| /* |
| * Copyright (c) 2011, 2012, 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_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP |
| #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP |
| |
| #include "gc_implementation/g1/heapRegionSet.hpp" |
| |
| //////////////////// HeapRegionSetBase //////////////////// |
| |
| inline void HeapRegionSetBase::update_for_addition(HeapRegion* hr) { |
| // Assumes the caller has already verified the region. |
| |
| _length += 1; |
| _region_num += hr->region_num(); |
| _total_used_bytes += hr->used(); |
| } |
| |
| inline void HeapRegionSetBase::add_internal(HeapRegion* hr) { |
| hrs_assert_region_ok(this, hr, NULL); |
| assert(hr->next() == NULL, hrs_ext_msg(this, "should not already be linked")); |
| |
| update_for_addition(hr); |
| hr->set_containing_set(this); |
| } |
| |
| inline void HeapRegionSetBase::update_for_removal(HeapRegion* hr) { |
| // Assumes the caller has already verified the region. |
| assert(_length > 0, hrs_ext_msg(this, "pre-condition")); |
| _length -= 1; |
| |
| uint region_num_diff = hr->region_num(); |
| assert(region_num_diff <= _region_num, |
| hrs_err_msg("[%s] region's region num: %u " |
| "should be <= region num: %u", |
| name(), region_num_diff, _region_num)); |
| _region_num -= region_num_diff; |
| |
| size_t used_bytes = hr->used(); |
| assert(used_bytes <= _total_used_bytes, |
| hrs_err_msg("[%s] region's used bytes: "SIZE_FORMAT" " |
| "should be <= used bytes: "SIZE_FORMAT, |
| name(), used_bytes, _total_used_bytes)); |
| _total_used_bytes -= used_bytes; |
| } |
| |
| inline void HeapRegionSetBase::remove_internal(HeapRegion* hr) { |
| hrs_assert_region_ok(this, hr, this); |
| assert(hr->next() == NULL, hrs_ext_msg(this, "should already be unlinked")); |
| |
| hr->set_containing_set(NULL); |
| update_for_removal(hr); |
| } |
| |
| //////////////////// HeapRegionSet //////////////////// |
| |
| inline void HeapRegionSet::add(HeapRegion* hr) { |
| hrs_assert_mt_safety_ok(this); |
| // add_internal() will verify the region. |
| add_internal(hr); |
| } |
| |
| inline void HeapRegionSet::remove(HeapRegion* hr) { |
| hrs_assert_mt_safety_ok(this); |
| // remove_internal() will verify the region. |
| remove_internal(hr); |
| } |
| |
| inline void HeapRegionSet::remove_with_proxy(HeapRegion* hr, |
| HeapRegionSet* proxy_set) { |
| // No need to fo the MT safety check here given that this method |
| // does not update the contents of the set but instead accumulates |
| // the changes in proxy_set which is assumed to be thread-local. |
| hrs_assert_sets_match(this, proxy_set); |
| hrs_assert_region_ok(this, hr, this); |
| |
| hr->set_containing_set(NULL); |
| proxy_set->update_for_addition(hr); |
| } |
| |
| //////////////////// HeapRegionLinkedList //////////////////// |
| |
| inline void HeapRegionLinkedList::add_as_head(HeapRegion* hr) { |
| hrs_assert_mt_safety_ok(this); |
| assert((length() == 0 && _head == NULL && _tail == NULL) || |
| (length() > 0 && _head != NULL && _tail != NULL), |
| hrs_ext_msg(this, "invariant")); |
| // add_internal() will verify the region. |
| add_internal(hr); |
| |
| // Now link the region. |
| if (_head != NULL) { |
| hr->set_next(_head); |
| } else { |
| _tail = hr; |
| } |
| _head = hr; |
| } |
| |
| inline void HeapRegionLinkedList::add_as_tail(HeapRegion* hr) { |
| hrs_assert_mt_safety_ok(this); |
| assert((length() == 0 && _head == NULL && _tail == NULL) || |
| (length() > 0 && _head != NULL && _tail != NULL), |
| hrs_ext_msg(this, "invariant")); |
| // add_internal() will verify the region. |
| add_internal(hr); |
| |
| // Now link the region. |
| if (_tail != NULL) { |
| _tail->set_next(hr); |
| } else { |
| _head = hr; |
| } |
| _tail = hr; |
| } |
| |
| inline HeapRegion* HeapRegionLinkedList::remove_head() { |
| hrs_assert_mt_safety_ok(this); |
| assert(!is_empty(), hrs_ext_msg(this, "the list should not be empty")); |
| assert(length() > 0 && _head != NULL && _tail != NULL, |
| hrs_ext_msg(this, "invariant")); |
| |
| // We need to unlink it first. |
| HeapRegion* hr = _head; |
| _head = hr->next(); |
| if (_head == NULL) { |
| _tail = NULL; |
| } |
| hr->set_next(NULL); |
| |
| // remove_internal() will verify the region. |
| remove_internal(hr); |
| return hr; |
| } |
| |
| inline HeapRegion* HeapRegionLinkedList::remove_head_or_null() { |
| hrs_assert_mt_safety_ok(this); |
| |
| if (!is_empty()) { |
| return remove_head(); |
| } else { |
| return NULL; |
| } |
| } |
| |
| #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP |