1 | /* |
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2 | * Summary: Chained hash tables |
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3 | * Description: This module implements the hash table support used in |
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4 | * various places in the library. |
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5 | * |
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6 | * Copy: See Copyright for the status of this software. |
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7 | * |
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8 | * Author: Bjorn Reese <bjorn.reese@systematic.dk> |
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9 | */ |
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10 | |
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11 | #ifndef __XML_HASH_H__ |
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12 | #define __XML_HASH_H__ |
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13 | |
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14 | #ifdef __cplusplus |
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15 | extern "C" { |
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16 | #endif |
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17 | |
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18 | /* |
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19 | * The hash table. |
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20 | */ |
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21 | typedef struct _xmlHashTable xmlHashTable; |
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22 | typedef xmlHashTable *xmlHashTablePtr; |
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23 | |
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24 | #ifdef __cplusplus |
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25 | } |
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26 | #endif |
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27 | |
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28 | #include <libxml/xmlversion.h> |
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29 | #include <libxml/parser.h> |
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30 | #include <libxml/dict.h> |
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31 | |
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32 | #ifdef __cplusplus |
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33 | extern "C" { |
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34 | #endif |
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35 | |
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36 | /* |
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37 | * Recent version of gcc produce a warning when a function pointer is assigned |
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38 | * to an object pointer, or vice versa. The following macro is a dirty hack |
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39 | * to allow suppression of the warning. If your architecture has function |
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40 | * pointers which are a different size than a void pointer, there may be some |
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41 | * serious trouble within the library. |
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42 | */ |
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43 | /** |
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44 | * XML_CAST_FPTR: |
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45 | * @fptr: pointer to a function |
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46 | * |
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47 | * Macro to do a casting from an object pointer to a |
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48 | * function pointer without encountering a warning from |
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49 | * gcc |
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50 | * |
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51 | * #define XML_CAST_FPTR(fptr) (*(void **)(&fptr)) |
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52 | * This macro violated ISO C aliasing rules (gcc4 on s390 broke) |
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53 | * so it is disabled now |
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54 | */ |
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55 | |
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56 | #define XML_CAST_FPTR(fptr) fptr |
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57 | |
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58 | |
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59 | /* |
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60 | * function types: |
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61 | */ |
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62 | /** |
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63 | * xmlHashDeallocator: |
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64 | * @payload: the data in the hash |
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65 | * @name: the name associated |
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66 | * |
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67 | * Callback to free data from a hash. |
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68 | */ |
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69 | typedef void (*xmlHashDeallocator)(void *payload, xmlChar *name); |
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70 | /** |
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71 | * xmlHashCopier: |
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72 | * @payload: the data in the hash |
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73 | * @name: the name associated |
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74 | * |
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75 | * Callback to copy data from a hash. |
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76 | * |
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77 | * Returns a copy of the data or NULL in case of error. |
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78 | */ |
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79 | typedef void *(*xmlHashCopier)(void *payload, xmlChar *name); |
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80 | /** |
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81 | * xmlHashScanner: |
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82 | * @payload: the data in the hash |
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83 | * @data: extra scannner data |
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84 | * @name: the name associated |
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85 | * |
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86 | * Callback when scanning data in a hash with the simple scanner. |
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87 | */ |
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88 | typedef void (*xmlHashScanner)(void *payload, void *data, xmlChar *name); |
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89 | /** |
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90 | * xmlHashScannerFull: |
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91 | * @payload: the data in the hash |
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92 | * @data: extra scannner data |
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93 | * @name: the name associated |
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94 | * @name2: the second name associated |
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95 | * @name3: the third name associated |
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96 | * |
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97 | * Callback when scanning data in a hash with the full scanner. |
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98 | */ |
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99 | typedef void (*xmlHashScannerFull)(void *payload, void *data, |
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100 | const xmlChar *name, const xmlChar *name2, |
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101 | const xmlChar *name3); |
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102 | |
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103 | /* |
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104 | * Constructor and destructor. |
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105 | */ |
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106 | XMLPUBFUN xmlHashTablePtr XMLCALL |
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107 | xmlHashCreate (int size); |
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108 | XMLPUBFUN xmlHashTablePtr XMLCALL |
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109 | xmlHashCreateDict(int size, |
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110 | xmlDictPtr dict); |
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111 | XMLPUBFUN void XMLCALL |
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112 | xmlHashFree (xmlHashTablePtr table, |
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113 | xmlHashDeallocator f); |
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114 | |
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115 | /* |
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116 | * Add a new entry to the hash table. |
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117 | */ |
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118 | XMLPUBFUN int XMLCALL |
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119 | xmlHashAddEntry (xmlHashTablePtr table, |
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120 | const xmlChar *name, |
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121 | void *userdata); |
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122 | XMLPUBFUN int XMLCALL |
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123 | xmlHashUpdateEntry(xmlHashTablePtr table, |
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124 | const xmlChar *name, |
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125 | void *userdata, |
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126 | xmlHashDeallocator f); |
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127 | XMLPUBFUN int XMLCALL |
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128 | xmlHashAddEntry2(xmlHashTablePtr table, |
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129 | const xmlChar *name, |
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130 | const xmlChar *name2, |
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131 | void *userdata); |
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132 | XMLPUBFUN int XMLCALL |
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133 | xmlHashUpdateEntry2(xmlHashTablePtr table, |
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134 | const xmlChar *name, |
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135 | const xmlChar *name2, |
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136 | void *userdata, |
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137 | xmlHashDeallocator f); |
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138 | XMLPUBFUN int XMLCALL |
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139 | xmlHashAddEntry3(xmlHashTablePtr table, |
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140 | const xmlChar *name, |
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141 | const xmlChar *name2, |
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142 | const xmlChar *name3, |
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143 | void *userdata); |
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144 | XMLPUBFUN int XMLCALL |
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145 | xmlHashUpdateEntry3(xmlHashTablePtr table, |
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146 | const xmlChar *name, |
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147 | const xmlChar *name2, |
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148 | const xmlChar *name3, |
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149 | void *userdata, |
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150 | xmlHashDeallocator f); |
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151 | |
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152 | /* |
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153 | * Remove an entry from the hash table. |
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154 | */ |
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155 | XMLPUBFUN int XMLCALL |
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156 | xmlHashRemoveEntry(xmlHashTablePtr table, const xmlChar *name, |
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157 | xmlHashDeallocator f); |
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158 | XMLPUBFUN int XMLCALL |
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159 | xmlHashRemoveEntry2(xmlHashTablePtr table, const xmlChar *name, |
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160 | const xmlChar *name2, xmlHashDeallocator f); |
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161 | XMLPUBFUN int XMLCALL |
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162 | xmlHashRemoveEntry3(xmlHashTablePtr table, const xmlChar *name, |
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163 | const xmlChar *name2, const xmlChar *name3, |
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164 | xmlHashDeallocator f); |
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165 | |
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166 | /* |
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167 | * Retrieve the userdata. |
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168 | */ |
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169 | XMLPUBFUN void * XMLCALL |
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170 | xmlHashLookup (xmlHashTablePtr table, |
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171 | const xmlChar *name); |
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172 | XMLPUBFUN void * XMLCALL |
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173 | xmlHashLookup2 (xmlHashTablePtr table, |
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174 | const xmlChar *name, |
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175 | const xmlChar *name2); |
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176 | XMLPUBFUN void * XMLCALL |
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177 | xmlHashLookup3 (xmlHashTablePtr table, |
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178 | const xmlChar *name, |
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179 | const xmlChar *name2, |
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180 | const xmlChar *name3); |
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181 | XMLPUBFUN void * XMLCALL |
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182 | xmlHashQLookup (xmlHashTablePtr table, |
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183 | const xmlChar *name, |
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184 | const xmlChar *prefix); |
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185 | XMLPUBFUN void * XMLCALL |
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186 | xmlHashQLookup2 (xmlHashTablePtr table, |
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187 | const xmlChar *name, |
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188 | const xmlChar *prefix, |
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189 | const xmlChar *name2, |
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190 | const xmlChar *prefix2); |
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191 | XMLPUBFUN void * XMLCALL |
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192 | xmlHashQLookup3 (xmlHashTablePtr table, |
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193 | const xmlChar *name, |
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194 | const xmlChar *prefix, |
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195 | const xmlChar *name2, |
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196 | const xmlChar *prefix2, |
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197 | const xmlChar *name3, |
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198 | const xmlChar *prefix3); |
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199 | |
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200 | /* |
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201 | * Helpers. |
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202 | */ |
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203 | XMLPUBFUN xmlHashTablePtr XMLCALL |
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204 | xmlHashCopy (xmlHashTablePtr table, |
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205 | xmlHashCopier f); |
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206 | XMLPUBFUN int XMLCALL |
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207 | xmlHashSize (xmlHashTablePtr table); |
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208 | XMLPUBFUN void XMLCALL |
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209 | xmlHashScan (xmlHashTablePtr table, |
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210 | xmlHashScanner f, |
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211 | void *data); |
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212 | XMLPUBFUN void XMLCALL |
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213 | xmlHashScan3 (xmlHashTablePtr table, |
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214 | const xmlChar *name, |
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215 | const xmlChar *name2, |
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216 | const xmlChar *name3, |
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217 | xmlHashScanner f, |
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218 | void *data); |
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219 | XMLPUBFUN void XMLCALL |
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220 | xmlHashScanFull (xmlHashTablePtr table, |
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221 | xmlHashScannerFull f, |
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222 | void *data); |
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223 | XMLPUBFUN void XMLCALL |
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224 | xmlHashScanFull3(xmlHashTablePtr table, |
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225 | const xmlChar *name, |
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226 | const xmlChar *name2, |
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227 | const xmlChar *name3, |
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228 | xmlHashScannerFull f, |
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229 | void *data); |
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230 | #ifdef __cplusplus |
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231 | } |
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232 | #endif |
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233 | #endif /* ! __XML_HASH_H__ */ |
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