Add a '--list-options' option to each command.

[lttng-tools.git] / src / bin / lttng / commands / disable_events.c

diff --git a/src/bin/lttng/commands/disable_events.c b/src/bin/lttng/commands/disable_events.c
index e6c8b2d06971a18b901f4eb7a4364ac194e0d22d..ff42da0e001c552c6b6f49c3d9a58b3126ecc4c1 100644 (file)
--- a/src/bin/lttng/commands/disable_events.c
+++ b/src/bin/lttng/commands/disable_events.c
@@ -42,6 +42,7 @@ static pid_t opt_pid;
 enum {
        OPT_HELP = 1,
        OPT_USERSPACE,
+       OPT_LIST_OPTIONS,
 };
 
 static struct lttng_handle *handle;
@@ -60,6 +61,7 @@ static struct poptOption long_options[] = {
 #else
        {"userspace",      'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0},
 #endif
+       {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
        {0, 0, 0, 0, 0, 0, 0}
 };
 
@@ -71,6 +73,7 @@ static void usage(FILE *ofp)
        fprintf(ofp, "usage: lttng disable-event NAME[,NAME2,...] [options]\n");
        fprintf(ofp, "\n");
        fprintf(ofp, "  -h, --help               Show this help\n");
+       fprintf(ofp, "      --list-options       Simple listing of options\n");
        fprintf(ofp, "  -s, --session            Apply on session name\n");
        fprintf(ofp, "  -c, --channel            Apply on this channel\n");
        fprintf(ofp, "  -a, --all-events         Disable all tracepoints\n");
@@ -120,7 +123,7 @@ static int disable_events(char *session_name)
                dom.type = LTTNG_DOMAIN_UST;
        } else {
                ERR("Please specify a tracer (-k/--kernel or -u/--userspace)");
-               ret = CMD_NOT_IMPLEMENTED;
+               ret = CMD_UNDEFINED;
                goto error;
        }
 
@@ -152,7 +155,7 @@ static int disable_events(char *session_name)
 #if 0
                        if (opt_cmd_name != NULL || opt_pid) {
                                MSG("Only supporting tracing all UST processes (-u) for now.");
-                               ret = CMD_NOT_IMPLEMENTED;
+                               ret = CMD_UNDEFINED;
                                goto error;
                        }
 #endif
@@ -211,6 +214,10 @@ int cmd_disable_events(int argc, const char **argv)
                case OPT_USERSPACE:
                        opt_userspace = 1;
                        break;
+               case OPT_LIST_OPTIONS:
+                       list_cmd_options(stdout, long_options);
+                       ret = CMD_SUCCESS;
+                       goto end;
                default:
                        usage(stderr);
                        ret = CMD_UNDEFINED;