Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib-storage/index/cydir/cydir-sync.c @ 6332:aa4a78b3c626 HEAD

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Renamed mail_index_sync_begin() to mail_index_sync_begin_to() and added a new mail_index_sync_begin() without seq/offset parameters.
author Timo Sirainen <tss@iki.fi>
date Wed, 29 Aug 2007 22:58:27 +0300
parents ce83635191d4
children 65c69a53a7be
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Copyright (C) 2007 Timo Sirainen */
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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 "str.h"
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6 #include "cydir-storage.h"
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7 #include "cydir-sync.h"
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8
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9 static void cydir_sync_set_uidvalidity(struct cydir_sync_context *ctx)
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10 {
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11 uint32_t uid_validity = ioloop_time;
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12
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13 mail_index_update_header(ctx->trans,
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14 offsetof(struct mail_index_header, uid_validity),
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15 &uid_validity, sizeof(uid_validity), TRUE);
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16 ctx->uid_validity = uid_validity;
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17 }
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18
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19 static string_t *cydir_get_path_prefix(struct cydir_mailbox *mbox)
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20 {
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21 string_t *path = str_new(default_pool, 256);
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22 const char *dir;
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23
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24 dir = mailbox_list_get_path(mbox->storage->storage.list,
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25 mbox->ibox.box.name,
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26 MAILBOX_LIST_PATH_TYPE_MAILBOX);
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27 str_append(path, dir);
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28 str_append_c(path, '/');
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29 return path;
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30 }
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31
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32 static void
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33 cydir_sync_expunge(struct cydir_sync_context *ctx, uint32_t seq1, uint32_t seq2)
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34 {
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35 struct mailbox *box = &ctx->mbox->ibox.box;
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36 uint32_t uid;
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37
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38 if (ctx->path == NULL) {
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39 ctx->path = cydir_get_path_prefix(ctx->mbox);
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40 ctx->path_dir_prefix_len = str_len(ctx->path);
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41 }
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42
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43 for (; seq1 <= seq2; seq1++) {
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44 mail_index_lookup_uid(ctx->sync_view, seq1, &uid);
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45
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46 str_truncate(ctx->path, ctx->path_dir_prefix_len);
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47 str_printfa(ctx->path, "%u.", uid);
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48 if (unlink(str_c(ctx->path)) == 0) {
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49 if (box->v.sync_notify != NULL) {
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50 box->v.sync_notify(box, uid,
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51 MAILBOX_SYNC_TYPE_EXPUNGE);
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52 }
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53 mail_index_expunge(ctx->trans, seq1);
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54 } else if (errno != ENOENT) {
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55 mail_storage_set_critical(&ctx->mbox->storage->storage,
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56 "unlink(%s) failed: %m", str_c(ctx->path));
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57 /* continue anyway */
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58 }
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59 }
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60 }
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61
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62 static void cydir_sync_index(struct cydir_sync_context *ctx)
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63 {
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64 struct mailbox *box = &ctx->mbox->ibox.box;
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65 const struct mail_index_header *hdr;
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66 struct mail_index_sync_rec sync_rec;
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67 uint32_t seq1, seq2;
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68
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69 hdr = mail_index_get_header(ctx->sync_view);
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70 if (hdr->uid_validity != 0)
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71 ctx->uid_validity = hdr->uid_validity;
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72 else
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73 cydir_sync_set_uidvalidity(ctx);
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74
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75 /* mark the newly seen messages as recent */
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76 mail_index_lookup_uid_range(ctx->sync_view, hdr->first_recent_uid,
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77 hdr->next_uid, &seq1, &seq2);
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78 if (seq1 != 0) {
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79 index_mailbox_set_recent_seq(&ctx->mbox->ibox, ctx->sync_view,
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80 seq1, seq2);
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81 }
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82
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83 while (mail_index_sync_next(ctx->index_sync_ctx, &sync_rec)) {
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84 mail_index_lookup_uid_range(ctx->sync_view,
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85 sync_rec.uid1, sync_rec.uid2,
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86 &seq1, &seq2);
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87 if (seq1 == 0) {
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88 /* already expunged, nothing to do. */
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89 continue;
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90 }
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91
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92 switch (sync_rec.type) {
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93 case MAIL_INDEX_SYNC_TYPE_APPEND:
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94 /* don't care */
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95 break;
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96 case MAIL_INDEX_SYNC_TYPE_EXPUNGE:
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97 cydir_sync_expunge(ctx, seq1, seq2);
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98 break;
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99 case MAIL_INDEX_SYNC_TYPE_FLAGS:
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100 case MAIL_INDEX_SYNC_TYPE_KEYWORD_ADD:
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101 case MAIL_INDEX_SYNC_TYPE_KEYWORD_REMOVE:
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102 case MAIL_INDEX_SYNC_TYPE_KEYWORD_RESET:
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103 /* FIXME: should be bother calling sync_notify()? */
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104 break;
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105 }
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106 }
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107
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108 if (box->v.sync_notify != NULL)
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109 box->v.sync_notify(box, 0, 0);
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110 }
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111
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112 int cydir_sync_begin(struct cydir_mailbox *mbox,
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113 struct cydir_sync_context **ctx_r)
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114 {
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115 struct cydir_sync_context *ctx;
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116 enum mail_index_sync_flags sync_flags;
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117
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118 ctx = i_new(struct cydir_sync_context, 1);
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119 ctx->mbox = mbox;
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120
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121 sync_flags = MAIL_INDEX_SYNC_FLAG_FLUSH_DIRTY;
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122 if (!mbox->ibox.keep_recent)
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123 sync_flags |= MAIL_INDEX_SYNC_FLAG_DROP_RECENT;
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124
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125 if (mail_index_sync_begin(mbox->ibox.index, &ctx->index_sync_ctx,
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126 &ctx->sync_view, &ctx->trans,
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127 sync_flags) < 0) {
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128 mail_storage_set_index_error(&mbox->ibox);
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129 i_free(ctx);
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130 return -1;
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131 }
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132
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133 cydir_sync_index(ctx);
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134 *ctx_r = ctx;
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135 return 0;
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136 }
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137
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138 int cydir_sync_finish(struct cydir_sync_context **_ctx, bool success)
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139 {
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140 struct cydir_sync_context *ctx = *_ctx;
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141 int ret = success ? 0 : -1;
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142
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143 *_ctx = NULL;
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144 if (success) {
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145 if (mail_index_sync_commit(&ctx->index_sync_ctx) < 0) {
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146 mail_storage_set_index_error(&ctx->mbox->ibox);
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147 ret = -1;
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148 }
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149 } else {
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150 mail_index_sync_rollback(&ctx->index_sync_ctx);
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151 }
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152 if (ctx->path != NULL)
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153 str_free(&ctx->path);
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154 i_free(ctx);
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155 return 0;
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156 }
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157
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158 int cydir_sync(struct cydir_mailbox *mbox)
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159 {
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160 struct cydir_sync_context *sync_ctx;
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161
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162 if (cydir_sync_begin(mbox, &sync_ctx) < 0)
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163 return -1;
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164
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165 return cydir_sync_finish(&sync_ctx, TRUE);
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166 }
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167
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168 struct mailbox_sync_context *
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169 cydir_storage_sync_init(struct mailbox *box, enum mailbox_sync_flags flags)
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170 {
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171 struct cydir_mailbox *mbox = (struct cydir_mailbox *)box;
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172 int ret = 0;
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173
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174 if (!box->opened)
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175 index_storage_mailbox_open(&mbox->ibox);
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176
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177 if ((flags & MAILBOX_SYNC_FLAG_FAST) == 0 ||
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178 mbox->ibox.sync_last_check + MAILBOX_FULL_SYNC_INTERVAL <=
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179 ioloop_time)
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180 ret = cydir_sync(mbox);
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181
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182 return index_mailbox_sync_init(box, flags, ret < 0);
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183 }