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qapi: add QAPI visitor core

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Base definitions/includes for Visiter interface used by generated
visiter/marshalling code.

Includes a GenericList type. Our lists require an embedded element.
Since these types are generated, if you want to use them in a different
type of data structure, there's no easy way to add another embedded
element. The solution is to have non-embedded lists and that what this is.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@gmail.com>
This commit is contained in:
Michael Roth 2011-07-19 14:50:32 -05:00 • committed by Luiz Capitulino
parent c7aa841e9f
commit 2345c77c6d
5 changed files with 221 additions and 0 deletions
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76
qapi/qapi-visit-core.h Normal file
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/*
* Core Definitions for QAPI Visitor Classes
*
* Copyright IBM, Corp. 2011
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.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_CORE_H
#define QAPI_VISITOR_CORE_H
#include "qapi/qapi-types-core.h"
#include <stdlib.h>
typedef struct GenericList
{
void *value;
struct GenericList *next;
} GenericList;
typedef struct Visitor Visitor;
struct Visitor
{
/* Must be set */
void (*start_struct)(Visitor *v, void **obj, const char *kind,
const char *name, size_t size, Error **errp);
void (*end_struct)(Visitor *v, Error **errp);
void (*start_list)(Visitor *v, const char *name, Error **errp);
GenericList *(*next_list)(Visitor *v, GenericList **list, Error **errp);
void (*end_list)(Visitor *v, Error **errp);
void (*type_enum)(Visitor *v, int *obj, const char *strings[],
const char *kind, const char *name, Error **errp);
void (*type_int)(Visitor *v, int64_t *obj, const char *name, Error **errp);
void (*type_bool)(Visitor *v, bool *obj, const char *name, Error **errp);
void (*type_str)(Visitor *v, char **obj, const char *name, Error **errp);
void (*type_number)(Visitor *v, double *obj, const char *name,
Error **errp);
/* May be NULL */
void (*start_optional)(Visitor *v, bool *present, const char *name,
Error **errp);
void (*end_optional)(Visitor *v, Error **errp);
void (*start_handle)(Visitor *v, void **obj, const char *kind,
const char *name, Error **errp);
void (*end_handle)(Visitor *v, Error **errp);
};
void visit_start_handle(Visitor *v, void **obj, const char *kind,
const char *name, Error **errp);
void visit_end_handle(Visitor *v, Error **errp);
void visit_start_struct(Visitor *v, void **obj, const char *kind,
const char *name, size_t size, Error **errp);
void visit_end_struct(Visitor *v, Error **errp);
void visit_start_list(Visitor *v, const char *name, Error **errp);
GenericList *visit_next_list(Visitor *v, GenericList **list, Error **errp);
void visit_end_list(Visitor *v, Error **errp);
void visit_start_optional(Visitor *v, bool *present, const char *name,
Error **errp);
void visit_end_optional(Visitor *v, Error **errp);
void visit_type_enum(Visitor *v, int *obj, const char *strings[],
const char *kind, const char *name, Error **errp);
void visit_type_int(Visitor *v, int64_t *obj, const char *name, Error **errp);
void visit_type_bool(Visitor *v, bool *obj, const char *name, Error **errp);
void visit_type_str(Visitor *v, char **obj, const char *name, Error **errp);
void visit_type_number(Visitor *v, double *obj, const char *name, Error **errp);
#endif