net.i2p.router.tunnel

## Interface TunnelGateway.QueuePreprocessor

- All Known Implementing Classes:
    BatchedPreprocessor, BatchedRouterPreprocessor, TrivialPreprocessor
  Enclosing class:
    TunnelGateway

      public static interface TunnelGateway.QueuePreprocessor

  Interface for preprocessing queued tunnel messages. Handles message coalescing, fragmentation, and preparation for sending.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `long` | `getDelayAmount()` how long do we want to wait before flushing
    `boolean` | `preprocessQueue(List<PendingGatewayMessage> pending, TunnelGateway.Sender sender, TunnelGateway.Receiver receiver)` Caller must synchronize on the list!

- - ### Method Detail

    - #### getDelayAmount

          long getDelayAmount()

      how long do we want to wait before flushing

    - #### preprocessQueue

          boolean preprocessQueue(List<PendingGatewayMessage> pending,
                                  TunnelGateway.Sender sender,
                                  TunnelGateway.Receiver receiver)

      Caller must synchronize on the list!
      Parameters:
        `pending` - list of Pending objects for messages either unsent or partly sent. This list should be update with any values removed (the preprocessor owns the lock) Messages are not removed from the list until actually sent. The status of unsent and partially-sent messages is stored in the Pending structure.
      Returns:
        true if we should delay before preprocessing again