controls

type HandlerRegistry struct {
	// contains filtered or unexported fields
}

type HandlerRegistryBackend interface {
	// Lock locks the backend, so the batch insertions or
	// removals can be performed.
	Lock()
	// Unlock unlocks the registry.
	Unlock()
	// Register a new control handler under a given
	// id. Implementations should not call Lock() or Unlock()
	// here, it will be done by HandlerRegistry.
	Register(control string, f xfer.ControlHandlerFunc)
	// Rm deletes the handler for a given name. Implementations
	// should not call Lock() or Unlock() here, it will be done by
	// HandlerRegistry.
	Rm(control string)
	// Handler gets the handler for a control. Implementations
	// should not call Lock() or Unlock() here, it will be done by
	// HandlerRegistry.
	Handler(control string) (xfer.ControlHandlerFunc, bool)
}

type PipeClient interface {
	PipeConnection(string, string, xfer.Pipe) error
	PipeClose(string, string) error
}