# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1650288592 -7200
# Node ID e98b09018d328487416f7cf7a49965ccc5e04cf4
# Parent  6a981ec4d58bb0760474396a9839263fea0c1d21
remove list destructor

diff -r 6a981ec4d58b -r e98b09018d32 src/cx/list.h
--- a/src/cx/list.h	Mon Apr 18 14:41:19 2022 +0200
+++ b/src/cx/list.h	Mon Apr 18 15:29:52 2022 +0200
@@ -71,10 +71,6 @@
      */
     CxAllocator const *allocator;
     /**
-     * A mandatory destructor for the list structure.
-     */
-    cx_destructor_func list_destructor;
-    /**
      * An optional destructor for the list contents.
      */
     cx_destructor_func content_destructor;
@@ -95,11 +91,6 @@
      */
     size_t capacity;
     /**
-     * Flag indicating whether cxListDestroy() shall free the list structure,
-     * even if cx_list_s.list_destructor did not do that.
-     */
-    bool autofree;
-    /**
      * Flag indicating whether cxListDestroy() shall free each list element,
      * even if cx_list_s.content_destructor did not do that.
      */
@@ -111,6 +102,11 @@
  */
 struct cx_list_class_s {
     /**
+     * Destructor function.
+     */
+    void (*destructor)(struct cx_list_s *list);
+
+    /**
      * Member function for adding an element.
      */
     int (*add)(
@@ -193,25 +189,6 @@
 typedef struct cx_list_s CxList;
 
 /**
- * Convenience function to configure the memory management for this list.
- *
- * @param list the list to configure
- * @param list_destructor an alternative list destructor to use (if \c NULL, the current destructor remains unchanged)
- * @param content_destructor the content destructor to use (if \c NULL, no content destructor is used)
- * @param list_autofree a flag indicating, if the list allocator shall free the list, if the destructor did not do that
- * @param content_autofree a flag indicating, if the list allocator shall free an element,
- * if the content destructor did not do that or no content destructor exists
- */
-__attribute__((__nonnull__(1)))
-void cxListMemoryMgmt(
-        CxList *list,
-        cx_destructor_func list_destructor,
-        cx_destructor_func content_destructor,
-        bool list_autofree,
-        bool content_autofree
-);
-
-/**
  * Adds an item to the end of the list.
  *
  * @param list the list
diff -r 6a981ec4d58b -r e98b09018d32 src/linked_list.c
--- a/src/linked_list.c	Mon Apr 18 14:41:19 2022 +0200
+++ b/src/linked_list.c	Mon Apr 18 15:29:52 2022 +0200
@@ -733,7 +733,20 @@
     return cx_ll_insert_iter(iter, &elem, prepend);
 }
 
+static void cx_ll_destructor(CxList *list) {
+    cx_linked_list *ll = (cx_linked_list *) list;
+
+    cx_linked_list_node *node = ll->begin;
+    while (node) {
+        void *next = node->next;
+        cxFree(list->allocator, node);
+        node = next;
+    }
+    // do not free the list pointer, this is just a destructor!
+}
+
 static cx_list_class cx_linked_list_class = {
+        cx_ll_destructor,
         cx_ll_add,
         cx_ll_insert,
         cx_ll_insert_iter,
@@ -747,6 +760,7 @@
 };
 
 static cx_list_class cx_pointer_linked_list_class = {
+        cx_ll_destructor,
         cx_pll_add,
         cx_pll_insert,
         cx_pll_insert_iter,
@@ -759,20 +773,6 @@
         cx_pll_iterator,
 };
 
-static CxList *cx_ll_default_destructor(CxList *list) {
-    cx_linked_list *ll = (cx_linked_list *) list;
-
-    cx_linked_list_node *node = ll->begin;
-    while (node) {
-        void *next = node->next;
-        cxFree(list->allocator, node);
-        node = next;
-    }
-
-    cxFree(list->allocator, list);
-    return NULL;
-}
-
 CxList *cxLinkedListCreate(
         CxAllocator const *allocator,
         CxListComparator comparator,
@@ -784,7 +784,6 @@
 
     list->base.cl = &cx_linked_list_class;
     list->base.allocator = allocator;
-    list->base.list_destructor = (cx_destructor_func) cx_ll_default_destructor;
     list->base.cmpfunc = comparator;
     list->base.itemsize = item_size;
     list->base.capacity = SIZE_MAX;
@@ -802,7 +801,6 @@
 
     list->base.cl = &cx_pointer_linked_list_class;
     list->base.allocator = allocator;
-    list->base.list_destructor = (cx_destructor_func) cx_ll_default_destructor;
     list->base.cmpfunc = comparator;
     list->base.itemsize = sizeof(void *);
     list->base.capacity = SIZE_MAX;
@@ -821,7 +819,9 @@
     if (list == NULL) return NULL;
     cx_for_n (i, num_items) {
         if (0 != cxListAdd(list, ((const unsigned char *) array) + i * item_size)) {
-            return cx_ll_default_destructor(list);
+            cx_ll_destructor(list);
+            cxFree(allocator, list);
+            return NULL;
         }
     }
     return list;
diff -r 6a981ec4d58b -r e98b09018d32 src/list.c
--- a/src/list.c	Mon Apr 18 14:41:19 2022 +0200
+++ b/src/list.c	Mon Apr 18 15:29:52 2022 +0200
@@ -50,23 +50,7 @@
             }
         }
     }
-    if (list->autofree) {
-        cxFree(list->allocator, list->list_destructor(list));
-        return NULL;
-    } else {
-        return list->list_destructor(list);
-    }
+    list->cl->destructor(list);
+    cxFree(list->allocator, list);
+    return NULL;
 }
-
-void cxListMemoryMgmt(
-        CxList *list,
-        cx_destructor_func list_destructor,
-        cx_destructor_func content_destructor,
-        bool list_autofree,
-        bool content_autofree
-) {
-    if (list_destructor != NULL) list->list_destructor = list_destructor;
-    list->content_destructor = content_destructor;
-    list->autofree = list_autofree;
-    list->autofree_contents = content_autofree;
-}