lib: read "property" terms from messages.

This is a first step towards providing an API to attach
arbitrary (key,value) pairs to messages and retrieve all of the values
for a given key.
This commit is contained in:
David Bremner 2016-06-12 22:05:48 -03:00
parent a63e674b34
commit 4dfb69169e
3 changed files with 32 additions and 1 deletions

View file

@ -251,6 +251,7 @@ static prefix_t BOOLEAN_PREFIX_INTERNAL[] = {
{ "directory", "XDIRECTORY" },
{ "file-direntry", "XFDIRENTRY" },
{ "directory-direntry", "XDDIRENTRY" },
{ "property", "XPROPERTY" },
};
static prefix_t BOOLEAN_PREFIX_EXTERNAL[] = {

View file

@ -37,6 +37,8 @@ struct visible _notmuch_message {
notmuch_string_list_t *filename_list;
char *author;
notmuch_message_file_t *message_file;
notmuch_string_list_t *property_term_list;
notmuch_string_map_t *property_map;
notmuch_message_list_t *replies;
unsigned long flags;
/* For flags that are initialized on-demand, lazy_flags indicates
@ -116,6 +118,8 @@ _notmuch_message_create_for_document (const void *talloc_owner,
message->filename_list = NULL;
message->message_file = NULL;
message->author = NULL;
message->property_term_list = NULL;
message->property_map = NULL;
message->replies = _notmuch_message_list_create (message);
if (unlikely (message->replies == NULL)) {
@ -314,6 +318,7 @@ _notmuch_message_ensure_metadata (notmuch_message_t *message)
*id_prefix = _find_prefix ("id"),
*type_prefix = _find_prefix ("type"),
*filename_prefix = _find_prefix ("file-direntry"),
*property_prefix = _find_prefix ("property"),
*replyto_prefix = _find_prefix ("replyto");
/* We do this all in a single pass because Xapian decompresses the
@ -369,11 +374,21 @@ _notmuch_message_ensure_metadata (notmuch_message_t *message)
_notmuch_database_get_terms_with_prefix (message, i, end,
filename_prefix);
/* Get property terms. Mimic the setup with filenames above */
assert (strcmp (filename_prefix, property_prefix) < 0);
if (!message->property_map && !message->property_term_list)
message->property_term_list =
_notmuch_database_get_terms_with_prefix (message, i, end,
property_prefix);
/* Get reply to */
assert (strcmp (filename_prefix, replyto_prefix) < 0);
assert (strcmp (property_prefix, replyto_prefix) < 0);
if (!message->in_reply_to)
message->in_reply_to =
_notmuch_message_get_term (message, i, end, replyto_prefix);
/* It's perfectly valid for a message to have no In-Reply-To
* header. For these cases, we return an empty string. */
if (!message->in_reply_to)
@ -405,6 +420,18 @@ _notmuch_message_invalidate_metadata (notmuch_message_t *message,
message->filename_term_list = message->filename_list = NULL;
}
if (strcmp ("property", prefix_name) == 0) {
if (message->property_term_list)
talloc_free (message->property_term_list);
message->property_term_list = NULL;
if (message->property_map)
talloc_unlink (message, message->property_map);
message->property_map = NULL;
}
if (strcmp ("replyto", prefix_name) == 0) {
talloc_free (message->in_reply_to);
message->in_reply_to = NULL;

View file

@ -541,6 +541,9 @@ _notmuch_string_list_append (notmuch_string_list_t *list,
void
_notmuch_string_list_sort (notmuch_string_list_t *list);
/* string-map.c */
typedef struct _notmuch_string_map notmuch_string_map_t;
/* tags.c */
notmuch_tags_t *