kc3-lang/SDL/src/core/linux

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• Hash : f59b0056
  Author :
  Date : 2018-08-07T16:56:46
  

  evdev: On sudden termination, make sure keyboard isn't lost (thanks, Tadek!)
  
  "In release 2.0.6, when Linux evdev keyboard support has been moved to a
  separate source file, a feature was added to disable normal keyboard event
  processing to prevent "spilling" keystrokes to background virtual console.
  
  This feature has one unpleasant side effect: if application fails to call
  `SDL_Exit` before termination or crashes with fatal signal, console is left
  in unusable state with keyboard not working and no possibility to switch
  virtual console. If user has a chance, he can login remotely and restore
  keyboard with `kbd_mode`, otherwise the only option is to reboot the machine.
  
  This patch fixes that problem by intercepting fatal signals (with `sigaction`)
  and process termination (with `atexit`), to restore keyboard state, if it
  wasn't properly restored with `SDL_Exit`.
  
  The function registered with `atexit` also restores original signal handlers,
  to prevent leaving invalid handlers after SDL library is unloaded, if it was
  loaded dynamically with `dlopen`.
  
  No signal handlers or `atexit` function are installed if SDL boolean hint
  `SDL_HINT_NO_SIGNAL_HANDLERS` is `SDL_TRUE`.
  
  Additionally, if environment variable `SDL_INPUT_LINUX_KEEP_KBD` exists,
  keyboard initialization function completely skips disabling keyboard. This
  can be useful for debugging."
  
  Fixes Bugzilla #4193.
  

• Files

• SDL_dbus.c
• SDL_dbus.h
• SDL_evdev.c
• SDL_evdev.h
• SDL_evdev_kbd.c
• SDL_evdev_kbd.h
• SDL_evdev_kbd_default_accents.h
• SDL_evdev_kbd_default_keymap.h
• SDL_fcitx.c
• SDL_fcitx.h
• SDL_ibus.c
• SDL_ibus.h
• SDL_ime.c
• SDL_ime.h
• SDL_udev.c
• SDL_udev.h

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• Git HTTP	https://git.kmx.io/kc3-lang/SDL.git
  Git SSH	git@git.kmx.io:kc3-lang/SDL.git
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