--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegionSet.inline.hpp Wed Jan 19 19:30:42 2011 -0500
@@ -0,0 +1,159 @@
+/*
+ * copyright (c) 2011, 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;
+ if (!hr->isHumongous()) {
+ _region_num += 1;
+ } else {
+ _region_num += calculate_region_num(hr);
+ }
+ _total_used_bytes += hr->used();
+}
+
+inline void HeapRegionSetBase::add_internal(HeapRegion* hr) {
+ hrl_assert_region_ok(this, hr, NULL);
+ assert(hr->next() == NULL, hrl_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, hrl_ext_msg(this, "pre-condition"));
+ _length -= 1;
+
+ size_t region_num_diff;
+ if (!hr->isHumongous()) {
+ region_num_diff = 1;
+ } else {
+ region_num_diff = calculate_region_num(hr);
+ }
+ assert(region_num_diff <= _region_num,
+ hrl_err_msg("[%s] region's region num: "SIZE_FORMAT" "
+ "should be <= region num: "SIZE_FORMAT,
+ name(), region_num_diff, _region_num));
+ _region_num -= region_num_diff;
+
+ size_t used_bytes = hr->used();
+ assert(used_bytes <= _total_used_bytes,
+ hrl_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) {
+ hrl_assert_region_ok(this, hr, this);
+ assert(hr->next() == NULL, hrl_ext_msg(this, "should already be unlinked"));
+
+ hr->set_containing_set(NULL);
+ update_for_removal(hr);
+}
+
+//////////////////// HeapRegionSet ////////////////////
+
+inline void HeapRegionSet::add(HeapRegion* hr) {
+ hrl_assert_mt_safety_ok(this);
+ // add_internal() will verify the region.
+ add_internal(hr);
+}
+
+inline void HeapRegionSet::remove(HeapRegion* hr) {
+ hrl_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.
+ hrl_assert_sets_match(this, proxy_set);
+ hrl_assert_region_ok(this, hr, this);
+
+ hr->set_containing_set(NULL);
+ proxy_set->update_for_addition(hr);
+}
+
+//////////////////// HeapRegionLinkedList ////////////////////
+
+inline void HeapRegionLinkedList::add_as_tail(HeapRegion* hr) {
+ hrl_assert_mt_safety_ok(this);
+ assert((length() == 0 && _head == NULL && _tail == NULL) ||
+ (length() > 0 && _head != NULL && _tail != NULL),
+ hrl_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() {
+ hrl_assert_mt_safety_ok(this);
+ assert(!is_empty(), hrl_ext_msg(this, "the list should not be empty"));
+ assert(length() > 0 && _head != NULL && _tail != NULL,
+ hrl_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() {
+ hrl_assert_mt_safety_ok(this);
+
+ if (!is_empty()) {
+ return remove_head();
+ } else {
+ return NULL;
+ }
+}
+
+#endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP