bgpd: Ensure that io thread is running after start

The BGP IO thread must be running before other threads
can start using it.  So at startup check to see
that it running once, instead of before every
function call into.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/bgpd/bgp_io.h b/bgpd/bgp_io.h
index c4bd3c2dd9..73587366d7 100644
--- a/bgpd/bgp_io.h
+++ b/bgpd/bgp_io.h
@@ -37,6 +37,16 @@
 extern void bgp_io_init(void);
 
 /**
+ * Ensure that the BGP IO thread is actually up and running
+ *
+ * This function must be called immediately after the thread
+ * has been created for running.  This is because we want
+ * to make sure that the io thread is ready before other
+ * threads start attempting to use it.
+ */
+extern void bgp_io_running(void);
+
+/**
  * Start function for write thread.
  *
  * @param arg - unused