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blobcli: require option for block device name

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Used to be hardcoded, now is a required cmd line parm that
needs to be provided regardless of mode.

Change-Id: Ieac9ce309172a50ccfd27effde5a5846f9bfec17
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/383031
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Paul Luse 2017-10-18 15:49:39 -07:00 committed by Jim Harris
parent 98a2ec3e5a
commit cfa4cae06d
1 changed files with 26 additions and 8 deletions

34
examples/blob/cli/blobcli.c

@ -53,8 +53,6 @@ static void cli_start(void *arg1, void *arg2);
static const char *program_name = "blobcli";
/* default name for .conf file, any name can be used however with -c switch */
static const char *program_conf = "blobcli.conf";
/* default name for the first NVMe device, this needs to match what is in th conf */
static const char *bdev_name = "Nvme0n1";
/*
* CMD mode runs one command at a time which can be annoying as the init takes
@ -116,7 +114,7 @@ struct cli_context_t {
char file[BUFSIZE + 1];
uint64_t filesize;
int fill_value;
const char *bdev_name;
char bdev_name[BUFSIZE];
int rc;
int num_clusters;
enum cli_mode_type cli_mode;
@ -147,6 +145,7 @@ static void
print_cmds(void)
{
printf("\nCommands include:\n");
printf("\t-b bdev - name of the block device to use (example: Nvme0n1)\n");
printf("\t-d <blobid> filename - dump contents of a blob to a file\n");
printf("\t-f <blobid> value - fill a blob with a decimal value\n");
printf("\t-h - this help screen\n");
@ -970,9 +969,20 @@ cmd_parser(int argc, char **argv, struct cli_context_t *cli_context)
int cmd_chosen = 0;
char resp;
bool cfg_specified = false;
bool bdev_specified = false;
while ((op = getopt(argc, argv, "c:d:f:hil:m:n:p:r:s:ST:Xx:")) != -1) {
while ((op = getopt(argc, argv, "b:c:d:f:hil:m:n:p:r:s:ST:Xx:")) != -1) {
switch (op) {
case 'b':
if (strcmp(cli_context->bdev_name, "") == 0) {
cmd_chosen++;
bdev_specified = true;
snprintf(cli_context->bdev_name, BUFSIZE, "%s", optarg);
} else {
printf("Current setting for -b is: %s\n", cli_context->bdev_name);
usage(cli_context, "ERROR: -b option can only be set once.\n");
}
break;
case 'c':
if (cli_context->app_started == false) {
cmd_chosen++;
@ -1118,8 +1128,8 @@ cmd_parser(int argc, char **argv, struct cli_context_t *cli_context)
default:
usage(cli_context, "ERROR: invalid option\n");
}
/* config file is the only option that can be combined */
if (cfg_specified == false && cmd_chosen > 1) {
/* only a few options can be combined */
if ((!cfg_specified && !bdev_specified) && cmd_chosen > 1) {
usage(cli_context, "Error: Please choose only one command\n");
}
}
@ -1128,6 +1138,15 @@ cmd_parser(int argc, char **argv, struct cli_context_t *cli_context)
usage(cli_context, "Error: Please choose a command.\n");
}
/*
* We don't check the local boolean because in some modes it will have been set
* on and earlier command.
*/
if (strcmp(cli_context->bdev_name, "") == 0) {
usage(cli_context, "Error: -b option is required.\n");
cmd_chosen = 0;
}
/* in shell mode we'll call getopt multiple times so need to reset its index */
optind = 0;
return (cmd_chosen > 0);
@ -1398,10 +1417,9 @@ main(int argc, char **argv)
printf("ERROR: could not allocate context structure\n");
exit(-1);
}
cli_context->bdev_name = bdev_name;
/* default to CMD mode until we've parsed the first parms */
cli_context->cli_mode = CLI_MODE_CMD;
cli_context->argv[0] = strdup(argv[0]);
cli_context->argc = 1;