[Jack-Devel] [PATCH 2/3] add usage() to jack_midi_dump
Signed-off-by: Robin Gareus <[hidden]>
---
example-clients/midi_dump.c | 28 ++++++++++++++++++++++++++--
1 file changed, 26 insertions(+), 2 deletions(-)
diff --git a/example-clients/midi_dump.c b/example-clients/midi_dump.c
index 092af99..451c826 100644
--- a/example-clients/midi_dump.c
+++ b/example-clients/midi_dump.c
@@ -101,6 +101,28 @@ static void wearedone(int sig) {
keeprunning = 0;
}
+static void usage (int status) {
+ printf ("jack_midi_dump - JACK MIDI Monitor.\n\n");
+ printf ("Usage: jack_midi_dump [ OPTIONS ] [CLIENT-NAME]\n\n");
+ printf ("Options:\n\
+ -a use absoute timestamps relative to application start\n\
+ -h display this help and exit\n\
+ -r use relative timestamps to previous MIDI event\n\
+\n");
+ printf ("\n\
+This tool listens for MIDI events on a JACK MIDI port and prints\n\
+the message to stdout.\n\
+\n\
+Note that this tool is not realtime-safe. The events are printed\n\
+directly from the process() callback!\n\
+\n\
+If no client name is given it defaults to 'midi-monitor'.\n\
+\n\
+See also: jackd(1)\n\
+\n");
+ exit (status);
+}
+
int
main (int argc, char* argv[])
{
@@ -112,8 +134,10 @@ main (int argc, char* argv[])
int cn = 1;
if (argc > 1) {
- if (!strcmp(argv[1], "-a")) { time_format = 1; cn = 2; }
- if (!strcmp(argv[1], "-r")) { time_format = 2; cn = 2; }
+ if (!strcmp (argv[1], "-a")) { time_format = 1; cn = 2; }
+ else if (!strcmp (argv[1], "-r")) { time_format = 2; cn = 2; }
+ else if (!strcmp (argv[1], "-h")) { usage (EXIT_SUCCESS); }
+ else if (argv[1][0] == '-') { usage (EXIT_FAILURE); }
}
if (argc > cn) {
--
1.7.10.4
1388494618.17251_0.ltw:2, <1388494607-1336-3-git-send-email-robin at gareus dot org>