t/btrace2fio: add ability to add specific options through -a

Can be used multiple times to add more options.

Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/t/btrace2fio.c b/t/btrace2fio.c
index fc1e4c786df848589272c73600b13840f489d29f..d0b7e091aa9bbff6dd2d61bc220e265d72d52c6e 100644 (file)
--- a/t/btrace2fio.c
+++ b/t/btrace2fio.c
@@ -24,6 +24,9 @@ static unsigned int max_depth = 256;
 static int output_ascii = 1;
 static char *filename;
 
+static char **add_opts;
+static int n_add_opts;
+
 /*
  * Collapse defaults
  */
@@ -752,6 +755,10 @@ static int __output_p_fio(struct btrace_pid *p, unsigned long *ios)
                printf("\n");
        }
 
+       if (n_add_opts)
+               for (i = 0; i < n_add_opts; i++)
+                       printf("%s\n", add_opts[i]);
+
        printf("\n");
        return 0;
 }
@@ -1020,6 +1027,7 @@ static int usage(char *argv[])
        log_err("\t-c\tCollapse \"identical\" jobs (def=%u)\n", collapse_entries);
        log_err("\t-u\tDepth difference for collapse (def=%u)\n", depth_diff);
        log_err("\t-x\tRandom difference for collapse (def=%u)\n", random_diff);
+       log_err("\t-a\tAdditional fio option to add to job file\n");
        return 1;
 }
 
@@ -1075,7 +1083,7 @@ int main(int argc, char *argv[])
        if (argc < 2)
                return usage(argv);
 
-       while ((c = getopt(argc, argv, "t:n:fd:r:RD:c:u:x:")) != -1) {
+       while ((c = getopt(argc, argv, "t:n:fd:r:RD:c:u:x:a:")) != -1) {
                switch (c) {
                case 'R':
                        set_rate = 1;
@@ -1107,6 +1115,11 @@ int main(int argc, char *argv[])
                case 'x':
                        random_diff = atoi(optarg);
                        break;
+               case 'a':
+                       add_opts = realloc(add_opts, (n_add_opts + 1) * sizeof(char *));
+                       add_opts[n_add_opts] = strdup(optarg);
+                       n_add_opts++;
+                       break;
                case '?':
                default:
                        return usage(argv);