MySQL 8.3.0
Source Code Documentation
abstract_string_option.h
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1/*
2 Copyright (c) 2014, 2023, Oracle and/or its affiliates.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License, version 2.0,
6 as published by the Free Software Foundation.
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8 This program is also distributed with certain software (including
9 but not limited to OpenSSL) that is licensed under separate terms,
10 as designated in a particular file or component or in included license
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13 separately licensed software that they have included with MySQL.
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16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License, version 2.0, for more details.
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22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23*/
24
25#ifndef ABSTRACT_STRING_OPTION_INCLUDED
26#define ABSTRACT_STRING_OPTION_INCLUDED
27
28#include <functional>
29#include <optional>
30#include <string>
31
33#include "my_getopt.h"
34
35namespace Mysql {
36namespace Tools {
37namespace Base {
38namespace Options {
39
40/**
41 Abstract option to handle options accepting string value argument.
42 */
43template <typename T_type>
45 public:
46 /**
47 Sets value for this option. If it is specified before handling commandline
48 options then supplied value is used as default value of this option.
49 */
50 T_type *set_value(std::string value);
51
52 protected:
53 /**
54 Constructs new string option.
55 @param value Pointer to string object to receive option value.
56 @param var_type my_getopt internal option type.
57 @param name Name of option. It is used in command line option name as
58 --name.
59 @param description Description of option to be printed in --help.
60 */
61 Abstract_string_option(std::optional<std::string> *value, ulong var_type,
62 std::string name, std::string description);
63
64 std::optional<std::string> *m_destination_value;
65
66 private:
67 void string_callback(char *argument);
68
69 const char *m_original_value;
70};
71
72template <typename T_type>
74 std::optional<std::string> *value, ulong var_type, std::string name,
75 std::string description)
76 : Abstract_value_option<T_type>(&this->m_original_value, var_type, name,
77 description, (uint64)NULL),
78 m_destination_value(value) {
79 *value = std::optional<std::string>();
80 this->m_original_value = nullptr;
81
82 this->add_callback(new std::function<void(char *)>(
84 std::placeholders::_1)));
85}
86
87template <typename T_type>
89 *this->m_destination_value = std::optional<std::string>(value);
90 this->m_original_value = this->m_destination_value->value().c_str();
91 this->m_option_structure.def_value =
92 (uint64)this->m_destination_value->value().c_str();
93 return (T_type *)this;
94}
95
96template <typename T_type>
98 if (argument != nullptr) {
99 // Copy argument value from char* to destination string.
100 *this->m_destination_value =
101 std::optional<std::string>(this->m_original_value);
102 } else {
103 // There is no argument supplied, we shouldn't change default value.
104 }
105}
106
107} // namespace Options
108} // namespace Base
109} // namespace Tools
110} // namespace Mysql
111
112#endif
void add_callback(std::function< void(char *)> *callback)
Adds new callback for this option for option_parsed() event to callback chain.
Definition: abstract_option.h:119
Abstract option to handle options accepting string value argument.
Definition: abstract_string_option.h:44
void string_callback(char *argument)
Definition: abstract_string_option.h:97
std::optional< std::string > * m_destination_value
Definition: abstract_string_option.h:64
const char * m_original_value
Definition: abstract_string_option.h:69
Abstract_string_option(std::optional< std::string > *value, ulong var_type, std::string name, std::string description)
Constructs new string option.
Definition: abstract_string_option.h:73
T_type * set_value(std::string value)
Sets value for this option.
Definition: abstract_string_option.h:88
Abstract option to handle options accepting value argument.
Definition: abstract_value_option.h:42
uint64_t uint64
Definition: my_inttypes.h:68
constexpr pos_type Options
Definition: http_request.h:260
Definition: abstract_connection_program.h:39
stdx::expected< void, error_type > bind(native_handle_type native_handle, const struct sockaddr *addr, size_t addr_len)
wrap bind() in a portable way.
Definition: socket.h:338
case opt name
Definition: sslopt-case.h:32
#define NULL
Definition: types.h:54