1 /* 2 * Core Definitions for QAPI Visitor implementations 3 * 4 * Copyright (C) 2012-2016 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 /* Must be set. */ 40 void (*type_int64)(Visitor *v, int64_t *obj, const char *name, 41 Error **errp); 42 /* Must be set. */ 43 void (*type_uint64)(Visitor *v, uint64_t *obj, const char *name, 44 Error **errp); 45 /* Optional; fallback is type_uint64(). */ 46 void (*type_size)(Visitor *v, uint64_t *obj, const char *name, 47 Error **errp); 48 /* Must be set. */ 49 void (*type_bool)(Visitor *v, bool *obj, const char *name, Error **errp); 50 void (*type_str)(Visitor *v, char **obj, const char *name, Error **errp); 51 void (*type_number)(Visitor *v, double *obj, const char *name, 52 Error **errp); 53 void (*type_any)(Visitor *v, QObject **obj, const char *name, 54 Error **errp); 55 56 /* May be NULL; most useful for input visitors. */ 57 void (*optional)(Visitor *v, bool *present, const char *name); 58 59 bool (*start_union)(Visitor *v, bool data_present, Error **errp); 60 }; 61 62 void input_type_enum(Visitor *v, int *obj, const char * const strings[], 63 const char *kind, const char *name, Error **errp); 64 void output_type_enum(Visitor *v, int *obj, const char * const strings[], 65 const char *kind, const char *name, Error **errp); 66 67 #endif 68