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The goal is to provide the common synchronization tools known from parallel programming for the module network.

This allows for more complex pipelines with synchronization of inputs. This is a feature mostly needed by advanced users only.

These tools include:

• Barrier Module
• Trigger Connectors

Barrier Module:

• Provides n inputs and n outputs.
• Update outputs if all inputs where set
• Invalidate inputs and wait for all inputs to be updated again

Trigger Connectors:

• Some kind of "untyped" input connector
• Can be connected to an arbitrary output
• If output updates, the trigger input notifies its module

(from redmine: created on 2012-01-09, closed on 2013-02-21)