[RFC 1/6] dumpcap: handle primary process exit

[Stephen Hemminger <stephen@networkplumber.org>]

If primary process exits, then it is not possible (or needed)
to cleanup resources. Instead just exit after closing the
capture file.

Bugzilla ID: 1760
Fixes: cbb44143be74 ("app/dumpcap: add new packet capture application")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 app/dumpcap/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/dumpcap/main.c b/app/dumpcap/main.c
index 3d3c0dbc66..7b19c830b5 100644
--- a/app/dumpcap/main.c
+++ b/app/dumpcap/main.c
@@ -1058,6 +1058,10 @@ int main(int argc, char **argv)
 	else
 		pcap_dump_close(out.dumper);
 
+	/* If primary has exited, do not try and communicate with it */
+	if (!rte_eal_primary_proc_alive(NULL))
+		return 0;
+
 	cleanup_pdump_resources();
 
 	rte_ring_free(r);
-- 
2.47.2