til_settings: add ability to get at settings parent

Introduce til_settings_get_parent(), impetus being so
til_module_setup() can infer if it's hermetic-appropriate or not.

2 files changed, 9 insertions, 0 deletions

diff --git a/src/til_settings.c b/src/til_settings.c
index fb71bf7..cdb5cd7 100644
--- a/src/til_settings.c
+++ b/src/til_settings.c
@@ -219,6 +219,14 @@ unsigned til_settings_get_count(const til_settings_t *settings)
 }
 
 
+const til_settings_t * til_settings_get_parent(const til_settings_t *settings)
+{
+	assert(settings);
+
+	return settings->parent;
+}
+
+
 /* find key= in settings, return value NULL if missing, optionally store setting @res_setting if found */
 const char * til_settings_get_value_by_key(const til_settings_t *settings, const char *key, til_setting_t **res_setting)
 {
diff --git a/src/til_settings.h b/src/til_settings.h
index 8cdaf88..8339b63 100644
--- a/src/til_settings.h
+++ b/src/til_settings.h
@@ -48,6 +48,7 @@ struct til_setting_t {
 til_settings_t * til_settings_new(const char *prefix, const til_settings_t *parent, const char *label, const char *settings);
 til_settings_t * til_settings_free(til_settings_t *settings);
 unsigned til_settings_get_count(const til_settings_t *settings);
+const til_settings_t * til_settings_get_parent(const til_settings_t *settings);
 const char * til_settings_get_value_by_key(const til_settings_t *settings, const char *key, til_setting_t **res_setting);
 const char * til_settings_get_value_by_idx(const til_settings_t *settings, unsigned idx, til_setting_t **res_setting);
 til_setting_t * til_settings_add_value(til_settings_t *settings, const char *key, const char *value);