+// Probably session_init_databases_fun should be refactored instead of
+// called here.
+static struct session_database *load_session_database(struct session *se, char *id)
+{
+ struct database *db = find_database(id, 0);
+
+ session_init_databases_fun((void*) se, db);
+ // New sdb is head of se->databases list
+ return se->databases;
+}
+
+// Find an existing session database. If not found, load it
+static struct session_database *find_session_database(struct session *se, char *id)
+{
+ struct session_database *sdb;
+
+ for (sdb = se->databases; sdb; sdb = sdb->next)
+ if (!strcmp(sdb->database->url, id))
+ return sdb;
+ return load_session_database(se, id);
+}
+
+// Apply a session override to a database
+void session_apply_setting(struct session *se, char *dbname, char *setting, char *value)
+{
+ struct session_database *sdb = find_session_database(se, dbname);
+ struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
+ int offset = settings_offset(setting);
+
+ if (offset < 0)
+ {
+ yaz_log(YLOG_WARN, "Unknown setting %s", setting);
+ return;
+ }
+ new->precedence = 0;
+ new->target = dbname;
+ new->name = setting;
+ new->value = value;
+ new->next = sdb->settings[offset];
+ sdb->settings[offset] = new;
+
+ // Force later recompute of settings-driven data structures
+ // (happens when a search starts and client connections are prepared)
+ switch (offset)
+ {
+ case PZ_NATIVESYNTAX:
+ if (sdb->yaz_marc)
+ {
+ yaz_marc_destroy(sdb->yaz_marc);
+ sdb->yaz_marc = 0;
+ }
+ break;
+ case PZ_XSLT:
+ if (sdb->map)
+ {
+ struct database_retrievalmap *m;
+ // We don't worry about the map structure -- it's in nmem
+ for (m = sdb->map; m; m = m->next)
+ xsltFreeStylesheet(m->stylesheet);
+ sdb->map = 0;
+ }
+ break;
+ }
+}
+