6.8.4 Stream Example

See Defining a New Stream for a simple example of defining a stream that reads from a C FILE stream.

For a more realistic example, library(codesio) implements a stream that can return a list of all characters written to it. The source code for this library is located in library/codesio.pl and library/codesio.c and can serve as a useful sample for user defined streams both for input and output. That code also illustrates other important features of user defined streams, for instance ensuring that all the streams have been closed when the foreign resource is unloaded.

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