Rapid Next / Delete actions freeze/kill IG

[fire-eggs]

From Google Groups:

Basically I open a folder and either Delete or Right Arrow to prune the images I no longer need. After a while Imageglass pauses and then stops - Not Responding. Clicking the mouse makes the screen go white cloudy and the program crashes.

I have reproduced the problem.

System information:

• Windows OS version: Windows 10 Pro x64
• ImageGlass version: 8.2.6.6

To Reproduce

Steps to reproduce the behavior:

1. Open a folder in Imageglass containing images
2. Proceed to click the right arrow and delete key (deleting every other image).

NOTE: the problem reproduces if step 2 is done quickly. Moving through and deleting the images slowly (e.g.) once per second does NOT cause a problem.

Merely moving through the images with the arrow key, even quickly, does not cause the problem. It is the combination of arrow plus delete.

Actual behavior:

When I exercise the scenario, IG gets to a state where it is no longer showing images. Clicking the arrow key to move to the next image does nothing. Reloading the file list might clear the problem, although the first image IG tried to display showed an error.

The reporting user suggests that IG freezes and crashes. I've not had that happen.

Expected behavior:

IG acts as normal.

[fire-eggs]

Running the scenario inside the debugger, I've narrowed down the problem slightly. When IG gets into the "won't show more images" state, it turns out that Local.IsBusy flag is true.

Reloading the image list "fixes" the problem because Local.IsBusy gets reset to false.

So the delete process appears to be messing up the Local.IsBusy state.

[d2phap]

This issue is fixed in v9.0 beta 2