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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 } |