Merge remote-tracking branch 'remotes/philmd/tags/memory-api-20220118' into staging
[qemu.git] / include / qapi / util.h
1 /*
2 * QAPI util functions
3 *
4 * Copyright Fujitsu, Inc. 2014
5 *
6 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
7 * See the COPYING.LIB file in the top-level directory.
8 *
9 */
10
11 #ifndef QAPI_UTIL_H
12 #define QAPI_UTIL_H
13
14 typedef enum {
15 QAPI_DEPRECATED,
16 QAPI_UNSTABLE,
17 } QapiSpecialFeature;
18
19 typedef struct QEnumLookup {
20 const char *const *array;
21 const unsigned char *const special_features;
22 const int size;
23 } QEnumLookup;
24
25 const char *qapi_enum_lookup(const QEnumLookup *lookup, int val);
26 int qapi_enum_parse(const QEnumLookup *lookup, const char *buf,
27 int def, Error **errp);
28 bool qapi_bool_parse(const char *name, const char *value, bool *obj,
29 Error **errp);
30
31 int parse_qapi_name(const char *name, bool complete);
32
33 /*
34 * For any GenericList @list, insert @element at the front.
35 *
36 * Note that this macro evaluates @element exactly once, so it is safe
37 * to have side-effects with that argument.
38 */
39 #define QAPI_LIST_PREPEND(list, element) do { \
40 typeof(list) _tmp = g_malloc(sizeof(*(list))); \
41 _tmp->value = (element); \
42 _tmp->next = (list); \
43 (list) = _tmp; \
44 } while (0)
45
46 /*
47 * For any pointer to a GenericList @tail (usually the 'next' member of a
48 * list element), insert @element at the back and update the tail.
49 *
50 * Note that this macro evaluates @element exactly once, so it is safe
51 * to have side-effects with that argument.
52 */
53 #define QAPI_LIST_APPEND(tail, element) do { \
54 *(tail) = g_malloc0(sizeof(**(tail))); \
55 (*(tail))->value = (element); \
56 (tail) = &(*(tail))->next; \
57 } while (0)
58
59 #endif