Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib-storage/index/mbox/mbox-sync-private.h @ 6410:e4eb71ae8e96 HEAD

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Changed .h ifdef/defines to use <NAME>_H format.
author Timo Sirainen <tss@iki.fi>
date Sun, 16 Sep 2007 11:31:27 +0300
parents 5f66277bbe40
children 6a64e64fa3a3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
6410
e4eb71ae8e96 Changed .h ifdef/defines to use <NAME>_H format.
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1 #ifndef MBOX_SYNC_PRIVATE_H
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2 #define MBOX_SYNC_PRIVATE_H
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3
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4 #include "md5.h"
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5 #include "mail-index.h"
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6
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7 #include <sys/stat.h>
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8
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9 enum mbox_sync_flags {
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10 MBOX_SYNC_LAST_COMMIT = 0x01,
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11 MBOX_SYNC_HEADER = 0x02,
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12 MBOX_SYNC_LOCK_READING = 0x04,
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13 MBOX_SYNC_UNDIRTY = 0x08,
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14 MBOX_SYNC_REWRITE = 0x10,
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15 MBOX_SYNC_FORCE_SYNC = 0x20
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16 };
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17
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18 struct mbox_flag_type {
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19 char chr;
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20 enum mail_flags flag;
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21 };
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22
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23 enum header_position {
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24 MBOX_HDR_STATUS,
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25 MBOX_HDR_X_IMAPBASE,
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26 MBOX_HDR_X_KEYWORDS,
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27 MBOX_HDR_X_STATUS,
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28 MBOX_HDR_X_UID,
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29
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30 MBOX_HDR_COUNT
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31 };
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32
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33 /* kludgy. swap MAIL_RECENT with MBOX_NONRECENT_KLUDGE when writing Status
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34 header, because 'O' flag means non-recent but internally we want to use
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35 recent flag. */
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36 #define MBOX_NONRECENT_KLUDGE MAIL_RECENT
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37
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38 #define STATUS_FLAGS_MASK (MAIL_SEEN|MBOX_NONRECENT_KLUDGE)
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39 #define XSTATUS_FLAGS_MASK (MAIL_ANSWERED|MAIL_FLAGGED|MAIL_DRAFT|MAIL_DELETED)
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40 extern struct mbox_flag_type mbox_status_flags[];
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41 extern struct mbox_flag_type mbox_xstatus_flags[];
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42
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43 struct mbox_sync_mail {
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44 /* uid=0 can mean that this mail describes an expunged area or that
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45 this is a pseudo message */
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46 uint32_t uid;
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47 uint32_t idx_seq;
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48
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49 ARRAY_TYPE(keyword_indexes) keywords;
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50 uint8_t flags;
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51
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52 unsigned int uid_broken:1;
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53 unsigned int expunged:1;
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54 unsigned int pseudo:1;
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55
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56 uoff_t from_offset;
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57 uoff_t body_size;
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58
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59 /* following variables have a bit overloaded functionality:
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60
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61 a) space <= 0 : offset points to beginning of headers. space is the
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62 amount of space missing that is required to be able to rewrite
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63 the headers
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64 b) space > 0 : offset points to beginning of whitespace that can
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65 be removed. space is the amount of data that can be removed from
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66 there. note that the message may contain more whitespace
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67 elsewhere. */
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68 uoff_t offset;
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69 off_t space;
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70 };
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71
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72 struct mbox_sync_mail_context {
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73 struct mbox_sync_context *sync_ctx;
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74 struct mbox_sync_mail mail;
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75
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76 uint32_t seq;
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77 uoff_t hdr_offset, body_offset;
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78
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79 size_t header_first_change, header_last_change;
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80 string_t *header;
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81
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82 unsigned char hdr_md5_sum[16];
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83
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84 uoff_t content_length;
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85
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86 size_t hdr_pos[MBOX_HDR_COUNT];
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87 uint32_t parsed_uid, last_uid_updated_value;
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88 unsigned int last_uid_value_start_pos;
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89
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90 unsigned int have_eoh:1;
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91 unsigned int need_rewrite:1;
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92 unsigned int seen_imapbase:1;
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93 unsigned int updated:1;
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94 unsigned int recent:1;
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95 unsigned int dirty:1;
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96 unsigned int imapbase_rewrite:1;
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97 unsigned int imapbase_updated:1;
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98 };
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99
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100 struct mbox_sync_context {
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101 struct mbox_mailbox *mbox;
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102 enum mbox_sync_flags flags;
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103 struct istream *input, *file_input;
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104 int write_fd;
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105
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106 time_t orig_mtime, orig_atime;
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107 uoff_t orig_size;
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108 struct stat last_stat;
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109
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110 struct mail_index_sync_ctx *index_sync_ctx;
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111 struct mail_index_view *sync_view;
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112 struct mail_index_transaction *t;
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113
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114 struct mail_index_header reset_hdr;
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115 const struct mail_index_header *hdr;
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116
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117 string_t *header, *from_line;
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118
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119 /* header state: */
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120 uint32_t base_uid_validity, base_uid_last;
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121 uoff_t base_uid_last_offset;
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122
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123 /* mail state: */
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124 ARRAY_DEFINE(mails, struct mbox_sync_mail);
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125 struct index_sync_changes_context *sync_changes;
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126
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127 /* per-mail pool */
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128 pool_t mail_keyword_pool;
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129 /* used for mails[].keywords */
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130 pool_t saved_keywords_pool;
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131
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132 uint32_t prev_msg_uid, next_uid, idx_next_uid;
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133 uint32_t seq, idx_seq, need_space_seq;
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134 uint32_t last_nonrecent_uid;
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135 off_t expunged_space, space_diff;
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136
16287320d080 Several fixes in space/offset logic. Should be much more robust now.
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137 unsigned int dest_first_mail:1;
4698
8ae46b72a460 Fixes to handling CRLF linefeeds in mboxes.
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138 unsigned int first_mail_crlf_expunged:1;
2827
811945597b6a cleanup
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139
811945597b6a cleanup
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140 /* global flags: */
2662
add94f9aa9e1 Added mbox_lazy_writes setting.
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parents: 2659
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141 unsigned int delay_writes:1;
5203
71e110813d7b If next_uid field gets to 2^31-1, handle it without crashing by creating a
Timo Sirainen <tss@iki.fi>
parents: 5171
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142 unsigned int renumber_uids:1;
5240
117c9fd0b633 Keep track of the mbox dirty state better. Also when moving mails inside
Timo Sirainen <tss@iki.fi>
parents: 5203
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143 unsigned int moved_offsets:1;
5529
fd13f04e1fda Give "mbox file was modified while we were syncing" error only if we detect
Timo Sirainen <tss@iki.fi>
parents: 5374
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144 unsigned int ext_modified:1;
5850
f8caf3c6a5a7 Handle UIDVALIDITY changes by resetting index.
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parents: 5741
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145 unsigned int index_reset:1;
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146 };
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147
3279
b698ae839a18 Moved mbox/maildir-specific variables from struct index_mailbox to
Timo Sirainen <tss@iki.fi>
parents: 3265
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148 int mbox_sync(struct mbox_mailbox *mbox, enum mbox_sync_flags flags);
3863
55df57c028d4 Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents: 3677
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149 int mbox_sync_has_changed(struct mbox_mailbox *mbox, bool leave_dirty);
5529
fd13f04e1fda Give "mbox file was modified while we were syncing" error only if we detect
Timo Sirainen <tss@iki.fi>
parents: 5374
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150 void mbox_sync_set_critical(struct mbox_sync_context *sync_ctx,
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Timo Sirainen <tss@iki.fi>
parents: 5374
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151 const char *fmt, ...) __attr_format__(2, 3);
2190
755ec9442a58 mailbox_save() and mailbox_copy() functions can now return the saved mail so
Timo Sirainen <tss@iki.fi>
parents: 2164
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152
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parents:
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153 void mbox_sync_parse_next_mail(struct istream *input,
2214
c0b5573d76e3 fixes for From-line offset updating
Timo Sirainen <tss@iki.fi>
parents: 2211
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154 struct mbox_sync_mail_context *ctx);
6277
5f66277bbe40 mail_index_lookup*() can't fail anymore. Changed several APIs not to return
Timo Sirainen <tss@iki.fi>
parents: 6038
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155 bool mbox_sync_parse_match_mail(struct mbox_mailbox *mbox,
5f66277bbe40 mail_index_lookup*() can't fail anymore. Changed several APIs not to return
Timo Sirainen <tss@iki.fi>
parents: 6038
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156 struct mail_index_view *view, uint32_t seq);
2512
abcdec2299bd When mbox syncing is dirty, read the message headers to verify that we've
Timo Sirainen <tss@iki.fi>
parents: 2511
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157
3254
a2943c050571 Keywords are now stored in X-Keywords headers in mbox. Did several related
Timo Sirainen <tss@iki.fi>
parents: 3250
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158 void mbox_sync_update_header(struct mbox_sync_mail_context *ctx);
1981
eb282832fc75 mbox rewriting is almost working - the hard part is done.
Timo Sirainen <tss@iki.fi>
parents: 1978
diff changeset
159 void mbox_sync_update_header_from(struct mbox_sync_mail_context *ctx,
eb282832fc75 mbox rewriting is almost working - the hard part is done.
Timo Sirainen <tss@iki.fi>
parents: 1978
diff changeset
160 const struct mbox_sync_mail *mail);
2687
482e1a1fe2ce Bringing some sanity into mbox rewrites. Fixes expunge crashes and reduces
Timo Sirainen <tss@iki.fi>
parents: 2665
diff changeset
161 int mbox_sync_try_rewrite(struct mbox_sync_mail_context *ctx, off_t move_diff);
482e1a1fe2ce Bringing some sanity into mbox rewrites. Fixes expunge crashes and reduces
Timo Sirainen <tss@iki.fi>
parents: 2665
diff changeset
162 int mbox_sync_rewrite(struct mbox_sync_context *sync_ctx,
3677
6f58deb34e8a When rewriting mbox, don't parse the last message again. We already have its
Timo Sirainen <tss@iki.fi>
parents: 3519
diff changeset
163 struct mbox_sync_mail_context *mail_ctx,
2743
2cada6a7f3eb If rewriting began with expunged data areas, we didn't overwrite them which
Timo Sirainen <tss@iki.fi>
parents: 2687
diff changeset
164 uoff_t end_offset, off_t move_diff, uoff_t extra_space,
2164
Timo Sirainen <tss@iki.fi>
parents: 2161
diff changeset
165 uint32_t first_seq, uint32_t last_seq);
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parents:
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166
2155
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parents: 2151
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167 int mbox_sync_seek(struct mbox_sync_context *sync_ctx, uoff_t from_offset);
5529
fd13f04e1fda Give "mbox file was modified while we were syncing" error only if we detect
Timo Sirainen <tss@iki.fi>
parents: 5374
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168 void mbox_sync_file_update_ext_modified(struct mbox_sync_context *sync_ctx);
5374
d217ad85984c Check if mbox has been modified externally before doing any dangerous
Timo Sirainen <tss@iki.fi>
parents: 5301
diff changeset
169 void mbox_sync_file_updated(struct mbox_sync_context *sync_ctx, bool dirty);
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parents:
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170 int mbox_move(struct mbox_sync_context *sync_ctx,
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parents:
diff changeset
171 uoff_t dest, uoff_t source, uoff_t size);
2249
cb4dad60f6cd Several fixes for updating mbox. Recent changes also made it corrupt
Timo Sirainen <tss@iki.fi>
parents: 2242
diff changeset
172 void mbox_sync_move_buffer(struct mbox_sync_mail_context *ctx,
cb4dad60f6cd Several fixes for updating mbox. Recent changes also made it corrupt
Timo Sirainen <tss@iki.fi>
parents: 2242
diff changeset
173 size_t pos, size_t need, size_t have);
3254
a2943c050571 Keywords are now stored in X-Keywords headers in mbox. Did several related
Timo Sirainen <tss@iki.fi>
parents: 3250
diff changeset
174 void mbox_sync_headers_add_space(struct mbox_sync_mail_context *ctx,
a2943c050571 Keywords are now stored in X-Keywords headers in mbox. Did several related
Timo Sirainen <tss@iki.fi>
parents: 3250
diff changeset
175 size_t size);
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parents:
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176
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parents:
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177 #endif