _open_archive_region_map.set_by_address(range, true); |
| } else { |
| _closed_archive_region_map.set_by_address(range, true); |
| } |
| } |
| |
| // Check if an object is in a closed archive region using the _archive_region_map. |
| inline bool G1ArchiveAllocator::in_closed_archive_range(oop object) { |
| // This is the out-of-line part of is_closed_archive_object test, done separately |
| // to avoid additional performance impact when the check is not enabled. |
| return _closed_archive_region_map.get_by_address((HeapWord*)object); |
| } |
| |
| inline bool G1ArchiveAllocator::in_open_archive_range(oop object) { |
| return _open_archive_region_map.get_by_address((HeapWord*)object); |
| } |
| |
| // Check if archive object checking is enabled, to avoid calling in_open/closed_archive_range |
| // unnecessarily. |
| inline bool G1ArchiveAllocator::archive_check_enabled() { |
| return _archive_check_enabled; |
| } |
| |
| inline bool G1ArchiveAllocator::is_closed_archive_object(oop object) { |
| return (archive_check_enabled() && in_closed_archive_range(object)); |
| } |
| |
| inline bool G1ArchiveAllocator::is_open_archive_object(oop object) { |
| return (archive_check_enabled() && in_open_archive_range(object)); |
| } |
| |
| inline bool G1ArchiveAllocator::is_archive_object(oop object) { |
| return (archive_check_enabled() && (in_closed_archive_range(object) || |
| in_open_archive_range(object))); |
| } |
| |
| #endif // SHARE_VM_GC_G1_G1ALLOCATOR_HPP |