Poco::BasicUnbufferedStreamBuf< ch, tr > Class Template Reference

#include <UnbufferedStreamBuf.h>

Inheritance diagram for Poco::BasicUnbufferedStreamBuf< ch, tr >:

Collaboration diagram for Poco::BasicUnbufferedStreamBuf< ch, tr >:

Public Member Functions
	BasicUnbufferedStreamBuf ()
	~BasicUnbufferedStreamBuf ()
virtual int_type	overflow (int_type c)
virtual int_type	underflow ()
virtual int_type	uflow ()
virtual int_type	pbackfail (int_type c)
virtual std::streamsize	xsgetn (char_type *p, std::streamsize count)

Protected Types
typedef std::basic_streambuf< ch, tr >	Base
typedef std::basic_ios< ch, tr >	IOS
typedef ch	char_type
typedef tr	char_traits
typedef Base::int_type	int_type
typedef Base::pos_type	pos_type
typedef Base::off_type	off_type
typedef IOS::openmode	openmode

Static Protected Member Functions
static int_type	charToInt (char_type c)

Private Member Functions
virtual int_type	readFromDevice ()
virtual int_type	writeToDevice (char_type)
	BasicUnbufferedStreamBuf (const BasicUnbufferedStreamBuf &)
BasicUnbufferedStreamBuf &	operator= (const BasicUnbufferedStreamBuf &)

Private Attributes
int_type	_pb
bool	_ispb

Detailed Description

template<typename ch, typename tr>
class Poco::BasicUnbufferedStreamBuf< ch, tr >

This is an implementation of an unbuffered streambuf that greatly simplifies the implementation of custom streambufs of various kinds. Derived classes only have to override the methods readFromDevice() or writeToDevice().

Definition at line 32 of file UnbufferedStreamBuf.h.

Member Typedef Documentation

Base

template<typename ch , typename tr >

typedef std::basic_streambuf<ch, tr> Poco::BasicUnbufferedStreamBuf< ch, tr >::Base

protected

Definition at line 40 of file UnbufferedStreamBuf.h.

char_traits

template<typename ch , typename tr >

typedef tr Poco::BasicUnbufferedStreamBuf< ch, tr >::char_traits

protected

Definition at line 43 of file UnbufferedStreamBuf.h.

char_type

template<typename ch , typename tr >

typedef ch Poco::BasicUnbufferedStreamBuf< ch, tr >::char_type

protected

Definition at line 42 of file UnbufferedStreamBuf.h.

int_type

template<typename ch , typename tr >

typedef Base::int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::int_type

protected

Definition at line 44 of file UnbufferedStreamBuf.h.

IOS

template<typename ch , typename tr >

typedef std::basic_ios<ch, tr> Poco::BasicUnbufferedStreamBuf< ch, tr >::IOS

protected

Definition at line 41 of file UnbufferedStreamBuf.h.

off_type

template<typename ch , typename tr >

typedef Base::off_type Poco::BasicUnbufferedStreamBuf< ch, tr >::off_type

protected

Definition at line 46 of file UnbufferedStreamBuf.h.

openmode

template<typename ch , typename tr >

typedef IOS::openmode Poco::BasicUnbufferedStreamBuf< ch, tr >::openmode

protected

Definition at line 47 of file UnbufferedStreamBuf.h.

pos_type

template<typename ch , typename tr >

typedef Base::pos_type Poco::BasicUnbufferedStreamBuf< ch, tr >::pos_type

protected

Definition at line 45 of file UnbufferedStreamBuf.h.

Constructor & Destructor Documentation

BasicUnbufferedStreamBuf() [1/2]

template<typename ch , typename tr >

Poco::BasicUnbufferedStreamBuf< ch, tr >::BasicUnbufferedStreamBuf ( )

inline

Definition at line 50 of file UnbufferedStreamBuf.h.

~BasicUnbufferedStreamBuf()

template<typename ch , typename tr >

Poco::BasicUnbufferedStreamBuf< ch, tr >::~BasicUnbufferedStreamBuf ( )

inline

Definition at line 58 of file UnbufferedStreamBuf.h.

BasicUnbufferedStreamBuf() [2/2]

template<typename ch , typename tr >

Poco::BasicUnbufferedStreamBuf< ch, tr >::BasicUnbufferedStreamBuf ( const BasicUnbufferedStreamBuf< ch, tr > & )

private

Member Function Documentation

charToInt()

template<typename ch , typename tr >

static int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::charToInt ( char_type c )

inlinestaticprotected

Definition at line 139 of file UnbufferedStreamBuf.h.

operator=()

template<typename ch , typename tr >

BasicUnbufferedStreamBuf & Poco::BasicUnbufferedStreamBuf< ch, tr >::operator= ( const BasicUnbufferedStreamBuf< ch, tr > & )

private

overflow()

template<typename ch , typename tr >

virtual int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::overflow ( int_type c )

inlinevirtual

Definition at line 62 of file UnbufferedStreamBuf.h.

pbackfail()

template<typename ch , typename tr >

virtual int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::pbackfail ( int_type c )

inlinevirtual

Definition at line 106 of file UnbufferedStreamBuf.h.

readFromDevice()

template<typename ch , typename tr >

virtual int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::readFromDevice ( )

inlineprivatevirtual

Reimplemented in Poco::NullStreamBuf.

Definition at line 145 of file UnbufferedStreamBuf.h.

uflow()

template<typename ch , typename tr >

virtual int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::uflow ( )

inlinevirtual

Definition at line 88 of file UnbufferedStreamBuf.h.

underflow()

template<typename ch , typename tr >

virtual int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::underflow ( )

inlinevirtual

Definition at line 70 of file UnbufferedStreamBuf.h.

writeToDevice()

template<typename ch , typename tr >

virtual int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::writeToDevice ( char_type )

inlineprivatevirtual

Definition at line 150 of file UnbufferedStreamBuf.h.

xsgetn()

template<typename ch , typename tr >

virtual std::streamsize Poco::BasicUnbufferedStreamBuf< ch, tr >::xsgetn ( char_type * p, std::streamsize count )

inlinevirtual

Some platforms (for example, Compaq C++) have buggy implementations of xsgetn that handle null buffers incorrectly. Anyway, it does not hurt to provide an optimized implementation of xsgetn for this streambuf implementation.

Definition at line 120 of file UnbufferedStreamBuf.h.

Member Data Documentation

_ispb

template<typename ch , typename tr >

bool Poco::BasicUnbufferedStreamBuf< ch, tr >::_ispb

private

Definition at line 156 of file UnbufferedStreamBuf.h.

_pb

template<typename ch , typename tr >

int_type Poco::BasicUnbufferedStreamBuf< ch, tr >::_pb

private

Definition at line 155 of file UnbufferedStreamBuf.h.

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

• C:/Users/lachl/Downloads/ArkServerAPI_NEW/ASE/AseApi-main/include/Poco/Poco/UnbufferedStreamBuf.h