annotate src/share/vm/utilities/array.cpp @ 6842:b9a9ed0f8eeb

7197424: update copyright year to match last edit in jdk8 hotspot repository Summary: Update copyright year to 2012 for relevant files Reviewed-by: dholmes, coleenp
author mikael
date Tue, 09 Oct 2012 10:09:34 -0700
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1 /*
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2 * Copyright (c) 2000, 2012, 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/array.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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42 #ifdef ASSERT
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43 void ResourceArray::init_nesting() {
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44 _nesting = Thread::current()->resource_area()->nesting();
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45 }
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46 #endif
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47
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48
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49 void ResourceArray::sort(size_t esize, ftype f) {
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50 if (!is_empty()) qsort(_data, length(), esize, f);
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51 }
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52 template <MEMFLAGS F> void CHeapArray<F>::sort(size_t esize, ftype f) {
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53 if (!is_empty()) qsort(_data, length(), esize, f);
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54 }
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55
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56
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57 void ResourceArray::expand(size_t esize, int i, int& size) {
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58 // make sure we are expanding within the original resource mark
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59 assert(
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60 _nesting == Thread::current()->resource_area()->nesting(),
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61 "allocating outside original resource mark"
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62 );
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63 // determine new size
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64 if (size == 0) size = 4; // prevent endless loop
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65 while (i >= size) size *= 2;
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66 // allocate and initialize new data section
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67 void* data = resource_allocate_bytes(esize * size);
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68 memcpy(data, _data, esize * length());
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69 _data = data;
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70 }
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71
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72
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73 template <MEMFLAGS F> void CHeapArray<F>::expand(size_t esize, int i, int& size) {
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74 // determine new size
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75 if (size == 0) size = 4; // prevent endless loop
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76 while (i >= size) size *= 2;
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77 // allocate and initialize new data section
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78 void* data = NEW_C_HEAP_ARRAY(char*, esize * size, F);
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79 memcpy(data, _data, esize * length());
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80 FREE_C_HEAP_ARRAY(char*, _data, F);
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81 _data = data;
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82 }
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85 void ResourceArray::remove_at(size_t esize, int i) {
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86 assert(0 <= i && i < length(), "index out of bounds");
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87 _length--;
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88 void* dst = (char*)_data + i*esize;
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89 void* src = (char*)dst + esize;
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90 size_t cnt = (length() - i)*esize;
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91 memmove(dst, src, cnt);
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92 }
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93
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94 template <MEMFLAGS F> void CHeapArray<F>::remove_at(size_t esize, int i) {
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95 assert(0 <= i && i < length(), "index out of bounds");
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96 _length--;
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97 void* dst = (char*)_data + i*esize;
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98 void* src = (char*)dst + esize;
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99 size_t cnt = (length() - i)*esize;
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100 memmove(dst, src, cnt);
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101 }