/* * Copyright (c) 2015, 2020, 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.
*/
ZListIterator<ZMemory> iter(&_freelist); for (ZMemory* area; iter.next(&area);) { if (start < area->start()) {
ZMemory* const prev = _freelist.prev(area); if (prev != NULL && start == prev->end()) { if (end == area->start()) { // Merge with prev and current area
grow_from_back(prev, size + area->size());
_freelist.remove(area); delete area;
} else { // Merge with prev area
grow_from_back(prev, size);
}
} elseif (end == area->start()) { // Merge with current area
grow_from_front(area, size);
} else { // Insert new area before current area
assert(end < area->start(), "Areas must not overlap");
ZMemory* const new_area = create(start, size);
_freelist.insert_before(area, new_area);
}
// Done return;
}
}
// Insert last
ZMemory* const last = _freelist.last(); if (last != NULL && start == last->end()) { // Merge with last area
grow_from_back(last, size);
} else { // Insert new area last
ZMemory* const new_area = create(start, size);
_freelist.insert_last(new_area);
}
}
Messung V0.5
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