From Newsgroup: comp.emulators.apple2
On Sunday, April 23, 2023 at 9:26:01rC>PM UTC-7, A2CPM wrote:
There is an option for specifying the location of CiderPress in AppleWin. So, it seems to me that there ought to be a way to use CiderPress to update a disk image without first disconnecting the disk image from AppleWin. So, is it possible to use CiderPress on a disk image while that image is still connected to AppleWin? If so, how?
It's unwise for both programs to have the disk image open for writing at the same time. If they wrote simultaneously, or cached data in memory, the disk image could get corrupted.
CiderPress opens the image and holds it open, which prevents anything else from messing with it, because Windows won't allow different processes to have the file open read-write simultaneously. AppleWin does the same thing. If CiderPress is unable to open the file for writing, it will retry in read-only mode, which is why you can look at an image while AppleWin is running it but can't make changes.
To make this work properly, AppleWin and CiderPress would need to coordinate access, and purge any cached information before handing the file off.
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