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 <stdio.h> |
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10 | #include <stdlib.h> |
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11 | |
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12 | #include "memman.h" |
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13 | #include "mmprivate.h" |
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14 | |
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15 | #ifndef MDEBUG |
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16 | |
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17 | void * |
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18 | mmAllocBlock( size_t size ) |
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19 | { |
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20 | int i = mmGetIndex( size ); |
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21 | mcb result; |
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22 | |
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23 | if ( i < 0 ) { |
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24 | #ifdef MM_COUNT |
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25 | mm_bytesUsed += size; |
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26 | #endif |
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27 | mm_bytesReal += size; |
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28 | return (void*)malloc( size ); |
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29 | } |
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30 | else { |
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31 | size = mmGetSize( i ); |
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32 | #ifdef MM_COUNT |
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33 | mm_bytesUsed += size; /*mmGetSize( i );*/ |
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34 | #endif |
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35 | if ( ( result = mm_theList[i] ) == NULL ) { |
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36 | return (void*)mmGetMemory( size ); |
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37 | } |
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38 | else { |
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39 | mm_theList[i] = (mcb)*result; |
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40 | return result; |
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41 | } |
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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 | mmAllocBlock0( size_t size ) |
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47 | { |
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48 | int i = mmGetIndex( size ); |
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49 | mcb result; |
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50 | |
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51 | if ( i < 0 ) { |
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52 | #ifdef MM_COUNT |
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53 | mm_bytesUsed += size; |
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54 | #endif |
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55 | mm_bytesReal += size; |
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56 | result=(mcb)malloc( size ); |
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57 | } |
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58 | else { |
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59 | size = mmGetSize( i ); |
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60 | #ifdef MM_COUNT |
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61 | mm_bytesUsed += size; /*mmGetSize( i );*/ |
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62 | #endif |
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63 | if ( ( result = mm_theList[i] ) == NULL ) { |
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64 | result=(mcb)mmGetMemory( size ); |
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65 | } |
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66 | else { |
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67 | mm_theList[i] = (mcb)*result; |
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68 | } |
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69 | } |
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70 | if (result!=NULL) memset(result,0,size); |
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71 | return result; |
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72 | } |
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73 | |
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74 | void |
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75 | mmFreeBlock( void* adr, size_t size ) |
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76 | { |
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77 | |
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78 | int i; |
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79 | |
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80 | if ( ( adr == NULL ) || ( size == 0 ) ) |
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81 | return; |
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82 | |
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83 | i = mmGetIndex( size ); |
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84 | |
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85 | if ( i < 0 ) { |
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86 | #ifdef MM_COUNT |
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87 | mm_bytesUsed -= size; |
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88 | #endif |
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89 | mm_bytesReal -= size; |
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90 | mmNewPrintMark(); |
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91 | free( adr ); |
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92 | } |
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93 | else { |
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94 | *(mcb)adr = mm_theList[i]; |
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95 | mm_theList[i] = (mcb)adr; |
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96 | size = mmGetSize( i ); |
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97 | #ifdef MM_COUNT |
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98 | mm_bytesUsed -= size; |
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99 | #endif |
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100 | } |
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101 | } |
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102 | |
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103 | void * |
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104 | mmReallocBlock( void* adr, size_t oldsize, size_t newsize ) |
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105 | { |
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106 | int i = mmGetIndex( oldsize ); |
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107 | int j = mmGetIndex( newsize ); |
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108 | void* newadr; |
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109 | |
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110 | if ( ( i < 0 ) && ( j < 0 ) ) { |
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111 | #ifdef MM_COUNT |
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112 | mm_bytesUsed += ( (int)newsize - (int)oldsize ); |
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113 | #endif |
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114 | mm_bytesReal += ( (int)newsize - (int)oldsize ); |
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115 | return realloc( adr, newsize ); |
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116 | } |
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117 | else if ( i == j ) |
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118 | return adr; |
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119 | else { |
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120 | /* since we know i and j this can be done better, this is the quick way */ |
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121 | newadr = mmAllocBlock( newsize ); |
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122 | memcpy( newadr, adr, (oldsize < newsize) ? oldsize : newsize ); |
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123 | mmFreeBlock( adr, oldsize ); |
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124 | return newadr; |
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125 | } |
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126 | } |
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127 | |
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128 | #else /* MDEBUG */ |
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129 | |
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130 | void * |
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131 | mmDBAllocBlock( size_t size, char * fname, int lineno ) |
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132 | { |
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133 | int i = mmGetIndex( size ); |
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134 | DBMCB * result; |
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135 | char * patptr; |
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136 | |
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137 | if ( i < 0 ) { |
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138 | int tmpsize=RealSizeFromSize(size); |
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139 | if (result = (DBMCB*)malloc( tmpsize )) { |
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140 | mm_bytesUsed += tmpsize; |
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141 | mm_bytesReal += tmpsize; |
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142 | mmMoveDBMCBInto( &mm_theDBused, result ); |
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143 | } |
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144 | else |
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145 | return NULL; |
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146 | } |
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147 | else { |
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148 | if ( mm_theList[i] != NULL ) { |
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149 | result = (DBMCB*)((char*)(mm_theList[i]) - DebugOffsetFront); |
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150 | mm_theList[i] = (mcb)*mm_theList[i]; |
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151 | #ifdef MM_TEST |
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152 | if ( ! mmCheckDBMCB( result, MM_FREEFLAG, mmGetSize( i ) ) ) { |
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153 | fprintf( stderr, "alloc list damaged, file %s, line %d", fname, lineno ); |
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154 | mmTestList(); |
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155 | exit(12); |
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156 | } |
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157 | #endif |
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158 | mmMoveDBMCB( &mm_theDBfree, &mm_theDBused, result ); |
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159 | mm_bytesUsed += mmGetSize( i ); |
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160 | } |
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161 | else { |
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162 | result = (DBMCB*)mmGetMemory( RealSizeFromSize( mmGetSize( i ) ) ); |
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163 | mmMoveDBMCBInto( &mm_theDBused, result ); |
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164 | mm_bytesUsed += mmGetSize( i ); |
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165 | } |
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166 | } |
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167 | if ( mm_minAddr == NULL ) { |
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168 | mm_minAddr = (void*)result; |
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169 | mm_maxAddr = (void*)result; |
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170 | } |
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171 | else if ( (void*)result < mm_minAddr ) |
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172 | mm_minAddr = (void*)result; |
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173 | else if ( (void*)result > mm_maxAddr ) |
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174 | mm_maxAddr = (void*)result; |
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175 | result->size = size; |
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176 | result->lineno = lineno; |
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177 | result->fname = fname; |
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178 | result->pattern = PATTERN; |
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179 | if ( mm_status == MM_TMP ) |
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180 | result->flags = MM_TMPFLAG | MM_USEDFLAG; |
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181 | else |
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182 | result->flags = MM_NORMFLAG | MM_USEDFLAG; |
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183 | /* pattern 2 has to be written at the end of the datablock */ |
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184 | patptr = ((char*)&result->data) + size; |
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185 | for ( i = 4; i > 0; i-- ) *(patptr++) = PATTERN2; |
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186 | #if MDEBUG != 0 |
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187 | printf("Alloc %d bytes from %s, l: %d, adr: %p\n",size,fname,lineno,(void*)(&result->data)); |
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188 | #endif |
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189 | memset((void*)&result->data,250,size); |
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190 | return (void*)&result->data; |
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191 | } |
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192 | |
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193 | void * |
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194 | mmDBAllocBlock0( size_t size, char * fname, int lineno ) |
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195 | { |
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196 | int i = mmGetIndex( size ); |
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197 | DBMCB * result; |
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198 | char * patptr; |
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199 | |
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200 | if ( i < 0 ) { |
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201 | int tmpsize=RealSizeFromSize(size); |
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202 | if (result = (DBMCB*)malloc( tmpsize )) { |
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203 | mm_bytesUsed += tmpsize; |
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204 | mm_bytesReal += tmpsize; |
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205 | mmMoveDBMCBInto( &mm_theDBused, result ); |
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206 | } |
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207 | else |
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208 | return NULL; |
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209 | } |
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210 | else { |
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211 | if ( mm_theList[i] != NULL ) { |
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212 | result = (DBMCB*)((char*)(mm_theList[i]) - DebugOffsetFront); |
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213 | mm_theList[i] = (mcb)*mm_theList[i]; |
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214 | #ifdef MM_TEST |
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215 | if ( ! mmCheckDBMCB( result, MM_FREEFLAG, mmGetSize( i ) ) ) { |
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216 | fprintf( stderr, "alloc list damaged, file %s, line %d", fname, lineno ); |
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217 | mmTestList(); |
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218 | exit(12); |
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219 | } |
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220 | #endif |
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221 | mmMoveDBMCB( &mm_theDBfree, &mm_theDBused, result ); |
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222 | mm_bytesUsed += mmGetSize( i ); |
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223 | } |
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224 | else { |
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225 | result = (DBMCB*)mmGetMemory( RealSizeFromSize( mmGetSize( i ) ) ); |
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226 | mmMoveDBMCBInto( &mm_theDBused, result ); |
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227 | mm_bytesUsed += mmGetSize( i ); |
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228 | } |
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229 | } |
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230 | if ( mm_minAddr == NULL ) { |
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231 | mm_minAddr = (void*)result; |
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232 | mm_maxAddr = (void*)result; |
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233 | } |
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234 | else if ( (void*)result < mm_minAddr ) |
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235 | mm_minAddr = (void*)result; |
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236 | else if ( (void*)result > mm_maxAddr ) |
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237 | mm_maxAddr = (void*)result; |
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238 | result->size = size; |
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239 | result->lineno = lineno; |
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240 | result->fname = fname; |
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241 | result->pattern = PATTERN; |
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242 | if ( mm_status == MM_TMP ) |
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243 | result->flags = MM_TMPFLAG | MM_USEDFLAG; |
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244 | else |
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245 | result->flags = MM_NORMFLAG | MM_USEDFLAG; |
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246 | /* pattern 2 has to be written at the end of the datablock */ |
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247 | patptr = ((char*)&result->data) + size; |
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248 | for ( i = 4; i > 0; i-- ) *(patptr++) = PATTERN2; |
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249 | #if MDEBUG != 0 |
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250 | printf("Alloc %d bytes from %s, l: %d, adr: %p\n",size,fname,lineno,(void*)(&result->data)); |
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251 | #endif |
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252 | memset((void*)&result->data,0,size); |
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253 | return (void*)&result->data; |
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254 | } |
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255 | |
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256 | void |
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257 | mmDBFreeBlock( void* adr, size_t size, char * fname, int lineno ) |
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258 | { |
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259 | int j, i = mmGetIndex( size ); |
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260 | char * patptr; |
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261 | DBMCB * what; |
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262 | |
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263 | if ( ( adr == NULL ) || ( size == 0 ) ) |
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264 | return; |
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265 | |
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266 | #if MDEBUG != 0 |
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267 | printf("Free %d bytes from %s, l: %d, adr: %p\n",size,fname,lineno,(void*)(adr)); |
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268 | #endif |
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269 | what = (DBMCB*)((char*)(adr) - DebugOffsetFront); |
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270 | if ( mm_status == MM_TMP ) { |
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271 | if ( ! mmCheckDBMCB( what, MM_TMPFLAG | MM_USEDFLAG, size ) ) { |
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272 | mmPrintFL( fname, lineno ); |
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273 | return; |
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274 | } |
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275 | what->flags = MM_TMPFLAG | MM_FREEFLAG; |
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276 | } |
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277 | else { |
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278 | if ( ! mmCheckDBMCB( what, MM_NORMFLAG | MM_USEDFLAG, size ) ) { |
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279 | mmPrintFL( fname, lineno ); |
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280 | return; |
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281 | } |
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282 | what->flags = MM_NORMFLAG | MM_FREEFLAG; |
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283 | } |
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284 | |
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285 | memset(adr,254,size); |
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286 | |
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287 | if ( i < 0 ) { |
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288 | int tmpsize=RealSizeFromSize(size); |
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289 | mm_bytesUsed -= tmpsize; |
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290 | mm_bytesReal -= tmpsize; |
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291 | mmNewPrintMark(); |
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292 | mmTakeOutDBMCB( &mm_theDBused, what ); |
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293 | free( what ); |
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294 | } |
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295 | else { |
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296 | what->size = mmGetSize( i ); |
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297 | what->fname = fname; |
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298 | what->lineno = lineno; |
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299 | patptr = ((char*)&what->data) + what->size; |
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300 | for ( j = 4; j > 0; j-- ) *(patptr++) = PATTERN2; |
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301 | what->data = mm_theList[i]; |
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302 | mm_theList[i] = (mcb)&what->data; |
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303 | mmMoveDBMCB( &mm_theDBused, &mm_theDBfree, what ); |
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304 | mm_bytesUsed -= mmGetSize( i ); |
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305 | } |
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306 | } |
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307 | |
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308 | void * |
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309 | mmDBReallocBlock( void* adr, size_t oldsize, size_t newsize, char * fname, int lineno ) |
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310 | { |
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311 | void* newadr; |
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312 | |
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313 | newadr = mmDBAllocBlock( newsize, fname, lineno ); |
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314 | memcpy( newadr, adr, (oldsize < newsize) ? oldsize : newsize ); |
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315 | mmDBFreeBlock( adr, oldsize, fname, lineno ); |
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316 | |
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317 | return newadr; |
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318 | } |
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319 | |
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320 | #endif /* MDEBUG */ |
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