unicorn/qemu/include/qapi/visitor.h
Eric Blake 3aba81d5aa
qapi: Drop unused error argument for list and implicit struct
No backend was setting an error when ending the visit of a list or
implicit struct, or when moving to the next list node. Make the
callers a bit easier to follow by making this a part of the contract,
and removing the errp argument - callers can then unconditionally end
an object as part of cleanup without having to think about whether a
second error is dominated by a first, because there is no second
error.

A later patch will then tackle the larger task of splitting
visit_end_struct(), which can indeed set an error.

Backports commit 08f9541dec51700abef0c37994213164ca4e4fc9 from qemu
2018-02-19 12:59:54 -05:00

65 lines
2.8 KiB
C

/*
* 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 "qemu/typedefs.h"
#include "qapi/qmp/qobject.h"
#include "qapi/error.h"
#include <stdlib.h>
typedef struct GenericList
{
union {
void *value;
uint64_t padding;
};
struct GenericList *next;
} GenericList;
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_implicit_struct(Visitor *v, void **obj, size_t size,
Error **errp);
void visit_end_implicit_struct(Visitor *v);
void visit_start_list(Visitor *v, const char *name, Error **errp);
GenericList *visit_next_list(Visitor *v, GenericList **list);
void visit_end_list(Visitor *v);
void visit_optional(Visitor *v, bool *present, const char *name,
Error **errp);
void visit_get_next_type(Visitor *v, int *obj, const int *qtypes,
const char *name, 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_uint8(Visitor *v, uint8_t *obj, const char *name, Error **errp);
void visit_type_uint16(Visitor *v, uint16_t *obj, const char *name, Error **errp);
void visit_type_uint32(Visitor *v, uint32_t *obj, const char *name, Error **errp);
void visit_type_uint64(Visitor *v, uint64_t *obj, const char *name, Error **errp);
void visit_type_int8(Visitor *v, int8_t *obj, const char *name, Error **errp);
void visit_type_int16(Visitor *v, int16_t *obj, const char *name, Error **errp);
void visit_type_int32(Visitor *v, int32_t *obj, const char *name, Error **errp);
void visit_type_int64(Visitor *v, int64_t *obj, const char *name, Error **errp);
void visit_type_size(Visitor *v, uint64_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);
bool visit_start_union(Visitor *v, bool data_present, Error **errp);
void visit_end_union(Visitor *v, bool data_present, Error **errp);
#endif