Added a new eurephiaVALUES function: eClear_key_value()

This function clears the contents of a eurephiaVALUES key/value record.
It will not remove the record from the stack, but only free the key and
value pointers and sets them to NULL.

Signed-off-by: David Sommerseth <dazo@users.sourceforge.net>

2 files changed, 16 insertions, 2 deletions

diff --git a/common/eurephia_values.c b/common/eurephia_values.c
index d9f64eb..19fe05d 100644
--- a/common/eurephia_values.c
+++ b/common/eurephia_values.c
@@ -38,6 +38,20 @@
 
 
 /**
+ * Clears the values of a eurephiaVALUES key/value record.
+ * This function does not remove the record from the stack, but
+ * only frees the key and value pointers and sets them to NULL.
+ *
+ * @param vls Pointer to the eurephiaVALUES record to be cleared
+ */
+void eClear_key_value(eurephiaVALUES *vls) {
+        if( vls != NULL ) {
+                free_nullsafe(NULL, vls->key);
+                free_nullsafe(NULL, vls->val);
+        }
+}
+
+/**
  * Internal function. Makes sure a eurephiaVALUES stack is freed up
  *
  * @param vls Pointer to a eurephiaVALUES stack.
@@ -46,8 +60,7 @@ void do_free_vals(eurephiaVALUES *vls) {
         if( vls->next != NULL ) {
                 do_free_vals(vls->next);
         }
-        free_nullsafe(NULL, vls->key);
-        free_nullsafe(NULL, vls->val);
+        eClear_key_value(vls);
         free_nullsafe(NULL, vls);
 }
 
diff --git a/common/eurephia_values.h b/common/eurephia_values.h
index ce91711..a440258 100644
--- a/common/eurephia_values.h
+++ b/common/eurephia_values.h
@@ -41,6 +41,7 @@ eurephiaVALUES *eCreate_value_space(eurephiaCTX *ctx, int evid);
 void eAdd_valuestruct(eurephiaCTX *ctx, eurephiaVALUES *vls, eurephiaVALUES *newval);
 void eAdd_value(eurephiaCTX *ctx, eurephiaVALUES *vls, const char *key, const char *val);
 eurephiaVALUES *eRemove_value(eurephiaCTX *ctx, eurephiaVALUES *vls, unsigned int evgid, unsigned int evid);
+void eClear_key_value(eurephiaVALUES *vls);
 
 /**
  * Front-end function for eFree_values_func().  Frees eurephiaVALUES pointer chain and