Specs

handle_init(Membrane.Log.Logger.logger_options_t()) ::
  {:ok, any()} | {:error, any()}

Callback invoked when logger is initialized, right after new process is spawned.

On success it should return {:ok, initial_logger_state}.

Specs

handle_log(
  Membrane.Log.Logger.msg_level_t(),
  Membrane.Log.Logger.message_t(),
  String.t(),
  [Membrane.Log.Logger.tag_t()],
  any()
) :: {:ok, any()} | {:error, any(), any()}

Callback invoked when new log message is received.

Callback delivers 5 arguments:

• atom containing log level
• message - in IO list format
• time
• tags (list of atoms, e.g. module name)
• internal logger state

On success, it returns {:ok, new_state}. it will just update logger's state to the new state.

If it returns {:error, reason, new_state} it indicates that something went wrong, and logger was unable to handle log. State will be updated to the new state.

Specs

handle_shutdown(any()) :: any()

Callback invoked when logger is shutting down just before process is exiting. It will receive the logger state.

Return value is ignored.