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 "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_decref(*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         QDECREF(*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 }