RWCharFromStreambufInputStreamImp Class Reference

Concrete class connecting a narrow character stream to an iostreams narrow character buffer. More...

#include <rw/stream/RWCharFromStreambufInputStreamImp.h>

Inheritance diagram for RWCharFromStreambufInputStreamImp:

Public Member Functions
virtual	~RWCharFromStreambufInputStreamImp ()
virtual RWSize	available () const
virtual void	close ()
virtual bool	isBad () const
virtual bool	isEof () const
virtual bool	isFail () const
virtual bool	isGood () const
virtual char	read ()
virtual RWSize	read (char *charArray, RWSize numChars)
virtual void	readStringUntil (RWCString &string, char delim)
virtual RWSize	readUntil (char *charArray, RWSize maxSize, char delim)
virtual RWSize	skip (RWSize numUnits)
Public Member Functions inherited from RWCharInputStreamImp
virtual	~RWCharInputStreamImp ()
virtual RWCharInputStream	acquire ()
virtual void	release ()
Public Member Functions inherited from RWInputStreamImp
virtual	~RWInputStreamImp ()
Public Member Functions inherited from RWStreamImp
virtual	~RWStreamImp ()

Static Public Member Functions
static RWCharInputStream	make (std::streambuf &source)

Protected Member Functions
	RWCharFromStreambufInputStreamImp (std::streambuf &sourceBuff)
std::streambuf &	getSourceBuff ()
const std::streambuf &	getSourceBuff () const
Protected Member Functions inherited from RWCharInputStreamImp
	RWCharInputStreamImp ()
Protected Member Functions inherited from RWInputStreamImp
	RWInputStreamImp ()
Protected Member Functions inherited from RWStreamImp
	RWStreamImp ()
Protected Member Functions inherited from RWBodyBase
	RWBodyBase (const RWBodyBase &second)
	RWBodyBase (RWStaticCtor)
	RWBodyBase (void)
virtual	~RWBodyBase (void)
RWBodyBase &	operator= (const RWBodyBase &second)
Protected Member Functions inherited from RWTCountingBody< RWMutexLock >
	RWTCountingBody (const RWTCountingBody< RWMutexLock > &second)
	RWTCountingBody (RWStaticCtor)
	RWTCountingBody (unsigned initCount=0)
RWTCountingBody< RWMutexLock > &	operator= (const RWTCountingBody< RWMutexLock > &second)
	~RWTCountingBody (void)
unsigned	addReference (void)
unsigned	references (void) const
unsigned	removeReference (void)
Protected Member Functions inherited from RWTMonitor< RWMutexLock >
	RWTMonitor (const RWTMonitor< RWMutexLock > &second)
	RWTMonitor (RWStaticCtor)
	RWTMonitor (void)
	~RWTMonitor (void)
void	acquire (void)
bool	isAcquired (void) const
RWTMonitor< RWMutexLock > &	monitor (void) const
RWMutexLock &	mutex (void)
RWTMonitor< RWMutexLock > &	operator= (const RWTMonitor< RWMutexLock > &)
void	release (void)
bool	tryAcquire (void)

Additional Inherited Members
Protected Types inherited from RWTCountingBody< RWMutexLock >
typedef RWTLockGuard< RWTMonitor< RWMutexLock > >	LockGuard
typedef RWTTryLockGuard< RWTMonitor< RWMutexLock > >	TryLockGuard
typedef RWTUnlockGuard< RWTMonitor< RWMutexLock > >	UnlockGuard
Protected Types inherited from RWTMonitor< RWMutexLock >
typedef RWTLockGuard< RWTMonitor< RWMutexLock > >	LockGuard
typedef RWTTryLockGuard< RWTMonitor< RWMutexLock > >	TryLockGuard
typedef RWTUnlockGuard< RWTMonitor< RWMutexLock > >	UnlockGuard

Detailed Description

Concrete class connecting a narrow character stream, to an iostreams narrow character buffer. The iostreams buffer is used as the source for the data read from the binary stream. The iostreams buffer must be opened in binary mode. Implements the body idiom from the handle-body pattern.

Constructor & Destructor Documentation

~RWCharFromStreambufInputStreamImp()

virtual RWCharFromStreambufInputStreamImp::~RWCharFromStreambufInputStreamImp ( )

virtual

Destructor.

RWCharFromStreambufInputStreamImp()

RWCharFromStreambufInputStreamImp::RWCharFromStreambufInputStreamImp ( std::streambuf & sourceBuff )

inlineprotected

Initializes the reference to the iostreams std::streambuf, that will be used as the source of narrow characters. Throws no exceptions.

Parameters

sourceBuff

The iostreams std::streambuf that will serve as the source of narrow characters.

Member Function Documentation

available()

virtual RWSize RWCharFromStreambufInputStreamImp::available ( ) const

virtual

Returns the number of narrow characters that can be read from the iostreams std::streambuf, which is used as the source of narrow characters without blocking.

Implements RWInputStreamImp.

close()

virtual void RWCharFromStreambufInputStreamImp::close ( )

virtual

This function does nothing. The user is responsible for closing the iostreams std::streambuf, which is used as the source of narrow characters.

Implements RWStreamImp.

getSourceBuff() [1/2]

std::streambuf & RWCharFromStreambufInputStreamImp::getSourceBuff ( )

inlineprotected

These functions return a reference to the iostreams std::streambuf, which is used as the source of narrow characters.

getSourceBuff() [2/2]

const std::streambuf & RWCharFromStreambufInputStreamImp::getSourceBuff ( ) const

inlineprotected

These functions return a reference to the iostreams std::streambuf, which is used as the source of narrow characters.

isBad()

virtual bool RWCharFromStreambufInputStreamImp::isBad ( ) const

virtual

These functions return true if the last operation performed on the iostreams std::streambuf failed.

Implements RWStreamImp.

isEof()

virtual bool RWCharFromStreambufInputStreamImp::isEof ( ) const

virtual

Returns true if there is no narrow character available from the iostreams std::streambuf, used as the source of narrow characters.

Implements RWInputStreamImp.

isFail()

virtual bool RWCharFromStreambufInputStreamImp::isFail ( ) const

virtual

These functions return true if the last operation performed on the iostreams std::streambuf failed.

Implements RWStreamImp.

isGood()

virtual bool RWCharFromStreambufInputStreamImp::isGood ( ) const

virtual

Returns true if the last operation performed on the iostreams std::streambuf succeeded.

Implements RWStreamImp.

make()

static RWCharInputStream RWCharFromStreambufInputStreamImp::make ( std::streambuf & source )

inlinestatic

Constructs an RWCharFromStreambufInputStreamImp instance that uses source as its source of narrow characters, and returns a handle to it. Throws no exceptions.

Parameters

source

The iostreams std::streambuf that is used as the source of narrow characters.

read() [1/2]

virtual char RWCharFromStreambufInputStreamImp::read ( )

virtual

Reads a single narrow character from the iostreams std::streambuf used as the source of narrow characters. Throws exception RWExternalStreamException and propagates any other exception thrown by the internal iostreams stream buffer object.

Implements RWCharInputStreamImp.

read() [2/2]

virtual RWSize RWCharFromStreambufInputStreamImp::read ( char * charArray, RWSize numChars )

virtual

Reads an array of narrow characters from the iostreams std::streambuf used as the source of narrow characters. The array must be pre-allocated to contain at least numChars elements. The function returns the actual number of narrow characters extracted from the iostreams std::streambuf. Throws exception RWExternalStreamException and propagates any other exception thrown by the internal iostreams stream buffer object.

Parameters

charArray	A pointer to the first element of the array.
numChars	The number of narrow characters to be read from the stream.

Implements RWCharInputStreamImp.

readStringUntil()

virtual void RWCharFromStreambufInputStreamImp::readStringUntil ( RWCString & string, char delim )

virtual

Reads narrow characters from the iostreams std::streambuf used as the source of narrow characters until the last narrow character read is equal to delim, or until the end of the input sequence is reached. The narrow characters read are stored in string. If the last narrow character extracted is equal to delim, then it is not stored in string.

Parameters

string	Reference to the narrow string receiving the narrow characters extracted from the iostreams std::streambuf.
delim	Narrow character value used as a delimiter.

Implements RWCharInputStreamImp.

readUntil()

virtual RWSize RWCharFromStreambufInputStreamImp::readUntil ( char * charArray, RWSize maxSize, char delim )

virtual

Reads narrow character(s) from the iostreams std::streambuf, used as its source of narrow characters, until the last narrow character read is equal to delim, or maxSize narrow character(s) have been read, or the end of the input sequence is reached. The narrow character(s) read are stored in charArray. The function returns the actual number of narrow character(s) inserted into charArray. If the last narrow character extracted is equal to delim, then it is not stored in charArray.

Parameters

charArray	A pointer to the array receiving the narrow characters(s) extracted from the iostreams std::streambuf.
maxSize	The maximum number of narrow character(s) to be read.
delim	The narrow character value used as a delimiter.

Implements RWCharInputStreamImp.

skip()

virtual RWSize RWCharFromStreambufInputStreamImp::skip ( RWSize numUnits )

virtual

Skips numUnits narrow characters from the input sequence if possible. The function returns the actual number of narrow characters skipped, which can be any value between 0 and numUnits.

Parameters

numUnits

The number of narrow characters to be skipped.

Implements RWInputStreamImp.