1 | * Summary: interface for the memory allocator
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2 | * Description: provides interfaces for the memory allocator,
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3 | * including debugging capabilities.
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4 | *
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5 | * Copy: See Copyright for the status of this software.
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6 | *
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7 | * Author: Patrick Monnerat <[email protected]>, DATASPHERE S.A.
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8 |
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9 | /if not defined(DEBUG_MEMORY_ALLOC__)
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10 | /define DEBUG_MEMORY_ALLOC__
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11 |
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12 | /include "libxmlrpg/xmlversion"
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13 | /include "libxmlrpg/xmlTypesC"
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14 |
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15 | * DEBUG_MEMORY:
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16 | *
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17 | * DEBUG_MEMORY replaces the allocator with a collect and debug
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18 | * shell to the libc allocator.
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19 | * DEBUG_MEMORY should only be activated when debugging
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20 | * libxml i.e. if libxml has been configured with --with-debug-mem too.
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21 |
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22 | * /define DEBUG_MEMORY_FREED
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23 | * /define DEBUG_MEMORY_LOCATION
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24 |
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25 | /if defined(DEBUG)
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26 | /if not defined(DEBUG_MEMORY)
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27 | /define DEBUG_MEMORY
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28 | /endif
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29 | /endif
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30 |
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31 | * DEBUG_MEMORY_LOCATION:
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32 | *
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33 | * DEBUG_MEMORY_LOCATION should be activated only when debugging
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34 | * libxml i.e. if libxml has been configured with --with-debug-mem too.
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35 |
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36 | /if defined(DEBUG_MEMORY_LOCATION)
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37 | /endif
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38 |
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39 | * The XML memory wrapper support 4 basic overloadable functions.
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40 |
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41 | * xmlFreeFunc:
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42 | * @mem: an already allocated block of memory
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43 | *
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44 | * Signature for a free() implementation.
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45 |
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46 | d xmlFreeFunc s * based(######typedef######)
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47 | d procptr
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48 |
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49 | * xmlMallocFunc:
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50 | * @size: the size requested in bytes
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51 | *
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52 | * Signature for a malloc() implementation.
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53 | *
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54 | * Returns a pointer to the newly allocated block or NULL in case of error.
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55 |
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56 | d xmlMallocFunc s * based(######typedef######)
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57 | d procptr
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58 |
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59 | * xmlReallocFunc:
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60 | * @mem: an already allocated block of memory
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61 | * @size: the new size requested in bytes
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62 | *
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63 | * Signature for a realloc() implementation.
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64 | *
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65 | * Returns a pointer to the newly reallocated block or NULL in case of error.
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66 |
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67 | d xmlReallocFunc s * based(######typedef######)
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68 | d procptr
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69 |
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70 | * xmlStrdupFunc:
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71 | * @str: a zero terminated string
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72 | *
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73 | * Signature for an strdup() implementation.
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74 | *
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75 | * Returns the copy of the string or NULL in case of error.
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76 |
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77 | d xmlStrdupFunc s * based(######typedef######)
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78 | d procptr
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79 |
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80 | * The 5 interfaces used for all memory handling within libxml.
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81 | * Since indirect calls are only supported via a based prototype,
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82 | * storage is accessed via functions.
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83 |
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84 | d get_xmlFree pr extproc('__get_xmlFree')
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85 | d like(xmlFreeFunc)
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86 |
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87 | d set_xmlFree pr extproc('__set_xmlFree')
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88 | d func value like(xmlFreeFunc)
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89 |
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90 | d xmlFree pr extproc('__call_xmlFree')
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91 | d mem * value void *
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92 |
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93 | d get_xmlMalloc pr extproc('__get_xmlMalloc')
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94 | d like(xmlMallocFunc)
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95 |
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96 | d set_xmlMalloc pr extproc('__set_xmlMalloc')
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97 | d func value like(xmlMallocFunc)
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98 |
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99 | d xmlMalloc pr * extproc('__call_xmlMalloc') void *
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100 | d size value like(xmlCsize_t)
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101 |
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102 | d get_xmlMallocAtomic...
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103 | d pr extproc('__get_xmlMallocAtomic')
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104 | d like(xmlMallocFunc)
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105 |
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106 | d set_xmlMallocAtomic...
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107 | d pr extproc('__set_xmlMallocAtomic')
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108 | d func value like(xmlMallocFunc)
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109 |
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110 | d xmlMallocAtomic...
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111 | d pr * extproc('__call_xmlMallocAtomic') void *
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112 | d size value like(xmlCsize_t)
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113 |
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114 | d get_xmlRealloc pr extproc('__get_xmlRealloc')
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115 | d like(xmlReallocFunc)
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116 |
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117 | d set_xmlRealloc pr extproc('__set_xmlRealloc')
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118 | d func value like(xmlReallocFunc)
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119 |
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120 | d xmlRealloc pr * extproc('__call_xmlRealloc') void *
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121 | d mem * value void *
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122 | d size value like(xmlCsize_t)
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123 |
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124 | d get_xmlMemStrdup...
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125 | d pr extproc('__get_xmlMemStrdup')
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126 | d like(xmlStrdupFunc)
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127 |
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128 | d set_xmlMemStrdup...
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129 | d pr extproc('__set_xmlMemstrdup')
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130 | d func value like(xmlStrdupFunc)
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131 |
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132 | d xmlMemStrdup pr * extproc('__call_xmlMemStrdup') void *
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133 | d str * value options(*string) const char *
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134 |
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135 | * The way to overload the existing functions.
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136 | * The xmlGc function have an extra entry for atomic block
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137 | * allocations useful for garbage collected memory allocators
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138 |
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139 | d xmlMemSetup pr extproc('xmlMemSetup')
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140 | d like(xmlCint)
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141 | d freeFunc value like(xmlFreeFunc)
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142 | d mallocFunc value like(xmlMallocFunc)
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143 | d reallocFunc value like(xmlReallocFunc)
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144 | d strdupFunc value like(xmlStrdupFunc)
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145 |
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146 | d xmlMemGet pr extproc('xmlMemGet')
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147 | d like(xmlCint)
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148 | d freeFunc like(xmlFreeFunc)
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149 | d mallocFunc like(xmlMallocFunc)
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150 | d reallocFunc like(xmlReallocFunc)
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151 | d strdupFunc like(xmlStrdupFunc)
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152 |
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153 | d xmlGcMemSetup pr extproc('xmlGcMemSetup')
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154 | d like(xmlCint)
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155 | d freeFunc value like(xmlFreeFunc)
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156 | d mallocFunc value like(xmlMallocFunc)
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157 | d mallocAtomicFunc...
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158 | d value like(xmlMallocFunc)
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159 | d reallocFunc value like(xmlReallocFunc)
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160 | d strdupFunc value like(xmlStrdupFunc)
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161 |
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162 | d xmlGcMemGet pr extproc('xmlGcMemGet')
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163 | d like(xmlCint)
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164 | d freeFunc like(xmlFreeFunc)
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165 | d mallocFunc like(xmlMallocFunc)
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166 | d mallocAtomicFunc...
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167 | d like(xmlMallocFunc)
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168 | d reallocFunc like(xmlReallocFunc)
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169 | d strdupFunc like(xmlStrdupFunc)
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170 |
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171 | * Initialization of the memory layer.
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172 |
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173 | d xmlInitMemory pr extproc('xmlInitMemory')
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174 | d like(xmlCint)
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175 |
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176 | * Cleanup of the memory layer.
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177 |
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178 | d xmlCleanupMemory...
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179 | d pr extproc('xmlCleanupMemory')
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180 |
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181 | * These are specific to the XML debug memory wrapper.
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182 |
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183 | d xmlMemUsed pr extproc('xmlMemUsed')
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184 | d like(xmlCint)
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185 |
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186 | d xmlMemBlocks pr extproc('xmlMemBlocks')
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187 | d like(xmlCint)
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188 |
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189 | d xmlMemDisplay pr extproc('xmlMemDisplay')
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190 | d fp * value FILE *
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191 |
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192 | d xmlMmDisplayLast...
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193 | d pr extproc('xmlMemDisplayLast')
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194 | d fp * value FILE *
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195 | d nbBytes value like(xmlClong)
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196 |
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197 | d xmlMemShow pr extproc('xmlMemShow')
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198 | d fp * value FILE *
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199 | d nr value like(xmlCint)
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200 |
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201 | d xmlMemoryDump pr extproc('xmlMemoryDump')
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202 |
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203 | d xmlMemMalloc pr * extproc('xmlMemMalloc') void *
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204 | d size value like(xmlCsize_t)
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205 |
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206 | d xmlMemRealloc pr * extproc('xmlMemRealloc') void *
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207 | d ptr * value void *
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208 | d size value like(xmlCsize_t)
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209 |
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210 | d xmlMemFree pr extproc('xmlMemFree')
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211 | d ptr * value void *
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212 |
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213 | d xmlMemoryStrdup...
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214 | d pr * extproc('xmlMemoryStrdup') char *
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215 | d str * value options(*string) const char *
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216 |
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217 | d xmlMallocLoc pr * extproc('xmlMallocLoc') void *
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218 | d size value like(xmlCsize_t)
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219 | d file * value options(*string) const char *
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220 | d line value like(xmlCint)
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221 |
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222 | d xmlReallocLoc pr * extproc('xmlReallocLoc') void *
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223 | d ptr * value void *
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224 | d size value like(xmlCsize_t)
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225 | d file * value options(*string) const char *
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226 | d line value like(xmlCint)
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227 |
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228 | d xmlMallocAtomicLoc...
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229 | d pr * extproc('xmlMallocAtomicLoc') void *
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230 | d size value like(xmlCsize_t)
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231 | d file * value options(*string) const char *
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232 | d line value like(xmlCint)
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233 |
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234 | d xmlMemStrdupLoc...
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235 | d pr * extproc('xmlMemStrdupLoc') char *
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236 | d str * value options(*string) const char *
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237 | d file * value options(*string) const char *
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238 | d line value like(xmlCint)
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239 |
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240 | /if not defined(XML_GLOBALS_H)
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241 | /if not defined(XML_THREADS_H__)
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242 | /include "libxmlrpg/threads"
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243 | /include "libxmlrpg/globals"
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244 | /endif
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245 | /endif
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246 |
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247 | /endif DEBUG_MEMORY_ALLOC__
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