Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib-dict/dict.c @ 9287:d7251058200c HEAD

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maildir+deliver: Add all existing messages to uidlist if it doesn't exist yet.
author Timo Sirainen <tss@iki.fi>
date Fri, 07 Aug 2009 13:24:13 -0400
parents eed86bcc33aa
children a1b92a251bb9
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b9faf4db2a9f Updated copyright notices to include year 2009.
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1 /* Copyright (c) 2005-2009 Dovecot authors, see the included COPYING file */
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2
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3 #include "lib.h"
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4 #include "array.h"
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5 #include "dict-sql.h"
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6 #include "dict-private.h"
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7
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8 static ARRAY_DEFINE(dict_drivers, struct dict *);
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9
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10 static struct dict *dict_driver_lookup(const char *name)
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11 {
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12 struct dict *const *dicts;
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13 unsigned int i, count;
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14
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15 dicts = array_get(&dict_drivers, &count);
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16 for (i = 0; i < count; i++) {
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17 if (strcmp(dicts[i]->name, name) == 0)
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18 return dicts[i];
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19 }
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20 return NULL;
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21 }
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22
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23 void dict_driver_register(struct dict *driver)
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24 {
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25 if (!array_is_created(&dict_drivers))
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26 i_array_init(&dict_drivers, 8);
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27
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28 if (dict_driver_lookup(driver->name) != NULL) {
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29 i_fatal("dict_driver_register(%s): Already registered",
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30 driver->name);
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31 }
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32 array_append(&dict_drivers, &driver, 1);
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33 }
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34
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35 void dict_driver_unregister(struct dict *driver)
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36 {
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37 struct dict *const *dicts;
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38 unsigned int i, count;
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39
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40 dicts = array_get(&dict_drivers, &count);
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41 for (i = 0; i < count; i++) {
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42 if (dicts[i] == driver) {
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43 array_delete(&dict_drivers, i, 1);
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44 break;
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45 }
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46 }
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48 i_assert(i < count);
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49
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50 if (array_count(&dict_drivers) == 0)
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51 array_free(&dict_drivers);
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52 }
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53
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54 void dict_drivers_register_builtin(void)
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55 {
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56 dict_driver_register(&dict_driver_client);
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57 dict_driver_register(&dict_driver_file);
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58 }
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59
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60 void dict_drivers_unregister_builtin(void)
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61 {
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62 dict_driver_unregister(&dict_driver_client);
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63 dict_driver_unregister(&dict_driver_file);
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64 }
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65
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66 struct dict *dict_init(const char *uri, enum dict_data_type value_type,
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67 const char *username, const char *base_dir)
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68 {
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69 struct dict *dict;
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70 const char *p, *name;
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71
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72 i_assert(username != NULL);
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73
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74 p = strchr(uri, ':');
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75 if (p == NULL) {
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76 i_error("Dictionary URI is missing ':': %s", uri);
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77 return NULL;
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78 }
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79
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80 T_BEGIN {
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81 name = t_strdup_until(uri, p);
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82 dict = dict_driver_lookup(name);
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83 if (dict == NULL)
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84 i_error("Unknown dict module: %s", name);
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85 } T_END;
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86
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87 return dict == NULL ? NULL :
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88 dict->v.init(dict, p+1, value_type, username, base_dir);
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89 }
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90
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91 void dict_deinit(struct dict **_dict)
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92 {
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93 struct dict *dict = *_dict;
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94
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95 *_dict = NULL;
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96 dict->v.deinit(dict);
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97 }
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98
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99 static bool dict_key_prefix_is_valid(const char *key)
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100 {
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101 return strncmp(key, DICT_PATH_SHARED, strlen(DICT_PATH_SHARED)) == 0 ||
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102 strncmp(key, DICT_PATH_PRIVATE, strlen(DICT_PATH_PRIVATE)) == 0;
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103 }
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104
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105 int dict_lookup(struct dict *dict, pool_t pool, const char *key,
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106 const char **value_r)
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107 {
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108 i_assert(dict_key_prefix_is_valid(key));
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109 return dict->v.lookup(dict, pool, key, value_r);
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110 }
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111
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112 struct dict_iterate_context *
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113 dict_iterate_init(struct dict *dict, const char *path,
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114 enum dict_iterate_flags flags)
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115 {
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116 i_assert(dict_key_prefix_is_valid(path));
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117 return dict->v.iterate_init(dict, path, flags);
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118 }
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119
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120 int dict_iterate(struct dict_iterate_context *ctx,
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121 const char **key_r, const char **value_r)
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122 {
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123 return ctx->dict->v.iterate(ctx, key_r, value_r);
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124 }
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125
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126 void dict_iterate_deinit(struct dict_iterate_context **_ctx)
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127 {
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128 struct dict_iterate_context *ctx = *_ctx;
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129
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130 *_ctx = NULL;
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131 ctx->dict->v.iterate_deinit(ctx);
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132 }
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133
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134 struct dict_transaction_context *dict_transaction_begin(struct dict *dict)
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135 {
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136 return dict->v.transaction_init(dict);
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137 }
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138
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139 int dict_transaction_commit(struct dict_transaction_context **_ctx)
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140 {
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141 struct dict_transaction_context *ctx = *_ctx;
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142
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143 *_ctx = NULL;
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144 return ctx->dict->v.transaction_commit(ctx, FALSE);
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145 }
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146
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147 void dict_transaction_commit_async(struct dict_transaction_context **_ctx)
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148 {
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149 struct dict_transaction_context *ctx = *_ctx;
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150
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151 *_ctx = NULL;
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152 ctx->dict->v.transaction_commit(ctx, TRUE);
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153 }
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154
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155 void dict_transaction_rollback(struct dict_transaction_context **_ctx)
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156 {
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157 struct dict_transaction_context *ctx = *_ctx;
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158
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159 *_ctx = NULL;
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160 ctx->dict->v.transaction_rollback(ctx);
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161 }
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162
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163 void dict_set(struct dict_transaction_context *ctx,
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164 const char *key, const char *value)
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165 {
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166 i_assert(dict_key_prefix_is_valid(key));
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167
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168 ctx->dict->v.set(ctx, key, value);
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169 ctx->changed = TRUE;
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170 }
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171
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172 void dict_unset(struct dict_transaction_context *ctx,
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173 const char *key)
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174 {
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175 i_assert(dict_key_prefix_is_valid(key));
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176
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177 ctx->dict->v.unset(ctx, key);
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178 ctx->changed = TRUE;
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179 }
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180
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181 void dict_atomic_inc(struct dict_transaction_context *ctx,
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182 const char *key, long long diff)
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183 {
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184 i_assert(dict_key_prefix_is_valid(key));
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185
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186 if (diff != 0) {
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187 ctx->dict->v.atomic_inc(ctx, key, diff);
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188 ctx->changed = TRUE;
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189 }
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190 }