86 lines
2.0 KiB
C
86 lines
2.0 KiB
C
/*
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* freewheel - start/stop JACK "freewheeling" mode
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*
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* Copyright (C) 2003 Paul Davis.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#include <jack/jack.h>
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#include <jack/transport.h>
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char *package; /* program name */
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jack_client_t *client;
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int onoff;
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static void jack_shutdown(void *arg)
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{
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fprintf(stderr, "JACK shut down, exiting ...\n");
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exit(1);
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}
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static void signal_handler(int sig)
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{
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jack_client_close(client);
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fprintf(stderr, "signal received, exiting ...\n");
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exit(0);
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}
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static void parse_arguments(int argc, char *argv[])
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{
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if (argc < 2) {
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fprintf(stderr, "usage: %s y|n\n", package);
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exit(9);
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}
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if (argv[1][0] == 'y' || argv[1][0] == 'Y' || argv[1][0] == '1') {
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onoff = 1;
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} else {
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onoff = 0;
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}
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}
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int
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main (int argc, char *argv[])
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{
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parse_arguments (argc, argv);
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/* become a JACK client */
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if ((client = jack_client_open ("freewheel", JackNullOption, NULL)) == 0) {
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fprintf (stderr, "JACK server not running?\n");
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exit(1);
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}
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signal (SIGQUIT, signal_handler);
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signal (SIGTERM, signal_handler);
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signal (SIGHUP, signal_handler);
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signal (SIGINT, signal_handler);
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jack_on_shutdown (client, jack_shutdown, 0);
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if (jack_set_freewheel (client, onoff)) {
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fprintf (stderr, "failed to reset freewheel mode\n");
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}
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jack_client_close(client);
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return 0;
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}
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