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I have already tested this approach in JKFlow and it successfully marshalls and unmarshalls the complex nested hash based data strcutures in JKFlow by simply passing a reference to the root of the nested structure to its component sub-routines.
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Storable is a C extension module for serializing data directly to files and is the fastest of the three approaches. The store function takes a reference to a data structure (the root) and the name of a file. The retrieve method does the converse: given a filename, it returns the root: use Storable; $a = [100, 200, {'foo' => 'bar'}]; eval { store($a, 'test.dat'); }; print "Error writing to file: $@" if $@; $a = retrieve('test.dat'); If you have more than one structure to stuff into a file, simply put all of them in an anonymous array and pass this array's reference to store. You can pass an open filehandle to store_fd instead of giving a filename to store. The functions nstore and nstore_fd can be used for storing the data in "network" order, making the data machine-independent. When you use retrieve or retrieve_fd, the data is automatically converted back to the native machine format (while storing, the module stores a flag indicating whether it has stored it in a machine-independent format or not). |