file open verification

[Erik Max Francis]

John Howard wrote:

> Situation - I have several files on an apache server that are being
> accessed by
> python programs that are receiving data from html forms.
> 
> q1: How can the status of a file be checked?  If two forms have been
> submitted
> and the data is being added to a common file, how do I know that data
> from both forms are being written correctly to the common file?
> 
> q2: Related to above - really more of a cgi question - does the apache
> server keep all these file accesses separate some way?

No, it's your job to keep them all separate.  Not keeping them separate
will cause disaster.  Use lockfiles.

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