lib: Prevent crash in ioloop

If only non-fd sources and no timeouts are
in ioloop, prevent crash and unnecessary
waiting when there are pending IOs.

diff --git a/src/lib/ioloop.c b/src/lib/ioloop.c
index eab5624d21345b326595c897fa113f4a52b809d6..640f3fb10d723ab637d24013d5d786cacfc4e26b 100644 (file)
--- a/src/lib/ioloop.c
+++ b/src/lib/ioloop.c
@@ -393,6 +393,10 @@ int io_loop_get_wait_time(struct ioloop *ioloop, struct timeval *tv_r)
        struct timeout *timeout;
        int msecs;
 
+       /* if there are pending io, do not wait, possibly
+           forever, for them, but process them directly. */
+       if (current_ioloop->io_pending_count > 0) return 0;
+
        item = priorityq_peek(ioloop->timeouts);
        timeout = (struct timeout *)item;
        if (timeout == NULL) {