1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
#ifndef OBJECT_INTERFACES_H
#define OBJECT_INTERFACES_H
#include "qom/object.h"
#include "qapi/visitor.h"
#define TYPE_USER_CREATABLE "user-creatable"
#define USER_CREATABLE_CLASS(klass) \
OBJECT_CLASS_CHECK(UserCreatableClass, (klass), \
TYPE_USER_CREATABLE)
#define USER_CREATABLE_GET_CLASS(obj) \
OBJECT_GET_CLASS(UserCreatableClass, (obj), \
TYPE_USER_CREATABLE)
#define USER_CREATABLE(obj) \
INTERFACE_CHECK(UserCreatable, (obj), \
TYPE_USER_CREATABLE)
typedef struct UserCreatable UserCreatable;
/**
* UserCreatableClass:
* @parent_class: the base class
* @complete: callback to be called after @obj's properties are set.
* @can_be_deleted: callback to be called before an object is removed
* to check if @obj can be removed safely.
*
* Interface is designed to work with -object/object-add/object_add
* commands.
* Interface is mandatory for objects that are designed to be user
* creatable (i.e. -object/object-add/object_add, will accept only
* objects that inherit this interface).
*
* Interface also provides an optional ability to do the second
* stage * initialization of the object after its properties were
* set.
*
* For objects created without using -object/object-add/object_add,
* @user_creatable_complete() wrapper should be called manually if
* object's type implements USER_CREATABLE interface and needs
* complete() callback to be called.
*/
typedef struct UserCreatableClass {
/* <private> */
InterfaceClass parent_class;
/* <public> */
void (*complete)(UserCreatable *uc, Error **errp);
bool (*can_be_deleted)(UserCreatable *uc);
} UserCreatableClass;
/**
* user_creatable_complete:
* @uc: the user-creatable object whose complete() method is called if defined
* @errp: if an error occurs, a pointer to an area to store the error
*
* Wrapper to call complete() method if one of types it's inherited
* from implements USER_CREATABLE interface, otherwise the call does
* nothing.
*/
void user_creatable_complete(UserCreatable *uc, Error **errp);
/**
* user_creatable_can_be_deleted:
* @uc: the object whose can_be_deleted() method is called if implemented
*
* Wrapper to call can_be_deleted() method if one of types it's inherited
* from implements USER_CREATABLE interface.
*/
bool user_creatable_can_be_deleted(UserCreatable *uc);
/**
* user_creatable_add_type:
* @type: the object type name
* @id: the unique ID for the object
* @qdict: the object properties
* @v: the visitor
* @errp: if an error occurs, a pointer to an area to store the error
*
* Create an instance of the user creatable object @type, placing
* it in the object composition tree with name @id, initializing
* it with properties from @qdict
*
* Returns: the newly created object or NULL on error
*/
Object *user_creatable_add_type(const char *type, const char *id,
const QDict *qdict,
Visitor *v, Error **errp);
/**
* user_creatable_add_dict:
* @qdict: the object definition
* @keyval: if true, use a keyval visitor for processing @qdict (i.e.
* assume that all @qdict values are strings); otherwise, use
* the normal QObject visitor (i.e. assume all @qdict values
* have the QType expected by the QOM object type)
* @errp: if an error occurs, a pointer to an area to store the error
*
* Create an instance of the user creatable object that is defined by
* @qdict. The object type is taken from the QDict key 'qom-type', its
* ID from the key 'id'. The remaining entries in @qdict are used to
* initialize the object properties.
*/
void user_creatable_add_dict(QDict *qdict, bool keyval, Error **errp);
/**
* user_creatable_add_opts:
* @opts: the object definition
* @errp: if an error occurs, a pointer to an area to store the error
*
* Create an instance of the user creatable object whose type
* is defined in @opts by the 'qom-type' option, placing it
* in the object composition tree with name provided by the
* 'id' field. The remaining options in @opts are used to
* initialize the object properties.
*
* Returns: the newly created object or NULL on error
*/
Object *user_creatable_add_opts(QemuOpts *opts, Error **errp);
/**
* user_creatable_add_opts_predicate:
* @type: the QOM type to be added
*
* A callback function to determine whether an object
* of type @type should be created. Instances of this
* callback should be passed to user_creatable_add_opts_foreach
*/
typedef bool (*user_creatable_add_opts_predicate)(const char *type);
/**
* user_creatable_add_opts_foreach:
* @opaque: a user_creatable_add_opts_predicate callback or NULL
* @opts: options to create
* @errp: unused
*
* An iterator callback to be used in conjunction with
* the qemu_opts_foreach() method for creating a list of
* objects from a set of QemuOpts
*
* The @opaque parameter can be passed a user_creatable_add_opts_predicate
* callback to filter which types of object are created during iteration.
* When it fails, report the error.
*
* Returns: 0 on success, -1 when an error was reported.
*/
int user_creatable_add_opts_foreach(void *opaque,
QemuOpts *opts, Error **errp);
/**
* user_creatable_print_help:
* @type: the QOM type to be added
* @opts: options to create
*
* Prints help if requested in @opts.
*
* Returns: true if @opts contained a help option and help was printed, false
* if no help option was found.
*/
bool user_creatable_print_help(const char *type, QemuOpts *opts);
/**
* user_creatable_del:
* @id: the unique ID for the object
* @errp: if an error occurs, a pointer to an area to store the error
*
* Delete an instance of the user creatable object identified
* by @id.
*/
void user_creatable_del(const char *id, Error **errp);
/**
* user_creatable_cleanup:
*
* Delete all user-creatable objects and the user-creatable
* objects container.
*/
void user_creatable_cleanup(void);
/**
* qmp_object_add:
*
* QMP command handler for object-add. See the QAPI schema for documentation.
*/
void qmp_object_add(QDict *qdict, QObject **ret_data, Error **errp);
#endif
|
