feat: initial testing of lockfile and coroutine onexit implementation

[khris190]

so this is initial version of lockfile on_exit implementation, it seems to work i just want to share the progress TODO:

• i'll move lock_file functions to utils and parametrize them
• remove dump from 3rd line
• remove temporary sleep 5 command
• remove special treatment of that full_cmd and implement on_exit properly
• tests

if i'm missing something then please tell me