til_settings: add til_settings_get_count()

Getter for accessing til_settings_t.num

With recursive settings modules will start using settings
instances to represent things like lists of module names.
(modules/compose::layers for instance)

For those cases they'll want to know the number of settings in
the instance before iterating across getting their values
positionally.

2 files changed, 9 insertions, 0 deletions

diff --git a/src/til_settings.c b/src/til_settings.c
index 0328475..71aefb4 100644
--- a/src/til_settings.c
+++ b/src/til_settings.c
@@ -199,6 +199,14 @@ til_settings_t * til_settings_free(til_settings_t *settings)
 }
 
 
+unsigned til_settings_get_count(const til_settings_t *settings)
+{
+	assert(settings);
+
+	return settings->num;
+}
+
+
 /* 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 4cfddf3..a2dacb8 100644
--- a/src/til_settings.h
+++ b/src/til_settings.h
@@ -43,6 +43,7 @@ struct til_setting_t {
 
 til_settings_t * til_settings_new(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 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, const til_setting_desc_t *desc);