115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
/*
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Copyright (C) 2007 Paul Davis
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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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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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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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#ifndef WIN32
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#include <unistd.h>
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#endif
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#include <string.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <jack/jack.h>
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jack_client_t *client;
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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
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port_callback (jack_port_id_t port, int yn, void* arg)
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{
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printf ("Port %d %s\n", port, (yn ? "registered" : "unregistered"));
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}
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static void
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connect_callback (jack_port_id_t a, jack_port_id_t b, int yn, void* arg)
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{
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printf ("Ports %d and %d %s\n", a, b, (yn ? "connected" : "disconnected"));
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}
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static void
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client_callback (const char* client, int yn, void* arg)
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{
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printf ("Client %s %s\n", client, (yn ? "registered" : "unregistered"));
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}
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static int
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graph_callback (void* arg)
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{
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printf ("Graph reordered\n");
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return 0;
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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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jack_options_t options = JackNullOption;
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jack_status_t status;
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if ((client = jack_client_open ("event-monitor", options, &status, NULL)) == 0) {
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fprintf (stderr, "jack_client_open() failed, "
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"status = 0x%2.0x\n", status);
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if (status & JackServerFailed) {
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fprintf (stderr, "Unable to connect to JACK server\n");
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}
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return 1;
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}
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if (jack_set_port_registration_callback (client, port_callback, NULL)) {
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fprintf (stderr, "cannot set port registration callback\n");
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return 1;
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}
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if (jack_set_port_connect_callback (client, connect_callback, NULL)) {
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fprintf (stderr, "cannot set port connect callback\n");
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return 1;
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}
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if (jack_set_client_registration_callback (client, client_callback, NULL)) {
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fprintf (stderr, "cannot set client registration callback\n");
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return 1;
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}
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if (jack_set_graph_order_callback (client, graph_callback, NULL)) {
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fprintf (stderr, "cannot set graph order registration callback\n");
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return 1;
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}
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if (jack_activate (client)) {
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fprintf (stderr, "cannot activate client");
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return 1;
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}
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#ifdef WIN32
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signal(SIGINT, signal_handler);
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signal(SIGABRT, signal_handler);
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signal(SIGTERM, signal_handler);
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#else
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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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#endif
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sleep (-1);
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exit (0);
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}
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