Implement a Concurrent Queue

1 files changed, 12 insertions, 0 deletions

diff --git a/src/ll.c b/src/ll.c
index 9bb1441..285203d 100644
--- a/src/ll.c
+++ b/src/ll.c
@@ -196,4 +196,16 @@ int dlinkedlist_foreach(dlinkedlist *ll, int (*callback)(void*)) {
         callback(p->data);
     
     return 0;
+}
+
+void * dlinkedlist_poplast(dlinkedlist *ll) {
+    if(!ll)
+        RETURNWERR(EINVAL, NULL);
+    if(dlinkedlist_isempty(ll))
+        RETURNWERR(ENODATA, NULL);
+
+    void *data = dlinkedlist_get(ll, ll->size - 1);
+    dlinkedlist_remove(ll, ll->size - 1);
+
+    return data;
 }
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