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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
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2 * |
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3 * This Source Code Form is subject to the terms of the Mozilla Public |
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4 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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6 |
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7 #ifndef _nsCacheMetaData_h_ |
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8 #define _nsCacheMetaData_h_ |
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9 |
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10 #include "nspr.h" |
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11 #include "nscore.h" |
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12 |
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13 class nsICacheMetaDataVisitor; |
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14 |
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15 class nsCacheMetaData { |
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16 public: |
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17 nsCacheMetaData() : mBuffer(nullptr), mBufferSize(0), mMetaSize(0) { } |
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18 |
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19 ~nsCacheMetaData() { |
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20 mBufferSize = mMetaSize = 0; |
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21 moz_free(mBuffer); |
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22 mBuffer = nullptr; |
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23 } |
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24 |
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25 const char * GetElement(const char * key); |
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26 |
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27 nsresult SetElement(const char * key, const char * value); |
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28 |
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29 uint32_t Size(void) { return mMetaSize; } |
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30 |
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31 nsresult FlattenMetaData(char * buffer, uint32_t bufSize); |
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32 |
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33 nsresult UnflattenMetaData(const char * buffer, uint32_t bufSize); |
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34 |
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35 nsresult VisitElements(nsICacheMetaDataVisitor * visitor); |
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36 |
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37 private: |
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38 nsresult EnsureBuffer(uint32_t size); |
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39 |
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40 char * mBuffer; |
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41 uint32_t mBufferSize; |
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42 uint32_t mMetaSize; |
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43 }; |
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44 |
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45 #endif // _nsCacheMetaData_h |