app/proc_info: check for primary process

Add a check to see if the primary process is running and exit gracefully
if it is not.

Suggested-by: Patrick Kutch <patrick.g.kutch@intel.com>
Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>

diff --git a/app/proc_info/main.c b/app/proc_info/main.c
index 6dc0bbb..8246fb2 100644 (file)
--- a/app/proc_info/main.c
+++ b/app/proc_info/main.c
@@ -329,6 +329,9 @@ main(int argc, char **argv)
        argc -= ret;
        argv += (ret - 3);
 
+       if (!rte_eal_primary_proc_alive(NULL))
+               rte_exit(EXIT_FAILURE, "No primary DPDK process is running.\n");
+
        /* parse app arguments */
        ret = proc_info_parse_args(argc, argv);
        if (ret < 0)