Requirements on how to interrupt long Gcode commands

[EddyMI3D]

You may have a look on these:

Feature request: Interrupt-able M109 and M190

New gcode to interrupt the pending command queue

I want to add something that would interrupt the current command and clear the pending command queue. The approach I’m looking at is a CANCEL_COMMANDS custom gcode command that behaves similarly to M112, such that it would get matched and have its handler called directly inside GCodeIO._process_data(). However, instead of shutting down the printer you’d have the following steps: Suspend input processing. Set a flag on Printer that indicates it’s in a cancel state. Clear the command queue. Wait…