MySQL 8.2.0
Source Code Documentation
system_variable_source.h
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1/* Copyright (c) 2017, 2023, Oracle and/or its affiliates.
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22
23#ifndef SYSTEM_VARIABLE_SOURCE_H
24#define SYSTEM_VARIABLE_SOURCE_H
25
28
29/**
30 A service to deal with source of system variable. A system variable
31 could be set from different sources for eg: Command line, Configuration
32 file etc. This service exposes method to get the source information of
33 a given system variable.
34*/
35BEGIN_SERVICE_DEFINITION(system_variable_source)
36
37/**
38 Get source information of given system variable.
39
40 @param [in] name Name of system variable in system charset
41 @param [in] length Name length of system variable
42 @param [out] source Source of system variable
43 @return Status of performance operation
44 @retval false Success
45 @retval true Failure
46*/
47
48DECLARE_BOOL_METHOD(get, (const char *name, unsigned int length,
50
51END_SERVICE_DEFINITION(system_variable_source)
52
53#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:75
void get(PSI_field *, PSI_longlong *) noexcept
Definition: pfs_plugin_column_bigint_v1_all_empty.cc:31
repeated Source source
Definition: replication_asynchronous_connection_failover.proto:41
#define END_SERVICE_DEFINITION(name)
A macro to end the last Service definition started with the BEGIN_SERVICE_DEFINITION macro.
Definition: service.h:90
#define BEGIN_SERVICE_DEFINITION(name)
Declares a new Service.
Definition: service.h:85
#define DECLARE_BOOL_METHOD(name, args)
Declares a method that returns bool as a part of the Service definition.
Definition: service.h:111
case opt name
Definition: sslopt-case.h:32
enum_variable_source
This enum values define how system variables are set.
Definition: system_variable_source_type.h:32