Marco van de Voort
marcov at stack.nl
Mon May 5 14:18:27 CEST 2003
> On Mon, May 05, 2003 at 01:36:41PM +0200, Marco van de Voort wrote:
> > [ Charset ISO-8859-1 unsupported, converting... ]
> > > > Hi,
> > > >
> > > > How do you check for file errors such as "Disk Full" before attempting
> > > > to write out a file to disk ?
> > > > You can easily check if a file exists with the fileExists function...
> > > > Can something similar be done for other file errors ?
> > >
> > > You can check with diskfree() how much space is left on a disk
> > Can be dangerous in multi tasking and/or multi user system. Also that
> > doesn't keep track of e.g. the reserved rootspace on unix.
> > Best way is to check ioresult after writing each block to see if it is zero?
> Or use a try except ?
Standard fileoperations don't raise exceptions. That is for higher level
constructs (like FCL file streams).
If basic block I/O would use exceptions, that would make it slow.
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