process

type CmdCreatorFunc func(ctx context.Context, args ...string) (*exec.Cmd, error)

type Creator interface {
	New(ctx context.Context, args ...string) (Process, error)
}

type Process interface {
	// Start starts the Tor process in the background and returns. It is
	// analagous to os/exec.Cmd.Start.
	Start() error
	// Wait waits for the Tor process to exit and returns error if it was not a
	// successful exit. It is analagous to os/exec.Cmd.Wait.
	Wait() error
	// ControlConn is used for statically linked, embedded processes to create
	// a controller connection. For non-embedded processes or Tor versions that
	// don't support embedded control connections, ErrControlConnUnsupported is
	// returned. Note, this should only be called once per process before
	// Start, and the connection does not need to be closed.
	EmbeddedControlConn() (net.Conn, error)
}