Mercurial > dovecot > core-2.2

annotate src/lib-storage/index/dbox-common/dbox-sync-rebuild.c @ 10660:56b1d4dd9c7d HEAD

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lib-storage: *_mailboxes don't descend from index_mailbox anymore, it's now a context.
author Timo Sirainen <tss@iki.fi>
date Sun, 07 Feb 2010 17:30:24 +0200
parents e7f066508299
children 93fe3aa23bdb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10582
615eef3139c2 Updated copyright notices to include year 2010.
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1 /* Copyright (c) 2007-2010 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 "index-storage.h"
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6 #include "dbox-storage.h"
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7 #include "dbox-sync-rebuild.h"
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8
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9 static void
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10 dbox_sync_index_copy_cache(struct dbox_sync_rebuild_context *ctx,
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11 struct mail_index_view *view,
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12 uint32_t old_seq, uint32_t new_seq)
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13 {
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14 struct mail_index_map *map;
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15 const void *data;
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16 uint32_t reset_id;
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17 bool expunged;
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18
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19 if (ctx->cache_ext_id == (uint32_t)-1)
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20 return;
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21
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22 mail_index_lookup_ext_full(view, old_seq, ctx->cache_ext_id,
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23 &map, &data, &expunged);
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24 if (expunged)
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25 return;
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26
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27 if (!mail_index_ext_get_reset_id(view, map, ctx->cache_ext_id,
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28 &reset_id) || reset_id == 0)
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29 return;
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30
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31 if (!ctx->cache_used) {
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32 /* set reset id */
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33 ctx->cache_used = TRUE;
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34 ctx->cache_reset_id = reset_id;
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35 mail_index_ext_reset(ctx->trans, ctx->cache_ext_id,
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36 ctx->cache_reset_id, TRUE);
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37 }
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38 if (ctx->cache_reset_id == reset_id) {
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39 mail_index_update_ext(ctx->trans, new_seq,
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40 ctx->cache_ext_id, data, NULL);
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41 }
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42 }
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43
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44 static void
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45 dbox_sync_index_copy_from_old(struct dbox_sync_rebuild_context *ctx,
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46 struct mail_index_view *view,
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47 uint32_t old_seq, uint32_t new_seq)
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48 {
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49 struct mail_index *index = mail_index_view_get_index(view);
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50 const struct mail_index_record *rec;
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51 ARRAY_TYPE(keyword_indexes) old_keywords;
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52 struct mail_keywords *kw;
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53
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54 /* copy flags */
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55 rec = mail_index_lookup(view, old_seq);
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56 mail_index_update_flags(ctx->trans, new_seq,
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57 MODIFY_REPLACE, rec->flags);
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58
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59 /* copy keywords */
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60 t_array_init(&old_keywords, 32);
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61 mail_index_lookup_keywords(view, old_seq, &old_keywords);
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62 kw = mail_index_keywords_create_from_indexes(index, &old_keywords);
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63 mail_index_update_keywords(ctx->trans, new_seq, MODIFY_REPLACE, kw);
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64 mail_index_keywords_unref(&kw);
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65
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66 dbox_sync_index_copy_cache(ctx, view, old_seq, new_seq);
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67 }
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68
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69 void dbox_sync_rebuild_index_metadata(struct dbox_sync_rebuild_context *ctx,
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70 uint32_t new_seq, uint32_t uid)
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71 {
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72 uint32_t old_seq;
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73
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74 if (mail_index_lookup_seq(ctx->view, uid, &old_seq)) {
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75 /* the message exists in the old index.
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76 copy the metadata from it. */
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77 dbox_sync_index_copy_from_old(ctx, ctx->view, old_seq, new_seq);
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78 } else if (ctx->backup_view != NULL &&
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79 mail_index_lookup_seq(ctx->backup_view, uid, &old_seq)) {
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80 /* copy the metadata from backup index. */
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81 dbox_sync_index_copy_from_old(ctx, ctx->backup_view,
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82 old_seq, new_seq);
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83 }
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84 }
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85
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86 struct dbox_sync_rebuild_context *
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87 dbox_sync_index_rebuild_init(struct mailbox *box,
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88 struct mail_index_view *view,
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89 struct mail_index_transaction *trans)
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90 {
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91 struct dbox_sync_rebuild_context *ctx;
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92 const char *index_dir;
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93 enum mail_index_open_flags open_flags = MAIL_INDEX_OPEN_FLAG_READONLY;
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94
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95 ctx = i_new(struct dbox_sync_rebuild_context, 1);
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96 ctx->box = box;
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97 ctx->view = view;
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98 ctx->trans = trans;
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99 mail_index_reset(ctx->trans);
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100 index_mailbox_reset_uidvalidity(box);
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101 mail_index_ext_lookup(box->index, "cache", &ctx->cache_ext_id);
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102
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103 /* if backup index file exists, try to use it */
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104 index_dir = mailbox_list_get_path(box->list, box->name,
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105 MAILBOX_LIST_PATH_TYPE_INDEX);
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106 ctx->backup_index =
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107 mail_index_alloc(index_dir, DBOX_INDEX_PREFIX".backup");
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108
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109 #ifndef MMAP_CONFLICTS_WRITE
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110 if (box->storage->set->mmap_disable)
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111 #endif
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112 open_flags |= MAIL_INDEX_OPEN_FLAG_MMAP_DISABLE;
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113 if (mail_index_open(ctx->backup_index, open_flags,
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114 box->storage->set->parsed_lock_method) <= 0)
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115 mail_index_free(&ctx->backup_index);
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116 else
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117 ctx->backup_view = mail_index_view_open(ctx->backup_index);
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118 return ctx;
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119 }
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120
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121 void dbox_sync_index_rebuild_deinit(struct dbox_sync_rebuild_context **_ctx)
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122 {
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123 struct dbox_sync_rebuild_context *ctx = *_ctx;
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124
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125 *_ctx = NULL;
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126 if (ctx->backup_index != NULL) {
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127 mail_index_view_close(&ctx->backup_view);
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128 mail_index_free(&ctx->backup_index);
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129 }
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130 i_free(ctx);
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131 }