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	shm_open is a POSIX function creating an in-memory file. Using it simplifies the code and removes the dependency on XDG_RUNTIME_DIR. The only downside is that we need to generate a random name for the shm file.
		
			
				
	
	
		
			32 lines
		
	
	
	
		
			1.4 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			32 lines
		
	
	
	
		
			1.4 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
wlroots reads these environment variables
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wlroots specific
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* *WLR_DRM_DEVICES*: specifies the DRM devices (as a colon separated list)
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  instead of auto probing them. The first existing device in this list is
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  considered the primary DRM device.
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* *WLR_DRM_NO_ATOMIC*: set to 1 to use legacy DRM interface instead of atomic
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  mode setting
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* *WLR_LIBINPUT_NO_DEVICES*: set to 1 to not fail without any input devices
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* *WLR_BACKENDS*: comma-separated list of backends to use (available backends:
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  wayland, x11, headless)
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* *WLR_WL_OUTPUTS*: when using the wayland backend specifies the number of outputs
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* *WLR_X11_OUTPUTS*: when using the X11 backend specifies the number of outputs
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* *WLR_HEADLESS_OUTPUTS*: when using the headless backend specifies the number
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  of outputs
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* *WLR_NO_HARDWARE_CURSORS*: set to 1 to use software cursors instead of
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  hardware cursors
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* *WLR_SESSION*: specifies the wlr\_session to be used (available sessions:
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  logind/systemd, direct)
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rootston specific
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------------------
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* *XKB_DEFAULT_RULES*, *XKB_DEFAULT_MODEL*, *XKB_DEFAULT_LAYOUT*,
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  *XKB_DEFAULT_VARIANT*, *XKB_DEFAULT_OPTIONS*: xkb setup
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generic
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-------
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* *DISPLAY*: if set probe X11 backend in *wlr_backend_autocreate*
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* *WAYLAND_DISPLAY*, *_WAYLAND_DISPLAY*, *WAYLAND_SOCKET*: if set probe Wayland
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  backend in *wlr_backend_autocreate*
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* *XCURSOR_PATH*: directory where xcursors are located
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