Mercurial > dovecot > original-hg > dovecot-1.2
view src/lib-storage/index/index-fetch.c @ 9354:687ac828b964 HEAD
lib-index: modseqs weren't tracked properly within session when changes were done.
author | Timo Sirainen <tss@iki.fi> |
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date | Tue, 01 Sep 2009 13:05:03 -0400 |
parents | 4e031f3d9083 |
children | 00cd9aacd03c |
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/* Copyright (c) 2002-2009 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "array.h" #include "mail-index-modseq.h" #include "index-storage.h" #include "index-mail.h" void index_storage_get_seq_range(struct mailbox *box, uint32_t uid1, uint32_t uid2, uint32_t *seq1_r, uint32_t *seq2_r) { struct index_mailbox *ibox = (struct index_mailbox *)box; mail_index_lookup_seq_range(ibox->view, uid1, uid2, seq1_r, seq2_r); } void index_storage_get_uid_range(struct mailbox *box, const ARRAY_TYPE(seq_range) *seqs, ARRAY_TYPE(seq_range) *uids) { struct index_mailbox *ibox = (struct index_mailbox *)box; const struct seq_range *range; unsigned int i, count; uint32_t seq, uid; range = array_get(seqs, &count); for (i = 0; i < count; i++) { if (range[i].seq2 == (uint32_t)-1) { i_assert(count == i-1); mail_index_lookup_uid(ibox->view, range[i].seq1, &uid); seq_range_array_add_range(uids, uid, (uint32_t)-1); break; } for (seq = range[i].seq1; seq <= range[i].seq2; seq++) { mail_index_lookup_uid(ibox->view, seq, &uid); seq_range_array_add(uids, 0, uid); } } } static void add_expunges(ARRAY_TYPE(seq_range) *expunged_uids, const struct mail_transaction_expunge *src, size_t src_size) { const struct mail_transaction_expunge *end; end = src + src_size / sizeof(*src); for (; src != end; src++) seq_range_array_add_range(expunged_uids, src->uid1, src->uid2); } static void add_guid_expunges(ARRAY_TYPE(seq_range) *expunged_uids, const struct mail_transaction_expunge_guid *src, size_t src_size, const ARRAY_TYPE(seq_range) *uids_filter) { const struct mail_transaction_expunge_guid *end; end = src + src_size / sizeof(*src); for (; src != end; src++) { if (seq_range_exists(uids_filter, src->uid)) seq_range_array_add(expunged_uids, 0, src->uid); } } bool index_storage_get_expunged_uids(struct mailbox *box, uint64_t modseq, const ARRAY_TYPE(seq_range) *uids, ARRAY_TYPE(seq_range) *expunged_uids) { struct index_mailbox *ibox = (struct index_mailbox *)box; struct mail_transaction_log_view *log_view; const struct mail_transaction_header *thdr; const void *tdata; uint32_t log_seq; uoff_t log_offset; bool reset; if (!mail_index_modseq_get_next_log_offset(ibox->view, modseq, &log_seq, &log_offset)) return FALSE; if (log_seq > ibox->view->log_file_head_seq || (log_seq == ibox->view->log_file_head_seq && log_offset >= ibox->view->log_file_head_offset)) { /* we haven't seen this high expunges at all */ return TRUE; } log_view = mail_transaction_log_view_open(ibox->index->log); if (mail_transaction_log_view_set(log_view, log_seq, log_offset, ibox->view->log_file_head_seq, ibox->view->log_file_head_offset, &reset) <= 0) { mail_transaction_log_view_close(&log_view); return FALSE; } /* do only minimal range checks while adding the UIDs. */ while (mail_transaction_log_view_next(log_view, &thdr, &tdata) > 0) { if ((thdr->type & MAIL_TRANSACTION_EXTERNAL) == 0) { /* skip expunge requests */ continue; } switch (thdr->type & MAIL_TRANSACTION_TYPE_MASK) { case MAIL_TRANSACTION_EXPUNGE: add_expunges(expunged_uids, tdata, thdr->size); break; case MAIL_TRANSACTION_EXPUNGE_GUID: add_guid_expunges(expunged_uids, tdata, thdr->size, uids); break; } } /* remove UIDs not in the wanted UIDs range */ seq_range_array_intersect(expunged_uids, uids); mail_transaction_log_view_close(&log_view); return TRUE; }