s_mysql_external_program_execution Struct Reference

A service to setup and execute multi-lingual stored procedures. More...

#include <language_service.h>

Public Attributes
mysql_service_status_t(*	init )(stored_program_handle sp, stored_program_statement_handle sp_statement, external_program_handle *lang_sp)
	Create and initialize stored program state if language is supported. More...
mysql_service_status_t(*	deinit )(THD *thd, external_program_handle lang_sp, stored_program_handle sp)
	Deinits and cleans up stored program state. More...
mysql_service_status_t(*	parse )(external_program_handle lang_sp, stored_program_statement_handle sp_statement)
	Parse given external program. More...
mysql_service_status_t(*	execute )(external_program_handle lang_sp, stored_program_statement_handle sp_statement)
	Execute given external program. More...

Detailed Description

A service to setup and execute multi-lingual stored procedures.

Member Data Documentation

deinit

mysql_service_status_t(* s_mysql_external_program_execution::deinit) (THD *thd, external_program_handle lang_sp, stored_program_handle sp)

Deinits and cleans up stored program state.

Parameters

[in]	thd	(optional) The THD this stored program was attached to.
[in]	lang_sp	(optional) The stored program state to clean up.
[in]	sp	(optional) The stored program used for associating language sp state when lang_sp was created.

Note

: At least one of lang_sp or sp should be provided.

Returns

status of de-initialization

Return values

false	Success
true	Error

execute

mysql_service_status_t(* s_mysql_external_program_execution::execute) (external_program_handle lang_sp, stored_program_statement_handle sp_statement)

Execute given external program.

Parameters

[in]	lang_sp	The stored program state
[in]	sp_statement	The statement where this stored program is executed (optional).

Returns

Status of execution

Return values

false	Success
true	Error

init

mysql_service_status_t(* s_mysql_external_program_execution::init) (stored_program_handle sp, stored_program_statement_handle sp_statement, external_program_handle *lang_sp)

Create and initialize stored program state if language is supported.

Parameters

[in]	sp	The stored program used for associating language sp state.
[in]	sp_statement	The statement where this stored program is created (optional).
[out]	lang_sp	external program pointer if created, nullptr otherwise.

Returns

status of initialization

Return values

false	Success
true	Error

parse

mysql_service_status_t(* s_mysql_external_program_execution::parse) (external_program_handle lang_sp, stored_program_statement_handle sp_statement)

Parse given external program.

Parameters

[in]	lang_sp	The stored program state
[in]	sp_statement	The statement where this stored program is parsed (optional).

Returns

Status of parsing

Return values

false	Success
true	Error

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

• include/mysql/components/services/language_service.h