+#
+int pids_list_add_list(pids_list_t *dst, pids_list_t *src);
+
+/*
+ * NAME
+ * pids_list_contains_pid
+ *
+ * DESCRIPTION
+ * Tests if pids list contains specific pid.
+ *
+ * PARAMETERS
+ * `list' pids_list to check.
+ * `pid' Pid to be searched for.
+ *
+ * RETURN VALUE
+ * If PID found in list, returns 1,
+ * Otherwise returns 0.
+ */
+int pids_list_contains_pid(pids_list_t *list, const pid_t pid);
+