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<== Date ==> <== Thread ==>

Subject: Re: VxWorks file i/o problem
From: Philip Taylor <[email protected]>
To: Len Lawrence <[email protected]>
Cc: tech-talk EPICS <[email protected]>, Sean Prior <[email protected]>
Date: Wed, 5 Mar 1997 16:32:44 +0000 (GMT)
Are you using NFS or not?

I had a possibly related problem which was confirmed by 
Wind River as a known problem (it is in 5.2 & 5.3 and
they stated that they do not intend to fix in 5.2 due to
it being 'non-critical'). Basically it means that unless 
you are using NFS you cannot tell whether a file exists 
when you try to open it. WRS bug report was :

-------------------------------------------------------------------------

SPR #: 5227

PRODUCT: 5.3 Beta-1
ARCH: All
BOARD: All
HOST: N/A

DESCRIPTION:

If you try to open a non-existing file (without NFS) the fopen()
succeeds and the "contents" of the file is the error message returned
by Unix. The routine fopen() should return NULL if the file doesn't
exist.

WORKAROUND:
None.

------------------------------------------------------------------------  


Philip

------------------------------------------------------------
Philip Taylor, Royal Greenwich Observatory, 
Madingley Road, CAMBRIDGE. CB3 0EZ. UK
Email : [email protected]      Phone : (UK+) (0)1223-374710
------------------------------------------------------------



References:
VxWorks file i/o problem Len Lawrence

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