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writer.go
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/
writer.go
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package srpc
// PacketWriter is the interface used to write messages to a PacketStream.
type PacketWriter interface {
// WritePacket writes a packet to the remote.
WritePacket(p *Packet) error
// Close closes the writer.
Close() error
}
// packetWriterWithClose is a PacketWriter with a wrapped Close function.
type packetWriterWithClose struct {
PacketWriter
closeFn func() error
}
// NewPacketWriterWithClose wraps a PacketWriter with a close function to call when Close is called.
func NewPacketWriterWithClose(prw PacketWriter, close func() error) PacketWriter {
return &packetWriterWithClose{PacketWriter: prw, closeFn: close}
}
// Close closes the stream for reading and writing.
func (s *packetWriterWithClose) Close() error {
err := s.PacketWriter.Close()
err2 := s.closeFn()
if err != nil {
return err
}
return err2
}
// _ is a type assertion
var _ PacketWriter = (*packetWriterWithClose)(nil)