qapi/qapi-dealloc-visitor.c

   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 "qapi/visitor-impl.h"
  19
  20 struct QapiDeallocVisitor
  21 {
  22     Visitor visitor;
  23 };
  24
  25 static void qapi_dealloc_start_struct(Visitor *v, const char *name, void **obj,
  26                                       size_t unused, Error **errp)
  27 {
  28 }
  29
  30 static void qapi_dealloc_end_struct(Visitor *v, void **obj)
  31 {
  32     if (obj) {
  33         g_free(*obj);
  34     }
  35 }
  36
  37 static void qapi_dealloc_start_alternate(Visitor *v, const char *name,
  38                                          GenericAlternate **obj, size_t size,
  39                                          Error **errp)
  40 {
  41 }
  42
  43 static void qapi_dealloc_end_alternate(Visitor *v, void **obj)
  44 {
  45     if (obj) {
  46         g_free(*obj);
  47     }
  48 }
  49
  50 static void qapi_dealloc_start_list(Visitor *v, const char *name,
  51                                     GenericList **list, size_t size,
  52                                     Error **errp)
  53 {
  54 }
  55
  56 static GenericList *qapi_dealloc_next_list(Visitor *v, GenericList *tail,
  57                                            size_t size)
  58 {
  59     GenericList *next = tail->next;
  60     g_free(tail);
  61     return next;
  62 }
  63
  64 static void qapi_dealloc_end_list(Visitor *v, void **obj)
  65 {
  66 }
  67
  68 static void qapi_dealloc_type_str(Visitor *v, const char *name, char **obj,
  69                                   Error **errp)
  70 {
  71     if (obj) {
  72         g_free(*obj);
  73     }
  74 }
  75
  76 static void qapi_dealloc_type_int64(Visitor *v, const char *name, int64_t *obj,
  77                                     Error **errp)
  78 {
  79 }
  80
  81 static void qapi_dealloc_type_uint64(Visitor *v, const char *name,
  82                                      uint64_t *obj, Error **errp)
  83 {
  84 }
  85
  86 static void qapi_dealloc_type_bool(Visitor *v, const char *name, bool *obj,
  87                                    Error **errp)
  88 {
  89 }
  90
  91 static void qapi_dealloc_type_number(Visitor *v, const char *name, double *obj,
  92                                      Error **errp)
  93 {
  94 }
  95
  96 static void qapi_dealloc_type_anything(Visitor *v, const char *name,
  97                                        QObject **obj, Error **errp)
  98 {
  99     if (obj) {
 100         qobject_unref(*obj);
 101     }
 102 }
 103
 104 static void qapi_dealloc_type_null(Visitor *v, const char *name,
 105                                    QNull **obj, Error **errp)
 106 {
 107     if (obj) {
 108         qobject_unref(*obj);
 109     }
 110 }
 111
 112 static void qapi_dealloc_free(Visitor *v)
 113 {
 114     g_free(container_of(v, QapiDeallocVisitor, visitor));
 115 }
 116
 117 Visitor *qapi_dealloc_visitor_new(void)
 118 {
 119     QapiDeallocVisitor *v;
 120
 121     v = g_malloc0(sizeof(*v));
 122
 123     v->visitor.type = VISITOR_DEALLOC;
 124     v->visitor.start_struct = qapi_dealloc_start_struct;
 125     v->visitor.end_struct = qapi_dealloc_end_struct;
 126     v->visitor.start_alternate = qapi_dealloc_start_alternate;
 127     v->visitor.end_alternate = qapi_dealloc_end_alternate;
 128     v->visitor.start_list = qapi_dealloc_start_list;
 129     v->visitor.next_list = qapi_dealloc_next_list;
 130     v->visitor.end_list = qapi_dealloc_end_list;
 131     v->visitor.type_int64 = qapi_dealloc_type_int64;
 132     v->visitor.type_uint64 = qapi_dealloc_type_uint64;
 133     v->visitor.type_bool = qapi_dealloc_type_bool;
 134     v->visitor.type_str = qapi_dealloc_type_str;
 135     v->visitor.type_number = qapi_dealloc_type_number;
 136     v->visitor.type_any = qapi_dealloc_type_anything;
 137     v->visitor.type_null = qapi_dealloc_type_null;
 138     v->visitor.free = qapi_dealloc_free;
 139
 140     return &v->visitor;
 141 }