signal

type ShutdownConfig struct {
	// Server is the HTTP server to shut down (optional if ShutdownFunc is provided)
	Server *http.Server
	// ShutdownFunc is called to perform shutdown (alternative to Server)
	// If provided, this is called instead of Server.Shutdown
	ShutdownFunc    func(ctx context.Context) error
	PIDFile         string
	InFlightTimeout time.Duration // Default: 30s
	ChildTimeout    time.Duration // Default: 10s
	DatabaseTimeout time.Duration // Default: 5s
	LogFlushTimeout time.Duration // Default: 2s
	OnReopenLogs    func()        // Called on SIGUSR1 (Unix only)
	OnDumpStatus    func()        // Called on SIGUSR2 (Unix only)
	OnCloseDatabase func()        // Called during shutdown
	OnFlushLogs     func()        // Called during shutdown
	GetChildPIDs    func() []int  // Returns child process PIDs
}