I'd like to get an exclusive lock for a file (it's for debugging purposes).
On Linux there's flock http://linux.die.net/man/1/flock
On BSD i've found lockf http://www.unix.com/man-page/FreeBSD/1/lockf/
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now i've found this similar question: superuser.com/questions/519389/flock-command-for-windows– eadmasterCommented Dec 18, 2012 at 2:43
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the cygwin util-linux package has this "flock" utility, but it's not working...– eadmasterCommented Dec 18, 2012 at 2:43
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1 Answer
When you call CreateFile to open a file, just pass in 0 for dwShareMode.
If this parameter is zero and
CreateFilesucceeds, the file or device cannot be shared and cannot be opened again until the handle to the file or device is closed.
answered Dec 14, 2012 at 15:28
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I would like a ready-to-use tool, not a Win32 API function. Commented Dec 14, 2012 at 19:43
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2@eadmaster: I can't see how that would make any sense. What would the tool do? It would just hold the lock on the file until you manually closed it? (You might get better answers if you explain your outer problem. Are you trying to coordinate multiple operations that are cooperating?) Commented Dec 14, 2012 at 19:54