1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id: mmalloc.c,v 1.5 1998-01-24 17:22:06 Singular Exp $ */ |
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5 | |
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6 | /* |
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7 | * ABSTRACT: |
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8 | */ |
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9 | |
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10 | #define _POSIX_SOURCE 1 |
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11 | |
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12 | #include <string.h> |
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13 | #include <stdlib.h> |
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14 | #include <stdio.h> |
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15 | #include "mod2.h" |
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16 | #include "tok.h" |
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17 | #include "structs.h" |
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18 | #include "mmemory.h" |
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19 | #include "mmprivat.h" |
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20 | |
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21 | size_t mmSizeL( void* adr ) |
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22 | { |
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23 | if (adr!=NULL) |
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24 | { |
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25 | adr = (size_t*)adr-1; |
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26 | return *(size_t*)adr; |
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27 | } |
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28 | return 0; |
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29 | } |
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30 | |
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31 | #ifndef MDEBUG |
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32 | |
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33 | void * mmAlloc( size_t size ) |
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34 | { |
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35 | size_t thesize = size + sizeof( ADDRESS ); |
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36 | size_t * dummy = (size_t*)mmAllocBlock( thesize ); |
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37 | *dummy = thesize; |
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38 | return (void*)(dummy+1); |
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39 | } |
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40 | |
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41 | void mmFree( void* adr ) |
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42 | { |
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43 | if (adr!=NULL) |
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44 | { |
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45 | adr = (size_t*)adr-1; |
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46 | mmFreeBlock( adr, *(size_t*)adr ); |
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47 | } |
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48 | } |
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49 | |
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50 | void * mmRealloc( void* adr, size_t newsize ) |
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51 | { |
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52 | size_t *aadr=(size_t*)(adr)-1; |
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53 | size_t oldsize = *aadr; |
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54 | void* newadr = mmAlloc( newsize ); |
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55 | memcpy( newadr, adr, min(oldsize-sizeof(ADDRESS),newsize) ); |
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56 | mmFreeBlock( aadr,oldsize ); |
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57 | return newadr; |
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58 | } |
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59 | |
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60 | #else /* MDEBUG */ |
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61 | |
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62 | void * mmDBAlloc( size_t size, char* fname, int lineno ) |
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63 | { |
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64 | size_t thesize = size + sizeof( ADDRESS ); |
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65 | size_t * dummy = (size_t*)mmDBAllocBlock( thesize, fname, lineno ); |
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66 | *dummy = thesize; |
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67 | return (void*)(dummy+1); |
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68 | } |
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69 | |
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70 | void mmDBFree( void* adr, char* fname, int lineno ) |
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71 | { |
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72 | if (adr!=NULL) |
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73 | { |
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74 | adr = (size_t*)adr-1; |
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75 | mmDBFreeBlock( adr,*(size_t *)adr, fname, lineno ); |
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76 | } |
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77 | } |
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78 | |
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79 | void * mmDBRealloc( void* adr, size_t newsize, char* fname, int lineno ) |
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80 | { |
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81 | size_t *aadr=(size_t*)(adr)-1; |
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82 | size_t oldsize = *aadr; |
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83 | void* newadr = mmDBAlloc( newsize, fname, lineno ); |
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84 | memcpy( newadr, adr, min(oldsize-sizeof(ADDRESS), newsize) ); |
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85 | mmDBFreeBlock( aadr, oldsize, fname, lineno ); |
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86 | return newadr; |
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87 | } |
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88 | |
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89 | #endif /* MDEBUG */ |
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90 | |
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91 | #ifdef DO_DEEP_PROFILE |
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92 | void _memcpyW(void* p1, void* p2, long l) |
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93 | { |
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94 | long _i = l; |
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95 | long* _s1 = (long*) p1; |
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96 | const long* _s2 = (long*) p2; |
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97 | |
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98 | for (;;) |
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99 | { |
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100 | *_s1 = *_s2; |
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101 | _i--; |
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102 | if (_i == 0) break; |
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103 | _s1++; |
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104 | _s2++; |
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105 | } |
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106 | } |
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107 | #endif |
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108 | |
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