mysql_dynamic_loader_scheme_file_imp Class Reference

#include <dynamic_loader_scheme_file_imp.h>

Static Public Member Functions
static void	init ()
	Initializes file:// scheme for dynamic loader for usage. More...
static void	deinit ()
	De-initializes RW lock, all other structures doesn't require any action. More...
static mysql_service_status_t	load (const char *urn, mysql_component_t **out_data) noexcept
	Loads components that are located in executable file specified by URN. More...
static mysql_service_status_t	unload (const char *urn) noexcept
	Unloads file that was previously loaded. More...

Private Types
typedef std::map< std::string, void * >	my_registry
typedef mysql_component_t *(*	list_components_func) ()

Static Private Attributes
static my_registry	object_files_list
static std::unordered_set< list_components_func >	library_entry_set
static mysql_rwlock_t	LOCK_dynamic_loader_scheme_file

Member Typedef Documentation

list_components_func

typedef mysql_component_t *(* mysql_dynamic_loader_scheme_file_imp::list_components_func) ()

private

my_registry

typedef std::map<std::string, void *> mysql_dynamic_loader_scheme_file_imp::my_registry

private

Member Function Documentation

deinit()

void mysql_dynamic_loader_scheme_file_imp::deinit ( )

static

De-initializes RW lock, all other structures doesn't require any action.

init()

void mysql_dynamic_loader_scheme_file_imp::init ( )

static

Initializes file:// scheme for dynamic loader for usage.

Initializes RW lock, all other structures should be empty. Shouldn't be called multiple times.

load()

mysql_service_status_t mysql_dynamic_loader_scheme_file_imp::load ( const char *  urn, mysql_component_t **  out_data  )

staticnoexcept

Loads components that are located in executable file specified by URN.

We assume that URN starts with file://, but accept any. Will not success when called multiple times on the same file.

Parameters

	urn	URN to file to load components from.
[out]	out_data	Pointer to pointer to MySQL component data structures to set result components data retrieved from specified file.

Returns

Status of performed operation

Return values

false	success
true	Failure, may be caused when name does not contain ://, cannot be located, is not proper executable file or does not contain proper initialization function.

unload()

mysql_service_status_t mysql_dynamic_loader_scheme_file_imp::unload ( const char *  urn )

staticnoexcept

Unloads file that was previously loaded.

The URN string must be exactly the same as one used during call to load. Although you can call load() on specified URN multiple times, subsequent calls unload() will always fail, and all components from specified file will be invalid after first call to unload().

Parameters

urn	URN to file to unload all components from.

Returns

Status of performed operation

Return values

false	success
true	failure

Member Data Documentation

library_entry_set

std::unordered_set< mysql_dynamic_loader_scheme_file_imp::list_components_func > mysql_dynamic_loader_scheme_file_imp::library_entry_set

staticprivate

LOCK_dynamic_loader_scheme_file

mysql_rwlock_t mysql_dynamic_loader_scheme_file_imp::LOCK_dynamic_loader_scheme_file

staticprivate

object_files_list

mysql_dynamic_loader_scheme_file_imp::my_registry mysql_dynamic_loader_scheme_file_imp::object_files_list

staticprivate

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

• components/libminchassis/dynamic_loader_scheme_file_imp.h
• components/libminchassis/dynamic_loader_scheme_file.cc