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router: make AddLinkType acquire the DataPlane mutex #4614

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Sep 12, 2024
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router: make AddLinkType acquire the DataPlane mutex #4614

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5 changes: 5 additions & 0 deletions router/dataplane.go
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Original file line number Diff line number Diff line change
Expand Up @@ -405,6 +405,11 @@ func (d *DataPlane) AddNeighborIA(ifID uint16, remote addr.IA) error {
// the given ID is already set, this method will return an error. This can only
// be called on a not yet running dataplane.
func (d *DataPlane) AddLinkType(ifID uint16, linkTo topology.LinkType) error {
d.mtx.Lock()
defer d.mtx.Unlock()
if d.IsRunning() {
return modifyExisting
}
if _, exists := d.linkTypes[ifID]; exists {
return serrors.JoinNoStack(alreadySet, nil, "ifID", ifID)
}
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