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/*
Copyright (C) 2007 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <jack/jack.h>
#include <jack/metadata.h>
#include <jack/uuid.h>
void
port_callback (jack_port_id_t port, int yn, void* arg)
{
printf ("Port %d %s\n", port, (yn ? "registered" : "unregistered"));
}
void
connect_callback (jack_port_id_t a, jack_port_id_t b, int yn, void* arg)
{
printf ("Ports %d and %d %s\n", a, b, (yn ? "connected" : "disconnected"));
}
void
client_callback (const char* client, int yn, void* arg)
{
printf ("Client %s %s\n", client, (yn ? "registered" : "unregistered"));
}
int
graph_callback (void* arg)
{
printf ("Graph reordered\n");
return 0;
}
void
propchange (jack_uuid_t subject, const char* key, jack_property_change_t change)
{
char buf[JACK_UUID_STRING_SIZE];
const char* action = "";
switch (change) {
case PropertyCreated:
action = "created";
break;
case PropertyChanged:
action = "changed";
break;
case PropertyDeleted:
action = "deleted";
break;
}
if (jack_uuid_empty (subject)) {
printf ("All properties changed!\n");
} else {
jack_uuid_unparse (subject, buf);
if (key) {
printf ("key [%s] for %s %s\n", key, buf, action);
} else {
printf ("all keys for %s %s\n", buf, action);
}
}
}
int
main (int argc, char *argv[])
{
jack_client_t *client;
jack_options_t options = JackNullOption;
jack_status_t status;
if ((client = jack_client_open ("event-monitor", options, &status, NULL)) == 0) {
fprintf (stderr, "jack_client_open() failed, "
"status = 0x%2.0x\n", status);
if (status & JackServerFailed) {
fprintf (stderr, "Unable to connect to JACK server\n");
}
return 1;
}
if (jack_set_port_registration_callback (client, port_callback, NULL)) {
fprintf (stderr, "cannot set port registration callback\n");
return 1;
}
if (jack_set_port_connect_callback (client, connect_callback, NULL)) {
fprintf (stderr, "cannot set port connect callback\n");
return 1;
}
if (jack_set_client_registration_callback (client, client_callback, NULL)) {
fprintf (stderr, "cannot set client registration callback\n");
return 1;
}
if (jack_set_graph_order_callback (client, graph_callback, NULL)) {
fprintf (stderr, "cannot set graph order registration callback\n");
return 1;
}
if (jack_set_property_change_callback (client, (JackPropertyChangeCallback) propchange, 0)) {
fprintf (stderr, "cannot set property change callback\n");
return 1;
}
if (jack_activate (client)) {
fprintf (stderr, "cannot activate client");
return 1;
}
sleep (-1);
exit (0);
}
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