Merge pull request #11827 from keszybz/pkgconfig-variables

[thirdparty/systemd.git] / src / basic / prioq.c

diff --git a/src/basic/prioq.c b/src/basic/prioq.c
index 4ef4eaf0cdebb14fcf0d62fd7630aba92e8cbe51..76b27fa0a8e65e52c449e6e9bd009609bc0c5fc9 100644 (file)
--- a/src/basic/prioq.c
+++ b/src/basic/prioq.c
@@ -65,9 +65,6 @@ int prioq_ensure_allocated(Prioq **q, compare_func_t compare_func) {
 }
 
 static void swap(Prioq *q, unsigned j, unsigned k) {
-        void *saved_data;
-        unsigned *saved_idx;
-
         assert(q);
         assert(j < q->n_items);
         assert(k < q->n_items);
@@ -75,12 +72,8 @@ static void swap(Prioq *q, unsigned j, unsigned k) {
         assert(!q->items[j].idx || *(q->items[j].idx) == j);
         assert(!q->items[k].idx || *(q->items[k].idx) == k);
 
-        saved_data = q->items[j].data;
-        saved_idx = q->items[j].idx;
-        q->items[j].data = q->items[k].data;
-        q->items[j].idx = q->items[k].idx;
-        q->items[k].data = saved_data;
-        q->items[k].idx = saved_idx;
+        SWAP_TWO(q->items[j].data, q->items[k].data);
+        SWAP_TWO(q->items[j].idx, q->items[k].idx);
 
         if (q->items[j].idx)
                 *q->items[j].idx = j;
@@ -266,15 +259,14 @@ int prioq_reshuffle(Prioq *q, void *data, unsigned *idx) {
         return 1;
 }
 
-void *prioq_peek(Prioq *q) {
-
+void *prioq_peek_by_index(Prioq *q, unsigned idx) {
         if (!q)
                 return NULL;
 
-        if (q->n_items <= 0)
+        if (idx >= q->n_items)
                 return NULL;
 
-        return q->items[0].data;
+        return q->items[idx].data;
 }
 
 void *prioq_pop(Prioq *q) {