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unleashed-firmware/lib/toolbox/cli/shell
WillyJL ad94694fbd CLI: Fix long delay with quick connect/disconnect (#4251)
* CLI: Fix long delay with quick connect/disconnect

noticeable with qflipper, for some reason it sets DTR on/off/on again
so flipper starts CLI, stops it, then starts again
but cli shell is trying to print motd, and pipe is already broken
so each character of motd times out for 100ms
changing pipe timeout to 10ms works too, but is just a workaround

it didnt always happen, i think that variable time of loading ext cmds
made it so on ofw it usually manages to print motd before pipe is broken
on cfw with more ext commands it always hung, on ofw only sometimes

important part is bailing early in cli shell
in cli vcp i made it cleanup cli shell on disconnect so it doesnt stay
around after disconnecting usb, might free a little ram maybe

* cli_shell: possibly more robust fix?

* Fix use after free crash

* cli_shell: waste even less time

Co-Authored-By: WillyJL <me@willyjl.dev>

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Co-authored-by: Anna Antonenko <portasynthinca3@gmail.com>
Co-authored-by: hedger <hedger@users.noreply.github.com>
2025-09-24 13:19:18 +04:00
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