From dc640259adff6007d195fd4cc78dcf9829e5e6ee Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Thu, 29 May 2014 05:22:02 -0500 Subject: Switch mtab_list to doubly linked so we can traverse in either order. Convert umount and df. Add dlist_terminate() to break lists for traversal in either direction. --- lib/llist.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'lib/llist.c') diff --git a/lib/llist.c b/lib/llist.c index 2d5bc97a..6b4b8f2c 100644 --- a/lib/llist.c +++ b/lib/llist.c @@ -85,3 +85,17 @@ struct double_list *dlist_add(struct double_list **list, char *data) return new; } + +// Terminate circular list for traversal in either direction. Returns end *. +void *dlist_terminate(void *list) +{ + struct double_list *end = list; + + if (!list) return 0; + + end = end->prev; + end->next->prev = 0; + end->next = 0; + + return end; +} -- cgit v1.2.3