Clean SharedMemory

[blackdiamont]

Hey there,
I've noticed that g19daemon won't start again after stopping it (CTRL+C) and noticed that two files will be created under /dev/shm which look like bas64 encoded strings.
I have a basic understanding for C and C++ to write code for my Arduino projects but I didn't find any hints where these files will be created. I assume it's from the CMake build system because I've found this line:
singleapplication_p.cpp: blockServerName = QString::fromUtf8(appData.result().toBase64().replace("/", "_"));

And singleapplication leads to this repo but I don't know where to look etc :/

I've created a bash script as workaround:

#!/bin/bash

find /dev/shm -type f -user <user> -name 'sem.*' -delete

g19daemon

Maybe this helps someone in the same situation like me (I've compiled g19deamon from git).

-black

[0k00l]

Thx for hint - i had issues with suspend and my keyboard(g19deamon won't resume), but with this i made simple script (not tested yest :))

i putted it here: /usr/lib/systemd/system-sleep/g19

#!/bin/sh

# How to check file in shm: find /dev/shm -type f -user <username>     
# File name will be base64 string like below:
#
# Name of file in /dev/shm
WIERED_FILE_NAME_IN_SHM='NKZud9F5TNtPAUtDjY9B5ruIbQpj9xP+VZ74ldw9dbo='
# Your user name
USERNAME='steam'
# wayland display
WAYLAND_DISPLAY='wayland-0'
case "$1" in
        post)
                find /dev/shm -type f -user "${USERNAME}" -name "$WIERED_FILE_NAME_IN_SHM" -delete
                sudo -u "${USERNAME}" WAYLAND_DISPLAY="${WAYLAND_DISPLAY}" XDG_RUNTIME_DIR=/run/user/$(id -u "${USERNAME}") g19daemon
        ;;
        pre)
                pkill g19daemon &> /dev/null
        ;;
esac

exit 0

[jimmyd-be]

If I have the time I can investigate to fix this permanently. Probably by replacing/removing Qsingleapplication

[jimmyd-be]

In branch #40 I removed QSIngleApplication. This will fix the closing with cntrl+C and also with resume after sleep. You can start multiple instances of G19daemon with this but only the latest instance can control the keyboard. I investigate further if I create some new mechanism to run only 1 instance or let this be.

[jimmyd-be]

Created new version to fix this

[blackdiamont]

Awesome thanks!