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53569322 MD |
1 | /* |
2 | * lttng-ust-dynamic-type.c | |
3 | * | |
4 | * UST dynamic type implementation. | |
5 | * | |
6 | * Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
7 | * | |
8 | * This library is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; only | |
11 | * version 2.1 of the License. | |
12 | * | |
13 | * This library is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with this library; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #define _GNU_SOURCE | |
3fbec7dc | 24 | #define _LGPL_SOURCE |
53569322 MD |
25 | #include <stdio.h> |
26 | #include <stdint.h> | |
27 | #include <stddef.h> | |
28 | #include <inttypes.h> | |
29 | ||
30 | #include <helper.h> | |
31 | #include <lttng/ust-dynamic-type.h> | |
32 | ||
a6f80644 MD |
33 | #define ctf_enum_value(_string, _value) \ |
34 | { \ | |
35 | .start = { \ | |
36 | .signedness = lttng_is_signed_type(__typeof__(_value)), \ | |
37 | .value = lttng_is_signed_type(__typeof__(_value)) ? \ | |
38 | (long long) (_value) : (_value), \ | |
39 | }, \ | |
40 | .end = { \ | |
41 | .signedness = lttng_is_signed_type(__typeof__(_value)), \ | |
42 | .value = lttng_is_signed_type(__typeof__(_value)) ? \ | |
43 | (long long) (_value) : (_value), \ | |
44 | }, \ | |
45 | .string = (_string), \ | |
53569322 | 46 | }, |
a6f80644 MD |
47 | |
48 | static const struct lttng_enum_entry dt_enum[_NR_LTTNG_UST_DYNAMIC_TYPES] = { | |
49 | [LTTNG_UST_DYNAMIC_TYPE_NONE] = ctf_enum_value("_none", 0) | |
50 | [LTTNG_UST_DYNAMIC_TYPE_S8] = ctf_enum_value("_int8", 1) | |
51 | [LTTNG_UST_DYNAMIC_TYPE_S16] = ctf_enum_value("_int16", 2) | |
52 | [LTTNG_UST_DYNAMIC_TYPE_S32] = ctf_enum_value("_int32", 3) | |
53 | [LTTNG_UST_DYNAMIC_TYPE_S64] = ctf_enum_value("_int64", 4) | |
54 | [LTTNG_UST_DYNAMIC_TYPE_U8] = ctf_enum_value("_uint8", 5) | |
55 | [LTTNG_UST_DYNAMIC_TYPE_U16] = ctf_enum_value("_uint16", 6) | |
56 | [LTTNG_UST_DYNAMIC_TYPE_U32] = ctf_enum_value("_uint32", 7) | |
57 | [LTTNG_UST_DYNAMIC_TYPE_U64] = ctf_enum_value("_uint64", 8) | |
58 | [LTTNG_UST_DYNAMIC_TYPE_FLOAT] = ctf_enum_value("_float", 9) | |
59 | [LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = ctf_enum_value("_double", 10) | |
60 | [LTTNG_UST_DYNAMIC_TYPE_STRING] = ctf_enum_value("_string", 11) | |
53569322 MD |
61 | }; |
62 | ||
63 | static const struct lttng_enum_desc dt_enum_desc = { | |
64 | .name = "dynamic_type_enum", | |
65 | .entries = dt_enum, | |
66 | .nr_entries = LTTNG_ARRAY_SIZE(dt_enum), | |
67 | }; | |
68 | ||
69 | const struct lttng_event_field dt_var_fields[_NR_LTTNG_UST_DYNAMIC_TYPES] = { | |
70 | [LTTNG_UST_DYNAMIC_TYPE_NONE] = { | |
71 | .name = "none", | |
72 | .type = { | |
218deb69 MD |
73 | .atype = atype_struct_nestable, |
74 | .u.struct_nestable.nr_fields = 0, /* empty struct. */ | |
75 | .u.struct_nestable.alignment = 0, | |
53569322 MD |
76 | }, |
77 | .nowrite = 0, | |
78 | }, | |
79 | [LTTNG_UST_DYNAMIC_TYPE_S8] = { | |
80 | .name = "int8", | |
81 | .type = __type_integer(int8_t, BYTE_ORDER, 10, none), | |
82 | .nowrite = 0, | |
83 | }, | |
84 | [LTTNG_UST_DYNAMIC_TYPE_S16] = { | |
85 | .name = "int16", | |
86 | .type = __type_integer(int16_t, BYTE_ORDER, 10, none), | |
87 | .nowrite = 0, | |
88 | }, | |
89 | [LTTNG_UST_DYNAMIC_TYPE_S32] = { | |
90 | .name = "int32", | |
91 | .type = __type_integer(int32_t, BYTE_ORDER, 10, none), | |
92 | .nowrite = 0, | |
93 | }, | |
94 | [LTTNG_UST_DYNAMIC_TYPE_S64] = { | |
95 | .name = "int64", | |
96 | .type = __type_integer(int64_t, BYTE_ORDER, 10, none), | |
97 | .nowrite = 0, | |
98 | }, | |
99 | [LTTNG_UST_DYNAMIC_TYPE_U8] = { | |
100 | .name = "uint8", | |
101 | .type = __type_integer(uint8_t, BYTE_ORDER, 10, none), | |
102 | .nowrite = 0, | |
103 | }, | |
104 | [LTTNG_UST_DYNAMIC_TYPE_U16] = { | |
105 | .name = "uint16", | |
106 | .type = __type_integer(uint16_t, BYTE_ORDER, 10, none), | |
107 | .nowrite = 0, | |
108 | }, | |
109 | [LTTNG_UST_DYNAMIC_TYPE_U32] = { | |
110 | .name = "uint32", | |
111 | .type = __type_integer(uint32_t, BYTE_ORDER, 10, none), | |
112 | .nowrite = 0, | |
113 | }, | |
114 | [LTTNG_UST_DYNAMIC_TYPE_U64] = { | |
115 | .name = "uint64", | |
116 | .type = __type_integer(uint64_t, BYTE_ORDER, 10, none), | |
117 | .nowrite = 0, | |
118 | }, | |
119 | [LTTNG_UST_DYNAMIC_TYPE_FLOAT] = { | |
120 | .name = "float", | |
121 | .type = __type_float(float), | |
122 | .nowrite = 0, | |
123 | }, | |
124 | [LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = { | |
125 | .name = "double", | |
126 | .type = __type_float(double), | |
127 | .nowrite = 0, | |
128 | }, | |
129 | [LTTNG_UST_DYNAMIC_TYPE_STRING] = { | |
130 | .name = "string", | |
131 | .type = { | |
132 | .atype = atype_string, | |
218deb69 | 133 | .u.string.encoding = lttng_encode_UTF8, |
53569322 MD |
134 | }, |
135 | .nowrite = 0, | |
136 | }, | |
137 | }; | |
138 | ||
139 | static const struct lttng_event_field dt_enum_field = { | |
140 | .name = NULL, | |
218deb69 MD |
141 | .type.atype = atype_enum_nestable, |
142 | .type.u.enum_nestable.desc = &dt_enum_desc, | |
143 | .type.u.enum_nestable.container_type = | |
144 | __LTTNG_COMPOUND_LITERAL(struct lttng_type, | |
145 | __type_integer(char, BYTE_ORDER, 10, none)), | |
53569322 MD |
146 | .nowrite = 0, |
147 | }; | |
148 | ||
149 | const struct lttng_event_field *lttng_ust_dynamic_type_field(int64_t value) | |
150 | { | |
151 | if (value >= _NR_LTTNG_UST_DYNAMIC_TYPES || value < 0) | |
152 | return NULL; | |
153 | return &dt_var_fields[value]; | |
154 | } | |
155 | ||
156 | int lttng_ust_dynamic_type_choices(size_t *nr_choices, const struct lttng_event_field **choices) | |
157 | { | |
158 | *nr_choices = _NR_LTTNG_UST_DYNAMIC_TYPES; | |
159 | *choices = dt_var_fields; | |
160 | return 0; | |
161 | } | |
162 | ||
163 | const struct lttng_event_field *lttng_ust_dynamic_type_tag_field(void) | |
164 | { | |
165 | return &dt_enum_field; | |
166 | } |