tal: don't defer-after-free if a destructor deletes itself.

[ccan] / ccan / tal / tal.h

diff --git a/ccan/tal/tal.h b/ccan/tal/tal.h
index e25dcb92985922acc5a50007f5c397ddb4aa9237..8b7ffca5ea8125ef8ba36a623d989e8aad6fff33 100644 (file)
--- a/ccan/tal/tal.h
+++ b/ccan/tal/tal.h
@@ -164,7 +164,8 @@ void *tal_free(const tal_t *p);
  * @function: the function to call before it's freed.
  *
  * If @function has not been successfully added as a destructor, this returns
- * false.
+ * false.  Note that if we're inside the destructor call itself, this will
+ * return false.
  */
 #define tal_del_destructor(ptr, function)                                    \
        tal_del_destructor_((ptr), typesafe_cb(void, void *, (function), (ptr)))
@@ -195,7 +196,8 @@ void *tal_free(const tal_t *p);
  * @function: the function to call before it's freed.
  *
  * If @function has not been successfully added as a destructor, this returns
- * false.
+ * false.  Note that if we're inside the destructor call itself, this will
+ * return false.
  */
 #define tal_del_destructor(ptr, function)                                    \
        tal_del_destructor_((ptr), typesafe_cb(void, void *, (function), (ptr)))