paged_buffer Class Reference

high-performance resizable buffer of bytes More...

#include <common.h>

List of all members.

Public Member Functions

paged_buffer (byte_allocator &data_allocator, byte_allocator &tmp_allocator, size_t page_size)

constructor

~paged_buffer ()

paged_buffer & operator<< (ub1_t symbol)

pushes symbol to buffer

paged_buffer & operator<< (const char *x)

pushes string to buffer

paged_buffer & append (const ub1_t *x, size_t size)

pushes bytes to buffer

const char * persist ()

persists paged blocks into one permanent block

const ub1_t * persist (size_t &size_)

persists paged blocks into one permanent block

void reset ()

persists paged blocks into one permanent block (internal allocator) if internally only one block has been allocated then class dosn't make a copy - it simply returns the pointer

size_t size () const

calculates the size of persisted chars

byte_allocator & get_tmp_allocator ()

shares memory resource for a while

size_t get_page_size () const

returns page size

Private Member Functions

void add_page ()

adds page

const ub1_t * _persist (size_t &size_)

persists paged blocks into one permanent block

const char * _persist ()

persists paged blocks into null terminated string

Private Attributes

byte_allocator & _data_allocator

internal allocator for depot

byte_allocator & _tmp_allocator

internal allocator for data

paged_store_t _buffer

paged buffer

size_t _size

size of the one page of buffer

size_t _pos

current position inside the page

ub1_t * _ptr

pointer to current page

ub1_t * _primary

head of the pages

Detailed Description

high-performance resizable buffer of bytes

Definition at line 250 of file common.h.

Constructor & Destructor Documentation

paged_buffer::paged_buffer	(	byte_allocator &	data_allocator,
		byte_allocator &	tmp_allocator,
		size_t	page_size
	)

constructor

Parameters:

data_allocator	allocator for internal data pages
tmp_allocator	allocator for temporary needs
page_size	page size

Definition at line 316 of file common.cpp.

References _data_allocator, _primary, _ptr, _size, and byte_allocator::allocate().

paged_buffer::~paged_buffer ( )

Definition at line 322 of file common.cpp.

Member Function Documentation

paged_buffer & paged_buffer::operator<< ( ub1_t symbol ) [inline]

pushes symbol to buffer

Parameters:

symbol

input symbol

Definition at line 658 of file common.hpp.

References _pos, _ptr, _size, and add_page().

paged_buffer & paged_buffer::operator<< ( const char * x ) [inline]

pushes string to buffer

Parameters:

x	input string

Definition at line 671 of file common.hpp.

References _pos, _ptr, _size, and add_page().

paged_buffer & paged_buffer::append	(	const ub1_t *	x,
		size_t	size
	)			`[inline]`

pushes bytes to buffer

Parameters:

x	input byte buffer
size	size of buffer

Definition at line 686 of file common.hpp.

References _pos, _ptr, _size, and add_page().

Referenced by buffer_loader::load(), and byte_manager::parseCharRef().

const char * paged_buffer::persist ( ) [inline]

persists paged blocks into one permanent block

Definition at line 709 of file common.hpp.

References _buffer, _persist(), _pos, _primary, and base_list< T >::empty().

Referenced by xml_processor::_parseCharData(), xml_processor::parseCDATA(), byte_manager::parseComment(), dtd_processor::parseEntityDef(), xml_processor::parseGeneralReference(), byte_manager::parseName(), dtd_processor::parsePEReference(), byte_manager::parsePI(), byte_manager::parseQuotedValue(), byte_manager::parseValue(), and tokenValues().

const ub1_t * paged_buffer::persist ( size_t & size_ ) [inline]

persists paged blocks into one permanent block

Parameters:

size_

[out] the size of buffer

Definition at line 725 of file common.hpp.

References _buffer, _persist(), _pos, _primary, and base_list< T >::empty().

void paged_buffer::reset ( ) [inline]

persists paged blocks into one permanent block (internal allocator) if internally only one block has been allocated then class dosn't make a copy - it simply returns the pointer

Definition at line 742 of file common.hpp.

References _buffer, _pos, _primary, _ptr, and base_list< T >::clear().

Referenced by xml_processor::_parseCharData(), xml_processor::parseCDATA(), byte_manager::parseComment(), dtd_processor::parseEntityDef(), xml_processor::parseGeneralReference(), byte_manager::parseName(), dtd_processor::parsePEReference(), byte_manager::parsePI(), byte_manager::parseQuotedValue(), byte_manager::parseValue(), byte_manager::reset_all_tmp(), byte_manager::resolveEntity(), and tokenValues().