evio

type Action int

type Conn interface {
	// Context returns a user-defined context.
	Context() interface{}
	// SetContext sets a user-defined context.
	SetContext(interface{})
	// AddrIndex is the index of server addr that was passed to the Serve call.
	AddrIndex() int
	// LocalAddr is the connection's local socket address.
	LocalAddr() net.Addr
	// RemoteAddr is the connection's remote peer address.
	RemoteAddr() net.Addr
	// Write data to connection.
	Write(data []byte)
	// Close the connection.
	Close()
}

type Events struct {
	// Serving fires when the server can accept connections. The server
	// parameter has information and various utilities.
	Serving func(server Server) (action Action)
	// Opened fires when a new connection has opened.
	// The info parameter has information about the connection such as
	// it's local and remote address.
	// Use the out return value to write data to the connection.
	Opened func(c Conn) (out []byte, action Action)
	// Closed fires when a connection has closed.
	// The err parameter is the last known connection error.
	Closed func(c Conn) (action Action)
	// PreWrite fires just before any data is written to any client socket.
	PreWrite func()
	// Data fires when a connection sends the server data.
	// The in parameter is the incoming data.
	// Use the out return value to write data to the connection.
	Data func(c Conn, in []byte) (out []byte, action Action)
	// Tick fires immediately after the server starts and will fire again
	// following the duration specified by the delay return value.
	Tick func(now time.Time) (delay time.Duration, action Action)
}

type Server struct {
	// The addrs parameter is an array of listening addresses that align
	// with the addr strings passed to the Serve function.
	Addrs []net.Addr
}