include/qapi/visitor-impl.h

   1 /*
   2  * Core Definitions for QAPI Visitor implementations
   3  *
   4  * Copyright (C) 2012 Red Hat, Inc.
   5  *
   6  * Author: Paolo Bonizni <pbonzini@redhat.com>
   7  *
   8  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
   9  * See the COPYING.LIB file in the top-level directory.
  10  *
  11  */
  12 #ifndef QAPI_VISITOR_IMPL_H
  13 #define QAPI_VISITOR_IMPL_H
  14
  15 #include "qapi/error.h"
  16 #include "qapi/visitor.h"
  17
  18 struct Visitor
  19 {
  20     /* Must be set */
  21     void (*start_struct)(Visitor *v, void **obj, const char *kind,
  22                          const char *name, size_t size, Error **errp);
  23     void (*end_struct)(Visitor *v, Error **errp);
  24
  25     void (*start_implicit_struct)(Visitor *v, void **obj, size_t size,
  26                                   Error **errp);
  27     void (*end_implicit_struct)(Visitor *v, Error **errp);
  28
  29     void (*start_list)(Visitor *v, const char *name, Error **errp);
  30     GenericList *(*next_list)(Visitor *v, GenericList **list, Error **errp);
  31     void (*end_list)(Visitor *v, Error **errp);
  32
  33     void (*type_enum)(Visitor *v, int *obj, const char * const strings[],
  34                       const char *kind, const char *name, Error **errp);
  35     /* May be NULL; only needed for input visitors. */
  36     void (*get_next_type)(Visitor *v, QType *type, bool promote_int,
  37                           const char *name, Error **errp);
  38
  39     void (*type_int)(Visitor *v, int64_t *obj, const char *name, Error **errp);
  40     void (*type_bool)(Visitor *v, bool *obj, const char *name, Error **errp);
  41     void (*type_str)(Visitor *v, char **obj, const char *name, Error **errp);
  42     void (*type_number)(Visitor *v, double *obj, const char *name,
  43                         Error **errp);
  44     void (*type_any)(Visitor *v, QObject **obj, const char *name,
  45                      Error **errp);
  46
  47     /* May be NULL; most useful for input visitors. */
  48     void (*optional)(Visitor *v, bool *present, const char *name);
  49
  50     void (*type_uint8)(Visitor *v, uint8_t *obj, const char *name, Error **errp);
  51     void (*type_uint16)(Visitor *v, uint16_t *obj, const char *name, Error **errp);
  52     void (*type_uint32)(Visitor *v, uint32_t *obj, const char *name, Error **errp);
  53     void (*type_uint64)(Visitor *v, uint64_t *obj, const char *name, Error **errp);
  54     void (*type_int8)(Visitor *v, int8_t *obj, const char *name, Error **errp);
  55     void (*type_int16)(Visitor *v, int16_t *obj, const char *name, Error **errp);
  56     void (*type_int32)(Visitor *v, int32_t *obj, const char *name, Error **errp);
  57     void (*type_int64)(Visitor *v, int64_t *obj, const char *name, Error **errp);
  58     /* visit_type_size() falls back to (*type_uint64)() if type_size is unset */
  59     void (*type_size)(Visitor *v, uint64_t *obj, const char *name, Error **errp);
  60     bool (*start_union)(Visitor *v, bool data_present, Error **errp);
  61 };
  62
  63 void input_type_enum(Visitor *v, int *obj, const char * const strings[],
  64                      const char *kind, const char *name, Error **errp);
  65 void output_type_enum(Visitor *v, int *obj, const char * const strings[],
  66                       const char *kind, const char *name, Error **errp);
  67
  68 #endif