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route_monitoring.go 915 B
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    import (
    	"bytes"
    	"fmt"
    
    	"github.com/bio-routing/bio-rd/util/decoder"
    )
    
    // RouteMonitoringMsg represents a Route Monitoring Message
    type RouteMonitoringMsg struct {
    	CommonHeader  *CommonHeader
    	PerPeerHeader *PerPeerHeader
    	BGPUpdate     []byte
    }
    
    // MsgType returns the type of this message
    func (rm *RouteMonitoringMsg) MsgType() uint8 {
    	return rm.CommonHeader.MsgType
    }
    
    func decodeRouteMonitoringMsg(buf *bytes.Buffer, ch *CommonHeader) (*RouteMonitoringMsg, error) {
    	rm := &RouteMonitoringMsg{
    		CommonHeader: ch,
    	}
    
    	pph, err := decodePerPeerHeader(buf)
    	if err != nil {
    		return nil, fmt.Errorf("Unable to decode per peer header: %v", err)
    	}
    
    	rm.PerPeerHeader = pph
    
    	rm.BGPUpdate = make([]byte, ch.MsgLength-CommonHeaderLen-PerPeerHeaderLen)
    
    	fields := []interface{}{
    		&rm.BGPUpdate,
    	}
    
    	err = decoder.Decode(buf, fields)
    	if err != nil {
    		return nil, err
    	}
    
    	return rm, nil
    }