alef 0.25.37

Opinionated polyglot binding generator for Rust libraries
Documentation 
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// Run starts the HTTP server with the given configuration.
// This method blocks until the server exits or an error occurs.
func (s *{{ service_name }}) Run(config Config) error {
	if s.owner == nil {
		return errors.New("service is closed")
	}

	// Set defaults if not provided.
	if config.Host == "" {
		config.Host = "0.0.0.0"
	}
	if config.Port == 0 {
		config.Port = 8000
	}

	// Marshal config to C.
	configJSON, err := json.Marshal(config)
	if err != nil {
		return fmt.Errorf("marshal config: %w", err)
	}

	// Call the C entrypoint with config.
	addr := fmt.Sprintf("%s:%d", config.Host, config.Port)
	cAddr := C.CString(addr)
	defer C.free(unsafe.Pointer(cAddr))

	cConfig := C.CString(string(configJSON))
	defer C.free(unsafe.Pointer(cConfig))

	ret := C.{{ service_lower }}_{{ service_snake }}_run(
		(*C.{{ upper_prefix }}{{ service_name }}Opaque)(s.owner),
		cAddr,
		cConfig,
	)

	if ret != 0 {
		return fmt.Errorf("run failed with code %d", ret)
	}

	return nil
}