Create Compound Debug Launches Dynamically

[WardenGnaw]

I'm looking for a way to create a compound launch, but it does not require all the launch.json configurations to be present or required upfront.

The scenario is where a user will start a debug session, and then later starts another debug session and wants to group it with the first debug session. These other debug session can happen N times and do not have a parent child relationship. The idea would be to have a vscode.debug.* API that has a debug sessions manager that would synchronize the state of all the sessions that are in a particular group.

These processes would pause, continue, stop at the same time if even one processes hits a breakpoint.

Being able to control this group of processes's pause, stop, continue, and terminate happening at once is asked in this issue: #137953

[vscodenpa]

This feature request is now a candidate for our backlog. The community has 60 days to upvote the issue. If it receives 20 upvotes we will move it to our backlog. If not, we will close it. To learn more about how we handle feature requests, please see our documentation.

Happy Coding!

[andrewbgross]

This feature seems like it would basically be required to ever debug any of the message queue / worker pool frameworks that seem so beloved by the web development community. If you've got 16 celery workers, each a subprocess (because of Python's dreadful state of multithreading), and you hit your breakpoint, while you're stepping through the code at human speed, the other 15 celery workers are processing queued work items at computer speed, and it is very likely that your application will soon get into a state it was never designed to be in-- the subprocess you're debugging holds a mutex or sempaphore, or is supposed to update something in Redis that another subprocess is waiting on and it times out, or whatever. I'm honestly not sure how it would be at all possible to use a debugger on celery workers without the ability to pause all of them at once-- certainly, I've tried and failed.