INITIAL

datapoint/datapoint.go

@@ -0,0 +1,60 @@
+// Package datapoint holds the position fix type shared by the macker client
+// and server.
+package datapoint
+
+import "sync"
+
+type Tri struct {
+	Lat, Long, Alt float64
+}
+
+// DataPoint is a single position fix extracted from a gpsd TPV report.
+// Timestamp is Unix time in milliseconds; zero means gpsd omitted the time.
+type DataPoint struct {
+	Speed         *float64 // Ground speed in metres per second; nil means unavailable.
+	Timestamp     uint64
+	Lat, LatErr   float64
+	Long, LongErr float64
+	Alt, AltErr   float64
+}
+
+func (dp DataPoint) getTri() Tri {
+	return Tri{
+		dp.Lat,
+		dp.Long,
+		dp.Alt,
+	}
+}
+
+type TrackBuffer struct {
+	DataPoints []DataPoint
+	Mtx        *sync.Mutex
+}
+
+func GenTrackBuff() TrackBuffer {
+
+	var sm sync.Mutex
+
+	return TrackBuffer{
+		[]DataPoint{},
+		&sm,
+	}
+}
+
+func (tb *TrackBuffer) Add(input DataPoint) {
+	tb.Mtx.Lock()
+	tb.DataPoints = append(tb.DataPoints, input)
+	tb.Mtx.Unlock()
+}
+
+func (tb *TrackBuffer) StartTBHandler() (chan DataPoint, *TrackBuffer) {
+
+	inchan := make(chan DataPoint)
+
+	go func() {
+		for tmp := range inchan {
+			tb.Add(tmp)
+		}
+	}()
+	return inchan, tb
+}

datapoint/go.mod

@@ -0,0 +1,3 @@
+module macker/datapoint
+
+go 1.27.0