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SynchConsoleOutput Class Reference

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

#include <synchconsole.h>

Inheritance diagram for SynchConsoleOutput::

List of all members.

Public Methods
	SynchConsoleOutput (char *outputFile)
	Initialize the console device. More...
	~SynchConsoleOutput ()
void	PutChar (char ch)
	Write a character, waiting if necessary. More...
Private Methods
void	CallBack ()
	called when a keystroke is available. More...
Private Attributes
ConsoleOutput*	consoleOutput
	the hardware display. More...
Lock*	lock
	only one writer at a time. More...
Semaphore*	waitFor
	wait for callBack. More...

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Detailed Description

The following class defines synchronized output to a console device.

Definition at line 41 of file synchconsole.h.

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Constructor & Destructor Documentation

SynchConsoleOutput::SynchConsoleOutput ( char * outputFile )

Initialize the console device. SynchConsoleOutput::SynchConsoleOutput Initialize synchronized access to the console display "outputFile" -- if NULL, use stdout as console device otherwise, read from this file Definition at line 77 of file synchconsole.cc.

SynchConsoleOutput::~SynchConsoleOutput ( )

SynchConsoleOutput::~SynchConsoleOutput Deallocate data structures for synchronized access to the keyboard Definition at line 89 of file synchconsole.cc.

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Member Function Documentation

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

called when a keystroke is available. SynchConsoleOutput::CallBack Interrupt handler called when it's safe to send the next character can be sent to the display. Reimplemented from CallBackObj. Definition at line 117 of file synchconsole.cc.

void SynchConsoleOutput::PutChar ( char ch )

Write a character, waiting if necessary. SynchConsoleOutput::PutChar Write a character to the console display, waiting if necessary. Definition at line 102 of file synchconsole.cc. Referenced by UserProgKernel::SelfTest().

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Member Data Documentation

ConsoleOutput * SynchConsoleOutput::consoleOutput [private]

the hardware display. Definition at line 49 of file synchconsole.h.

Lock * SynchConsoleOutput::lock [private]

only one writer at a time. Definition at line 50 of file synchconsole.h.

Semaphore * SynchConsoleOutput::waitFor [private]

wait for callBack. Definition at line 51 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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