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 "qemu/queue.h"
  18 #include "qemu-common.h"
  19 #include "qapi/visitor-impl.h"
  20
  21 struct QapiDeallocVisitor
  22 {
  23     Visitor visitor;
  24 };
  25
  26 static void qapi_dealloc_start_struct(Visitor *v, const char *name, void **obj,
  27                                       size_t unused, Error **errp)
  28 {
  29 }
  30
  31 static void qapi_dealloc_end_struct(Visitor *v, void **obj)
  32 {
  33     if (obj) {
  34         g_free(*obj);
  35     }
  36 }
  37
  38 static void qapi_dealloc_start_alternate(Visitor *v, const char *name,
  39                                          GenericAlternate **obj, size_t size,
  40                                          Error **errp)
  41 {
  42 }
  43
  44 static void qapi_dealloc_end_alternate(Visitor *v, void **obj)
  45 {
  46     if (obj) {
  47         g_free(*obj);
  48     }
  49 }
  50
  51 static void qapi_dealloc_start_list(Visitor *v, const char *name,
  52                                     GenericList **list, size_t size,
  53                                     Error **errp)
  54 {
  55 }
  56
  57 static GenericList *qapi_dealloc_next_list(Visitor *v, GenericList *tail,
  58                                            size_t size)
  59 {
  60     GenericList *next = tail->next;
  61     g_free(tail);
  62     return next;
  63 }
  64
  65 static void qapi_dealloc_end_list(Visitor *v, void **obj)
  66 {
  67 }
  68
  69 static void qapi_dealloc_type_str(Visitor *v, const char *name, char **obj,
  70                                   Error **errp)
  71 {
  72     if (obj) {
  73         g_free(*obj);
  74     }
  75 }
  76
  77 static void qapi_dealloc_type_int64(Visitor *v, const char *name, int64_t *obj,
  78                                     Error **errp)
  79 {
  80 }
  81
  82 static void qapi_dealloc_type_uint64(Visitor *v, const char *name,
  83                                      uint64_t *obj, Error **errp)
  84 {
  85 }
  86
  87 static void qapi_dealloc_type_bool(Visitor *v, const char *name, bool *obj,
  88                                    Error **errp)
  89 {
  90 }
  91
  92 static void qapi_dealloc_type_number(Visitor *v, const char *name, double *obj,
  93                                      Error **errp)
  94 {
  95 }
  96
  97 static void qapi_dealloc_type_anything(Visitor *v, const char *name,
  98                                        QObject **obj, Error **errp)
  99 {
 100     if (obj) {
 101         qobject_decref(*obj);
 102     }
 103 }
 104
 105 static void qapi_dealloc_type_null(Visitor *v, const char *name,
 106                                    QNull **obj, Error **errp)
 107 {
 108     if (obj) {
 109         QDECREF(*obj);
 110     }
 111 }
 112
 113 static void qapi_dealloc_free(Visitor *v)
 114 {
 115     g_free(container_of(v, QapiDeallocVisitor, visitor));
 116 }
 117
 118 Visitor *qapi_dealloc_visitor_new(void)
 119 {
 120     QapiDeallocVisitor *v;
 121
 122     v = g_malloc0(sizeof(*v));
 123
 124     v->visitor.type = VISITOR_DEALLOC;
 125     v->visitor.start_struct = qapi_dealloc_start_struct;
 126     v->visitor.end_struct = qapi_dealloc_end_struct;
 127     v->visitor.start_alternate = qapi_dealloc_start_alternate;
 128     v->visitor.end_alternate = qapi_dealloc_end_alternate;
 129     v->visitor.start_list = qapi_dealloc_start_list;
 130     v->visitor.next_list = qapi_dealloc_next_list;
 131     v->visitor.end_list = qapi_dealloc_end_list;
 132     v->visitor.type_int64 = qapi_dealloc_type_int64;
 133     v->visitor.type_uint64 = qapi_dealloc_type_uint64;
 134     v->visitor.type_bool = qapi_dealloc_type_bool;
 135     v->visitor.type_str = qapi_dealloc_type_str;
 136     v->visitor.type_number = qapi_dealloc_type_number;
 137     v->visitor.type_any = qapi_dealloc_type_anything;
 138     v->visitor.type_null = qapi_dealloc_type_null;
 139     v->visitor.free = qapi_dealloc_free;
 140
 141     return &v->visitor;
 142 }