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SynchConsoleInput Class Reference

The following class defines synchronized input to a console device. More...

#include <synchconsole.h>

Inheritance diagram for SynchConsoleInput::

List of all members.

Public Methods
	SynchConsoleInput (char *inputFile)
	Initialize the console device. More...
	~SynchConsoleInput ()
	Deallocate console device. More...
char	GetChar ()
	Read a character, waiting if necessary. More...
Private Methods
void	CallBack ()
	called when a keystroke is available. More...
Private Attributes
ConsoleInput*	consoleInput
	the hardware keyboard. More...
Lock*	lock
	only one reader at a time. More...
Semaphore*	waitFor
	wait for callBack. More...

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Detailed Description

The following class defines synchronized input to a console device.

Definition at line 23 of file synchconsole.h.

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Constructor & Destructor Documentation

SynchConsoleInput::SynchConsoleInput ( char * inputFile )

Initialize the console device. SynchConsoleInput::SynchConsoleInput Initialize synchronized access to the keyboard "inputFile" -- if NULL, use stdin as console device otherwise, read from this file Definition at line 20 of file synchconsole.cc.

SynchConsoleInput::~SynchConsoleInput ( )

Deallocate console device. SynchConsoleInput::~SynchConsoleInput Deallocate data structures for synchronized access to the keyboard Definition at line 32 of file synchconsole.cc.

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Member Function Documentation

void SynchConsoleInput::CallBack ( ) [private, virtual]

called when a keystroke is available. SynchConsoleInput::CallBack Interrupt handler called when keystroke is hit; wake up anyone waiting. Reimplemented from CallBackObj. Definition at line 64 of file synchconsole.cc.

char SynchConsoleInput::GetChar ( )

Read a character, waiting if necessary. SynchConsoleInput::GetChar Read a character typed at the keyboard, waiting if necessary. Definition at line 45 of file synchconsole.cc. Referenced by UserProgKernel::SelfTest().

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Member Data Documentation

ConsoleInput * SynchConsoleInput::consoleInput [private]

the hardware keyboard. Definition at line 31 of file synchconsole.h.

Lock * SynchConsoleInput::lock [private]

only one reader at a time. Definition at line 32 of file synchconsole.h.

Semaphore * SynchConsoleInput::waitFor [private]

wait for callBack. Definition at line 33 of file synchconsole.h.

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

• synchconsole.h
• synchconsole.cc

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