osmium::io::CompressionFactory Class Reference

#include <compression.hpp>

Public Types
using	create_compressor_type = std::function< osmium::io::Compressor *(int, fsync)>
using	create_decompressor_type_fd = std::function< osmium::io::Decompressor *(int)>
using	create_decompressor_type_buffer = std::function< osmium::io::Decompressor *(const char *, std::size_t)>

Public Member Functions
	CompressionFactory (const CompressionFactory &)=delete
CompressionFactory &	operator= (const CompressionFactory &)=delete
	CompressionFactory (CompressionFactory &&)=delete
CompressionFactory &	operator= (CompressionFactory &&)=delete
	~CompressionFactory () noexcept=default
bool	register_compression (osmium::io::file_compression compression, const create_compressor_type &create_compressor, const create_decompressor_type_fd &create_decompressor_fd, const create_decompressor_type_buffer &create_decompressor_buffer)
template<typename... TArgs>
std::unique_ptr< osmium::io::Compressor >	create_compressor (const osmium::io::file_compression compression, TArgs &&... args) const
std::unique_ptr< osmium::io::Decompressor >	create_decompressor (const osmium::io::file_compression compression, const int fd) const
std::unique_ptr< osmium::io::Decompressor >	create_decompressor (const osmium::io::file_compression compression, const char *buffer, const std::size_t size) const

Static Public Member Functions
static CompressionFactory &	instance ()

Private Types
using	callbacks_type = std::tuple< create_compressor_type, create_decompressor_type_fd, create_decompressor_type_buffer >
using	compression_map_type = std::map< const osmium::io::file_compression, callbacks_type >

Private Member Functions
	CompressionFactory ()=default
const callbacks_type &	find_callbacks (const osmium::io::file_compression compression) const

Private Attributes
compression_map_type	m_callbacks

Detailed Description

This singleton factory class is used to register compression algorithms used for reading and writing OSM files.

For each algorithm we store two functions that construct a compressor and decompressor object, respectively.

Member Typedef Documentation

callbacks_type

using osmium::io::CompressionFactory::callbacks_type = std::tuple<create_compressor_type, create_decompressor_type_fd, create_decompressor_type_buffer>

private

compression_map_type

using osmium::io::CompressionFactory::compression_map_type = std::map<const osmium::io::file_compression, callbacks_type>

private

create_compressor_type

using osmium::io::CompressionFactory::create_compressor_type = std::function<osmium::io::Compressor*(int, fsync)>

create_decompressor_type_buffer

using osmium::io::CompressionFactory::create_decompressor_type_buffer = std::function<osmium::io::Decompressor*(const char*, std::size_t)>

create_decompressor_type_fd

using osmium::io::CompressionFactory::create_decompressor_type_fd = std::function<osmium::io::Decompressor*(int)>

Constructor & Destructor Documentation

CompressionFactory() [1/3]

osmium::io::CompressionFactory::CompressionFactory ( )

privatedefault

CompressionFactory() [2/3]

osmium::io::CompressionFactory::CompressionFactory ( const CompressionFactory &  )

delete

CompressionFactory() [3/3]

osmium::io::CompressionFactory::CompressionFactory ( CompressionFactory &&  )

delete

~CompressionFactory()

osmium::io::CompressionFactory::~CompressionFactory ( )

defaultnoexcept

Member Function Documentation

create_compressor()

template<typename... TArgs>

std::unique_ptr< osmium::io::Compressor > osmium::io::CompressionFactory::create_compressor ( const osmium::io::file_compression  compression, TArgs &&...  args  ) const

inline

create_decompressor() [1/2]

std::unique_ptr< osmium::io::Decompressor > osmium::io::CompressionFactory::create_decompressor ( const osmium::io::file_compression  compression, const char *  buffer, const std::size_t  size  ) const

inline

create_decompressor() [2/2]

std::unique_ptr< osmium::io::Decompressor > osmium::io::CompressionFactory::create_decompressor ( const osmium::io::file_compression  compression, const int  fd  ) const

inline

find_callbacks()

const callbacks_type & osmium::io::CompressionFactory::find_callbacks ( const osmium::io::file_compression  compression ) const

inlineprivate

instance()

static CompressionFactory & osmium::io::CompressionFactory::instance ( )

inlinestatic

operator=() [1/2]

CompressionFactory & osmium::io::CompressionFactory::operator= ( CompressionFactory &&  )

delete

operator=() [2/2]

CompressionFactory & osmium::io::CompressionFactory::operator= ( const CompressionFactory &  )

delete

register_compression()

bool osmium::io::CompressionFactory::register_compression ( osmium::io::file_compression  compression, const create_compressor_type &  create_compressor, const create_decompressor_type_fd &  create_decompressor_fd, const create_decompressor_type_buffer &  create_decompressor_buffer  )

inline

Member Data Documentation

m_callbacks

compression_map_type osmium::io::CompressionFactory::m_callbacks

private

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

• include/osmium/io/compression.hpp