1 | /* emacs edit mode for this file is -*- C -*- */ |
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2 | /* $Id$ */ |
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3 | |
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4 | #define _POSIX_SOURCE 1 |
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5 | |
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6 | #include <config.h> |
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7 | |
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8 | #include <string.h> |
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9 | #include <stdlib.h> |
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10 | |
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11 | #include "memman.h" |
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12 | #include "mmprivate.h" |
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13 | |
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14 | size_t |
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15 | mmSizeL( void* adr ) |
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16 | { |
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17 | if (adr!=NULL) { |
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18 | |
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19 | adr = (size_t*)adr-1; |
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20 | return *(size_t*)adr; |
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21 | } |
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22 | return 0; |
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23 | } |
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24 | |
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25 | #ifndef MDEBUG |
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26 | |
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27 | void * |
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28 | mmAlloc( size_t size ) |
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29 | { |
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30 | size_t thesize = size + sizeof( void * ); |
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31 | size_t * dummy = (size_t*)mmAllocBlock( thesize ); |
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32 | *dummy = thesize; |
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33 | return (void*)(dummy+1); |
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34 | } |
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35 | |
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36 | void |
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37 | mmFree( void* adr ) |
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38 | { |
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39 | if (adr!=NULL) { |
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40 | adr = (size_t*)adr-1; |
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41 | mmFreeBlock( adr, *(size_t*)adr ); |
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42 | } |
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43 | } |
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44 | |
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45 | void * |
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46 | mmRealloc( void* adr, size_t newsize ) |
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47 | { |
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48 | size_t oldsize = *((size_t*)(adr)-1); |
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49 | void* newadr = mmAlloc( newsize ); |
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50 | memcpy( newadr, adr, (oldsize < newsize) ? oldsize : newsize ); |
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51 | mmFree( adr ); |
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52 | return newadr; |
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53 | } |
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54 | |
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55 | #else /* MDEBUG */ |
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56 | |
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57 | void * |
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58 | mmDBAlloc( size_t size, char* fname, int lineno ) |
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59 | { |
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60 | size_t thesize = size + sizeof( void * ); |
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61 | size_t * dummy = (size_t*)mmDBAllocBlock( thesize, fname, lineno ); |
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62 | *dummy = thesize; |
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63 | return (void*)(dummy+1); |
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64 | } |
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65 | |
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66 | void |
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67 | mmDBFree( void* adr, char* fname, int lineno ) |
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68 | { |
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69 | if (adr!=NULL) { |
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70 | size_t l; |
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71 | adr = (size_t*)adr-1; |
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72 | #ifdef __alpha__ |
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73 | l= (*(size_t*)((int)adr&(~7))); |
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74 | #else |
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75 | l= (*(size_t*)((int)adr&(~3))); |
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76 | #endif |
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77 | mmDBFreeBlock( adr,l, fname, lineno ); |
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78 | } |
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79 | } |
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80 | |
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81 | void * |
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82 | mmDBRealloc( void* adr, size_t newsize, char* fname, int lineno ) |
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83 | { |
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84 | size_t oldsize = *((size_t*)(adr)-1); |
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85 | void* newadr = mmDBAlloc( newsize, fname, lineno ); |
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86 | memcpy( newadr, adr, (oldsize < newsize) ? oldsize : newsize ); |
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87 | mmDBFree( adr, fname, lineno ); |
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88 | return newadr; |
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89 | } |
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90 | |
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91 | #endif /* MDEBUG */ |
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