[dpdk-dev] [PATCH v4 2/5] examples/multi_process: cleanup bus objects while terminating app

[rohit.raj@nxp.com]

From: Rohit Raj <rohit.raj@nxp.com>

Certain bus objects may need to be closed and re-acquired
while terminating and rerunning the client application.
Hence a signal handler is required to catch the termination
of the App and hence closing the bus objects.

This patch adds the missing signal handler in the client
app and closes the Bus objects in both client and server
applications when the signal Handler is called.

Signed-off-by: Rohit Raj <rohit.raj@nxp.com>
---
 .../multi_process/client_server_mp/mp_client/client.c | 11 +++++++++++
 .../multi_process/client_server_mp/mp_server/main.c   |  4 +++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/examples/multi_process/client_server_mp/mp_client/client.c b/examples/multi_process/client_server_mp/mp_client/client.c
index 361d90b54..c37516b4c 100644
--- a/examples/multi_process/client_server_mp/mp_client/client.c
+++ b/examples/multi_process/client_server_mp/mp_client/client.c
@@ -11,6 +11,7 @@
 #include <stdlib.h>
 #include <getopt.h>
 #include <string.h>
+#include <signal.h>
 
 #include <rte_common.h>
 #include <rte_malloc.h>
@@ -196,6 +197,14 @@ handle_packet(struct rte_mbuf *buf)
 
 }
 
+static void
+signal_handler(int signal)
+{
+	if (signal == SIGINT)
+		rte_eal_cleanup();
+	exit(0);
+}
+
 /*
  * Application main function - loops through
  * receiving and processing packets. Never returns
@@ -217,6 +226,8 @@ main(int argc, char *argv[])
 	argc -= retval;
 	argv += retval;
 
+	signal(SIGINT, signal_handler);
+
 	if (parse_app_args(argc, argv) < 0)
 		rte_exit(EXIT_FAILURE, "Invalid command-line arguments\n");
 
diff --git a/examples/multi_process/client_server_mp/mp_server/main.c b/examples/multi_process/client_server_mp/mp_server/main.c
index 280dab867..b0241cc20 100644
--- a/examples/multi_process/client_server_mp/mp_server/main.c
+++ b/examples/multi_process/client_server_mp/mp_server/main.c
@@ -275,11 +275,13 @@ signal_handler(int signal)
 {
 	uint16_t port_id;
 
-	if (signal == SIGINT)
+	if (signal == SIGINT) {
 		RTE_ETH_FOREACH_DEV(port_id) {
 			rte_eth_dev_stop(port_id);
 			rte_eth_dev_close(port_id);
 		}
+		rte_eal_cleanup();
+	}
 	exit(0);
 }
 
-- 
2.17.1