Buffered binary output. More...

#include <JBufferedIO.hh>

Inheritance diagram for JIO::JBufferedWriter:

Public Member Functions
	JBufferedWriter (JWriter *__out, const int __size=1048576)
	Constructor. More...

	~JBufferedWriter ()
	Destructor. More...

virtual bool	getStatus () const override
	Status of writer. More...

virtual int	write (const char *zbuf, int n) override
	Write byte array. More...

void	flush ()
	Write internal data to output. More...

JWriter &	operator<< (const JSerialisable &object)
	Write serialisable data object. More...

JWriter &	operator<< (const bool value)

JWriter &	operator<< (const char value)

JWriter &	operator<< (const unsigned char value)

JWriter &	operator<< (const short value)

JWriter &	operator<< (const unsigned short value)

JWriter &	operator<< (const int value)

JWriter &	operator<< (const unsigned int value)

JWriter &	operator<< (const long int value)

JWriter &	operator<< (const unsigned long int value)

JWriter &	operator<< (const long long int value)

JWriter &	operator<< (const unsigned long long int value)

JWriter &	operator<< (const float value)

JWriter &	operator<< (const double value)

JWriter &	operator<< (const long double value)

JWriter &	operator<< (const JLANG::JObjectID &value)

JWriter &	store (const JSerialisable &object)
	Write object. More...

template<class T >
JWriter &	store (const T &object)
	Write object. More...

	operator bool () const
	Type conversion operator. More...

bool	operator! () const
	Negated status of this object. More...

Protected Attributes
JLANG::JSinglePointer< JWriter >	out

char *	buffer
	internal buffer More...

int	size
	size of internal buffer More...

int	pos
	pointer to end of buffered data More...

Private Member Functions
	JBufferedWriter (const JBufferedWriter &)

	JBufferedWriter (JBufferedWriter &&)

JBufferedWriter &	operator= (const JBufferedWriter &)

JBufferedWriter &	operator= (JBufferedWriter &&)

Detailed Description

Buffered binary output.

This class implements the JWriter interface.

Definition at line 151 of file JBufferedIO.hh.

Constructor & Destructor Documentation

JIO::JBufferedWriter::JBufferedWriter	(	JWriter *	__out,
		const int	__size = `1048576`
	)

inline

Constructor.

Note that this object owns the writer pointed to.

Parameters

__out	pointer to writer
__size	size of internal buffer

Definition at line 162 of file JBufferedIO.hh.

                                                                 :
       out(__out)
     {
       size   = std::max(__size, 1024);
       buffer = new char[size];
 
       pos = 0;
     }

JIO::JBufferedWriter::~JBufferedWriter ( )

inline

Destructor.

Definition at line 175 of file JBufferedIO.hh.

     {
       flush();
 
       delete [] buffer;
     }

JIO::JBufferedWriter::JBufferedWriter ( const JBufferedWriter & )

private

JIO::JBufferedWriter::JBufferedWriter ( JBufferedWriter && )

private

Member Function Documentation

virtual bool JIO::JBufferedWriter::getStatus ( ) const

inlineoverridevirtual

Status of writer.

Returns: status of this writer

Implements JLANG::JAbstractObjectStatus.

Definition at line 188 of file JBufferedIO.hh.

     { 
       return (bool) *out;
     }

virtual int JIO::JBufferedWriter::write	(	const char *	zbuf,
		int	n
	)

inlineoverridevirtual

Write byte array.

Parameters

zbuf	pointer to byte array
n	number of bytes

Returns: number of bytes

Implements JLANG::JBinaryOutput.

Definition at line 201 of file JBufferedIO.hh.

     { 
       for (int i = 0; i != n; ) {
 
         int m = n - i;
 
         if (m > size - pos) {
 
           flush();
         
           if (m > size - pos) {
             m = size - pos;
           }
         }
 
         memcpy(buffer + pos, zbuf + i, m);
         
         i   += m;
         pos += m;
       }
 
       return n;
     }

void JIO::JBufferedWriter::flush ( )

inline

Write internal data to output.

Definition at line 229 of file JBufferedIO.hh.

     {
       pos -= out->write(buffer, pos); 
     }

JBufferedWriter& JIO::JBufferedWriter::operator= ( const JBufferedWriter & )

private

JBufferedWriter& JIO::JBufferedWriter::operator= ( JBufferedWriter && )

private

JWriter& JIO::JWriter::operator<< ( const JSerialisable & object )

inlineinherited

Write serialisable data object.

Parameters

object serialisable data object

Returns: JWriter

Definition at line 144 of file JSerialisable.hh.

     { 
       return object.write(*this); 
     }

JWriter& JIO::JWriter::operator<< ( const bool value )

inlineinherited

Definition at line 150 of file JSerialisable.hh.

150 { write((const char*) &value, sizeof(bool)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const char value )

inlineinherited

Definition at line 151 of file JSerialisable.hh.

151 { write((const char*) &value, sizeof(char)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const unsigned char value )

inlineinherited

Definition at line 152 of file JSerialisable.hh.

152 { write((const char*) &value, sizeof(unsigned char)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const short value )

inlineinherited

Definition at line 153 of file JSerialisable.hh.

153 { write((const char*) &value, sizeof(short)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const unsigned short value )

inlineinherited

Definition at line 154 of file JSerialisable.hh.

154 { write((const char*) &value, sizeof(unsigned short)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const int value )

inlineinherited

Definition at line 155 of file JSerialisable.hh.

155 { write((const char*) &value, sizeof(int)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const unsigned int value )

inlineinherited

Definition at line 156 of file JSerialisable.hh.

156 { write((const char*) &value, sizeof(unsigned int)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const long int value )

inlineinherited

Definition at line 157 of file JSerialisable.hh.

157 { write((const char*) &value, sizeof(long int)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const unsigned long int value )

inlineinherited

Definition at line 158 of file JSerialisable.hh.

158 { write((const char*) &value, sizeof(unsigned long int)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const long long int value )

inlineinherited

Definition at line 159 of file JSerialisable.hh.

159 { write((const char*) &value, sizeof(long long int)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const unsigned long long int value )

inlineinherited

Definition at line 160 of file JSerialisable.hh.

160 { write((const char*) &value, sizeof(unsigned long long int)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const float value )

inlineinherited

Definition at line 161 of file JSerialisable.hh.

161 { write((const char*) &value, sizeof(float)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const double value )

inlineinherited

Definition at line 162 of file JSerialisable.hh.

162 { write((const char*) &value, sizeof(double)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const long double value )

inlineinherited

Definition at line 163 of file JSerialisable.hh.

163 { write((const char*) &value, sizeof(long double)); return *this; }

JLANG::JBinaryOutput::write

virtual int write(const char *buffer, const int length)=0

Write byte array.

JWriter& JIO::JWriter::operator<< ( const JLANG::JObjectID & value )

inlineinherited

Definition at line 164 of file JSerialisable.hh.

164 { return (*this) << value.getID(); }

JLANG::JObjectID::getID

int getID() const

Get identifier.

Definition: JObjectID.hh:50

JWriter& JIO::JWriter::store ( const JSerialisable & object )

inlineinherited

Write object.

Parameters

object object

Returns: this writer

Definition at line 173 of file JSerialisable.hh.

     {
       return object.write(*this);
     }

template<class T >

JWriter& JIO::JWriter::store ( const T & object )

inlineinherited

Write object.

Parameters

object object

Returns: this writer

Definition at line 186 of file JSerialisable.hh.

     {
       return *this << object;
     }

JLANG::JAbstractObjectStatus::operator bool ( ) const

inlineinherited

Type conversion operator.

Returns: status of this object

Definition at line 33 of file JAbstractObjectStatus.hh.

     {
       return this->getStatus();
     }

bool JLANG::JAbstractObjectStatus::operator! ( ) const

inlineinherited

Negated status of this object.

Returns: negated status of this object

Definition at line 44 of file JAbstractObjectStatus.hh.

     {
       return !(this->getStatus());
     }

Member Data Documentation

JLANG::JSinglePointer<JWriter> JIO::JBufferedWriter::out

protected

Definition at line 236 of file JBufferedIO.hh.

char* JIO::JBufferedWriter::buffer

protected

internal buffer

Definition at line 238 of file JBufferedIO.hh.

int JIO::JBufferedWriter::size

protected

size of internal buffer

Definition at line 239 of file JBufferedIO.hh.

int JIO::JBufferedWriter::pos

protected

pointer to end of buffered data

Definition at line 240 of file JBufferedIO.hh.

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

JBufferedIO.hh

Public Member Functions

Protected Attributes

Private Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation