[PATCH] Show allowed option values for string matching

[fio.git] / parse.c

diff --git a/parse.c b/parse.c
index 2e8a2a520f3906a66e608a7900f02c7a8f534221..5347f675b07e6d7a88d6a6ade63bbcd0574f129b 100644 (file)
--- a/parse.c
+++ b/parse.c
@@ -366,6 +366,38 @@ int parse_option(const char *opt, struct fio_option *options, void *data)
        return 1;
 }
 
+static void show_option_range(struct fio_option *o)
+{
+       if (!o->minval && !o->maxval)
+               return;
+
+       printf("%16s: min=%d, max=%d\n", "range", o->minval, o->maxval);
+}
+
+static void show_option_values(struct fio_option *o)
+{
+       const char *msg;
+       int i = 0;
+
+       if (!o->posval)
+               return;
+
+       do {
+               msg = o->posval[i];
+               if (!msg)
+                       break;
+
+               if (!i)
+                       printf("%16s: ", "valid values");
+
+               printf("%s,", msg);
+               i++;
+       } while (1);
+
+       if (i)
+               printf("\n");
+}
+
 int show_cmd_help(struct fio_option *options, const char *name)
 {
        int show_all = !strcmp(name, "all");
@@ -391,6 +423,8 @@ int show_cmd_help(struct fio_option *options, const char *name)
                        if (match) {
                                printf("%16s: %s\n", "type", typehelp[o->type]);
                                printf("%16s: %s\n", "default", o->def ? o->def : "no default");
+                               show_option_range(o);
+                               show_option_values(o);
                        }
                }