emil14
commented
1 year ago Chat GPT response
_In FBP, an Initial Information Packet (IIP) is sent only once to a process at the beginning of the execution of a network. The IIP is used to initialize a process's input port with a specific value. After the initial packet is sent, the process is responsible for generating its own input packets.
In your example of the "+1" component, the IIP carrying the value of "v" will be sent only once to the "sum" process's input port "a". However, the "1" value can be sent repeatedly to the "sum" process's input port "b" using a generator process. This generator process could take the form of a separate process, as you suggested, or it could be part of the "+1" component.
The decision to use a "once" or "infinite" IIP depends on the specific use case. In general, "once" IIPs are useful for initializing a process's state, configuration, or other static data. "Infinite" IIPs are useful when the input data is dynamic and changing over time. For example, if a process is reading data from a sensor, an "infinite" IIP can be used to continuously update the process with the latest sensor readings.
In summary, an IIP is sent only once to a process at the beginning of the execution of a network. To send dynamic input data to a process, you can use a generator process or design your component to generate its own input packets. The choice between "once" and "infinite" IIPs depends on the specific use case._
In "Dataflow and reactive programming" book IIPS (initial values/tokens) described as things that are sent only once. This is not how this work in Nevalang.