From d373b5cd72bd352646a1454a1f3273c67eb5ba25 Mon Sep 17 00:00:00 2001 From: Pierre-Marc Fournier Date: Fri, 8 May 2009 17:03:42 -0400 Subject: [PATCH] ust: improve cmd line arg help, add --help and -h --- ust/ust.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/ust/ust.c b/ust/ust.c index 2f7a6bd..8752dbd 100644 --- a/ust/ust.c +++ b/ust/ust.c @@ -34,10 +34,12 @@ int parse_opts_long(int argc, char **argv, struct ust_opts *opts) {"enable-marker", 1, 0, 1007}, {"disable-marker", 1, 0, 1008}, {"start", 0, 0, 1009}, + {"help", 0, 0, 'h'}, + {"version", 0, 0, 1010}, {0, 0, 0, 0} }; - c = getopt_long(argc, argv, "", long_options, &option_index); + c = getopt_long(argc, argv, "h", long_options, &option_index); if (c == -1) break; @@ -71,6 +73,11 @@ int parse_opts_long(int argc, char **argv, struct ust_opts *opts) case 1008: asprintf(&opts->cmd, "disable_marker %s", optarg); break; + case 'h': + usage(); + exit(0); + case 1010: + printf("Version 0\n"); default: /* unknown option or other error; error is printed by getopt, just return */ @@ -96,16 +103,16 @@ char *progname = NULL; void usage(void) { - fprintf(stderr, "usage: %s [OPTIONS] OPERATION PID...\n", progname); + fprintf(stderr, "usage: %s [OPTIONS] COMMAND PID...\n", progname); fprintf(stderr, "\nControl the tracing of a process that supports LTTng Userspace Tracing.\n\ \n\ -Operations:\n\ -\t--start-trace\tStart tracing\n\ -\t--stop-trace\tStop tracing\n\ -\t--destroy-trace\tDestroy the trace\n\ -\t--enable-marker CHANNEL_NAME/MARKER_NAME\tEnable a marker\n\ -\t--disable-marker CHANNEL_NAME/MARKER_NAME\tDisable a marker\n\ -\t--list-markers\tList the markers of the process and their state\n\ +Commands:\n\ + --start-trace\t\t\tStart tracing\n\ + --stop-trace\t\t\tStop tracing\n\ + --destroy-trace\t\t\tDestroy the trace\n\ + --enable-marker CHANNEL/MARKER\tEnable a marker\n\ + --disable-marker CHANNEL/MARKER\tDisable a marker\n\ + --list-markers\tList the markers of the process and their state\n\ \n\ "); } -- 2.34.1