From 8f01c5394dcce8f5d4e7102dacfcdea9d1f7b021 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Thu, 16 Jul 2009 01:16:09 +0000
Subject: Add destructor callbacks for polymorphic C types, and use their base
 dmnsn_delete_*() function.

---
 libdimension/camera.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

(limited to 'libdimension/camera.c')

diff --git a/libdimension/camera.c b/libdimension/camera.c
index 5a321ef..dfa14e6 100644
--- a/libdimension/camera.c
+++ b/libdimension/camera.c
@@ -25,12 +25,21 @@
 dmnsn_camera *
 dmnsn_new_camera()
 {
-  return malloc(sizeof(dmnsn_camera));
+  dmnsn_camera *camera = malloc(sizeof(dmnsn_camera));
+  if (camera) {
+    camera->free_fn = NULL;
+  }
+  return camera;
 }
 
 /* Free a dummy camera */
 void
 dmnsn_delete_camera(dmnsn_camera *camera)
 {
-  free(camera);
+  if (camera) {
+    if (camera->free_fn) {
+      (*camera->free_fn)(camera->ptr);
+    }
+    free(camera);
+  }
 }
-- 
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