xref: /openbmc/qemu/qapi/qapi-dealloc-visitor.c (revision 438c78da)
1 /*
2  * Dealloc Visitor
3  *
4  * Copyright (C) 2012-2016 Red Hat, Inc.
5  * Copyright IBM, Corp. 2011
6  *
7  * Authors:
8  *  Michael Roth   <mdroth@linux.vnet.ibm.com>
9  *
10  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
11  * See the COPYING.LIB file in the top-level directory.
12  *
13  */
14 
15 #include "qemu/osdep.h"
16 #include "qapi/dealloc-visitor.h"
17 #include "qapi/qmp/qnull.h"
18 #include "qemu/queue.h"
19 #include "qemu-common.h"
20 #include "qapi/visitor-impl.h"
21 
22 struct QapiDeallocVisitor
23 {
24     Visitor visitor;
25 };
26 
27 static void qapi_dealloc_start_struct(Visitor *v, const char *name, void **obj,
28                                       size_t unused, Error **errp)
29 {
30 }
31 
32 static void qapi_dealloc_end_struct(Visitor *v, void **obj)
33 {
34     if (obj) {
35         g_free(*obj);
36     }
37 }
38 
39 static void qapi_dealloc_start_alternate(Visitor *v, const char *name,
40                                          GenericAlternate **obj, size_t size,
41                                          Error **errp)
42 {
43 }
44 
45 static void qapi_dealloc_end_alternate(Visitor *v, void **obj)
46 {
47     if (obj) {
48         g_free(*obj);
49     }
50 }
51 
52 static void qapi_dealloc_start_list(Visitor *v, const char *name,
53                                     GenericList **list, size_t size,
54                                     Error **errp)
55 {
56 }
57 
58 static GenericList *qapi_dealloc_next_list(Visitor *v, GenericList *tail,
59                                            size_t size)
60 {
61     GenericList *next = tail->next;
62     g_free(tail);
63     return next;
64 }
65 
66 static void qapi_dealloc_end_list(Visitor *v, void **obj)
67 {
68 }
69 
70 static void qapi_dealloc_type_str(Visitor *v, const char *name, char **obj,
71                                   Error **errp)
72 {
73     if (obj) {
74         g_free(*obj);
75     }
76 }
77 
78 static void qapi_dealloc_type_int64(Visitor *v, const char *name, int64_t *obj,
79                                     Error **errp)
80 {
81 }
82 
83 static void qapi_dealloc_type_uint64(Visitor *v, const char *name,
84                                      uint64_t *obj, Error **errp)
85 {
86 }
87 
88 static void qapi_dealloc_type_bool(Visitor *v, const char *name, bool *obj,
89                                    Error **errp)
90 {
91 }
92 
93 static void qapi_dealloc_type_number(Visitor *v, const char *name, double *obj,
94                                      Error **errp)
95 {
96 }
97 
98 static void qapi_dealloc_type_anything(Visitor *v, const char *name,
99                                        QObject **obj, Error **errp)
100 {
101     if (obj) {
102         qobject_unref(*obj);
103     }
104 }
105 
106 static void qapi_dealloc_type_null(Visitor *v, const char *name,
107                                    QNull **obj, Error **errp)
108 {
109     if (obj) {
110         qobject_unref(*obj);
111     }
112 }
113 
114 static void qapi_dealloc_free(Visitor *v)
115 {
116     g_free(container_of(v, QapiDeallocVisitor, visitor));
117 }
118 
119 Visitor *qapi_dealloc_visitor_new(void)
120 {
121     QapiDeallocVisitor *v;
122 
123     v = g_malloc0(sizeof(*v));
124 
125     v->visitor.type = VISITOR_DEALLOC;
126     v->visitor.start_struct = qapi_dealloc_start_struct;
127     v->visitor.end_struct = qapi_dealloc_end_struct;
128     v->visitor.start_alternate = qapi_dealloc_start_alternate;
129     v->visitor.end_alternate = qapi_dealloc_end_alternate;
130     v->visitor.start_list = qapi_dealloc_start_list;
131     v->visitor.next_list = qapi_dealloc_next_list;
132     v->visitor.end_list = qapi_dealloc_end_list;
133     v->visitor.type_int64 = qapi_dealloc_type_int64;
134     v->visitor.type_uint64 = qapi_dealloc_type_uint64;
135     v->visitor.type_bool = qapi_dealloc_type_bool;
136     v->visitor.type_str = qapi_dealloc_type_str;
137     v->visitor.type_number = qapi_dealloc_type_number;
138     v->visitor.type_any = qapi_dealloc_type_anything;
139     v->visitor.type_null = qapi_dealloc_type_null;
140     v->visitor.free = qapi_dealloc_free;
141 
142     return &v->visitor;
143 }
144