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FILE* and streams

Posted on 2004-08-30
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Hello all,
   I'm making use of a static library that makes use of stdout and stderr as input to different functions that require a FILE* as a parameter.  I would like to make use of these functions, but do not want to create a temporary, ( or permanent for that matter ), file on the drive to make use of the functions.  What can I do to pass a stream into this function so that I can read the output from the function?

Thanks much.
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Question by:edc
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5 Comments
 
LVL 22

Expert Comment

by:grg99
ID: 11936100
You could use a pipe.  Depending on the OS, it could be as simple as opening a file named "\\.\\pipe\\MyPipe".

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Author Comment

by:edc
ID: 11936143
Hi grg99.  The OS is windows, (most likely 2K, XP and 2003, but could also be 9x).  Would the pipe work on the Windows OSs?

Thanks much.
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Author Comment

by:edc
ID: 11936149
Also, if so, where can I find documentation on how to use it?

Thanks again.
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LVL 16

Expert Comment

by:nonubik
ID: 11940884
Of course you can use pipes on Windows. Take a look here http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ipc/base/pipes.asp
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grg99 earned 500 total points
ID: 11941289
Note that pipes are kinda shaky-- the semantics of multiple pipe readers are very fuzzy.  Also Windows 95/98 are only half-assed-- they can be pipe clients but not servers.  Yet another intentional cripling, thanks MSoft.

I'd try using a temporary file, much easier and works on all OS's.

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