/* queue a note-off event by patch id */
void mixer_note_off_with_id(int id, int note)
{
writer->type = MIXER_NOTEOFF_WITH_ID;
writer->ticks = jack_last_frame_time(jc);
writer->id_note.id = id;
writer->id_note.note = note;
advance_writer();
}
/* queue a note-off event */
void mixer_note_off(int chan, int note)
{
writer->type = MIXER_NOTEOFF;
writer->ticks = jack_last_frame_time(jc);
writer->note.chan = chan;
writer->note.note = note;
advance_writer();
}
void add_message(message *msg) {
msg->deadline = get_deadline(deadline);
pthread_mutex_lock(&write_lock);
assert(input_ring[write_ipos] == 0);
input_ring[write_ipos] = msg;
advance_writer();
pthread_mutex_unlock(&write_lock);
}
/* queue control change event */
void mixer_control(int chan, int param, float value)
{
writer->type = MIXER_CONTROL;
writer->ticks = jack_last_frame_time(jc);
writer->control.chan = chan;
writer->control.param = param;
writer->control.value = value;
advance_writer();
}
/* queue a note-on event by patch id */
void mixer_note_on_with_id(int id, int note, float vel)
{
writer->type = MIXER_NOTEON_WITH_ID;
writer->ticks = jack_last_frame_time(jc);
writer->id_note.id = id;
writer->id_note.note = note;
writer->id_note.vel = vel;
advance_writer();
}
/* queue a note-on event */
void mixer_note_on(int chan, int note, float vel)
{
writer->type = MIXER_NOTEON;
writer->ticks = jack_last_frame_time(jc);
writer->note.chan = chan;
writer->note.note = note;
writer->note.vel = vel;
advance_writer();
}
void * read_messages(){
int addr_len, numbytes;
int status;
char buf[BUFFER_LEN];
struct msg *last_message;
struct sockaddr_in server_address;
struct sockaddr_in client_addr;
int sockfd;
/* Inicializacion de servidor */
server_address.sin_family = AF_INET;
server_address.sin_port = htons(listen_port);
server_address.sin_addr.s_addr = INADDR_ANY;
bzero(&(server_address.sin_zero), 8);
/* Socket */
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
if (sockfd == -1) { perror("socket"); exit(1); }
/* bind */
status = bind(sockfd
,(struct sockaddr *)&server_address
,sizeof(struct sockaddr));
if (status == -1) { perror("bind"); exit(2); }
addr_len = sizeof(struct sockaddr);
/* Ciclo indefinido de lectura de socket y escritura en buffer */
while(1) {
numbytes = recvfrom(sockfd, buf,
BUFFER_LEN, 0,
(struct sockaddr *)&client_addr,
(socklen_t *)&addr_len);
if ( numbytes == -1 ) {
perror("recvfrom");
exit(3);
}
buf[numbytes] = '\0';
/* Obtener posicion de escritura para el buffer circular */
last_message = (struct msg*) get_writer(cb);
/* Modificar en memoria */
last_message->in_out = buf[0];
last_message->car_id = atoi(&buf[1]);
/* Copiar direccion del cliente que envia */
memcpy(&last_message->client,&client_addr,sizeof(struct sockaddr_in));
advance_writer(&cb);
}
}