[C++] InputStream implementation for reading from a FIFO?

[jwimberl]

Describe the usage question you have. Please include as many useful details as possible.

I need to read IPC from a named pipe on Linux. The RecordBatchStreamReader constructor requires some input object that's an implementation of the arrow::io::InputStream interface. Looking through documentation, so far I've just found the arrow::io::ReadableFile implementation (inapplicable) and arrow::io::StdinStream, and some others that looked like adaptors of different sorts. Is there a canonical class for reading from a FIFO, or should I just adapt the StdinStream class?

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C++