[dpdk-dev] [RFC 6/7] l2fwd: rework long options parsing

[Olivier Matz]

Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
 examples/l2fwd/main.c | 26 ++++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c
index 41ac1e1..028900b 100644
--- a/examples/l2fwd/main.c
+++ b/examples/l2fwd/main.c
@@ -376,6 +376,24 @@ l2fwd_parse_timer_period(const char *q_arg)
        return n;
 }

+static const char short_options[] =
+       "p:"  /* portmask */
+       "q:"  /* number of queues */
+       "T:"  /* timer period */
+       ;
+
+enum {
+       /* long options mapped to a short option */
+
+       /* first long only option value must be >= 256, so that we won't
+        * conflict with short options */
+       CMD_LINE_OPT_MIN_NUM = 256,
+};
+
+static const struct option lgopts[] = {
+       {NULL, 0, 0, 0}
+};
+
 /* Parse the argument given in the command line of the application */
 static int
 l2fwd_parse_args(int argc, char **argv)
@@ -384,9 +402,6 @@ l2fwd_parse_args(int argc, char **argv)
        char **argvopt;
        int option_index;
        char *prgname = argv[0];
-       static struct option lgopts[] = {
-               {NULL, 0, 0, 0}
-       };

        argvopt = argv;

@@ -425,11 +440,6 @@ l2fwd_parse_args(int argc, char **argv)
                        timer_period = timer_secs;
                        break;

-               /* long options */
-               case 0:
-                       l2fwd_usage(prgname);
-                       return -1;
-
                default:
                        l2fwd_usage(prgname);
                        return -1;
-- 
2.8.1