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1 | office | 1 | /** |
2 | * @file CHash_decl.h |
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3 | * @author Ambroz Bizjak <ambrop7@gmail.com> |
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4 | * |
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5 | * @section LICENSE |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions are met: |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * 2. Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * 3. Neither the name of the author nor the |
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15 | * names of its contributors may be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
30 | #include "CHash_header.h" |
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31 | |||
32 | typedef struct { |
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33 | CHashLink *buckets; |
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34 | size_t num_buckets; |
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35 | } CHash; |
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36 | |||
37 | typedef struct { |
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38 | CHashEntry *ptr; |
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39 | CHashLink link; |
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40 | } CHashRef; |
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41 | |||
42 | static CHashLink CHashNullLink (void); |
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43 | static CHashRef CHashNullRef (void); |
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44 | static int CHashIsNullLink (CHashLink link); |
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45 | static int CHashIsNullRef (CHashRef ref); |
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46 | static CHashRef CHashDerefMayNull (CHashArg arg, CHashLink link); |
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47 | static CHashRef CHashDerefNonNull (CHashArg arg, CHashLink link); |
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48 | |||
49 | static int CHash_Init (CHash *o, size_t num_buckets); |
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50 | static void CHash_Free (CHash *o); |
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51 | static int CHash_Insert (CHash *o, CHashArg arg, CHashRef entry, CHashRef *out_existing); |
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52 | static void CHash_InsertMulti (CHash *o, CHashArg arg, CHashRef entry); |
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53 | static void CHash_Remove (CHash *o, CHashArg arg, CHashRef entry); |
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54 | static CHashRef CHash_Lookup (const CHash *o, CHashArg arg, CHashKey key); |
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55 | static CHashRef CHash_GetNextEqual (const CHash *o, CHashArg arg, CHashRef entry); |
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56 | static int CHash_MultiplyBuckets (CHash *o, CHashArg arg, int exp); |
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57 | static void CHash_Verify (const CHash *o, CHashArg arg); |
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58 | |||
59 | #include "CHash_footer.h" |