Re: IFS file stays locked after close

Hi Rick,

Is it possible that you opened the file twice, but only closed it once?

Or perhaps you ran the program the first time, and the program crashed, leaving the file open? The second run opened the file a second time, and then closed it successfully, but the original run still has the file open?

OR some similar idea? (Like an IF statement that ends the routine prematurely because of some condition -- but forgets to close the file.)

Basically, there are a million variations on this... but they come down to the same thing. Every successful call to open() must be followed by a corresponding successful call to close(). If for any reason one of those closes is missing -- even if subsequent ones are closed successfully -- the file will remain open and locked.


Rick.Chevalier@xxxxxxxxxxxxxxx wrote:

I have a situation in an interactive program where the file appears to be locked even though the program has ended. To free the file I have to sign off. I verified that the close operation is performed and the return code = 0 so I think it should be closed. Searching the archives, Google, and Info Center didn't turn up anything useful. I did try adding the fsync function call in case it was an issue with the buffer not being flushed.

Does anyone have any ideas?

Rick Chevalier




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