func (m *manager) runAccelerometer(s Sender, d time.Duration, done chan struct{}) {
var timestamp C.int64_t
var ev [3]C.float
var lastTimestamp int64
for {
select {
case <-done:
return
default:
C.GoIOS_readAccelerometer((*C.int64_t)(unsafe.Pointer(×tamp)), (*C.float)(unsafe.Pointer(&ev[0])))
t := int64(timestamp)
if t > lastTimestamp {
// TODO(jbd): Do we need to convert the values to another unit?
// How does iOS units compare to the Android units.
s.Send(Event{
Sensor: Accelerometer,
Timestamp: t,
Data: []float64{float64(ev[0]), float64(ev[1]), float64(ev[2])},
})
lastTimestamp = t
time.Sleep(d / 2)
}
}
}
}
func (m *manager) startAccelometer(app sender, d time.Duration) {
go func() {
ev := make([]C.float, 4)
var lastTimestamp int64
for {
select {
case <-doneA:
return
default:
C.GoIOS_readAccelerometer(m.m, (*C.float)(unsafe.Pointer(&ev[0])))
t := int64(ev[0] * 1000 * 1000)
if t > lastTimestamp {
// TODO(jbd): Do we need to convert the values to another unit?
// How does iOS units compate to the Android units.
app.Send(Event{
Sensor: Accelerometer,
Timestamp: t,
Data: []float64{float64(ev[1]), float64(ev[2]), float64(ev[3])},
})
lastTimestamp = t
<-time.Tick(d)
} else {
<-time.Tick(d / 2)
}
}
}
}()
}
func pollSensor(s Sender, t Type, d time.Duration, done chan struct{}) {
var lastTimestamp int64
var timestamp C.int64_t
var ev [3]C.float
for {
select {
case <-done:
return
default:
tp := (*C.int64_t)(unsafe.Pointer(×tamp))
vp := (*C.float)(unsafe.Pointer(&ev[0]))
switch t {
case Accelerometer:
C.GoIOS_readAccelerometer(tp, vp)
case Gyroscope:
C.GoIOS_readGyro(tp, vp)
case Magnetometer:
C.GoIOS_readMagneto(tp, vp)
}
ts := int64(timestamp)
if ts > lastTimestamp {
// TODO(jbd): Do we need to convert the values to another unit?
// How does iOS units compare to the Android units.
s.Send(Event{
Sensor: t,
Timestamp: ts,
Data: []float64{float64(ev[0]), float64(ev[1]), float64(ev[2])},
})
lastTimestamp = ts
time.Sleep(d / 2)
}
}
}
}