int Lua_AddVirtualChannel(lua_State *L)
{
size_t args = lua_gettop(L);
if (args < 2) return 0;
ChannelConfig cc;
strlcpy(cc.label, lua_tostring(L, 1), DEFAULT_LABEL_LENGTH);
cc.sampleRate = encodeSampleRate((unsigned short) lua_tointeger(L, 2));
cc.precision = args >= 3 ? lua_tointeger(L, 3) :
DEFAULT_CHANNEL_LOGGING_PRECISION;
cc.min = args >= 4 ? lua_tointeger(L, 4) : DEFAULT_CHANNEL_MIN;
cc.max = args >= 5 ? lua_tointeger(L, 5) : DEFAULT_CHANNEL_MAX;
strlcpy(cc.units, args >=6 ? lua_tostring(L, 6) : DEFAULT_CHANNEL_UNITS,
DEFAULT_UNITS_LENGTH);
lua_pushinteger(L, create_virtual_channel(cc));
return 1;
}
static const jsmntok_t * setChannelConfig(Serial *serial, const jsmntok_t *cfg, ChannelConfig *channelCfg, setExtField_func setExtField, void *extCfg){
if (cfg->type == JSMN_OBJECT && cfg->size % 2 == 0){
int size = cfg->size;
cfg++;
for (int i = 0; i < size; i += 2 ){
const jsmntok_t *nameTok = cfg;
jsmn_trimData(nameTok);
cfg++;
const jsmntok_t *valueTok = cfg;
cfg++;
if (valueTok->type == JSMN_PRIMITIVE || valueTok->type == JSMN_STRING) jsmn_trimData(valueTok);
char *name = nameTok->data;
char *value = valueTok->data;
unescapeTextField(value);
if (NAME_EQU("nm",name)) setLabelGeneric(channelCfg->label, value);
else if (NAME_EQU("ut", name)) setLabelGeneric(channelCfg->units, value);
else if (NAME_EQU("sr", name)) channelCfg->sampleRate = encodeSampleRate(modp_atoi(value));
else if (setExtField != NULL) cfg = setExtField(valueTok, name, value, extCfg);
}
}
return cfg;
}
