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1 /* |
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2 * Copyright (c) 2015, 2019, 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 #include "ByteBuffer.h" |
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27 |
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28 #include <stdio.h> |
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29 |
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30 ByteBuffer::ByteBuffer() { |
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31 buffer.reserve(1024); |
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32 } |
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33 |
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34 ByteBuffer::~ByteBuffer() { |
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35 } |
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36 |
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37 LPBYTE ByteBuffer::getPtr() { |
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38 return &buffer[0]; |
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39 } |
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40 |
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41 size_t ByteBuffer::getPos() { |
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42 return buffer.size(); |
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43 } |
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44 |
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45 void ByteBuffer::AppendString(wstring str) { |
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46 size_t len = (str.size() + 1) * sizeof (WCHAR); |
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47 AppendBytes((BYTE*) str.c_str(), len); |
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48 } |
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49 |
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50 void ByteBuffer::AppendWORD(WORD word) { |
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51 AppendBytes((BYTE*) & word, sizeof (WORD)); |
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52 } |
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53 |
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54 void ByteBuffer::Align(size_t bytesNumber) { |
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55 size_t pos = getPos(); |
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56 if (pos % bytesNumber) { |
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57 DWORD dwNull = 0; |
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58 size_t len = bytesNumber - pos % bytesNumber; |
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59 AppendBytes((BYTE*) & dwNull, len); |
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60 } |
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61 } |
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62 |
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63 void ByteBuffer::AppendBytes(BYTE* ptr, size_t len) { |
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64 buffer.insert(buffer.end(), ptr, ptr + len); |
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65 } |
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66 |
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67 void ByteBuffer::ReplaceWORD(size_t offset, WORD word) { |
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68 ReplaceBytes(offset, (BYTE*) & word, sizeof (WORD)); |
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69 } |
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70 |
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71 void ByteBuffer::ReplaceBytes(size_t offset, BYTE* ptr, size_t len) { |
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72 for (size_t i = 0; i < len; i++) { |
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73 buffer[offset + i] = *(ptr + i); |
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74 } |
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75 } |