Cpl::Io::Stdio::Input_ Class Reference

This concrete class implements a Input stream using the underlying platform's native OS 'file interface' for the C library's stdin, stdout, and stderr streams. More...

Detailed Description

This concrete class implements a Input stream using the underlying platform's native OS 'file interface' for the C library's stdin, stdout, and stderr streams.

This class is intended to be a helper class and/or implementation inheritance parent class than an class used directly by the Application.

#include <Input_.h>

Inheritance diagram for Cpl::Io::Stdio::Input_:

Collaboration diagram for Cpl::Io::Stdio::Input_:

Public Member Functions
	Input_ (int fd)
	Constructor.
	Input_ (void *handle)
	Constructor.
	Input_ (Cpl::Io::Descriptor streamfd)
	Constructor.
	Input_ (void)
	Constructor.
	~Input_ (void)
	Destructor.
void	activate (int fd)
	Activates and/or resets the underlying 'fd' for the stream.
void	activate (void *handle)
	Activates and/or resets the underlying 'handle' for the stream.
void	activate (Cpl::Io::Descriptor streamfd)
	Activates and/or resets the underlying 'streamfd' for the stream.
bool	isOpened ()
	This method returns true if the file was successfully open and/or is still opened (i.e.
bool	read (void *buffer, int numBytes, int &bytesRead)
	See Cpl::Io::Input.
bool	available ()
	See Cpl::Io::Input.
bool	isEos ()
	See Cpl::Io::IsEos.
void	close ()
	See Cpl::Io::Input.
Public Member Functions inherited from Cpl::Io::Input
virtual bool	read (char &c)
	Reads a single byte from the stream.
virtual bool	read (Cpl::Text::String &destString)
	Reads N bytes into the String's internal buffer.
virtual	~Input ()
	Lets the make the destructor virtual.
Public Member Functions inherited from Cpl::Io::Close
virtual	~Close ()
	Lets the make the destructor virtual.
Public Member Functions inherited from Cpl::Container::Item
bool	insert_ (void *newContainerPtr)
	Helper method to trap when inserting an item in multiple containers.
bool	isInContainer_ (const void *containerPtr) const noexcept
	Returns 'true' if the instance is in the specified container.
Public Member Functions inherited from Cpl::Io::IsEos
virtual	~IsEos ()
	Lets the make the destructor virtual.

Protected Attributes
Cpl::Io::Descriptor	m_inFd
	Stream Handle.
bool	m_inEos
	Cache end-of-stream status.

Friends
class	InputOutput_
class	Cpl::Io::File::Input
class	Cpl::Io::File::InputOutput

Additional Inherited Members
Static Public Member Functions inherited from Cpl::Container::Item
static void	remove_ (Item *itemPtr) noexcept
	Helper method to do the proper 'clean-up' for the multiple-containers-error-trap when removing an item from a container.
Public Attributes inherited from Cpl::Container::Item
void *	m_nextPtr_
	The link field.
void *	m_inListPtr_
	Debug field.
Protected Member Functions inherited from Cpl::Container::Item
	Item ()
	Constructor.
	Item (const char *)
	Constructor used ONLY with the child class MapItem: -->special constructor to allow a Map to be statically allocated.

Constructor & Destructor Documentation

Input_() [1/4]

Cpl::Io::Stdio::Input_::Input_

(

int

fd

)

Constructor.

'fd' is a the 'file/stream descriptor' of a existing/opened stream.

Input_() [2/4]

Cpl::Io::Stdio::Input_::Input_

(

void *

handle

)

Constructor.

'handle' is a the 'file/stream descriptor' of a existing/opened stream.

Input_() [3/4]

Cpl::Io::Stdio::Input_::Input_

(

Cpl::Io::Descriptor

streamfd

)

Constructor.

'streamfd' is a the 'file/stream descriptor' of a existing/opened stream.

Input_() [4/4]

Cpl::Io::Stdio::Input_::Input_

(

void

)

Constructor.

No underlying file descriptor - the stream must be activated before using

~Input_()

Cpl::Io::Stdio::Input_::~Input_

(

void

)

Destructor.

Member Function Documentation

activate() [1/3]

void Cpl::Io::Stdio::Input_::activate

(

Cpl::Io::Descriptor

streamfd

)

Activates and/or resets the underlying 'streamfd' for the stream.

If the current 'fd' is not in the closed state - a fatal error is generated

activate() [2/3]

void Cpl::Io::Stdio::Input_::activate

(

int

fd

)

Activates and/or resets the underlying 'fd' for the stream.

If the current 'fd' is not in the closed state - a fatal error is generated

activate() [3/3]

void Cpl::Io::Stdio::Input_::activate

(

void *

handle

)

Activates and/or resets the underlying 'handle' for the stream.

If the current 'fd' is not in the closed state - a fatal error is generated

available()

bool Cpl::Io::Stdio::Input_::available ( )

virtual

See Cpl::Io::Input.

Implements Cpl::Io::Input.

close()

void Cpl::Io::Stdio::Input_::close ( )

virtual

See Cpl::Io::Input.

Implements Cpl::Io::Close.

Reimplemented in Cpl::Io::Stdio::StdIn.

isEos()

bool Cpl::Io::Stdio::Input_::isEos ( )

virtual

See Cpl::Io::IsEos.

Implements Cpl::Io::IsEos.

isOpened()

bool Cpl::Io::Stdio::Input_::isOpened

(

)

This method returns true if the file was successfully open and/or is still opened (i.e.

close() has not been called). Note: it is okay to call other methods in the class if the file is not open - i.e. nothing 'bad' will happen and the method will return 'failed' status (when appropriate).

read()

bool Cpl::Io::Stdio::Input_::read ( void *  buffer, int  numBytes, int &  bytesRead  )

virtual

See Cpl::Io::Input.

Implements Cpl::Io::Input.

Member Data Documentation

m_inEos

bool Cpl::Io::Stdio::Input_::m_inEos

protected

Cache end-of-stream status.

m_inFd

Cpl::Io::Descriptor Cpl::Io::Stdio::Input_::m_inFd

protected

Stream Handle.

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

• Cpl/Io/Stdio/Input_.h