diff mbox

[dpdk-dev,v5,3/3] examples/l3fwd: Handle SIGINT and SIGTERM in l3fwd

Message ID 1451512791-5442-4-git-send-email-zhihong.wang@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers

Commit Message

Zhihong Wang Dec. 30, 2015, 9:59 p.m. UTC 
  Handle SIGINT and SIGTERM in l3fwd.

Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Acked-by: Michael Qiu <michael.qiu@intel.com>
---
 examples/l3fwd/main.c | 46 ++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 42 insertions(+), 4 deletions(-)

Comments

Ananyev, Konstantin Jan. 6, 2016, 1:51 p.m. UTC | #1 
> -----Original Message-----
> From: Wang, Zhihong
> Sent: Wednesday, December 30, 2015 10:00 PM
> To: dev@dpdk.org
> Cc: Ananyev, Konstantin; stephen@networkplumber.org; Qiu, Michael; Wang, Zhihong
> Subject: [PATCH v5 3/3] examples/l3fwd: Handle SIGINT and SIGTERM in l3fwd
> 
> Handle SIGINT and SIGTERM in l3fwd.
> 
> Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
> Acked-by: Michael Qiu <michael.qiu@intel.com>
> ---

Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
diff mbox

Patch

diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index 5b0c2dd..21a5782 100644
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -41,6 +41,8 @@ 
 #include <stdarg.h>
 #include <errno.h>
 #include <getopt.h>
+#include <signal.h>
+#include <stdbool.h>
 
 #include <rte_common.h>
 #include <rte_vect.h>
@@ -75,6 +77,8 @@ 
 #include <cmdline_parse.h>
 #include <cmdline_parse_etheraddr.h>
 
+static volatile bool force_quit;
+
 #define APP_LOOKUP_EXACT_MATCH          0
 #define APP_LOOKUP_LPM                  1
 #define DO_RFC_1812_CHECKS
@@ -1553,7 +1557,7 @@  main_loop(__attribute__((unused)) void *dummy)
 			portid, queueid);
 	}
 
-	while (1) {
+	while (!force_quit) {
 
 		cur_tsc = rte_rdtsc();
 
@@ -1781,6 +1785,8 @@  main_loop(__attribute__((unused)) void *dummy)
 
 		}
 	}
+
+	return 0;
 }
 
 static int
@@ -2516,8 +2522,12 @@  check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 	printf("\nChecking link status");
 	fflush(stdout);
 	for (count = 0; count <= MAX_CHECK_TIME; count++) {
+		if (force_quit)
+			return;
 		all_ports_up = 1;
 		for (portid = 0; portid < port_num; portid++) {
+			if (force_quit)
+				return;
 			if ((port_mask & (1 << portid)) == 0)
 				continue;
 			memset(&link, 0, sizeof(link));
@@ -2559,6 +2569,16 @@  check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 	}
 }
 
+static void
+signal_handler(int signum)
+{
+	if (signum == SIGINT || signum == SIGTERM) {
+		printf("\n\nSignal %d received, preparing to exit...\n",
+				signum);
+		force_quit = true;
+	}
+}
+
 int
 main(int argc, char **argv)
 {
@@ -2579,6 +2599,10 @@  main(int argc, char **argv)
 	argc -= ret;
 	argv += ret;
 
+	force_quit = false;
+	signal(SIGINT, signal_handler);
+	signal(SIGTERM, signal_handler);
+
 	/* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 		dest_eth_addr[portid] = ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
@@ -2733,12 +2757,26 @@  main(int argc, char **argv)
 
 	check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
 
+	ret = 0;
 	/* launch per-lcore init on every lcore */
 	rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
-		if (rte_eal_wait_lcore(lcore_id) < 0)
-			return -1;
+		if (rte_eal_wait_lcore(lcore_id) < 0) {
+			ret = -1;
+			break;
+		}
 	}
 
-	return 0;
+	/* stop ports */
+	for (portid = 0; portid < nb_ports; portid++) {
+		if ((enabled_port_mask & (1 << portid)) == 0)
+			continue;
+		printf("Closing port %d...", portid);
+		rte_eth_dev_stop(portid);
+		rte_eth_dev_close(portid);
+		printf(" Done\n");
+	}
+	printf("Bye...\n");
+
+	return ret;
 }