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1 /*
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2 * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24 # include "incls/_precompiled.incl"
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25 # include "incls/_growableArray.cpp.incl"
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26
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27 #ifdef ASSERT
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28 void GenericGrowableArray::set_nesting() {
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29 if (on_stack()) {
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30 _nesting = Thread::current()->resource_area()->nesting();
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31 }
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32 }
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33
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34 void GenericGrowableArray::check_nesting() {
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35 // Check for insidious allocation bug: if a GrowableArray overflows, the
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36 // grown array must be allocated under the same ResourceMark as the original.
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37 // Otherwise, the _data array will be deallocated too early.
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38 if (on_stack() &&
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39 _nesting != Thread::current()->resource_area()->nesting()) {
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40 fatal("allocation bug: GrowableArray could grow within nested ResourceMark");
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41 }
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42 }
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43 #endif
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44
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45 void* GenericGrowableArray::raw_allocate(int elementSize) {
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46 if (on_stack()) {
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47 return (void*)resource_allocate_bytes(elementSize * _max);
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48 } else if (on_C_heap()) {
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49 return (void*)AllocateHeap(elementSize * _max, "GrET in " __FILE__);
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50 } else {
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51 return _arena->Amalloc(elementSize * _max);
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52 }
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53 }
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