annotate src/share/vm/utilities/growableArray.cpp @ 6197:d2a62e0f25eb

6995781: Native Memory Tracking (Phase 1) 7151532: DCmd for hotspot native memory tracking Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd Reviewed-by: acorn, coleenp, fparain
author zgu
date Thu, 28 Jun 2012 17:03:16 -0400
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children b9a9ed0f8eeb
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1 /*
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "memory/resourceArea.hpp"
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27 #include "utilities/growableArray.hpp"
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28 #ifdef TARGET_OS_FAMILY_linux
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29 # include "thread_linux.inline.hpp"
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30 #endif
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31 #ifdef TARGET_OS_FAMILY_solaris
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32 # include "thread_solaris.inline.hpp"
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33 #endif
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34 #ifdef TARGET_OS_FAMILY_windows
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35 # include "thread_windows.inline.hpp"
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36 #endif
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37 #ifdef TARGET_OS_FAMILY_bsd
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38 # include "thread_bsd.inline.hpp"
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39 #endif
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40 #ifdef ASSERT
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41 void GenericGrowableArray::set_nesting() {
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42 if (on_stack()) {
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43 _nesting = Thread::current()->resource_area()->nesting();
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44 }
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45 }
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46
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47 void GenericGrowableArray::check_nesting() {
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48 // Check for insidious allocation bug: if a GrowableArray overflows, the
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49 // grown array must be allocated under the same ResourceMark as the original.
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50 // Otherwise, the _data array will be deallocated too early.
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51 if (on_stack() &&
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52 _nesting != Thread::current()->resource_area()->nesting()) {
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53 fatal("allocation bug: GrowableArray could grow within nested ResourceMark");
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54 }
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55 }
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56 #endif
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57
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58 void* GenericGrowableArray::raw_allocate(int elementSize) {
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59 assert(_max >= 0, "integer overflow");
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60 size_t byte_size = elementSize * (size_t) _max;
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61 if (on_stack()) {
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62 return (void*)resource_allocate_bytes(byte_size);
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63 } else if (on_C_heap()) {
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64 return (void*)AllocateHeap(byte_size, _memflags);
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65 } else {
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66 return _arena->Amalloc(byte_size);
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67 }
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68 }