Feature: Add Go TCP server framework

server/go/connection/errors.go

@@ -0,0 +1,23 @@
+package connection
+
+import "errors"
+
+var (
+	// ErrConnectionClosed indicates the connection is closed
+	ErrConnectionClosed = errors.New("connection closed")
+
+	// ErrServerClosed indicates the server is shut down
+	ErrServerClosed = errors.New("server closed")
+
+	// ErrMaxConnections indicates max connections reached
+	ErrMaxConnections = errors.New("max connections reached")
+
+	// ErrInvalidPacket indicates an invalid packet
+	ErrInvalidPacket = errors.New("invalid packet")
+
+	// ErrUnsupportedProtocol indicates unsupported protocol
+	ErrUnsupportedProtocol = errors.New("unsupported protocol")
+
+	// ErrDecompressFailed indicates decompression failure
+	ErrDecompressFailed = errors.New("decompression failed")
+)