AppSelfShutdownCaller is used to signal a app self shutdown caused by an error.

NewShutdownHandler creates a new shutdown handler.

WithSelfShutdownLogsEnabled defines whether to store self-shutdown events to a log file.

WithSelfShutdownLogsFilePath defines the file path to the self-shutdown log.

WithStopGracePeriod defines the the maximum time to wait for background processes to finish during shutdown before terminating the app.

Events holds Shutdown related events.

ShutdownHandler waits until a shutdown signal was received or the app tried to shutdown itself, and shuts down all processes gracefully.