MySQL 9.1.0
Source Code Documentation
system_variable_source.h
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1/* Copyright (c) 2017, 2024, Oracle and/or its affiliates.
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23
24#ifndef SYSTEM_VARIABLE_SOURCE_H
25#define SYSTEM_VARIABLE_SOURCE_H
26
29
30/**
31 A service to deal with source of system variable. A system variable
32 could be set from different sources for eg: Command line, Configuration
33 file etc. This service exposes method to get the source information of
34 a given system variable.
35*/
36BEGIN_SERVICE_DEFINITION(system_variable_source)
37
38/**
39 Get source information of given system variable.
40
41 @param [in] name Name of system variable in system charset
42 @param [in] length Name length of system variable
43 @param [out] source Source of system variable
44 @return Status of performance operation
45 @retval false Success
46 @retval true Failure
47*/
48
49DECLARE_BOOL_METHOD(get, (const char *name, unsigned int length,
51
52END_SERVICE_DEFINITION(system_variable_source)
53
54#endif /* SYSTEM_VARIABLE_SOURCE_H */
bool length(const dd::Spatial_reference_system *srs, const Geometry *g1, double *length, bool *null) noexcept
Computes the length of linestrings and multilinestrings.
Definition: length.cc:76
static mysql_service_status_t get(THD **thd) noexcept
Definition: mysql_current_thread_reader_all_empty.cc:31
repeated Source source
Definition: replication_asynchronous_connection_failover.proto:42
#define END_SERVICE_DEFINITION(name)
A macro to end the last Service definition started with the BEGIN_SERVICE_DEFINITION macro.
Definition: service.h:91
#define BEGIN_SERVICE_DEFINITION(name)
Declares a new Service.
Definition: service.h:86
#define DECLARE_BOOL_METHOD(name, args)
Declares a method that returns bool as a part of the Service definition.
Definition: service.h:112
case opt name
Definition: sslopt-case.h:29
enum_variable_source
This enum values define how system variables are set.
Definition: system_variable_source_type.h:33