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// +build darwin
package devices
import (
"bytes"
"encoding/csv"
"github.com/shirou/gopsutil/host"
"io"
)
// All possible thermometers
func devs() []string {
// Did we already populate the sensorMap?
if sensorMap != nil {
return defs()
}
// Otherwise, get the sensor data from the system & filter it
ids := loadIDs()
sensors, err := host.SensorsTemperatures()
if err != nil {
// FIXME log an error here
return []string{}
}
rv := make([]string, 0, len(sensors))
sensorMap = make(map[string]string)
for _, sensor := range sensors {
// 0-value sensors are not implemented
if sensor.Temperature == 0 {
continue
}
if label, ok := ids[sensor.SensorKey]; ok {
sensorMap[sensor.SensorKey] = label
rv = append(rv, label)
}
}
return rv
}
// Only the ones filtered
func defs() []string {
rv := make([]string, 0, len(sensorMap))
for _, val := range sensorMap {
rv = append(rv, val)
}
return rv
}
// loadIDs parses the embedded smc.tsv data that maps Darwin SMC
// sensor IDs to their human-readable labels into an array and returns the
// array. The array keys are the 4-letter sensor keys; the values are the
// human labels.
func loadIDs() map[string]string {
rv := make(map[string]string)
data, err := Asset("smc.tsv")
parser := csv.NewReader(bytes.NewReader(data))
parser.Comma = '\t'
var line []string
for {
if line, err = parser.Read(); err == io.EOF {
break
}
if err != nil {
// FIXME log an error here
break
}
// The line is malformed if len(line) != 2, but because the asset is static
// it makes no sense to report the error to downstream users. This must be
// tested at/around compile time.
// FIXME assert all lines in smc.tsv have 2 columns during unit tests
if len(line) == 2 {
rv[line[0]] = line[1]
}
}
return rv
}
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