First check

• I added a very descriptive title to this issue.
• I used the GitHub search to find a similar issue and didn't find it.
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Long story short

I've been using low-level machinery exposed by aiohttp for my framework.
When I learned about handle_signals=True I started testing it and it turned out that my process always exited with return code 1 on SIGTERM and SIGINT.

This was confusing and I thought that it's a bug. But then, after diving into the code deeper, I realized that with this option enabled, aioht

Stitching API

Opencv provide a Stitching module/API

Bascially, i would like to be able to rewrite stitching_detailed.cpp in javascript

This includes :

• Stitcher class
• Features extractors (already implemented in opencv4nodejs)
• Estimator

What should happen if deliver_cancel raises an exception? In the current implementation, the shielded cancel scope will prevent it from propagating until the process exits, which might take a while if the crash occurred before signaling the process in any way. Maybe on exception from a user-specified deliver_cancel we should call the default deliver_cancel to kill the process? Or just kill() since