tcp

var (
	// ErrConnClosed will be returned if the current connection closed.
	ErrConnClosed = errors.New("connection closed")
	// ErrUnknownDir will be returned if the direction is unknown.
	ErrUnknownDir = errors.New("unknown direction")
	// ErrNextProtoMismatch will be returned if next proto mismatch when tls handshaking.
	ErrNextProtoMismatch = errors.New("next proto mismatch")
)

var (
	// ErrNilTlsCfg will be returned if tls config is nil when network starting.
	ErrNilTlsCfg = errors.New("nil tls config")
	// ErrNilGMTlsServerCfg will be returned if gm tls server config is nil when gm tls enabled.
	ErrNilGMTlsServerCfg = errors.New("nil gm tls server config")
	// ErrNilGMTlsClientCfg will be returned if gm tls client config is nil when gm tls enabled.
	ErrNilGMTlsClientCfg = errors.New("nil gm tls client config")
	// ErrEmptyTlsCerts will be returned if no tls cert given when network starting with tls enabled.
	ErrEmptyTlsCerts = errors.New("empty tls certs")
	// ErrGMTlsCertsForServerLack will be returned if the count of certs for gm tls server configuration less than two.
	ErrGMTlsCertsForServerLack = errors.New("at last two certs required for gm tls server config")
	// ErrEmptyGMTlsClientCerts will be returned if no certs for gm tls client configuration.
	ErrEmptyGMTlsClientCerts = errors.New("empty gm tls certs for client")
	// ErrNilAddr will be returned if the listening address is empty.
	ErrNilAddr = errors.New("nil addr")
	// ErrEmptyListenAddress will be returned if no listening address given.
	ErrEmptyListenAddress = errors.New("empty listen address")
	// ErrListenerRequired will be returned if no listener created.
	ErrListenerRequired = errors.New("at least one listener is required")
	// ErrConnRejectedByConnHandler will be returned if connection handler reject a connection when establishing.
	ErrConnRejectedByConnHandler = errors.New("connection rejected by conn handler")
	// ErrNotTheSameNetwork will be returned if the connection disconnected is not created by current network.
	ErrNotTheSameNetwork = errors.New("not the same network")
	// ErrPidMismatch will be returned if the remote peer id is not the expected one.
	ErrPidMismatch = errors.New("pid mismatch")
	// ErrNilLoadPidFunc will be returned if loadPidFunc is nil.
	ErrNilLoadPidFunc = errors.New("load peer id function required")
	// ErrWrongTcpAddr  will be returned if the address is wrong when calling Dial method.
	ErrWrongTcpAddr = errors.New("wrong tcp address format")
	// ErrEmptyLocalPeerId will be returned if load local peer id failed.
	ErrEmptyLocalPeerId = errors.New("empty local peer id")
	// ErrNoUsableLocalAddress will be returned if no usable local address found
	// when the local listening address is a Unspecified address.
	ErrNoUsableLocalAddress = errors.New("no usable local address found")
	// ErrLocalPidNotSet will be returned if local peer id not set on insecurity mode.
	ErrLocalPidNotSet = errors.New("local peer id not set")
)