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#include <string.h>
#include "artnet.h"
#define BACKEND_NAME "artnet"
static uint8_t default_net = 0;
int artnet_init(){
backend artnet = {
.name = BACKEND_NAME,
.conf = artnet_configure,
.create = artnet_instance,
.conf_instance = artnet_configure_instance,
.channel = artnet_channel,
.handle = artnet_set,
.process = artnet_handle,
.start = artnet_start,
.shutdown = artnet_shutdown
};
//register backend
if(mm_backend_register(artnet)){
fprintf(stderr, "Failed to register ArtNet backend\n");
return 1;
}
return 0;
}
static int artnet_configure(char* option, char* value){
if(!strcmp(option, "bind")){
//TODO create socket, hand over to be managed (unregister previous socket?)
return 0;
}
else if(!strcmp(option, "net")){
//configure default net
default_net = strtoul(value, NULL, 10);
return 0;
}
fprintf(stderr, "Unknown ArtNet backend option %s\n", option);
return 1;
}
static instance* artnet_instance(){
instance* inst = mm_instance();
if(!inst){
return NULL;
}
inst->impl = calloc(1, sizeof(artnet_instance_data));
if(!inst->impl){
fprintf(stderr, "Failed to allocate memory\n");
return NULL;
}
return inst;
}
static int artnet_configure_instance(instance* instance, char* option, char* value){
artnet_instance_data* data = (artnet_instance_data*) instance->impl;
if(!strcmp(option, "net")){
data->net = strtoul(value, NULL, 10);
return 0;
}
else if(!strcmp(option, "uni")){
data->uni = strtoul(value, NULL, 10);
return 0;
}
else if(!strcmp(option, "output")){
if(!strcmp(value, "true")){
data->mode |= MODE_OUTPUT;
}
else{
data->mode &= ~MODE_OUTPUT;
}
return 0;
}
fprintf(stderr, "Unknown ArtNet instance option %s\n", option);
return 1;
}
static channel* artnet_channel(instance* instance, char* spec){
unsigned channel = strtoul(spec, NULL, 10);
if(channel > 512 || channel < 1){
fprintf(stderr, "Invalid ArtNet channel %s\n", spec);
return NULL;
}
return mm_channel(instance, channel);
}
static int artnet_set(size_t num, channel* c, channel_value* v){
//TODO
return 1;
}
static int artnet_handle(size_t num, int* fd, void** data){
//TODO
return 1;
}
static int artnet_start(){
//TODO
return 1;
}
static int artnet_shutdown(){
size_t n, p;
instance** inst = NULL;
if(mm_backend_instances(BACKEND_NAME, &n, &inst)){
fprintf(stderr, "Failed to fetch instance list\n");
return 1;
}
for(p = 0; p < n; p++){
free(inst[p]->impl);
}
free(inst);
fprintf(stderr, "ArtNet backend shut down\n");
return 0;
}
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