IORef Parameters #9

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acowley opened this Issue Dec 21, 2010 · 0 comments

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@acowley
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Node parameters are currently only useful when a Node is being set up. These parameters may come from the command line or a launch script, and provide a convenient mechanism for parameterizing nodes. However, part of the Node API is an ability to set a parameter at any time. To let a Node use this, we can return an IORef that holds a parameter value so that it may be dereferenced repeatedly during execution to pick up new parameter values.

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