mail-index-view-sync.c revision b032dc80e358f09893f09999f172ff12f5dbbb8e
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen/* Copyright (C) 2003-2004 Timo Sirainen */
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen array_t ARRAY_DEFINE(expunges, struct mail_transaction_expunge);
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainenmail_transaction_log_sort_expunges(array_t *expunges,
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen ARRAY_SET_TYPE(expunges, struct mail_transaction_expunge);
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen const struct mail_transaction_expunge *src_end;
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen /* @UNSAFE */
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen dest = array_get_modifyable(expunges, &dest_count);
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen array_append(expunges, src, src_size / sizeof(*src));
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen /* src[] must be sorted. */
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen i_assert(src+1 == src_end || src->uid2 < src[1].uid1);
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen for (; i < dest_count; i++) {
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen while (i < dest_count && src->uid2 >= dest[i].uid1-1) {
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen /* we can/must merge with next record */
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen if (first > 0 && new_exp.uid1 <= dest[first-1].uid2+1) {
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen /* continue previous record */
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen } else if (i == first) {
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen dest = array_get_modifyable(expunges, &dest_count);
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen /* use next record */
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen dest = array_get_modifyable(expunges, &dest_count);
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainenview_sync_get_expunges(struct mail_index_view *view, array_t *expunges_r)
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen ARRAY_SET_TYPE(expunges_r, struct mail_transaction_expunge);
659fe5d24825b160cae512538088020d97a60239Timo Sirainen struct mail_transaction_expunge *src, *src_end, *dest;
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen unsigned int count;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (mail_transaction_log_view_set(view->log_view,
659fe5d24825b160cae512538088020d97a60239Timo Sirainen while ((ret = mail_transaction_log_view_next(view->log_view,
7b3bf1de3fa7eee2185d1e404812b50c295e2b93Timo Sirainen i_assert((hdr->type & MAIL_TRANSACTION_EXPUNGE) != 0);
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen mail_transaction_log_sort_expunges(expunges_r, data, hdr->size);
7b3bf1de3fa7eee2185d1e404812b50c295e2b93Timo Sirainen /* convert to sequences */
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen src = dest = array_get_modifyable(expunges_r, &count);
7b3bf1de3fa7eee2185d1e404812b50c295e2b93Timo Sirainen ret = mail_index_lookup_uid_range(view, src->uid1,
b032dc80e358f09893f09999f172ff12f5dbbb8eTimo Sirainen array_delete(expunges_r, count, array_count(expunges_r) - count);
d6f50f100ce17fa4b3a89e9567a5ff993b38b872Timo Sirainen (MAIL_TRANSACTION_EXPUNGE | MAIL_TRANSACTION_APPEND | \
26ff8f8a4867bf8e9551a27a2de8c12cd138b065Timo Sirainen MAIL_TRANSACTION_FLAG_UPDATE | MAIL_TRANSACTION_KEYWORD_UPDATE | \
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenint mail_index_view_sync_begin(struct mail_index_view *view,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* We must sync flags as long as view is mmap()ed, as the flags may
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen have already changed under us. */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_assert((sync_mask & MAIL_INDEX_SYNC_TYPE_FLAGS) != 0);
31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen if (mail_index_view_lock_head(view, TRUE) < 0)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if ((sync_mask & MAIL_INDEX_SYNC_TYPE_EXPUNGE) != 0) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* get list of all expunges first */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (view_sync_get_expunges(view, &expunges) < 0)
bcf5af3335a814e4923ba1bf2e0d80eb6dabfb22Timo Sirainen /* only flags, appends and expunges can be left to be synced later */
bcf5af3335a814e4923ba1bf2e0d80eb6dabfb22Timo Sirainen want_mask = mail_transaction_type_mask_get(sync_mask);
d6f50f100ce17fa4b3a89e9567a5ff993b38b872Timo Sirainen i_assert((want_mask & ~MAIL_INDEX_VIEW_VISIBLE_SYNC_MASK) == 0);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (mail_transaction_log_view_set(view->log_view,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen ctx = i_new(struct mail_index_view_sync_ctx, 1);
5626ae5e3316eced244adb6485c0927f1c7fdc41Timo Sirainen mail_index_sync_map_init(&ctx->sync_map_ctx, view,
df4018ae2f0a95be602f724ca70df7e0e3bd6a7dTimo Sirainen if ((sync_mask & MAIL_INDEX_SYNC_TYPE_EXPUNGE) != 0 &&
df4018ae2f0a95be602f724ca70df7e0e3bd6a7dTimo Sirainen (sync_mask & MAIL_INDEX_SYNC_TYPE_APPEND) != 0) {
e06c0b65c16ccce69bbee009ead14d7d3d17a256Timo Sirainen /* keep the old mapping without expunges until we're
e06c0b65c16ccce69bbee009ead14d7d3d17a256Timo Sirainen fully synced */
5a58037ad75b88356d82240fab2bc604de03107eTimo Sirainen /* we need a private copy of the map if we don't want to
bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen sync expunges. we need to sync mapping only if we're not
bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen using the latest one. */
1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen uint32_t old_records_count = view->map->records_count;
df4018ae2f0a95be602f724ca70df7e0e3bd6a7dTimo Sirainen view->map->records_count = view->hdr.messages_count;
1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen if (map->hdr_base != map->hdr_copy_buf->data) {
1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen buffer_append(map->hdr_copy_buf, map->hdr_base,
1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen /* start from our old view's header. */
20c26f4fcf9ef87434761829cc209c2f84ff5716Timo Sirainen i_assert(map->records_count == map->hdr.messages_count);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenstatic int view_is_transaction_synced(struct mail_index_view *view,
7b3bf1de3fa7eee2185d1e404812b50c295e2b93Timo Sirainen const struct mail_index_view_log_sync_pos *pos, *end;
7b3bf1de3fa7eee2185d1e404812b50c295e2b93Timo Sirainen pos = buffer_get_data(view->log_syncs, &size);
7b3bf1de3fa7eee2185d1e404812b50c295e2b93Timo Sirainen if (pos->log_file_offset == offset && pos->log_file_seq == seq)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenstatic int mail_index_view_sync_next_trans(struct mail_index_view_sync_ctx *ctx,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen struct mail_transaction_log_view *log_view = ctx->view->log_view;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen ret = mail_transaction_log_view_next(log_view, &ctx->hdr, &ctx->data,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen mail_transaction_log_view_get_prev_pos(log_view, seq_r, offset_r);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* skip flag changes that we committed ourself or have already synced */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (view_is_transaction_synced(view, *seq_r, *offset_r))
e06c0b65c16ccce69bbee009ead14d7d3d17a256Timo Sirainen /* expunges have to be synced afterwards so that caller can still get
e06c0b65c16ccce69bbee009ead14d7d3d17a256Timo Sirainen information of the messages. otherwise caller most likely wants to
e06c0b65c16ccce69bbee009ead14d7d3d17a256Timo Sirainen see only updated information. */
e06c0b65c16ccce69bbee009ead14d7d3d17a256Timo Sirainen (ctx->hdr->type & MAIL_TRANSACTION_EXPUNGE) == 0) {
56561d472db25ebda35ae6afdc7f7deb75c323fcTimo Sirainen if (mail_index_sync_record(&ctx->sync_map_ctx, ctx->hdr,
bcf5af3335a814e4923ba1bf2e0d80eb6dabfb22Timo Sirainen if ((ctx->hdr->type & ctx->trans_sync_mask) == 0)
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen ~(MAIL_INDEX_MAIL_FLAG_DIRTY | MAIL_RECENT)) == 0)
d67f54632110cfb6aafe2d7cd1f99b031c0b208aTimo Sirainenmail_index_view_sync_get_rec(struct mail_index_view_sync_ctx *ctx,
d67f54632110cfb6aafe2d7cd1f99b031c0b208aTimo Sirainen const struct mail_transaction_header *hdr = ctx->hdr;
d67f54632110cfb6aafe2d7cd1f99b031c0b208aTimo Sirainen switch (hdr->type & MAIL_TRANSACTION_TYPE_MASK) {
d67f54632110cfb6aafe2d7cd1f99b031c0b208aTimo Sirainen const struct mail_transaction_flag_update *update =
d0143523a87b41eae0b118ff03aad539903b3555Timo Sirainen update = CONST_PTR_OFFSET(data, ctx->data_offset);
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen const struct mail_transaction_keyword_update *update = data;
faed8babca9914257f34fb2e603d74016d563b2dTimo Sirainen ctx->data_offset = sizeof(*update) + update->name_size;
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen ctx->data_offset += 4 - (ctx->data_offset % 4);
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen uids = CONST_PTR_OFFSET(data, ctx->data_offset);
26ff8f8a4867bf8e9551a27a2de8c12cd138b065Timo Sirainen /* FIXME: this isn't exactly correct.. but no-one cares? */
26ff8f8a4867bf8e9551a27a2de8c12cd138b065Timo Sirainen const struct mail_transaction_keyword_reset *reset =
26ff8f8a4867bf8e9551a27a2de8c12cd138b065Timo Sirainen rec->type = MAIL_INDEX_SYNC_TYPE_KEYWORD_RESET;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenint mail_index_view_sync_next(struct mail_index_view_sync_ctx *ctx,
b35f7104715edee0cfac6d46ab0b342033867eb7Timo Sirainen if (ctx->hdr == NULL || ctx->data_offset == ctx->hdr->size) {
b35f7104715edee0cfac6d46ab0b342033867eb7Timo Sirainen ret = mail_index_view_sync_next_trans(ctx, &seq,
b35f7104715edee0cfac6d46ab0b342033867eb7Timo Sirainen } while (ret == 0);
b35f7104715edee0cfac6d46ab0b342033867eb7Timo Sirainen } while (!mail_index_view_sync_get_rec(ctx, sync_rec));
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenmail_index_view_sync_get_expunges(struct mail_index_view_sync_ctx *ctx,
9d3ccd79130199ffdb19a688027d49bf20a4aaaaTimo Sirainen unsigned int *count_r)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenvoid mail_index_view_sync_end(struct mail_index_view_sync_ctx *ctx)
e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen mail_index_sync_map_deinit(&ctx->sync_map_ctx);
bcf5af3335a814e4923ba1bf2e0d80eb6dabfb22Timo Sirainen if (view->log_syncs != NULL && !ctx->skipped_some)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* we didn't sync everything */
a24f6b02ed8d0dde933a715be1c86f01977bf610Timo Sirainen (void)mail_transaction_log_view_set(view->log_view,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenvoid mail_index_view_add_synced_transaction(struct mail_index_view *view,
4b058f90f9e8a2c6b2eed275de4eb8cc5195a71dTimo Sirainen view->log_syncs = buffer_create_dynamic(default_pool, 128);