2 * Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; version 2.1 of
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 /* Internal UST API: ust-variant.h */
24 #include <lttng/ust-variant.h>
25 #include <lttng/ust-events.h>
30 static const struct lttng_enum_entry myentries
[NR_ENTRIES
] = {
34 .string
= "_mystring",
44 .string
= "_myuint16",
54 .string
= "_mylonglong",
58 static const struct lttng_enum_desc myenum_desc
= {
61 .nr_entries
= LTTNG_ARRAY_SIZE(myentries
),
64 const struct lttng_event_field myvarfields
[NR_ENTRIES
] = {
68 .atype
= atype_string
,
69 .u
.basic
.string
.encoding
= lttng_encode_UTF8
,
75 .type
= __type_integer(int32_t, BYTE_ORDER
, 10, none
),
80 .type
= __type_integer(uint16_t, BYTE_ORDER
, 10, none
),
85 .type
= __type_integer(char, BYTE_ORDER
, 10, none
),
90 .type
= __type_integer(long long, BYTE_ORDER
, 10, none
),
95 static const struct lttng_event_field
*get_field(const struct lttng_ust_type_variant
*variant
,
98 if (value
>= NR_ENTRIES
|| value
< 0)
100 return &myvarfields
[value
];
103 static int get_choices(const struct lttng_ust_type_variant
*variant
,
104 size_t *nr_choices
, const struct lttng_event_field
**choices
)
106 *nr_choices
= NR_ENTRIES
;
107 *choices
= myvarfields
;
111 static const struct lttng_event_field myfields
[];
113 static const struct lttng_ust_type_variant myvariant
= {
115 .get_field
= get_field
,
116 .get_choices
= get_choices
,
123 static void __event_probe__myprobe___myevent(void * __tp_data
)
127 static const struct lttng_event_field myfields
[] = {
130 .type
.atype
= atype_enum
,
131 .type
.u
.basic
.enumeration
.desc
= &myenum_desc
,
132 .type
.u
.basic
.enumeration
.container_type
= {
133 .size
= sizeof(char) * CHAR_BIT
,
134 .alignment
= lttng_alignof(char) * CHAR_BIT
,
135 .signedness
= lttng_is_signed_type(char),
136 .reverse_byte_order
= 0,
138 .encoding
= lttng_encode_none
,
145 .atype
= atype_variant
,
146 .u
.variant
= &myvariant
,
152 static const struct lttng_event_desc myevent_desc
= {
153 .name
= "myprobe:myevent",
154 .probe_callback
= (void (*)(void)) &__event_probe__myprobe___myevent
,
157 .nr_fields
= LTTNG_ARRAY_SIZE(myfields
),
159 .signature
= "mysig",
162 .model_emf_uri
= NULL
,
167 static const struct lttng_event_desc
*event_desc_array
[] = {
173 static struct lttng_probe_desc __probe_desc___myprobe
= {
174 .provider
= "myprobe",
175 .event_desc
= event_desc_array
,
176 .nr_events
= LTTNG_ARRAY_SIZE(event_desc_array
),
177 .head
= { NULL
, NULL
},
178 .lazy_init_head
= { NULL
, NULL
},
180 .major
= LTTNG_UST_PROVIDER_MAJOR
,
181 .minor
= LTTNG_UST_PROVIDER_MINOR
,
184 int main(int argc
, char **argv
)
188 ret
= lttng_probe_register(&__probe_desc___myprobe
);
192 lttng_probe_unregister(&__probe_desc___myprobe
);