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FILE* and streams

Posted on 2004-08-30
Medium Priority
Last Modified: 2010-04-01
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.
Question by:edc
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LVL 22

Expert Comment

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


Author Comment

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.

Author Comment

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

Thanks again.
LVL 16

Expert Comment

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
LVL 22

Accepted Solution

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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