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Re: fstat, file_info and file_test [message #35087 is a reply to message #35086]

Wed, 14 May 2003 09:13

Richard Younger
Messages: 43
Registered: November 2000

Member

Ben Tupper wrote:
[...]
> What I would like to have is a function similar to:
>
> result = FILE_ISOPEN(filename)
>
> that returns a 1 (for open) or a 0 (for closed). Or, perhaps better in
> the long run, I'd like to see an /ISOPEN keyword added to FILE_TEST.

Hi Ben.

I don't think IDL associates file names with open files except through LUNs,
so I can only think of the brute force method:

FUNCTION IsFilenameOpen, filename

COMPILE_OPT idl2

test_struc = Fstat(0)
struc_array = Replicate(test_struc, 129)

FOR i=1, 128 DO BEGIN
struc_array[i] = Fstat(i)
ENDFOR

index = Where(struc_array.name EQ File_Expand_Path(filename), count)

IF count EQ 0 THEN RETURN, 0 ELSE RETURN, 1

END

Wouldn't want to put it in an inner loop, though.

Good luck,
Rich

--
Richard Younger
younger@spaMIT.edu (with obvious modification)

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[Message index]

		Re: fstat, file_info and file_test By: Nigel Wade on Thu, 15 May 2003 02:26
		Re: fstat, file_info and file_test By: Karsten Rodenacker on Thu, 15 May 2003 02:19
		Re: fstat, file_info and file_test By: btt on Wed, 14 May 2003 11:28
		Re: fstat, file_info and file_test By: btt on Wed, 14 May 2003 10:48
		Re: fstat, file_info and file_test By: Bruce Bowler on Wed, 14 May 2003 09:56
		Re: fstat, file_info and file_test By: Richard Younger on Wed, 14 May 2003 09:13
		Re: fstat, file_info and file_test By: Richard Younger on Fri, 16 May 2003 11:16
		Re: fstat, file_info and file_test By: btt on Thu, 15 May 2003 07:56

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