The Brave New GGI World
-------------------------
Definitions:
------------
event: A keypress, mouse movement, or command
that is passed through an evstack
evstack: A handler that processes/filters/
acts on events sent to it.
stack tree: A tree of evstacks
/dev/event: At any point in the tree, a /dev/event
`hook' can be inserted that reads
events from the parent of the node,
and can write events to the child.
Allows for user-space implementation
of what would normally be kernel code.
scroller: An interface to control text consoles.
Provides mode setting, scrolling,
font control, text display, etc.
Display can be KGI driver, `null',
a Braille display, etc...
input device: A special evstack that generates
keypress/mouse/etc events and
receives control (head switch,
capslock, etc) events.
output device: (ie, pc speaker) receives control
events.
input_stack: The stack tree that processes
events from input devices.
console_stack: The stack tree that recieves CmdTtyWrite
events
termstack: A VT's emulation stack. Recieves CmdTtyWrite
events, draws on a scroller.
The Overview
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head[0]
|
|----input devices ----------\
| |
| input_stack
| |
| console_stack <- hold active VT#
| / | \
| xterm xterm xterm <- xterm emu termstacks
| | | |
| VT1 VT2 VT3 <- scrollers
| | | |
| \ | /
| \ | /
| KGI Head 0
|
\-----output_devices
-- Jason McMullan - Linux - GGI - http://pepsi.visus.com/~jmcc NT 5.0 is the last nail in the Unix coffin. Interestingly, Unix isn't in the coffin... It's wondering what the heck is sealing itself into a wooden box 6 feet underground...- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu