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/*
* Core Definitions for QAPI Visitor implementations
*
* Copyright (C) 2012-2016 Red Hat, Inc.
*
* Author: Paolo Bonizni <pbonzini@redhat.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#ifndef QAPI_VISITOR_IMPL_H
#define QAPI_VISITOR_IMPL_H
#include "qapi/visitor.h"
/*
* There are three classes of visitors; setting the class determines
* how QAPI enums are visited, as well as what additional restrictions
* can be asserted.
*/
typedef enum VisitorType {
VISITOR_INPUT,
VISITOR_OUTPUT,
VISITOR_DEALLOC,
} VisitorType;
struct Visitor
{
/* Must be set */
void (*start_struct)(Visitor *v, const char *name, void **obj,
size_t size, Error **errp);
void (*end_struct)(Visitor *v, Error **errp);
void (*start_list)(Visitor *v, const char *name, Error **errp);
/* Must be set */
GenericList *(*next_list)(Visitor *v, GenericList **list, size_t size);
/* Must be set */
void (*end_list)(Visitor *v);
/* Optional, needed for input and dealloc visitors. */
void (*start_alternate)(Visitor *v, const char *name,
GenericAlternate **obj, size_t size,
bool promote_int, Error **errp);
/* Optional, needed for dealloc visitor. */
void (*end_alternate)(Visitor *v);
/* Must be set. */
void (*type_int64)(Visitor *v, const char *name, int64_t *obj,
Error **errp);
/* Must be set. */
void (*type_uint64)(Visitor *v, const char *name, uint64_t *obj,
Error **errp);
/* Optional; fallback is type_uint64(). */
void (*type_size)(Visitor *v, const char *name, uint64_t *obj,
Error **errp);
/* Must be set. */
void (*type_bool)(Visitor *v, const char *name, bool *obj, Error **errp);
void (*type_str)(Visitor *v, const char *name, char **obj, Error **errp);
void (*type_number)(Visitor *v, const char *name, double *obj,
Error **errp);
void (*type_any)(Visitor *v, const char *name, QObject **obj,
Error **errp);
/* May be NULL; most useful for input visitors. */
void (*optional)(Visitor *v, const char *name, bool *present);
/* Must be set */
VisitorType type;
};
#endif
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