Mercurial > projects > ldc
annotate dmd2/mem.c @ 1064:f0b6549055ab
Make LDC work with LLVM trunk (s/LinkOnceLinkage/LinkOnceOdrLinkage/)
Also moved the #defines for linkage types into a separate header instead of
mars.h so we can #include revisions.h without having to rebuild the entire
frontend every time we update.
(I'm using revisions.h to get the LLVM revision for use in preprocessor
conditionals. It should work with LLVM release 2.5, old trunk and new trunk)
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Sun, 08 Mar 2009 16:13:10 +0100 |
parents | f04dde6e882c |
children | 638d16625da2 |
rev | line source |
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758
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1 |
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2 /* Copyright (c) 2000 Digital Mars */ |
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3 /* All Rights Reserved */ |
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4 |
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5 #include <cstdio> |
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6 #include <cstdlib> |
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7 #include <cstring> |
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8 #include <cassert> |
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9 |
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10 #include "mem.h" |
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11 |
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12 #if USE_BOEHM_GC |
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13 // I needed to perfix the dir after upgrading to gc 7.0 |
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14 #include "gc/gc.h" |
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15 #endif |
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16 |
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17 /* This implementation of the storage allocator uses the standard C allocation package. |
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18 */ |
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19 |
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20 Mem mem; |
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21 |
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22 #if USE_BOEHM_GC |
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23 |
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24 static bool gc_was_init = false; |
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25 |
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26 void Mem::init() |
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27 { |
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28 GC_init(); |
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29 gc_was_init = true; |
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30 } |
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31 |
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32 char *Mem::strdup(const char *s) |
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33 { |
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34 char *p; |
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35 |
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36 if (s) |
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37 { |
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38 p = GC_strdup(s); |
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39 if (p) |
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40 return p; |
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41 error(); |
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42 } |
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43 return NULL; |
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44 } |
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45 |
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46 void *Mem::malloc(size_t size) |
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47 { void *p; |
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48 |
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49 if (!size) |
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50 p = NULL; |
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51 else |
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52 { |
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53 p = GC_malloc(size); |
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54 if (!p) |
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55 error(); |
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56 } |
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57 return p; |
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58 } |
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59 |
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60 void *Mem::calloc(size_t size, size_t n) |
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61 { void *p; |
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62 |
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63 if (!size || !n) |
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64 p = NULL; |
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65 else |
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66 { |
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67 p = GC_malloc(size * n); |
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68 if (!p) |
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69 error(); |
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70 memset(p, 0, size * n); |
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71 } |
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72 return p; |
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73 } |
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74 |
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75 void *Mem::realloc(void *p, size_t size) |
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76 { |
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77 if (!size) |
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78 { if (p) |
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79 { GC_free(p); |
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80 p = NULL; |
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81 } |
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82 } |
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83 else if (!p) |
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84 { |
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85 p = GC_malloc(size); |
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86 if (!p) |
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87 error(); |
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88 } |
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89 else |
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90 { |
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91 p = GC_realloc(p, size); |
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92 if (!p) |
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93 error(); |
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94 } |
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95 return p; |
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96 } |
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97 |
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98 void Mem::free(void *p) |
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99 { |
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100 if (p) |
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101 GC_free(p); |
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102 } |
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103 |
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104 void *Mem::mallocdup(void *o, size_t size) |
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105 { void *p; |
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106 |
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107 if (!size) |
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108 p = NULL; |
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109 else |
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110 { |
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111 p = GC_malloc(size); |
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112 if (!p) |
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113 error(); |
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114 else |
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115 memcpy(p,o,size); |
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116 } |
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117 return p; |
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118 } |
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119 |
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120 void Mem::error() |
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121 { |
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122 printf("Error: out of memory\n"); |
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123 exit(EXIT_FAILURE); |
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124 } |
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125 |
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126 void Mem::fullcollect() |
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127 { |
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128 GC_gcollect(); |
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129 } |
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130 |
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131 void Mem::mark(void *pointer) |
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132 { |
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133 (void) pointer; // necessary for VC /W4 |
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134 } |
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135 |
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136 /* =================================================== */ |
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137 |
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138 void * operator new(size_t m_size) |
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139 { |
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140 // without this we segfault with gc 7.0 |
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141 if (!gc_was_init) { |
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142 mem.init(); |
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143 } |
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144 void *p = GC_malloc(m_size); |
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145 if (p) |
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146 return p; |
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147 printf("Error: out of memory\n"); |
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148 exit(EXIT_FAILURE); |
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149 return p; |
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150 } |
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151 |
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152 void operator delete(void *p) |
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153 { |
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154 GC_free(p); |
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155 } |
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156 |
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157 #elif !USE_BOEHM_GC |
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158 |
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159 void Mem::init() |
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160 { |
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161 } |
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162 |
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163 char *Mem::strdup(const char *s) |
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164 { |
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165 char *p; |
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166 |
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167 if (s) |
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168 { |
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169 p = ::strdup(s); |
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170 if (p) |
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171 return p; |
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172 error(); |
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173 } |
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174 return NULL; |
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175 } |
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176 |
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177 void *Mem::malloc(size_t size) |
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178 { void *p; |
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179 |
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180 if (!size) |
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181 p = NULL; |
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182 else |
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183 { |
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184 p = ::malloc(size); |
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185 if (!p) |
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186 error(); |
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187 } |
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188 return p; |
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189 } |
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190 |
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191 void *Mem::calloc(size_t size, size_t n) |
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192 { void *p; |
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193 |
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194 if (!size || !n) |
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195 p = NULL; |
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196 else |
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197 { |
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198 p = ::malloc(size * n); |
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199 if (!p) |
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200 error(); |
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201 memset(p, 0, size * n); |
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202 } |
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203 return p; |
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204 } |
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205 |
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206 void *Mem::realloc(void *p, size_t size) |
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207 { |
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208 if (!size) |
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209 { if (p) |
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210 { ::free(p); |
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211 p = NULL; |
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212 } |
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213 } |
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214 else if (!p) |
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215 { |
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216 p = ::malloc(size); |
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217 if (!p) |
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218 error(); |
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219 } |
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220 else |
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221 { |
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222 p = ::realloc(p, size); |
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223 if (!p) |
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224 error(); |
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225 } |
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226 return p; |
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227 } |
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228 |
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229 void Mem::free(void *p) |
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230 { |
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231 if (p) |
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232 ::free(p); |
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233 } |
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234 |
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235 void *Mem::mallocdup(void *o, size_t size) |
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236 { void *p; |
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237 |
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238 if (!size) |
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239 p = NULL; |
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240 else |
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241 { |
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242 p = ::malloc(size); |
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243 if (!p) |
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244 error(); |
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245 else |
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246 memcpy(p,o,size); |
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247 } |
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248 return p; |
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249 } |
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250 |
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251 void Mem::error() |
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252 { |
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253 printf("Error: out of memory\n"); |
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254 exit(EXIT_FAILURE); |
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255 } |
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256 |
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257 void Mem::fullcollect() |
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258 { |
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259 } |
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260 |
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261 void Mem::mark(void *pointer) |
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262 { |
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263 } |
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264 |
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265 #endif // USE_BOEHM_GC |