init v0.1.0

pkg/interfaces/interface.go

@@ -0,0 +1,79 @@
+package interfaces
+
+import (
+	"fmt"
+	"sync"
+	"time"
+	"encoding/binary"
+
+	"github.com/Sudo-Ivan/reticulum-go/pkg/common"
+)
+
+const (
+	BITRATE_MINIMUM = 5 // Minimum required bitrate in bits/sec
+)
+
+// BaseInterface embeds common.BaseInterface and implements common.Interface
+type BaseInterface struct {
+	common.BaseInterface
+}
+
+func (i *BaseInterface) SetPacketCallback(callback common.PacketCallback) {
+	i.mutex.Lock()
+	defer i.mutex.Unlock()
+	i.packetCallback = callback
+}
+
+func (i *BaseInterface) ProcessIncoming(data []byte) {
+	i.mutex.RLock()
+	callback := i.packetCallback
+	i.mutex.RUnlock()
+	
+	if callback != nil {
+		callback(data, i)
+	}
+	
+	i.RxBytes += uint64(len(data))
+}
+
+func (i *BaseInterface) ProcessOutgoing(data []byte) error {
+	i.TxBytes += uint64(len(data))
+	return nil
+}
+
+func (i *BaseInterface) Detach() {
+	i.mutex.Lock()
+	defer i.mutex.Unlock()
+	i.Detached = true
+	i.Online = false
+}
+
+func (i *BaseInterface) SendPathRequest(packet []byte) error {
+	if !i.Online || i.Detached {
+		return fmt.Errorf("interface offline or detached")
+	}
+
+	frame := make([]byte, 0, len(packet)+2)
+	frame = append(frame, 0x01)
+	frame = append(frame, packet...)
+
+	return i.ProcessOutgoing(frame)
+}
+
+func (i *BaseInterface) SendLinkPacket(dest []byte, data []byte, timestamp time.Time) error {
+	if !i.Online || i.Detached {
+		return fmt.Errorf("interface offline or detached")
+	}
+
+	frame := make([]byte, 0, len(dest)+len(data)+9)
+	frame = append(frame, 0x02)
+	frame = append(frame, dest...)
+	
+	ts := make([]byte, 8)
+	binary.BigEndian.PutUint64(ts, uint64(timestamp.Unix()))
+	frame = append(frame, ts...)
+	
+	frame = append(frame, data...)
+
+	return i.ProcessOutgoing(frame)
+}