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1 /* This Source Code Form is subject to the terms of the Mozilla Public |
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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4 |
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5 #ifndef CacheHashUtils__h__ |
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6 #define CacheHashUtils__h__ |
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7 |
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8 #include "nsISupports.h" |
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9 #include "mozilla/Types.h" |
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10 #include "prnetdb.h" |
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11 #include "nsPrintfCString.h" |
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12 |
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13 #define LOGSHA1(x) \ |
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14 PR_htonl((reinterpret_cast<const uint32_t *>(x))[0]), \ |
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15 PR_htonl((reinterpret_cast<const uint32_t *>(x))[1]), \ |
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16 PR_htonl((reinterpret_cast<const uint32_t *>(x))[2]), \ |
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17 PR_htonl((reinterpret_cast<const uint32_t *>(x))[3]), \ |
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18 PR_htonl((reinterpret_cast<const uint32_t *>(x))[4]) |
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19 |
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20 #define SHA1STRING(x) \ |
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21 (nsPrintfCString("%08x%08x%08x%08x%08x", LOGSHA1(x)).get()) |
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22 |
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23 namespace mozilla { |
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24 namespace net { |
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25 |
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26 class CacheHash : public nsISupports |
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27 { |
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28 public: |
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29 NS_DECL_THREADSAFE_ISUPPORTS |
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30 |
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31 typedef uint16_t Hash16_t; |
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32 typedef uint32_t Hash32_t; |
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33 |
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34 static Hash32_t Hash(const char* aData, uint32_t aSize, uint32_t aInitval=0); |
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35 static Hash16_t Hash16(const char* aData, uint32_t aSize, |
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36 uint32_t aInitval=0); |
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37 |
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38 CacheHash(uint32_t aInitval=0); |
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39 |
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40 void Update(const char *aData, uint32_t aLen); |
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41 Hash32_t GetHash(); |
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42 Hash16_t GetHash16(); |
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43 |
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44 private: |
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45 virtual ~CacheHash() {} |
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46 |
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47 void Feed(uint32_t aVal, uint8_t aLen = 4); |
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48 |
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49 uint32_t mA, mB, mC; |
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50 uint8_t mPos; |
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51 uint32_t mBuf; |
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52 uint8_t mBufPos; |
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53 uint32_t mLength; |
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54 bool mFinalized; |
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55 }; |
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56 |
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57 |
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58 } // net |
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59 } // mozilla |
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60 |
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61 #endif |