scheduling using real slots number

src/lib/xlist.c

@@ -86,6 +86,36 @@ int xlist_iter(xlist_t* l, xlist_iter_fn_t fn, void* data)
     return 0;
 }
 
+void* xlist_find(xlist_t* l, xlist_find_fn_t fn, ...)
+{
+    int     i;
+    va_list ap;
+    void*   it = NULL;
+
+    if ((l == NULL) || (fn == NULL)) {
+        errno = EINVAL;
+
+        return NULL;
+    }
+
+    va_start(ap, fn);
+    for (i = 0; i < l->count; i++) {
+        va_list ap1;
+        int     rc;
+
+        va_copy(ap1, ap);
+        rc = fn((void*)l->data[i], ap1);
+        va_end(ap1);
+
+        if (rc) {
+            it = (void*)l->data[i];
+            break;
+        }
+    }
+
+    return it;
+}
+
 void xlist_fini(xlist_t* l)
 {
     if (l == NULL) {