X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=commit.h;h=98682b232a2c28a4baa970ec81dfb027c196872f;hb=9181ca2c2b1f2897baa67ff8e48b1984822115b5;hp=986b22de8abd01e7404bc4f195be0d11baefb13a;hpb=90768daaa006516c7ae69ed89d7c2e67243dfac1;p=git.git

diff --git a/commit.h b/commit.h
index 986b22de..98682b23 100644
--- a/commit.h
+++ b/commit.h
@@ -65,13 +65,29 @@ int count_parents(struct commit * commit);
 /*
  * Performs an in-place topological sort of list supplied.
  *
- * Pre-conditions:
+ * Pre-conditions for sort_in_topological_order:
  *   all commits in input list and all parents of those
  *   commits must have object.util == NULL
- *        
- * Post-conditions: 
+ *
+ * Pre-conditions for sort_in_topological_order_fn:
+ *   all commits in input list and all parents of those
+ *   commits must have getter(commit) == NULL
+ *
+ * Post-conditions:
  *   invariant of resulting list is:
  *      a reachable from b => ord(b) < ord(a)
+ *   in addition, when lifo == 0, commits on parallel tracks are
+ *   sorted in the dates order.
  */
-void sort_in_topological_order(struct commit_list ** list);
+
+typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
+typedef void* (*topo_sort_get_fn_t)(struct commit*);
+
+void topo_sort_default_setter(struct commit *c, void *data);
+void *topo_sort_default_getter(struct commit *c);
+
+void sort_in_topological_order(struct commit_list ** list, int lifo);
+void sort_in_topological_order_fn(struct commit_list ** list, int lifo,
+				  topo_sort_set_fn_t setter,
+				  topo_sort_get_fn_t getter);
 #endif /* COMMIT_H */