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/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "mbox-storage.h"
#include "mbox-sync-private.h"
static unsigned int
mbox_list_get_ext_id(struct mbox_mailbox *mbox,
struct mail_index_view *view)
{
if (mbox->mbox_list_index_ext_id == (uint32_t)-1) {
mbox->mbox_list_index_ext_id =
mail_index_ext_register(mail_index_view_get_index(view),
"mbox", 0,
sizeof(struct mbox_list_index_record),
sizeof(uint32_t));
}
return mbox->mbox_list_index_ext_id;
}
int mbox_list_index_has_changed(struct mailbox *box,
struct mail_index_view *list_view,
uint32_t seq, bool quick, const char **reason_r)
{
struct mbox_mailbox *mbox = MBOX_MAILBOX(box);
const struct mbox_list_index_record *rec;
const void *data;
const char *path;
struct stat st;
uint32_t ext_id;
bool expunged;
int ret;
ret = index_storage_list_index_has_changed(box, list_view, seq,
quick, reason_r);
if (ret != 0 || box->storage->set->mailbox_list_index_very_dirty_syncs)
return ret;
ext_id = mbox_list_get_ext_id(mbox, list_view);
mail_index_lookup_ext(list_view, seq, ext_id, &data, &expunged);
rec = data;
if (rec == NULL) {
*reason_r = "mbox record is missing";
return 1;
} else if (expunged) {
*reason_r = "mbox record is expunged";
return 1;
} else if (rec->mtime == 0) {
/* not synced */
*reason_r = "mbox record mtime=0";
return 1;
}
ret = mailbox_get_path_to(box, MAILBOX_LIST_PATH_TYPE_MAILBOX, &path);
if (ret < 0)
return ret;
i_assert(ret > 0);
if (stat(path, &st) < 0) {
mailbox_set_critical(box, "stat(%s) failed: %m", path);
return -1;
}
if ((time_t)rec->mtime != st.st_mtime) {
*reason_r = t_strdup_printf(
"mbox record mtime changed %u != %"PRIdTIME_T,
rec->mtime, st.st_mtime);
return 1;
}
uint32_t new_size = (uint32_t)(st.st_size & 0xffffffffU);
if (rec->size != new_size) {
*reason_r = t_strdup_printf("mbox record size changed %u != %u",
rec->size, new_size);
return 1;
}
return 0;
}
void mbox_list_index_update_sync(struct mailbox *box,
struct mail_index_transaction *trans,
uint32_t seq)
{
struct mbox_mailbox *mbox = MBOX_MAILBOX(box);
struct mail_index_view *list_view;
const struct mbox_index_header *mhdr = &mbox->mbox_hdr;
const struct mbox_list_index_record *old_rec;
struct mbox_list_index_record new_rec;
const void *data;
uint32_t ext_id;
bool expunged;
index_storage_list_index_update_sync(box, trans, seq);
/* get the current record */
list_view = mail_index_transaction_get_view(trans);
ext_id = mbox_list_get_ext_id(mbox, list_view);
mail_index_lookup_ext(list_view, seq, ext_id, &data, &expunged);
if (expunged)
return;
old_rec = data;
i_zero(&new_rec);
new_rec.mtime = mhdr->sync_mtime;
new_rec.size = mhdr->sync_size & 0xffffffffU;
if (old_rec == NULL ||
memcmp(old_rec, &new_rec, sizeof(*old_rec)) != 0)
mail_index_update_ext(trans, seq, ext_id, &new_rec, NULL);
}
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