Operate parameters. More...

#include <mdbx.h++>

Public Member Functions
constexpr	operate_parameters () noexcept

constexpr	operate_parameters (const unsigned max_maps, const unsigned max_readers=0, const env::mode mode=env::mode::write_mapped_io, env::durability durability=env::durability::robust_synchronous, const env::reclaiming_options &reclaiming=env::reclaiming_options(), const env::operate_options &options=env::operate_options()) noexcept

constexpr	operate_parameters (const operate_parameters &) noexcept=default

constexpr operate_parameters &	operator= (const operate_parameters &) noexcept=default

MDBX_env_flags_t	make_flags (bool accede=true, bool use_subdirectory=false) const

Static Public Member Functions
static env::mode	mode_from_flags (MDBX_env_flags_t) noexcept

static env::durability	durability_from_flags (MDBX_env_flags_t) noexcept

static env::reclaiming_options	reclaiming_from_flags (MDBX_env_flags_t flags) noexcept

static env::operate_options	options_from_flags (MDBX_env_flags_t flags) noexcept

Public Attributes
unsigned	max_maps {0}
	The maximum number of named tables/maps for the environment. Zero means default value.

unsigned	max_readers {0}
	The maximum number of threads/reader slots for the environment. Zero means default value.

env::mode	mode {write_mapped_io}

env::durability	durability {robust_synchronous}

env::reclaiming_options	reclaiming

env::operate_options	options

Detailed Description

Operate parameters.

Constructor & Destructor Documentation

◆ operate_parameters() [1/3]

constexpr mdbx::env::operate_parameters::operate_parameters ( )

inlineconstexprnoexcept

◆ operate_parameters() [2/3]

constexpr mdbx::env::operate_parameters::operate_parameters	(	const unsigned	max_maps,
		const unsigned	max_readers = `0`,
		const env::mode	mode = `env::mode::write_mapped_io`,
		env::durability	durability = `env::durability::robust_synchronous`,
		const env::reclaiming_options &	reclaiming = `env::reclaiming_options()`,
		const env::operate_options &	options = `env::operate_options()`
	)

inlineconstexprnoexcept

◆ operate_parameters() [3/3]

constexpr mdbx::env::operate_parameters::operate_parameters ( const operate_parameters & )

constexprdefaultnoexcept

Member Function Documentation

◆ durability_from_flags()

static env::durability mdbx::env::operate_parameters::durability_from_flags ( MDBX_env_flags_t )

staticnoexcept

◆ make_flags()

MDBX_env_flags_t mdbx::env::operate_parameters::make_flags	(	bool	accede = `true`,
		bool	use_subdirectory = `false`
	)		const

Parameters

accede Allows accepting incompatible operating options in case the database is already being used by another process(es)

See also: MDBX_ACCEDE

Parameters

use_subdirectory use subdirectory to place the DB files

◆ mode_from_flags()

static env::mode mdbx::env::operate_parameters::mode_from_flags ( MDBX_env_flags_t )

staticnoexcept

◆ operator=()

constexpr operate_parameters & mdbx::env::operate_parameters::operator= ( const operate_parameters & )

constexprdefaultnoexcept

Member Data Documentation

◆ durability

env::durability mdbx::env::operate_parameters::durability {robust_synchronous}

◆ max_maps

unsigned mdbx::env::operate_parameters::max_maps {0}

The maximum number of named tables/maps for the environment. Zero means default value.

◆ max_readers

unsigned mdbx::env::operate_parameters::max_readers {0}

The maximum number of threads/reader slots for the environment. Zero means default value.

◆ mode

env::mode mdbx::env::operate_parameters::mode {write_mapped_io}

◆ options

env::operate_options mdbx::env::operate_parameters::options

◆ reclaiming

env::reclaiming_options mdbx::env::operate_parameters::reclaiming

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

mdbx.h++

Public Member Functions

Static Public Member Functions

Public Attributes