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