// ReadHeader reads a protocol.ID header from an io.Reader. This is so
// multiple protocols can be multiplexed on top of the same transport.
// See WriteHeader.
func ReadHeader(r io.Reader) (ID, error) {
vr := msgio.NewVarintReader(r)
msg, err := vr.ReadMsg()
if err != nil {
return ID(""), err
}
msg = msg[:len(msg)-1] // remove \n
return ID(msg), nil
}
func (cs *cliqueService) listen(portName string) (<-chan *incomingMessage, error) {
portString := cs.servicePortString(portName)
listener, err := corenet.Listen(cs.ipfsNode, portString)
if err != nil {
return nil, err
}
messageOut := make(chan *incomingMessage)
go func() {
for {
stream, err := listener.Accept()
if err != nil {
// ipfsNode's context was canceled
close(messageOut)
return
}
reader := msgio.NewVarintReader(stream)
message, err := reader.ReadMsg()
if err != nil {
log.Printf("Cliqueservice failed to read message: %s\n", err)
continue
}
reader.Close()
if err != nil {
log.Printf("Cliqueservice failed to close stream: %s\n", err)
continue
}
messageOut <- &incomingMessage{id: stream.Conn().RemotePeer(), data: message}
}
}()
return messageOut, nil
}