notmuch_database_t *notmuch;
Xapian::docid doc_id;
char *message_id;
+ char *filename;
Xapian::Document doc;
};
char *next;
};
+/* "128 bits of thread-id ought to be enough for anybody" */
+#define NOTMUCH_THREAD_ID_BITS 128
+#define NOTMUCH_THREAD_ID_DIGITS (NOTMUCH_THREAD_ID_BITS / 4)
+typedef struct _thread_id {
+ char str[NOTMUCH_THREAD_ID_DIGITS + 1];
+} thread_id_t;
+
#define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
/* These prefix values are specifically chosen to be compatible
return 0;
}
+/* Create a new notmuch_message_t object for an existing document in
+ * the database.
+ *
+ * Here, 'talloc owner' is an optional talloc context to which the new
+ * message will belong. This allows for the caller to not bother
+ * calling notmuch_message_destroy on the message, and no that all
+ * memory will be reclaimed with 'talloc_owner' is free. The caller
+ * still can call notmuch_message_destroy when finished with the
+ * message if desired.
+ *
+ * The 'talloc_owner' argument can also be NULL, in which case the
+ * caller *is* responsible for calling notmuch_message_destroy.
+ *
+ * If no document exists in the database with document ID of 'doc_id'
+ * then this function returns NULL.
+ */
notmuch_message_t *
_notmuch_message_create (const void *talloc_owner,
notmuch_database_t *notmuch,
message->notmuch = notmuch;
message->doc_id = doc_id;
message->message_id = NULL; /* lazily created */
+ message->filename = NULL; /* lazily created */
new (&message->doc) Xapian::Document;
talloc_set_destructor (message, _notmuch_message_destructor);
- message->doc = notmuch->xapian_db->get_document (doc_id);
+ try {
+ message->doc = notmuch->xapian_db->get_document (doc_id);
+ } catch (const Xapian::DocNotFoundError &error) {
+ talloc_free (message);
+ return NULL;
+ }
return message;
}
+/* Create a new notmuch_message_t object for a specific message ID,
+ * (which may or may not already exist in the databas).
+ *
+ * Here, 'talloc owner' is an optional talloc context to which the new
+ * message will belong. This allows for the caller to not bother
+ * calling notmuch_message_destroy on the message, and no that all
+ * memory will be reclaimed with 'talloc_owner' is free. The caller
+ * still can call notmuch_message_destroy when finished with the
+ * message if desired.
+ *
+ * The 'talloc_owner' argument can also be NULL, in which case the
+ * caller *is* responsible for calling notmuch_message_destroy.
+ *
+ * If there is already a document with message ID 'message_id' in the
+ * database, then the returned message can be used to query/modify the
+ * document. Otherwise, a new document will be inserted into the
+ * database before this function returns;
+ */
+notmuch_message_t *
+_notmuch_message_create_for_message_id (const void *talloc_owner,
+ notmuch_database_t *notmuch,
+ const char *message_id)
+{
+ notmuch_message_t *message;
+ Xapian::Document doc;
+ unsigned int doc_id;
+ char *term;
+
+ message = notmuch_database_find_message (notmuch, message_id);
+ if (message)
+ return talloc_steal (talloc_owner, message);
+
+ term = talloc_asprintf (NULL, "%s%s",
+ _find_prefix ("msgid"), message_id);
+ doc.add_term (term);
+ talloc_free (term);
+
+ doc.add_value (NOTMUCH_VALUE_MESSAGE_ID, message_id);
+
+ doc_id = notmuch->xapian_db->add_document (doc);
+
+ return _notmuch_message_create (talloc_owner, notmuch, doc_id);
+}
+
const char *
notmuch_message_get_message_id (notmuch_message_t *message)
{
i = message->doc.termlist_begin ();
i.skip_to (_find_prefix ("msgid"));
- /* XXX: This should really be an internal error, but we'll need to
- * fix the add_message side of things first. */
- if (i == message->doc.termlist_end ())
- return NULL;
+ if (i == message->doc.termlist_end ()) {
+ fprintf (stderr, "Internal error: Message with document ID of %d has no message ID.\n",
+ message->doc_id);
+ exit (1);
+ }
message->message_id = talloc_strdup (message, (*i).c_str () + 1);
return message->message_id;
}
+/* Set the filename for 'message' to 'filename'.
+ *
+ * XXX: We should still figure out what we want to do for multiple
+ * files with identical message IDs. We will probably want to store a
+ * list of filenames here, (so that this will be "add_filename"
+ * instead of "set_filename"). Which would make this very similar to
+ * add_thread_ids.
+ *
+ * This change will not be reflected in the database until the next
+ * call to _notmuch_message_set_sync. */
+void
+_notmuch_message_set_filename (notmuch_message_t *message,
+ const char *filename)
+{
+ if (message->filename)
+ talloc_free (message->filename);
+ message->doc.set_data (filename);
+}
+
+const char *
+notmuch_message_get_filename (notmuch_message_t *message)
+{
+ std::string filename_str;
+
+ if (message->filename)
+ return message->filename;
+
+ filename_str = message->doc.get_data ();
+ message->filename = talloc_strdup (message, filename_str.c_str ());
+
+ return message->filename;
+}
+
/* We end up having to call the destructors explicitly because we had
* to use "placement new" in order to initialize C++ objects within a
* block that we allocated with talloc. So C++ is making talloc
return thread_ids;
}
-/* Synchronize changes made to message->doc into the database. */
+void
+_notmuch_message_set_date (notmuch_message_t *message,
+ const char *date)
+{
+ time_t time_value;
+
+ time_value = notmuch_parse_date (date, NULL);
+
+ message->doc.add_value (NOTMUCH_VALUE_DATE,
+ Xapian::sortable_serialise (time_value));
+}
+
+void
+_notmuch_message_add_thread_id (notmuch_message_t *message,
+ const char *thread_id)
+{
+ std::string id_str;
+
+ _notmuch_message_add_term (message, "thread", thread_id);
+
+ id_str = message->doc.get_value (NOTMUCH_VALUE_THREAD);
+
+ if (id_str.empty ()) {
+ message->doc.add_value (NOTMUCH_VALUE_THREAD, thread_id);
+ } else {
+ size_t pos;
+
+ /* Think about using a hash here if there's any performance
+ * problem. */
+ pos = id_str.find (thread_id);
+ if (pos == std::string::npos) {
+ id_str.append (",");
+ id_str.append (thread_id);
+ message->doc.add_value (NOTMUCH_VALUE_THREAD, id_str);
+ }
+ }
+}
+
static void
+thread_id_generate (thread_id_t *thread_id)
+{
+ static int seeded = 0;
+ FILE *dev_random;
+ uint32_t value;
+ char *s;
+ int i;
+
+ if (! seeded) {
+ dev_random = fopen ("/dev/random", "r");
+ if (dev_random == NULL) {
+ srand (time (NULL));
+ } else {
+ fread ((void *) &value, sizeof (value), 1, dev_random);
+ srand (value);
+ fclose (dev_random);
+ }
+ seeded = 1;
+ }
+
+ s = thread_id->str;
+ for (i = 0; i < NOTMUCH_THREAD_ID_DIGITS; i += 8) {
+ value = rand ();
+ sprintf (s, "%08x", value);
+ s += 8;
+ }
+}
+
+void
+_notmuch_message_ensure_thread_id (notmuch_message_t *message)
+{
+ /* If not part of any existing thread, generate a new thread_id. */
+ thread_id_t thread_id;
+
+ thread_id_generate (&thread_id);
+ _notmuch_message_add_term (message, "thread", thread_id.str);
+ message->doc.add_value (NOTMUCH_VALUE_THREAD, thread_id.str);
+}
+
+/* Synchronize changes made to message->doc out into the database. */
+void
_notmuch_message_sync (notmuch_message_t *message)
{
Xapian::WritableDatabase *db = message->notmuch->xapian_db;
db->replace_document (message->doc_id, message->doc);
}
+/* Add a name:value term to 'message', (the actual term will be
+ * encoded by prefixing the value with a short prefix). See
+ * NORMAL_PREFIX and BOOLEAN_PREFIX arrays for the mapping of term
+ * names to prefix values.
+ *
+ * This change will not be reflected in the database until the next
+ * call to _notmuch_message_set_sync. */
notmuch_private_status_t
_notmuch_message_add_term (notmuch_message_t *message,
const char *prefix_name,
return NOTMUCH_PRIVATE_STATUS_TERM_TOO_LONG;
message->doc.add_term (term);
- _notmuch_message_sync (message);
talloc_free (term);
return NOTMUCH_PRIVATE_STATUS_SUCCESS;
}
+/* Remove a name:value term from 'message', (the actual term will be
+ * encoded by prefixing the value with a short prefix). See
+ * NORMAL_PREFIX and BOOLEAN_PREFIX arrays for the mapping of term
+ * names to prefix values.
+ *
+ * This change will not be reflected in the database until the next
+ * call to _notmuch_message_set_sync. */
notmuch_private_status_t
_notmuch_message_remove_term (notmuch_message_t *message,
const char *prefix_name,
return NOTMUCH_PRIVATE_STATUS_TERM_TOO_LONG;
message->doc.remove_term (term);
- _notmuch_message_sync (message);
talloc_free (term);
exit (1);
}
+ _notmuch_message_sync (message);
+
return NOTMUCH_STATUS_SUCCESS;
}
exit (1);
}
+ _notmuch_message_sync (message);
+
return NOTMUCH_STATUS_SUCCESS;
}
return FALSE;
s = *tags->iterator;
- if (s.size () && s[0] == 'L')
+ if (! s.empty () && s[0] == 'L')
return TRUE;
else
return FALSE;
projects / notmuch / blobdiff