I guess you could read for awhile and then close the filehandle. It is possible to open 2 filehandles to same file. Close one and keep going with the other one after first bombs.

My seek idea didn't work as seek past EOF is not an error (that's how to generate "sparse files"). I've tested that on Perl before (*nix and even XP) and it works fine and you just get EOF if you read something like that. Of course EOF is not an error. And of course a write past EOF is completely legal and produces no error.

I've written device drivers that will pass back "known bad data" from say disk system. But that's a special thing and drivers,O/S,app have to know what's going on. That sort of thing is used in huge volume data applications where say 12 bits wrong won't matter in say a video image or a seismic data app.

Still curious as to what kind of data recovery is possible in typ Perl app after "bad data" from an I/O device?

In reply to Re^3: Generating a readline error by Marshall
in thread Generating a readline error by ikegami

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