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qapi: Change data type of the FOO_lookup generated for enum FOO

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Currently, a FOO_lookup is an array of strings terminated by a NULL
sentinel.

A future patch will generate enums with "holes".  NULL-termination
will cease to work then.

To prepare for that, store the length in the FOO_lookup by wrapping it
in a struct and adding a member for the length.

The sentinel will be dropped next.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170822132255.23945-13-marcandre.lureau@redhat.com>
[Basically redone]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1503564371-26090-16-git-send-email-armbru@redhat.com>
[Rebased]
This commit is contained in:
Marc-André Lureau 2017-08-24 10:46:10 +02:00 • committed by Markus Armbruster
parent 788b305c91
commit f7abe0ecd4
33 changed files with 106 additions and 89 deletions
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9
include/qapi/util.h
View file

@ -11,8 +11,13 @@
#ifndef QAPI_UTIL_H
#define QAPI_UTIL_H
const char *qapi_enum_lookup(const char *const lookup[], int val);
int qapi_enum_parse(const char * const lookup[], const char *buf,
typedef struct QEnumLookup {
const char *const *array;
int size;
} QEnumLookup;
const char *qapi_enum_lookup(const QEnumLookup *lookup, int val);
int qapi_enum_parse(const QEnumLookup *lookup, const char *buf,
int def, Error **errp);
int parse_qapi_name(const char *name, bool complete);

2
include/qapi/visitor.h
View file

@ -469,7 +469,7 @@ bool visit_optional(Visitor *v, const char *name, bool *present);
* that visit_type_str() must have no unwelcome side effects.
*/
void visit_type_enum(Visitor *v, const char *name, int *obj,
const char *const strings[], Error **errp);
const QEnumLookup *lookup, Error **errp);
/*
* Check if visitor is an input visitor.