author | jwilhelm |
Wed, 14 Feb 2018 13:29:45 +0100 | |
changeset 48969 | 7eb296a8ce2c |
parent 48963 | 7e09b699f7b6 |
child 49323 | 565336327354 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2017, 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_G1ALLOCATOR_INLINE_HPP |
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#define SHARE_VM_GC_G1_G1ALLOCATOR_INLINE_HPP |
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#include "gc/g1/g1Allocator.hpp" |
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#include "gc/g1/g1AllocRegion.inline.hpp" |
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#include "gc/shared/plab.inline.hpp" |
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HeapWord* G1Allocator::attempt_allocation(size_t word_size, AllocationContext_t context) { |
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return mutator_alloc_region(context)->attempt_allocation(word_size); |
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} |
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HeapWord* G1Allocator::attempt_allocation_locked(size_t word_size, AllocationContext_t context) { |
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HeapWord* result = mutator_alloc_region(context)->attempt_allocation_locked(word_size); |
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assert(result != NULL || mutator_alloc_region(context)->get() == NULL, |
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"Must not have a mutator alloc region if there is no memory, but is " PTR_FORMAT, p2i(mutator_alloc_region(context)->get())); |
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return result; |
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} |
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HeapWord* G1Allocator::attempt_allocation_force(size_t word_size, AllocationContext_t context) { |
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return mutator_alloc_region(context)->attempt_allocation_force(word_size); |
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} |
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inline HeapWord* G1PLABAllocator::plab_allocate(InCSetState dest, |
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size_t word_sz, |
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AllocationContext_t context) { |
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PLAB* buffer = alloc_buffer(dest, context); |
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if (_survivor_alignment_bytes == 0 || !dest.is_young()) { |
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return buffer->allocate(word_sz); |
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} else { |
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return buffer->allocate_aligned(word_sz, _survivor_alignment_bytes); |
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} |
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} |
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|
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// Create the maps which is used to identify archive objects. |
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inline void G1ArchiveAllocator::enable_archive_object_check() { |
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if (_archive_check_enabled) { |
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return; |
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} |
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|
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_archive_check_enabled = true; |
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size_t length = Universe::heap()->max_capacity(); |
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_closed_archive_region_map.initialize((HeapWord*)Universe::heap()->base(), |
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(HeapWord*)Universe::heap()->base() + length, |
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HeapRegion::GrainBytes); |
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_open_archive_region_map.initialize((HeapWord*)Universe::heap()->base(), |
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(HeapWord*)Universe::heap()->base() + length, |
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HeapRegion::GrainBytes); |
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} |
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// Set the regions containing the specified address range as archive. |
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inline void G1ArchiveAllocator::set_range_archive(MemRegion range, bool open) { |
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assert(_archive_check_enabled, "archive range check not enabled"); |
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if (open) { |
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_open_archive_region_map.set_by_address(range, true); |
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} else { |
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_closed_archive_region_map.set_by_address(range, true); |
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} |
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} |
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// Check if an object is in a closed archive region using the _archive_region_map. |
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inline bool G1ArchiveAllocator::in_closed_archive_range(oop object) { |
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// This is the out-of-line part of is_closed_archive_object test, done separately |
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// to avoid additional performance impact when the check is not enabled. |
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return _closed_archive_region_map.get_by_address((HeapWord*)object); |
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} |
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inline bool G1ArchiveAllocator::in_open_archive_range(oop object) { |
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return _open_archive_region_map.get_by_address((HeapWord*)object); |
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} |
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// Check if archive object checking is enabled, to avoid calling in_open/closed_archive_range |
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// unnecessarily. |
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inline bool G1ArchiveAllocator::archive_check_enabled() { |
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return _archive_check_enabled; |
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} |
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inline bool G1ArchiveAllocator::is_closed_archive_object(oop object) { |
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return (archive_check_enabled() && in_closed_archive_range(object)); |
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} |
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inline bool G1ArchiveAllocator::is_open_archive_object(oop object) { |
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return (archive_check_enabled() && in_open_archive_range(object)); |
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} |
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inline bool G1ArchiveAllocator::is_archive_object(oop object) { |
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return (archive_check_enabled() && (in_closed_archive_range(object) || |
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in_open_archive_range(object))); |
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} |
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49a57ff2c3cb
8073052: Rename and clean up the allocation manager hierarchy in g1Allocator.?pp
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#endif // SHARE_VM_GC_G1_G1ALLOCATOR_HPP |