tfo

type Dialer struct {
	net.Dialer

	// DisableTFO controls whether TCP Fast Open is disabled when the dial methods are called.
	// TFO is enabled by default.
	// Set to true to disable TFO and it will behave exactly the same as [net.Dialer].
	DisableTFO bool

	// Fallback controls whether to proceed without TFO when TFO is enabled but not supported
	// on the system.
	// On Linux this also controls whether the sendto(MSG_FASTOPEN) fallback path is tried
	// before giving up on TFO.
	Fallback bool
}

type ListenConfig struct {
	net.ListenConfig

	// Backlog specifies the maximum number of pending TFO connections on supported platforms.
	// If the value is 0, Go std's listen(2) backlog is used.
	// If the value is negative, TFO is disabled.
	Backlog int

	// DisableTFO controls whether TCP Fast Open is disabled when the Listen method is called.
	// TFO is enabled by default, unless [ListenConfig.Backlog] is negative.
	// Set to true to disable TFO and it will behave exactly the same as [net.ListenConfig].
	DisableTFO bool

	// Fallback controls whether to proceed without TFO when TFO is enabled but not supported
	// on the system.
	Fallback bool
}

type PlatformUnsupportedError struct{}