lo_server_thread lo_server_thread_new_multicast(const char *group, const char *port,
lo_err_handler err_h)
{
lo_server_thread st = malloc(sizeof(struct _lo_server_thread));
st->s = lo_server_new_multicast(group, port, err_h);
st->active = 0;
st->done = 0;
if (!st->s) {
free(st);
return NULL;
}
return st;
}
void test_multicast(lo_server_thread st)
{
/* test multicast server and sender */
/* message is sent from st otherwise reply doesn't work */
lo_server ms = lo_server_new_multicast("224.0.1.1", "15432", error);
lo_address ma = lo_address_new("224.0.1.1", "15432");
lo_address_set_ttl(ma, 1);
lo_server_add_method(ms, "/foo/bar", "fi", foo_handler, ms);
lo_server_add_method(ms, "/reply", "s", reply_handler, NULL);
if (lo_send_from(ma, lo_server_thread_get_server(st), LO_TT_IMMEDIATE,
"/foo/bar", "ff", 0.12345678f, 23.0f) == -1) {
printf("multicast send error %d: %s\n", lo_address_errno(ma), lo_address_errstr(ma));
exit(1);
}
TEST(lo_server_recv(ms)==24);
lo_server_free(ms);
lo_address_free(ma);
}
// *********************************************************
// -(new)---------------------------------------------------
void *oscmulticast_new(t_symbol *s, int argc, t_atom *argv)
{
t_oscmulticast *x = NULL;
int i, got_port = 0;
char address[64];
#ifdef MAXMSP
if ((x = object_alloc(oscmulticast_class))) {
x->outlet3 = listout((t_object *)x);
x->outlet2 = listout((t_object *)x);
x->outlet1 = listout((t_object *)x);
#else
if (x = (t_oscmulticast *) pd_new(oscmulticast_class)) {
x->outlet1 = outlet_new(&x->ob, gensym("list"));
x->outlet2 = outlet_new(&x->ob, gensym("list"));
x->outlet3 = outlet_new(&x->ob, gensym("list"));
#endif
x->group = NULL;
x->iface = NULL;
if (argc < 4) {
post("oscmulticast: not enough arguments!\n");
return NULL;
}
for (i = 0; i < argc; i++) {
if(strcmp(maxpd_atom_get_string(argv+i), "@group") == 0) {
if ((argv+i+1)->a_type == A_SYM) {
x->group = strdup(maxpd_atom_get_string(argv+i+1));
i++;
}
}
else if (strcmp(maxpd_atom_get_string(argv+i), "@port") == 0) {
if ((argv+i+1)->a_type == A_FLOAT) {
snprintf(x->port, 10, "%i", (int)maxpd_atom_get_float(argv+i+1));
got_port = 1;
i++;
}
#ifdef MAXMSP
else if ((argv+i+1)->a_type == A_LONG) {
snprintf(x->port, 10, "%i", (int)atom_getlong(argv+i+1));
got_port = 1;
i++;
}
#endif
}
else if(strcmp(maxpd_atom_get_string(argv+i), "@interface") == 0) {
if ((argv+i+1)->a_type == A_SYM) {
x->iface = strdup(maxpd_atom_get_string(argv+i+1));
i++;
}
}
}
if (!x->group || !got_port) {
post("oscmulticast: need to specify group and port!");
return NULL;
}
/* Open address */
snprintf(address, 64, "osc.udp://%s:%s", x->group, x->port);
x->address = lo_address_new_from_url(address);
if (!x->address) {
post("oscmulticast: could not create lo_address.");
return NULL;
}
/* Set TTL for packet to 1 -> local subnet */
lo_address_set_ttl(x->address, 1);
/* Specify the interface to use for multicasting */
if (x->iface) {
if (lo_address_set_iface(x->address, x->iface, 0)) {
post("oscmulticast: could not create lo_address.");
return NULL;
}
x->server = lo_server_new_multicast_iface(x->group, x->port, x->iface, 0, 0);
}
else {
x->server = lo_server_new_multicast(x->group, x->port, 0);
}
if (!x->server) {
post("oscmulticast: could not create lo_server");
lo_address_free(x->address);
return NULL;
}
// Disable liblo message queueing
lo_server_enable_queue(x->server, 0, 1);
if (x->iface)
post("oscmulticast: using interface %s", lo_address_get_iface(x->address));
else
post("oscmulticast: using default interface");
lo_server_add_method(x->server, NULL, NULL, oscmulticast_handler, x);
#ifdef MAXMSP
x->clock = clock_new(x, (method)oscmulticast_poll); // Create the timing clock
#else
x->clock = clock_new(x, (t_method)oscmulticast_poll);
#endif
clock_delay(x->clock, INTERVAL); // Set clock to go off after delay
}
return (x);
}
// *********************************************************
// -(free)--------------------------------------------------
void oscmulticast_free(t_oscmulticast *x)
{
if (x->clock) {
clock_unset(x->clock); // Remove clock routine from the scheduler
clock_free(x->clock); // Frees memory used by clock
}
if (x->server) {
lo_server_free(x->server);
}
if (x->address) {
lo_address_free(x->address);
}
if (x->iface) {
free(x->iface);
}
if (x->group) {
free(x->group);
}
}
// *********************************************************
// -(inlet/outlet assist - maxmsp only)---------------------
#ifdef MAXMSP
void oscmulticast_assist(t_oscmulticast *x, void *b, long m, long a, char *s)
{
if (m == ASSIST_INLET) { // inlet
sprintf(s, "OSC to be sent to multicast bus");
}
else { // outlet
sprintf(s, "OSC from multicast bus");
}
}
#endif
// *********************************************************
// -(interface)---------------------------------------------
static void oscmulticast_interface(t_oscmulticast *x, t_symbol *s, int argc, t_atom *argv)
{
const char *iface = 0;
if (argc < 1)
return;
if (argv->a_type != A_SYM)
return;
iface = maxpd_atom_get_string(argv);
if (lo_address_set_iface(x->address, iface, 0)) {
post("oscmulticast: could not create lo_address.");
return;
}
if (x->server)
lo_server_free(x->server);
x->server = lo_server_new_multicast_iface(x->group, x->port, iface, 0, 0);
if (!x->server) {
post("oscmulticast: could not create lo_server");
return;
}
post("oscmulticast: using interface %s", lo_address_get_iface(x->address));
lo_server_add_method(x->server, NULL, NULL, oscmulticast_handler, x);
}
// *********************************************************
// -(anything)----------------------------------------------
void oscmulticast_anything(t_oscmulticast *x, t_symbol *s, int argc, t_atom *argv)
{
lo_message m = lo_message_new();
if (!m) {
post("lo_message_new() error");
return;
}
int i;
for (i=0; i<argc; i++)
{
switch ((argv + i)->a_type)
{
case A_FLOAT:
lo_message_add_float(m, atom_getfloat(argv + i));
break;
#ifdef MAXMSP
case A_LONG:
lo_message_add_int32(m, (int)atom_getlong(argv + i));
break;
#endif
case A_SYM:
lo_message_add_string(m, maxpd_atom_get_string(argv + i));
break;
}
}
//set timetag?
lo_send_message(x->address, s->s_name, m);
lo_message_free(m);
}
