static bool imapc_mail_get_cached_guid(struct mail *_mail)
{
struct index_mail *imail = (struct index_mail *)_mail;
const enum index_cache_field cache_idx =
imail->ibox->cache_fields[MAIL_CACHE_GUID].idx;
string_t *str;
if (imail->data.guid != NULL) {
if (mail_cache_field_can_add(_mail->transaction->cache_trans,
_mail->seq, cache_idx)) {
/* GUID was prefetched - add to cache */
index_mail_cache_add_idx(imail, cache_idx,
imail->data.guid, strlen(imail->data.guid)+1);
}
return TRUE;
}
str = str_new(imail->mail.data_pool, 64);
if (mail_cache_lookup_field(_mail->transaction->cache_view,
str, imail->mail.mail.seq, cache_idx) > 0) {
imail->data.guid = str_c(str);
return TRUE;
}
return FALSE;
}
static int
dbox_get_cached_metadata(struct dbox_mail *mail, enum dbox_metadata_key key,
enum index_cache_field cache_field,
const char **value_r)
{
struct index_mail *imail = &mail->imail;
struct index_mailbox_context *ibox =
INDEX_STORAGE_CONTEXT(imail->mail.mail.box);
const char *value;
string_t *str;
uint32_t order;
str = str_new(imail->mail.data_pool, 64);
if (mail_cache_lookup_field(imail->mail.mail.transaction->cache_view,
str, imail->mail.mail.seq,
ibox->cache_fields[cache_field].idx) > 0) {
if (cache_field == MAIL_CACHE_POP3_ORDER) {
i_assert(str_len(str) == sizeof(order));
memcpy(&order, str_data(str), sizeof(order));
str_truncate(str, 0);
if (order != 0)
str_printfa(str, "%u", order);
else {
/* order=0 means it doesn't exist. we don't
want to return "0" though, because then the
mails get ordered to beginning, while
nonexistent are supposed to be ordered at
the end. */
}
}
*value_r = str_c(str);
return 0;
}
if (dbox_mail_metadata_get(mail, key, &value) < 0)
return -1;
if (value == NULL)
value = "";
if (cache_field != MAIL_CACHE_POP3_ORDER) {
index_mail_cache_add_idx(imail, ibox->cache_fields[cache_field].idx,
value, strlen(value)+1);
} else {
if (str_to_uint(value, &order) < 0)
order = 0;
index_mail_cache_add_idx(imail, ibox->cache_fields[cache_field].idx,
&order, sizeof(order));
}
/* don't return pointer to dbox metadata directly, since it may
change unexpectedly */
str_truncate(str, 0);
str_append(str, value);
*value_r = str_c(str);
return 0;
}
int index_mail_cache_lookup_field(struct index_mail *mail, buffer_t *buf,
unsigned int field_idx)
{
int ret;
ret = mail_cache_lookup_field(mail->trans->cache_view, buf,
mail->data.seq, field_idx);
if (ret > 0)
mail->mail.stats_cache_hit_count++;
return ret;
}
static int imapc_mail_get_guid(struct mail *_mail, const char **value_r)
{
struct index_mail *imail = (struct index_mail *)_mail;
struct imapc_mailbox *mbox = (struct imapc_mailbox *)_mail->box;
const enum index_cache_field cache_idx =
imail->ibox->cache_fields[MAIL_CACHE_GUID].idx;
string_t *str;
if (imail->data.guid != NULL) {
*value_r = imail->data.guid;
return 0;
}
str = str_new(imail->mail.data_pool, 64);
if (mail_cache_lookup_field(_mail->transaction->cache_view,
str, imail->mail.mail.seq, cache_idx) > 0) {
*value_r = str_c(str);
return 0;
}
/* GUID not in cache, fetch it */
if (mbox->guid_fetch_field_name != NULL) {
if (imapc_mail_fetch(_mail, MAIL_FETCH_GUID) < 0)
return -1;
if (imail->data.guid == NULL) {
(void)imapc_mail_failed(_mail, mbox->guid_fetch_field_name);
return -1;
}
} else {
/* use hash of message headers as the GUID */
if (imapc_mail_get_hdr_hash(imail) < 0)
return -1;
}
index_mail_cache_add_idx(imail, cache_idx,
imail->data.guid, strlen(imail->data.guid)+1);
*value_r = imail->data.guid;
return 0;
}
