Consolidate reference counting code.

1 files changed, 6 insertions, 11 deletions

diff --git a/libdimension/interior.c b/libdimension/interior.c
index 939bd4f..0eec274 100644
--- a/libdimension/interior.c
+++ b/libdimension/interior.c
@@ -33,8 +33,7 @@ dmnsn_new_interior(void)
   dmnsn_interior *interior = dmnsn_malloc(sizeof(dmnsn_interior));
   interior->ior       = 1.0;
   interior->free_fn   = NULL;
-  interior->refcount  = dmnsn_malloc(sizeof(unsigned int));
-  *interior->refcount = 1;
+  interior->refcount  = dmnsn_new_refcount();
   return interior;
 }
 
@@ -42,15 +41,11 @@ dmnsn_new_interior(void)
 void
 dmnsn_delete_interior(dmnsn_interior *interior)
 {
-  if (interior) {
-    if (*interior->refcount <= 1) {
-      if (interior->free_fn) {
-        interior->free_fn(interior->ptr);
-      }
-      dmnsn_free(interior->refcount);
-      dmnsn_free(interior);
-    } else {
-      --*interior->refcount;
+  if (interior && DMNSN_DECREF(interior)) {
+    if (interior->free_fn) {
+      interior->free_fn(interior->ptr);
     }
+    dmnsn_delete_refcount(interior->refcount);
+    dmnsn_free(interior);
   }
 }