[Ohrrpgce] [ohrrpgce/ohrrpgce] Hero editor and other RELOAD lumps failing to save changes (#36)

[Ralph Versteegen]

I'm currently working on this.

Very interestingly, Windows actually has an "oplock" (opportunistic lock) API that virus scanners/etc can use to access files without preventing other programs from deleting or opening those files with desired access modes (however, I'm not 100% sure whether that includes renaming): https://devblogs.microsoft.com/oldnewthing/?p=4663
When a program tries to access the file it waits and whoever holds the oplock is signalled and given a chance to clean up and let go of their handle.
So as Raymond says, any virus scanner that breaks programs by interfering with deletion or rename is "not well-written" (i.e. buggy). That doesn't change the fact that we need to work around their bugginess.

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