Mux_console Class Reference

Console multiplexer. More...

#include <mux_console.h>

Inheritance diagram for Mux_console:

List of all members.

Public Types
enum	{ SIZE = 8 }
Public Member Functions
int	write (char const *str, size_t len)
	Write a string of len chacters to the output.
int	getchar (bool blocking=true)
	read a charcater from the input.
int	char_avail () const
	Is input available?
	Mux_console ()
Mword	get_attributes () const
	deliver attributes of all subconsoles.
void	getchar_chance ()
virtual bool	register_console (Console *c, int pos=0)
	Register a console to be multiplexed.
bool	unregister_console (Console *c)
	Unregister a console from the multiplexer.
void	change_state (Mword any_true, Mword all_false, Mword mask, Mword bits)
	Change the state of a group of consoles specified by attributes.
Console *	find_console (Mword any_true)
	Find a console with a specific attribute.
void	start_exclusive (Mword any_true)
	Start exclusive mode for a specific console.
void	end_exclusive (Mword any_true)
	End exclusive mode for a specific console.
void	list_consoles ()
Private Attributes
int	_next_getchar
int	_items
Console *	_cons [SIZE]

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Detailed Description

Console multiplexer.

This implementation of the Console interface can be used to multiplex among some input, output, and in-out consoles.

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Member Enumeration Documentation

anonymous enum

Enumeration values: SIZE  The maximum number of consoles to be multiplexed.

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Constructor & Destructor Documentation

Mux_console::Mux_console (   )

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Member Function Documentation

void Mux_console::change_state (  Mword  any_true, Mword  all_false, Mword  mask, Mword  bits )

Change the state of a group of consoles specified by attributes. Parameters: any_true  match if console has any of these attributes all_false  match if console doesn't have any of these attributes

int Mux_console::char_avail (   )  const [virtual]

Is input available? This method can be implemented. It must return -1 if no information is available, 1 if at least one character is avialable, and 0 if no charachter is available. Reimplemented from Console.

void Mux_console::end_exclusive (  Mword  any_true  )

End exclusive mode for a specific console. Parameters: any_true  match to console which has set any bit of this bitmask

Console * Mux_console::find_console (  Mword  any_true  )

Find a console with a specific attribute. Parameters: any_true  match to console which has set any bit of this bitmask

Mword Mux_console::get_attributes (   )  const [virtual]

deliver attributes of all subconsoles. Reimplemented from Console.

int Mux_console::getchar (  bool  blocking = true  )  [virtual]

read a charcater from the input. Parameters: blocking  if true getchar blocks til a charcater is available. This method must be implemented in every implementation, but can simply return -1 for output only consoles. Reimplemented from Console. Reimplemented in Kconsole.

void Mux_console::getchar_chance (   )

Reimplemented in Kconsole.

void Mux_console::list_consoles (   )

bool Mux_console::register_console (  Console *  c, int  pos = 0 )  [virtual]

Register a console to be multiplexed. Parameters: cons  the Console to add. pos  the position of the console, normally not needed. Reimplemented in Kconsole.

void Mux_console::start_exclusive (  Mword  any_true  )

Start exclusive mode for a specific console. Only the one console which matches to any_true is enabled for input and output. All other consoles are disabled. Parameters: any_true  match to console which has set any bit of this bitmask

bool Mux_console::unregister_console (  Console *  c  )

Unregister a console from the multiplexer. Parameters: cons  the console to remove.

int Mux_console::write (  char const *  str, size_t  len )  [virtual]

Write a string of len chacters to the output. Parameters: str  the string to write (no zero termination is needed) len  the number of chacters to write. This method must be implemented in every implementation, but can simply do nothing for input only consoles. Reimplemented from Console.

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Member Data Documentation

Console* Mux_console::_cons[SIZE] [private]

int Mux_console::_items [private]

int Mux_console::_next_getchar [private]

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The documentation for this class was generated from the following files:

• mux_console.h
• mux_console.cc

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