Signed-off-by: Peter Hutterer <[email protected]>
---
src/libinput-util.c | 14 ++++++++++++++
src/libinput-util.h | 1 +
2 files changed, 15 insertions(+)
diff --git a/src/libinput-util.c b/src/libinput-util.c
index 80ed489a..d8878f6a 100644
--- a/src/libinput-util.c
+++ b/src/libinput-util.c
@@ -61,6 +61,20 @@ list_insert(struct list *list, struct list *elm)
elm->next->prev = elm;
}
+void
+list_append(struct list *list, struct list *elm)
+{
+ assert((list->next != NULL && list->prev != NULL) ||
+ !"list->next|prev is NULL, possibly missing list_init()");
+ assert(((elm->next == NULL && elm->prev == NULL) || list_empty(elm)) ||
+ !"elm->next|prev is not NULL, list node used twice?");
+
+ elm->next = list;
+ elm->prev = list->prev;
+ list->prev = elm;
+ elm->prev->next = elm;
+}
+
void
list_remove(struct list *elm)
{
diff --git a/src/libinput-util.h b/src/libinput-util.h
index c6759718..5d16b973 100644
--- a/src/libinput-util.h
+++ b/src/libinput-util.h
@@ -86,6 +86,7 @@ struct list {
void list_init(struct list *list);
void list_insert(struct list *list, struct list *elm);
+void list_append(struct list *list, struct list *elm);
void list_remove(struct list *elm);
bool list_empty(const struct list *list);
--
2.14.3
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