Thread: lockfile/unlockfile,can not work between the processes?

Originally Posted by wal_sug

hello,
I locked a file in a process ,and now to release it in another process,but it doesn't work.the GetLastError() API indicates as if I never locked that file.

how come it turned out to be like this?
Is there any other way to do this: lockfile in one process and unlock in another?

regards

And why would you want to do it that way? The whole purpose of LockFile and UnlockFile is that they keep track of the process that locked the file, and prevent any other process from operating on the file. It would be pretty insecure and pointless to have a locking mechanism that doesn't check that the process unlocking the file is the same process that locked it. It reminds me of the time when Ford in the UK had a lock that just about any key would unlock and start any Ford model of that year - it wasn't exactly a publicity success (well, if you count "any publicity is good publicity", then perhaps it was!

--
Mats