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{
    "id": 9665,
    "url": "http://patches.dpdk.org/api/patches/9665/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/1451011032-83106-3-git-send-email-zhihong.wang@intel.com/",
    "project": {
        "id": 1,
        "url": "http://patches.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<1451011032-83106-3-git-send-email-zhihong.wang@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1451011032-83106-3-git-send-email-zhihong.wang@intel.com",
    "date": "2015-12-25T02:37:11",
    "name": "[dpdk-dev,v2,2/3] examples/l2fwd: Handle SIGINT and SIGTERM in l2fwd",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "32c9ca225e8ebd79ed2aac66c42551a154bd377f",
    "submitter": {
        "id": 156,
        "url": "http://patches.dpdk.org/api/people/156/?format=api",
        "name": "Zhihong Wang",
        "email": "zhihong.wang@intel.com"
    },
    "delegate": null,
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/1451011032-83106-3-git-send-email-zhihong.wang@intel.com/mbox/",
    "series": [],
    "comments": "http://patches.dpdk.org/api/patches/9665/comments/",
    "check": "pending",
    "checks": "http://patches.dpdk.org/api/patches/9665/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 059A48E6A;\n\tFri, 25 Dec 2015 10:40:40 +0100 (CET)",
            "from mga04.intel.com (mga04.intel.com [192.55.52.120])\n\tby dpdk.org (Postfix) with ESMTP id 607445A89\n\tfor <dev@dpdk.org>; Fri, 25 Dec 2015 10:40:37 +0100 (CET)",
            "from orsmga002.jf.intel.com ([10.7.209.21])\n\tby fmsmga104.fm.intel.com with ESMTP; 25 Dec 2015 01:40:31 -0800",
            "from unknown (HELO dpdk5.sh.intel.com) ([10.239.129.244])\n\tby orsmga002.jf.intel.com with ESMTP; 25 Dec 2015 01:40:29 -0800"
        ],
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.20,478,1444719600\"; d=\"scan'208\";a=\"878462064\"",
        "From": "Zhihong Wang <zhihong.wang@intel.com>",
        "To": "dev@dpdk.org",
        "Date": "Thu, 24 Dec 2015 21:37:11 -0500",
        "Message-Id": "<1451011032-83106-3-git-send-email-zhihong.wang@intel.com>",
        "X-Mailer": "git-send-email 2.5.0",
        "In-Reply-To": "<1451011032-83106-1-git-send-email-zhihong.wang@intel.com>",
        "References": "<1451011032-83106-1-git-send-email-zhihong.wang@intel.com>",
        "Subject": "[dpdk-dev] [PATCH v2 2/3] examples/l2fwd: Handle SIGINT and SIGTERM\n\tin l2fwd",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "patches and discussions about DPDK <dev.dpdk.org>",
        "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Handle SIGINT and SIGTERM in l2fwd.\n\nSigned-off-by: Zhihong Wang <zhihong.wang@intel.com>\n---\n examples/l2fwd/main.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 60 insertions(+)",
    "diff": "diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c\nindex 720fd5a..75899dd 100644\n--- a/examples/l2fwd/main.c\n+++ b/examples/l2fwd/main.c\n@@ -44,6 +44,8 @@\n #include <ctype.h>\n #include <errno.h>\n #include <getopt.h>\n+#include <signal.h>\n+#include <unistd.h>\n \n #include <rte_common.h>\n #include <rte_log.h>\n@@ -69,6 +71,9 @@\n #include <rte_mempool.h>\n #include <rte_mbuf.h>\n \n+static int force_quit = -1;\n+static int signo_quit = -1;\n+\n #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1\n \n #define NB_MBUF   8192\n@@ -284,6 +289,8 @@ l2fwd_main_loop(void)\n \t}\n \n \twhile (1) {\n+\t\tif (unlikely(force_quit != 0))\n+\t\t\tbreak;\n \n \t\tcur_tsc = rte_rdtsc();\n \n@@ -534,6 +541,45 @@ check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)\n \t}\n }\n \n+static void\n+stop_ports(void)\n+{\n+\tunsigned portid, nb_ports;\n+\n+\tnb_ports = rte_eth_dev_count();\n+\tfor (portid = 0; portid < nb_ports; portid++) {\n+\t\tif ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {\n+\t\t\tcontinue;\n+\t\t}\n+\t\tprintf(\"Stopping port %d...\", portid);\n+\t\trte_eth_dev_stop(portid);\n+\t\trte_eth_dev_close(portid);\n+\t\tprintf(\" Done\\n\");\n+\t}\n+}\n+\n+static void\n+signal_handler(__rte_unused int signum)\n+{\n+\tif (signum == SIGINT || signum == SIGTERM) {\n+\t\tprintf(\"\\nSignal %d received, preparing to exit...\\n\",\n+\t\t\t\tsignum);\n+\t\tif (force_quit < 0) {\n+\t\t\tprintf(\"Forwarding not started yet...\\n\");\n+\t\t\t/* stop ports */\n+\t\t\tstop_ports();\n+\t\t\tprintf(\"Bye...\\n\");\n+\t\t\t/* inform if there's a caller */\n+\t\t\tsignal(signum, SIG_DFL);\n+\t\t\tkill(getpid(), signum);\n+\t\t} else {\n+\t\t\tprintf(\"Forwarding started already...\\n\");\n+\t\t\tsigno_quit = signum;\n+\t\t\tforce_quit = 1;\n+\t\t}\n+\t}\n+}\n+\n int\n main(int argc, char **argv)\n {\n@@ -546,6 +592,9 @@ main(int argc, char **argv)\n \tunsigned lcore_id, rx_lcore_id;\n \tunsigned nb_ports_in_mask = 0;\n \n+\tsignal(SIGINT, signal_handler);\n+\tsignal(SIGTERM, signal_handler);\n+\n \t/* init EAL */\n \tret = rte_eal_init(argc, argv);\n \tif (ret < 0)\n@@ -697,11 +746,22 @@ main(int argc, char **argv)\n \tcheck_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);\n \n \t/* launch per-lcore init on every lcore */\n+\tforce_quit = 0;\n \trte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER);\n \tRTE_LCORE_FOREACH_SLAVE(lcore_id) {\n \t\tif (rte_eal_wait_lcore(lcore_id) < 0)\n \t\t\treturn -1;\n \t}\n \n+\tprintf(\"Stopping forwarding... Done\\n\");\n+\t/* stop ports */\n+\tstop_ports();\n+\tprintf(\"Bye...\\n\");\n+\t/* inform if there's a caller */\n+\tif (force_quit != 0) {\n+\t\tsignal(signo_quit, SIG_DFL);\n+\t\tkill(getpid(), signo_quit);\n+\t}\n+\n \treturn 0;\n }\n",
    "prefixes": [
        "dpdk-dev",
        "v2",
        "2/3"
    ]
}