太难了

tcpip/tcpip.go

@@ -0,0 +1,31 @@
+package tcpip
+
+type Error struct {
+	msg         string
+	ignoreStats bool
+}
+
+func (err *Error) String() string {
+	return err.msg
+}
+
+func (err *Error) IgnoreStats() bool {
+	return err.ignoreStats
+}
+
+var (
+	ErrUnknowProtovol       = &Error{msg: "unknown protocol"}
+	ErrUnknowNICID          = &Error{msg: "unknown nic id"}
+	ErrUnknowProtocolOption = &Error{msg: "unknown option for protocol"}
+	ErrDuplicateNICID       = &Error{msg: "duplicate nic id"}
+	ErrDuplicateAddress     = &Error{msg: "duplicate address"}
+	ErrNoRoute              = &Error{msg: "no route"}
+	ErrBadLinkEndPoint      = &Error{msg: "bad link layer endpoint"}
+	ErrAlreadyBound         = &Error{msg: "endpoint already bound", ignoreStats: true}
+	ErrInvalidEndpointState = &Error{msg: "endpoint is in invalid state"}
+	ErrAlreadConnecting     = &Error{msg: "endpoint is already connecting", ignoreStats: true}
+	ErrAlreadConnected      = &Error{msg: "endpoint is already connected", ignoreStats: true}
+	ErrNoPortAvailable      = &Error{msg: "no port are available"}
+	ErrPortInUse            = &Error{msg: "port is in use"}
+	ErrBadLocalAddress = &
+)