Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/lib-index/mail-cache-fields.c @ 8026:ff6ccf848cc1 HEAD
Compiler warning fixes.
author | Timo Sirainen <tss@iki.fi> |
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date | Sun, 20 Jul 2008 20:29:37 +0300 |
parents | e6693a0ec8e1 |
children | c96d9af856d1 |
rev | line source |
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Updated copyright notices to include year 2008.
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1 /* Copyright (c) 2004-2008 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 "ioloop.h" |
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5 #include "buffer.h" |
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6 #include "hash.h" |
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7 #include "file-cache.h" |
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8 #include "read-full.h" |
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9 #include "write-full.h" |
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10 #include "mmap-util.h" |
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11 #include "mail-cache-private.h" |
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12 |
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13 #include <stddef.h> |
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14 |
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15 #define CACHE_FIELD_IS_NEWLY_WANTED(cache, field_idx) \ |
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16 ((cache)->field_file_map[field_idx] == (uint32_t)-1 && \ |
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17 (cache)->fields[field_idx].used) |
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18 |
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19 static bool field_has_fixed_size(enum mail_cache_field_type type) |
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20 { |
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21 switch (type) { |
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22 case MAIL_CACHE_FIELD_FIXED_SIZE: |
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23 case MAIL_CACHE_FIELD_BITMASK: |
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24 return TRUE; |
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25 case MAIL_CACHE_FIELD_VARIABLE_SIZE: |
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26 case MAIL_CACHE_FIELD_STRING: |
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27 case MAIL_CACHE_FIELD_HEADER: |
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28 return FALSE; |
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29 |
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30 case MAIL_CACHE_FIELD_COUNT: |
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31 break; |
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32 } |
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33 |
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34 i_unreached(); |
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35 return FALSE; |
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36 } |
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37 |
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38 static bool field_decision_is_valid(enum mail_cache_decision_type type) |
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39 { |
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40 switch (type & ~MAIL_CACHE_DECISION_FORCED) { |
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41 case MAIL_CACHE_DECISION_NO: |
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42 case MAIL_CACHE_DECISION_TEMP: |
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43 case MAIL_CACHE_DECISION_YES: |
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44 return TRUE; |
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45 default: |
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46 return FALSE; |
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47 } |
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48 } |
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49 |
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50 static int field_type_verify(struct mail_cache *cache, unsigned int idx, |
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51 enum mail_cache_field_type type, unsigned int size) |
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52 { |
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53 const struct mail_cache_field *field = &cache->fields[idx].field; |
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54 |
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55 if (field->type != type) { |
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56 mail_cache_set_corrupted(cache, |
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57 "registered field %s type changed", field->name); |
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58 return -1; |
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59 } |
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60 if (field->field_size != size && field_has_fixed_size(type)) { |
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61 mail_cache_set_corrupted(cache, |
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62 "registered field %s size changed", field->name); |
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63 return -1; |
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64 } |
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65 return 0; |
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66 } |
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67 |
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68 void mail_cache_register_fields(struct mail_cache *cache, |
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69 struct mail_cache_field *fields, |
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70 unsigned int fields_count) |
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71 { |
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72 void *orig_key, *orig_value; |
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73 char *name; |
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74 unsigned int new_idx; |
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75 unsigned int i, j; |
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76 |
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77 new_idx = cache->fields_count; |
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78 for (i = 0; i < fields_count; i++) { |
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79 if (hash_lookup_full(cache->field_name_hash, fields[i].name, |
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80 &orig_key, &orig_value)) { |
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81 i_assert(fields[i].type < MAIL_CACHE_FIELD_COUNT); |
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82 |
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83 fields[i].idx = |
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84 POINTER_CAST_TO(orig_value, unsigned int); |
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85 (void)field_type_verify(cache, fields[i].idx, |
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86 fields[i].type, |
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87 fields[i].field_size); |
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88 continue; |
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89 } |
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90 |
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91 /* check if the same header is being registered in the |
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92 same field array */ |
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93 for (j = 0; j < i; j++) { |
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94 if (strcasecmp(fields[i].name, fields[j].name) == 0) { |
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95 fields[i].idx = fields[j].idx; |
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96 break; |
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97 } |
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98 } |
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99 |
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100 if (j == i) |
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101 fields[i].idx = new_idx++; |
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102 } |
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103 |
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104 if (new_idx == cache->fields_count) |
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105 return; |
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106 |
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107 /* @UNSAFE */ |
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108 cache->fields = i_realloc(cache->fields, |
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109 cache->fields_count * sizeof(*cache->fields), |
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110 new_idx * sizeof(*cache->fields)); |
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111 cache->field_file_map = |
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112 i_realloc(cache->field_file_map, |
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113 cache->fields_count * sizeof(*cache->field_file_map), |
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114 new_idx * sizeof(*cache->field_file_map)); |
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115 |
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116 for (i = 0; i < fields_count; i++) { |
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117 unsigned int idx = fields[i].idx; |
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118 |
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119 if (idx < cache->fields_count) |
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120 continue; |
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121 |
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122 /* new index - save it */ |
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123 name = p_strdup(cache->field_pool, fields[i].name); |
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124 cache->fields[idx].field = fields[i]; |
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125 cache->fields[idx].field.name = name; |
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126 cache->field_file_map[idx] = (uint32_t)-1; |
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127 |
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128 if (!field_has_fixed_size(cache->fields[idx].field.type)) |
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129 cache->fields[idx].field.field_size = (unsigned int)-1; |
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130 |
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131 hash_insert(cache->field_name_hash, name, POINTER_CAST(idx)); |
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132 } |
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133 cache->fields_count = new_idx; |
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134 } |
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135 |
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136 unsigned int |
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137 mail_cache_register_lookup(struct mail_cache *cache, const char *name) |
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138 { |
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139 void *orig_key, *orig_value; |
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140 |
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141 if (hash_lookup_full(cache->field_name_hash, name, |
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142 &orig_key, &orig_value)) |
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143 return POINTER_CAST_TO(orig_value, unsigned int); |
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144 else |
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145 return (unsigned int)-1; |
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146 } |
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147 |
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148 const struct mail_cache_field * |
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149 mail_cache_register_get_list(struct mail_cache *cache, pool_t pool, |
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150 unsigned int *count_r) |
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151 { |
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152 struct mail_cache_field *list; |
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153 unsigned int i; |
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154 |
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155 if (!cache->opened) |
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156 (void)mail_cache_open_and_verify(cache); |
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157 |
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158 list = p_new(pool, struct mail_cache_field, cache->fields_count); |
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159 for (i = 0; i < cache->fields_count; i++) { |
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160 list[i] = cache->fields[i].field; |
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161 list[i].name = p_strdup(pool, list[i].name); |
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162 } |
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163 |
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164 *count_r = cache->fields_count; |
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165 return list; |
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166 } |
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167 |
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168 static int mail_cache_header_fields_get_offset(struct mail_cache *cache, |
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169 uint32_t *offset_r, bool map) |
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170 { |
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Header caching redesigned. New design allows caching decisions per field, so
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171 const struct mail_cache_header_fields *field_hdr; |
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172 struct mail_cache_header_fields tmp_field_hdr; |
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173 uint32_t offset = 0, next_offset; |
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174 unsigned int next_count = 0; |
6795
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175 bool invalidate = FALSE; |
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176 int ret; |
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177 |
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Header caching redesigned. New design allows caching decisions per field, so
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|
178 if (MAIL_CACHE_IS_UNUSABLE(cache)) { |
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|
179 *offset_r = 0; |
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180 return 0; |
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|
181 } |
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Header caching redesigned. New design allows caching decisions per field, so
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|
182 |
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Header caching redesigned. New design allows caching decisions per field, so
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|
183 /* find the latest header */ |
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184 offset = 0; |
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185 next_offset = cache->last_field_header_offset != 0 ? |
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186 cache->last_field_header_offset : |
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Transaction log file is now read-lockless.
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187 mail_index_offset_to_uint32(cache->hdr->field_header_offset); |
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188 while (next_offset != 0) { |
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189 if (next_offset == offset) { |
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Cache fixes. Decisions are saved again.
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|
190 mail_cache_set_corrupted(cache, |
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|
191 "next_offset in field header loops"); |
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Cache fixes. Decisions are saved again.
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192 return -1; |
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Cache fixes. Decisions are saved again.
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193 } |
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194 offset = next_offset; |
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195 invalidate = TRUE; |
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196 |
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197 if (cache->mmap_base != NULL) { |
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198 if (mail_cache_map(cache, offset, |
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199 sizeof(*field_hdr)) < 0) |
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200 return -1; |
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201 |
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202 field_hdr = CONST_PTR_OFFSET(cache->data, offset); |
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203 } else { |
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204 /* if we need to follow multiple offsets to get to |
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205 the last one, it's faster to just pread() the file |
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206 instead of going through cache */ |
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207 ret = pread_full(cache->fd, &tmp_field_hdr, |
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208 sizeof(tmp_field_hdr), offset); |
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209 if (ret < 0) { |
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210 mail_cache_set_syscall_error(cache, "pread()"); |
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211 return -1; |
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212 } |
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213 if (ret == 0) { |
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214 mail_cache_set_corrupted(cache, |
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215 "next_offset points outside file"); |
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216 return -1; |
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217 } |
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218 field_hdr = &tmp_field_hdr; |
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219 } |
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220 |
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221 next_offset = |
2407
fed6d07bd8ee
Transaction log file is now read-lockless.
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diff
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222 mail_index_offset_to_uint32(field_hdr->next_offset); |
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223 next_count++; |
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Header caching redesigned. New design allows caching decisions per field, so
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|
224 } |
7d02e2a7672d
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225 |
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226 if (offset == 0) { |
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When reading the latest fields, begin finding the fields from the last known
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227 mail_cache_set_corrupted(cache, "missing header fields"); |
68bb5bec043e
When reading the latest fields, begin finding the fields from the last known
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228 return -1; |
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When reading the latest fields, begin finding the fields from the last known
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|
229 } |
68bb5bec043e
When reading the latest fields, begin finding the fields from the last known
Timo Sirainen <tss@iki.fi>
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6704
diff
changeset
|
230 cache->last_field_header_offset = offset; |
68bb5bec043e
When reading the latest fields, begin finding the fields from the last known
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diff
changeset
|
231 |
6695
76c0e3a4df7a
If we need to do more than 4 reads to get to the cached fields header,
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6694
diff
changeset
|
232 if (next_count > MAIL_CACHE_HEADER_FIELD_CONTINUE_COUNT) |
76c0e3a4df7a
If we need to do more than 4 reads to get to the cached fields header,
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6694
diff
changeset
|
233 cache->need_compress_file_seq = cache->hdr->file_seq; |
76c0e3a4df7a
If we need to do more than 4 reads to get to the cached fields header,
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6694
diff
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|
234 |
6704
b0e8403b4bb1
mmap_disable=yes: Find the latest cache field header by pread()ing the file
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6695
diff
changeset
|
235 if (map) { |
6795
407f75ee2598
mmap_disable=yes: Don't invalidate file cache unneededly when reading cache
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6717
diff
changeset
|
236 if (cache->file_cache != NULL && invalidate) { |
407f75ee2598
mmap_disable=yes: Don't invalidate file cache unneededly when reading cache
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diff
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|
237 /* if this isn't the first header in file and we hadn't |
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mmap_disable=yes: Don't invalidate file cache unneededly when reading cache
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diff
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|
238 read this before, we can't trust that the cached |
407f75ee2598
mmap_disable=yes: Don't invalidate file cache unneededly when reading cache
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6717
diff
changeset
|
239 data is valid */ |
6704
b0e8403b4bb1
mmap_disable=yes: Find the latest cache field header by pread()ing the file
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6695
diff
changeset
|
240 file_cache_invalidate(cache->file_cache, offset, |
b0e8403b4bb1
mmap_disable=yes: Find the latest cache field header by pread()ing the file
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diff
changeset
|
241 field_hdr->size); |
b0e8403b4bb1
mmap_disable=yes: Find the latest cache field header by pread()ing the file
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|
242 } |
b0e8403b4bb1
mmap_disable=yes: Find the latest cache field header by pread()ing the file
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|
243 if (mail_cache_map(cache, offset, field_hdr->size) < 0) |
b0e8403b4bb1
mmap_disable=yes: Find the latest cache field header by pread()ing the file
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244 return -1; |
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mmap_disable=yes: Find the latest cache field header by pread()ing the file
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245 } |
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mmap_disable=yes: Find the latest cache field header by pread()ing the file
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246 |
2327
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Header caching redesigned. New design allows caching decisions per field, so
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changeset
|
247 *offset_r = offset; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
248 return 0; |
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Header caching redesigned. New design allows caching decisions per field, so
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|
249 } |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
250 |
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Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
251 int mail_cache_header_fields_read(struct mail_cache *cache) |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
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|
252 { |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
253 const struct mail_cache_header_fields *field_hdr = NULL; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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254 struct mail_cache_field field; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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changeset
|
255 const uint32_t *last_used, *sizes; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
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|
256 const uint8_t *types, *decisions; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
257 const char *p, *names, *end; |
2339
406692edc12d
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258 void *orig_key, *orig_value; |
7043
7708a8c166d6
Compiler warning fixes on 32bit systems.
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|
259 unsigned int fidx, new_fields_count; |
7075
c8507f755f0b
Don't trigger cache compression based on fields with a forced decision.
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diff
changeset
|
260 enum mail_cache_decision_type dec; |
6296
205ee38f10d1
Drop fields that haven't been used for 30 days when compressing.
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6003
diff
changeset
|
261 time_t max_drop_time; |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
262 uint32_t offset, i; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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263 |
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264 if (mail_cache_header_fields_get_offset(cache, &offset, TRUE) < 0) |
2327
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265 return -1; |
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|
266 |
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Header caching redesigned. New design allows caching decisions per field, so
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|
267 if (offset == 0) { |
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Header caching redesigned. New design allows caching decisions per field, so
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268 /* no fields - the file is empty */ |
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Header caching redesigned. New design allows caching decisions per field, so
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269 return 0; |
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|
270 } |
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Header caching redesigned. New design allows caching decisions per field, so
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|
271 |
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bf1e718e7370
Cache file works now with mmap_disable=yes. Still needs a few optimizations.
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diff
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|
272 field_hdr = CONST_PTR_OFFSET(cache->data, offset); |
2327
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273 if (offset + field_hdr->size > cache->mmap_length) { |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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274 mail_cache_set_corrupted(cache, |
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Header caching redesigned. New design allows caching decisions per field, so
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275 "field header points outside file"); |
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Header caching redesigned. New design allows caching decisions per field, so
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276 return -1; |
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|
277 } |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
278 |
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Header caching redesigned. New design allows caching decisions per field, so
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279 /* check the fixed size of the header. name[] has to be checked |
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Header caching redesigned. New design allows caching decisions per field, so
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diff
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|
280 separately */ |
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Header caching redesigned. New design allows caching decisions per field, so
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|
281 if (field_hdr->size < sizeof(*field_hdr) + |
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Header caching redesigned. New design allows caching decisions per field, so
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282 field_hdr->fields_count * (sizeof(uint32_t)*2 + 1 + 2)) { |
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Header caching redesigned. New design allows caching decisions per field, so
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|
283 mail_cache_set_corrupted(cache, "invalid field header size"); |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
284 return -1; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
285 } |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
286 |
2866
bf1e718e7370
Cache file works now with mmap_disable=yes. Still needs a few optimizations.
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2708
diff
changeset
|
287 field_hdr = CONST_PTR_OFFSET(cache->data, offset); |
5952
ba118a9eeb50
Some paranoia fixes for memory allocation. Don't access a mmaped variable
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5947
diff
changeset
|
288 new_fields_count = field_hdr->fields_count; |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
289 |
5952
ba118a9eeb50
Some paranoia fixes for memory allocation. Don't access a mmaped variable
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5947
diff
changeset
|
290 if (new_fields_count != 0) { |
4110
9662de8fc649
Don't crash with "can't allocate 0 bytes of memory" if there are zero
Timo Sirainen <tss@iki.fi>
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4020
diff
changeset
|
291 cache->file_field_map = |
9662de8fc649
Don't crash with "can't allocate 0 bytes of memory" if there are zero
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diff
changeset
|
292 i_realloc(cache->file_field_map, |
9662de8fc649
Don't crash with "can't allocate 0 bytes of memory" if there are zero
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diff
changeset
|
293 cache->file_fields_count * |
9662de8fc649
Don't crash with "can't allocate 0 bytes of memory" if there are zero
Timo Sirainen <tss@iki.fi>
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4020
diff
changeset
|
294 sizeof(unsigned int), |
5952
ba118a9eeb50
Some paranoia fixes for memory allocation. Don't access a mmaped variable
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5947
diff
changeset
|
295 new_fields_count * sizeof(unsigned int)); |
4110
9662de8fc649
Don't crash with "can't allocate 0 bytes of memory" if there are zero
Timo Sirainen <tss@iki.fi>
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4020
diff
changeset
|
296 } else { |
9662de8fc649
Don't crash with "can't allocate 0 bytes of memory" if there are zero
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diff
changeset
|
297 i_free_and_null(cache->file_field_map); |
9662de8fc649
Don't crash with "can't allocate 0 bytes of memory" if there are zero
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diff
changeset
|
298 } |
5952
ba118a9eeb50
Some paranoia fixes for memory allocation. Don't access a mmaped variable
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5947
diff
changeset
|
299 cache->file_fields_count = new_fields_count; |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
300 |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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2327
diff
changeset
|
301 last_used = CONST_PTR_OFFSET(field_hdr, MAIL_CACHE_FIELD_LAST_USED()); |
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
302 sizes = CONST_PTR_OFFSET(field_hdr, |
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
303 MAIL_CACHE_FIELD_SIZE(field_hdr->fields_count)); |
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
304 types = CONST_PTR_OFFSET(field_hdr, |
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Cache fixes. Decisions are saved again.
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changeset
|
305 MAIL_CACHE_FIELD_TYPE(field_hdr->fields_count)); |
406692edc12d
Cache fixes. Decisions are saved again.
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diff
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|
306 decisions = CONST_PTR_OFFSET(field_hdr, |
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Cache fixes. Decisions are saved again.
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diff
changeset
|
307 MAIL_CACHE_FIELD_DECISION(field_hdr->fields_count)); |
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
308 names = CONST_PTR_OFFSET(field_hdr, |
406692edc12d
Cache fixes. Decisions are saved again.
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2327
diff
changeset
|
309 MAIL_CACHE_FIELD_NAMES(field_hdr->fields_count)); |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
310 end = CONST_PTR_OFFSET(field_hdr, field_hdr->size); |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
311 |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
312 /* clear the old mapping */ |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
313 for (i = 0; i < cache->fields_count; i++) |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
314 cache->field_file_map[i] = (uint32_t)-1; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
315 |
6922
284c22a7a92e
Don't compress cache file unneededly when creating the first messages.
Timo Sirainen <tss@iki.fi>
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6795
diff
changeset
|
316 max_drop_time = cache->index->map->hdr.day_stamp == 0 ? 0 : |
284c22a7a92e
Don't compress cache file unneededly when creating the first messages.
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6795
diff
changeset
|
317 cache->index->map->hdr.day_stamp - MAIL_CACHE_FIELD_DROP_SECS; |
6296
205ee38f10d1
Drop fields that haven't been used for 30 days when compressing.
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6003
diff
changeset
|
318 |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
319 memset(&field, 0, sizeof(field)); |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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diff
changeset
|
320 for (i = 0; i < field_hdr->fields_count; i++) { |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
321 for (p = names; p != end && *p != '\0'; p++) ; |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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2327
diff
changeset
|
322 if (p == end || *names == '\0') { |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
323 mail_cache_set_corrupted(cache, |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
324 "field header names corrupted"); |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
325 return -1; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
326 } |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
327 |
4722
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
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4654
diff
changeset
|
328 if (types[i] > MAIL_CACHE_FIELD_COUNT) { |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
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4654
diff
changeset
|
329 mail_cache_set_corrupted(cache, "field type corrupted"); |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
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diff
changeset
|
330 return -1; |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
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4654
diff
changeset
|
331 } |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
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4654
diff
changeset
|
332 if (!field_decision_is_valid(decisions[i])) { |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
Timo Sirainen <tss@iki.fi>
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4654
diff
changeset
|
333 mail_cache_set_corrupted(cache, |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
Timo Sirainen <tss@iki.fi>
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4654
diff
changeset
|
334 "field decision type corrupted"); |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
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4654
diff
changeset
|
335 return -1; |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
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4654
diff
changeset
|
336 } |
b0cf3e4d6c96
If cache file contains broken field type or decision type mark the cache
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4654
diff
changeset
|
337 |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
338 if (hash_lookup_full(cache->field_name_hash, names, |
406692edc12d
Cache fixes. Decisions are saved again.
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2327
diff
changeset
|
339 &orig_key, &orig_value)) { |
406692edc12d
Cache fixes. Decisions are saved again.
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2327
diff
changeset
|
340 /* already exists, see if decision can be updated */ |
7043
7708a8c166d6
Compiler warning fixes on 32bit systems.
Timo Sirainen <tss@iki.fi>
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6940
diff
changeset
|
341 fidx = POINTER_CAST_TO(orig_value, unsigned int); |
7708a8c166d6
Compiler warning fixes on 32bit systems.
Timo Sirainen <tss@iki.fi>
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6940
diff
changeset
|
342 if (!cache->fields[fidx].decision_dirty) { |
7708a8c166d6
Compiler warning fixes on 32bit systems.
Timo Sirainen <tss@iki.fi>
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6940
diff
changeset
|
343 cache->fields[fidx].field.decision = |
2339
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
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|
344 decisions[i]; |
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Cache fixes. Decisions are saved again.
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345 } |
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Compiler warning fixes on 32bit systems.
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346 if (field_type_verify(cache, fidx, |
4654
35d9433de1ca
When registering fields, if they were already exited in the cache file mark
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4345
diff
changeset
|
347 types[i], sizes[i]) < 0) |
4345
f5d9c2b4d118
If cache field's size is wrong, rebuild the cache file instead of crashing
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348 return -1; |
2339
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Cache fixes. Decisions are saved again.
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349 } else { |
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Cache fixes. Decisions are saved again.
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350 field.name = names; |
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Cache fixes. Decisions are saved again.
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351 field.type = types[i]; |
406692edc12d
Cache fixes. Decisions are saved again.
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352 field.field_size = sizes[i]; |
406692edc12d
Cache fixes. Decisions are saved again.
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353 field.decision = decisions[i]; |
406692edc12d
Cache fixes. Decisions are saved again.
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354 mail_cache_register_fields(cache, &field, 1); |
7043
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diff
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355 fidx = field.idx; |
2339
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Cache fixes. Decisions are saved again.
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356 } |
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Compiler warning fixes on 32bit systems.
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diff
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|
357 if (cache->field_file_map[fidx] != (uint32_t)-1) { |
2968
2ab037df6cf3
Check for duplicate fields in header.
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diff
changeset
|
358 mail_cache_set_corrupted(cache, |
2ab037df6cf3
Check for duplicate fields in header.
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diff
changeset
|
359 "Duplicated field in header: %s", names); |
2ab037df6cf3
Check for duplicate fields in header.
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diff
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|
360 return -1; |
2ab037df6cf3
Check for duplicate fields in header.
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diff
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|
361 } |
7043
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Compiler warning fixes on 32bit systems.
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diff
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|
362 cache->fields[fidx].used = TRUE; |
6296
205ee38f10d1
Drop fields that haven't been used for 30 days when compressing.
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diff
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|
363 |
7043
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Compiler warning fixes on 32bit systems.
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diff
changeset
|
364 cache->field_file_map[fidx] = i; |
7058
cf4cee852a05
Previous compiler warning fix changes broke cache file reading.
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diff
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365 cache->file_field_map[i] = fidx; |
2327
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Header caching redesigned. New design allows caching decisions per field, so
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|
366 |
2339
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Cache fixes. Decisions are saved again.
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367 /* update last_used if it's newer than ours */ |
7043
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368 if (last_used[i] > cache->fields[fidx].last_used) |
7708a8c166d6
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369 cache->fields[fidx].last_used = last_used[i]; |
2339
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370 |
7075
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Don't trigger cache compression based on fields with a forced decision.
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371 dec = cache->fields[fidx].field.decision; |
7043
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diff
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372 if ((time_t)cache->fields[fidx].last_used < max_drop_time && |
7070
1bf9e7248e15
If cache field is cached with decision=no, don't try to compress cache file
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diff
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373 cache->fields[fidx].last_used != 0 && |
7075
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Don't trigger cache compression based on fields with a forced decision.
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diff
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374 (dec & MAIL_CACHE_DECISION_FORCED) == 0 && |
c8507f755f0b
Don't trigger cache compression based on fields with a forced decision.
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375 dec != MAIL_CACHE_DECISION_NO) { |
6707
4752637a6ad4
Don't bother compressing cache file just to drop fields from header that
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diff
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376 /* time to drop this field. don't bother dropping |
4752637a6ad4
Don't bother compressing cache file just to drop fields from header that
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diff
changeset
|
377 fields that have never been used. */ |
6296
205ee38f10d1
Drop fields that haven't been used for 30 days when compressing.
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diff
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378 cache->need_compress_file_seq = cache->hdr->file_seq; |
205ee38f10d1
Drop fields that haven't been used for 30 days when compressing.
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|
379 } |
205ee38f10d1
Drop fields that haven't been used for 30 days when compressing.
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380 |
2339
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Cache fixes. Decisions are saved again.
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381 names = p + 1; |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
382 } |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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|
383 return 0; |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
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|
384 } |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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parents:
diff
changeset
|
385 |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
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|
386 static void copy_to_buf(struct mail_cache *cache, buffer_t *dest, bool add_new, |
2339
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Cache fixes. Decisions are saved again.
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387 size_t offset, size_t size) |
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Cache fixes. Decisions are saved again.
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388 { |
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Cache fixes. Decisions are saved again.
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|
389 const void *data; |
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Cache fixes. Decisions are saved again.
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|
390 unsigned int i, field; |
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Cache fixes. Decisions are saved again.
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|
391 |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
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392 /* copy the existing fields */ |
2339
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Cache fixes. Decisions are saved again.
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393 for (i = 0; i < cache->file_fields_count; i++) { |
406692edc12d
Cache fixes. Decisions are saved again.
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394 field = cache->file_field_map[i]; |
406692edc12d
Cache fixes. Decisions are saved again.
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395 data = CONST_PTR_OFFSET(&cache->fields[field], offset); |
406692edc12d
Cache fixes. Decisions are saved again.
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396 buffer_append(dest, data, size); |
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Cache fixes. Decisions are saved again.
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|
397 } |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
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diff
changeset
|
398 if (!add_new) |
53313d1e7e4f
Code cleanups and some minor fixes.
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diff
changeset
|
399 return; |
53313d1e7e4f
Code cleanups and some minor fixes.
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diff
changeset
|
400 |
53313d1e7e4f
Code cleanups and some minor fixes.
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diff
changeset
|
401 /* copy newly wanted fields */ |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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diff
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|
402 for (i = 0; i < cache->fields_count; i++) { |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
403 if (CACHE_FIELD_IS_NEWLY_WANTED(cache, i)) { |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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6429
diff
changeset
|
404 data = CONST_PTR_OFFSET(&cache->fields[i], offset); |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
405 buffer_append(dest, data, size); |
53313d1e7e4f
Code cleanups and some minor fixes.
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diff
changeset
|
406 } |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
407 } |
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
408 } |
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
409 |
2342 | 410 static void copy_to_buf_byte(struct mail_cache *cache, buffer_t *dest, |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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6429
diff
changeset
|
411 bool add_new, size_t offset) |
2342 | 412 { |
413 const int *data; | |
414 unsigned int i, field; | |
415 uint8_t byte; | |
416 | |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
417 /* copy the existing fields */ |
2342 | 418 for (i = 0; i < cache->file_fields_count; i++) { |
419 field = cache->file_field_map[i]; | |
420 data = CONST_PTR_OFFSET(&cache->fields[field], offset); | |
421 byte = (uint8_t)*data; | |
422 buffer_append(dest, &byte, 1); | |
423 } | |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
424 if (!add_new) |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
parents:
6429
diff
changeset
|
425 return; |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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6429
diff
changeset
|
426 |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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6429
diff
changeset
|
427 /* copy newly wanted fields */ |
2342 | 428 for (i = 0; i < cache->fields_count; i++) { |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
429 if (CACHE_FIELD_IS_NEWLY_WANTED(cache, i)) { |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
430 data = CONST_PTR_OFFSET(&cache->fields[i], offset); |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
431 byte = (uint8_t)*data; |
53313d1e7e4f
Code cleanups and some minor fixes.
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diff
changeset
|
432 buffer_append(dest, &byte, 1); |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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6429
diff
changeset
|
433 } |
2342 | 434 } |
435 } | |
436 | |
2929 | 437 static int mail_cache_header_fields_update_locked(struct mail_cache *cache) |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
Timo Sirainen <tss@iki.fi>
parents:
diff
changeset
|
438 { |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
439 buffer_t *buffer; |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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6429
diff
changeset
|
440 uint32_t i, offset, dec_offset; |
2339
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
441 int ret = 0; |
2327
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
Timo Sirainen <tss@iki.fi>
parents:
diff
changeset
|
442 |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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parents:
2327
diff
changeset
|
443 if (mail_cache_header_fields_read(cache) < 0 || |
6704
b0e8403b4bb1
mmap_disable=yes: Find the latest cache field header by pread()ing the file
Timo Sirainen <tss@iki.fi>
parents:
6695
diff
changeset
|
444 mail_cache_header_fields_get_offset(cache, &offset, FALSE) < 0) |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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diff
changeset
|
445 return -1; |
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
446 |
2708
f1e9f3ec8135
Buffer API change: we no longer support limited sized buffers where
Timo Sirainen <tss@iki.fi>
parents:
2604
diff
changeset
|
447 buffer = buffer_create_dynamic(pool_datastack_create(), 256); |
2339
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
448 |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
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6429
diff
changeset
|
449 copy_to_buf(cache, buffer, FALSE, |
2339
406692edc12d
Cache fixes. Decisions are saved again.
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parents:
2327
diff
changeset
|
450 offsetof(struct mail_cache_field_private, last_used), |
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
451 sizeof(uint32_t)); |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
parents:
6429
diff
changeset
|
452 ret = mail_cache_write(cache, buffer->data, buffer->used, |
3375
9e2abc4c341c
Whenever writing to cache file, also updated file_cache. Fixes problems with
Timo Sirainen <tss@iki.fi>
parents:
3278
diff
changeset
|
453 offset + MAIL_CACHE_FIELD_LAST_USED()); |
2339
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
454 if (ret == 0) { |
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
455 buffer_set_used_size(buffer, 0); |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
parents:
6429
diff
changeset
|
456 copy_to_buf_byte(cache, buffer, FALSE, |
2342 | 457 offsetof(struct mail_cache_field, decision)); |
2339
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
458 |
6443
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
parents:
6429
diff
changeset
|
459 dec_offset = offset + |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
parents:
6429
diff
changeset
|
460 MAIL_CACHE_FIELD_DECISION(cache->file_fields_count); |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
parents:
6429
diff
changeset
|
461 ret = mail_cache_write(cache, buffer->data, buffer->used, |
53313d1e7e4f
Code cleanups and some minor fixes.
Timo Sirainen <tss@iki.fi>
parents:
6429
diff
changeset
|
462 dec_offset); |
2339
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
463 if (ret == 0) { |
2592 | 464 for (i = 0; i < cache->file_fields_count; i++) |
2339
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
465 cache->fields[i].decision_dirty = FALSE; |
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
466 } |
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
467 } |
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
468 |
2867
d416b6d0a7ee
More correct file cache invalidating.
Timo Sirainen <tss@iki.fi>
parents:
2866
diff
changeset
|
469 if (ret == 0) |
2339
406692edc12d
Cache fixes. Decisions are saved again.
Timo Sirainen <tss@iki.fi>
parents:
2327
diff
changeset
|
470 cache->field_header_write_pending = FALSE; |
2929 | 471 return ret; |
472 } | |
473 | |
474 int mail_cache_header_fields_update(struct mail_cache *cache) | |
475 { | |
476 int ret; | |
477 | |
6940
414c9d631a81
Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents:
6922
diff
changeset
|
478 if (cache->locked) { |
7226
e6693a0ec8e1
Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents:
7105
diff
changeset
|
479 T_BEGIN { |
6940
414c9d631a81
Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents:
6922
diff
changeset
|
480 ret = mail_cache_header_fields_update_locked(cache); |
7226
e6693a0ec8e1
Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents:
7105
diff
changeset
|
481 } T_END; |
6940
414c9d631a81
Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents:
6922
diff
changeset
|
482 return ret; |
414c9d631a81
Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents:
6922
diff
changeset
|
483 } |
2929 | 484 |
8026 | 485 if (mail_cache_lock(cache, FALSE) <= 0) |
2929 | 486 return -1; |
487 | |
7226
e6693a0ec8e1
Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents:
7105
diff
changeset
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488 T_BEGIN { |
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Replaced t_push/t_pop calls with T_FRAME*() macros.
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489 ret = mail_cache_header_fields_update_locked(cache); |
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Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
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490 } T_END; |
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Unlocking cache file can also corrupt it since it modifies it. Added a
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491 if (mail_cache_unlock(cache) < 0) |
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492 ret = -1; |
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493 return ret; |
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494 } |
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495 |
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496 void mail_cache_header_fields_get(struct mail_cache *cache, buffer_t *dest) |
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497 { |
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498 struct mail_cache_header_fields hdr; |
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499 unsigned int field; |
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500 const char *name; |
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501 uint32_t i; |
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502 |
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503 memset(&hdr, 0, sizeof(hdr)); |
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504 hdr.fields_count = cache->file_fields_count; |
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505 for (i = 0; i < cache->fields_count; i++) { |
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506 if (CACHE_FIELD_IS_NEWLY_WANTED(cache, i)) |
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507 hdr.fields_count++; |
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508 } |
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509 buffer_append(dest, &hdr, sizeof(hdr)); |
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510 |
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511 /* we have to keep the field order for the existing fields. */ |
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512 copy_to_buf(cache, dest, TRUE, |
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513 offsetof(struct mail_cache_field_private, last_used), |
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514 sizeof(uint32_t)); |
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515 copy_to_buf(cache, dest, TRUE, |
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516 offsetof(struct mail_cache_field, field_size), |
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517 sizeof(uint32_t)); |
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518 copy_to_buf_byte(cache, dest, TRUE, |
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519 offsetof(struct mail_cache_field, type)); |
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520 copy_to_buf_byte(cache, dest, TRUE, |
2342 | 521 offsetof(struct mail_cache_field, decision)); |
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522 |
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523 i_assert(dest->used == sizeof(hdr) + |
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524 (sizeof(uint32_t)*2 + 2) * hdr.fields_count); |
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525 |
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526 /* add existing fields' names */ |
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527 for (i = 0; i < cache->file_fields_count; i++) { |
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528 field = cache->file_field_map[i]; |
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529 name = cache->fields[field].field.name; |
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530 buffer_append(dest, name, strlen(name)+1); |
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531 } |
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532 /* add newly wanted fields' names */ |
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533 for (i = 0; i < cache->fields_count; i++) { |
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534 if (CACHE_FIELD_IS_NEWLY_WANTED(cache, i)) { |
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535 name = cache->fields[i].field.name; |
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536 buffer_append(dest, name, strlen(name)+1); |
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537 } |
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538 } |
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539 |
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540 hdr.size = dest->used; |
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541 buffer_write(dest, 0, &hdr, sizeof(hdr)); |
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542 |
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543 if ((hdr.size & 3) != 0) |
3617
904849549eac
Removed null4 and replaced the few uses of it with buffer_append_zero().
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544 buffer_append_zero(dest, 4 - (hdr.size & 3)); |
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545 } |
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Header caching redesigned. New design allows caching decisions per field, so
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546 |
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547 int mail_cache_header_fields_get_next_offset(struct mail_cache *cache, |
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548 uint32_t *offset_r) |
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549 { |
6704
b0e8403b4bb1
mmap_disable=yes: Find the latest cache field header by pread()ing the file
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550 if (mail_cache_header_fields_get_offset(cache, offset_r, FALSE) < 0) |
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Header caching redesigned. New design allows caching decisions per field, so
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551 return -1; |
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Header caching redesigned. New design allows caching decisions per field, so
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552 |
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Header caching redesigned. New design allows caching decisions per field, so
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553 if (*offset_r == 0) { |
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Header caching redesigned. New design allows caching decisions per field, so
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554 *offset_r = offsetof(struct mail_cache_header, |
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555 field_header_offset); |
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556 } else { |
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Header caching redesigned. New design allows caching decisions per field, so
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557 *offset_r += offsetof(struct mail_cache_header_fields, |
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Header caching redesigned. New design allows caching decisions per field, so
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558 next_offset); |
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Header caching redesigned. New design allows caching decisions per field, so
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559 } |
7d02e2a7672d
Header caching redesigned. New design allows caching decisions per field, so
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560 return 0; |
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Header caching redesigned. New design allows caching decisions per field, so
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561 } |