[lttng-ust.git] / liblttng-ust / lttng-ust-dynamic-type.c

/*
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 * Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * UST dynamic type implementation.
 */

#define _LGPL_SOURCE
#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
#include <inttypes.h>

#include <ust-helper.h>
#include <ust-dynamic-type.h>

#define ctf_enum_value(_string, _value)					\
	__LTTNG_COMPOUND_LITERAL(struct lttng_ust_enum_entry, {		\
		.struct_size = sizeof(struct lttng_ust_enum_entry),		\
		.start = {						\
			.signedness = lttng_is_signed_type(__typeof__(_value)), \
			.value = lttng_is_signed_type(__typeof__(_value)) ? \
				(long long) (_value) : (_value),	\
		},							\
		.end = {						\
			.signedness = lttng_is_signed_type(__typeof__(_value)), \
			.value = lttng_is_signed_type(__typeof__(_value)) ? \
				(long long) (_value) : (_value),	\
		},							\
		.string = (_string),					\
	}),

static const struct lttng_ust_enum_entry *dt_enum[_NR_LTTNG_UST_DYNAMIC_TYPES] = {
	[LTTNG_UST_DYNAMIC_TYPE_NONE] = ctf_enum_value("_none", 0)
	[LTTNG_UST_DYNAMIC_TYPE_S8] = ctf_enum_value("_int8", 1)
	[LTTNG_UST_DYNAMIC_TYPE_S16] = ctf_enum_value("_int16", 2)
	[LTTNG_UST_DYNAMIC_TYPE_S32] = ctf_enum_value("_int32", 3)
	[LTTNG_UST_DYNAMIC_TYPE_S64] = ctf_enum_value("_int64", 4)
	[LTTNG_UST_DYNAMIC_TYPE_U8] = ctf_enum_value("_uint8", 5)
	[LTTNG_UST_DYNAMIC_TYPE_U16] = ctf_enum_value("_uint16", 6)
	[LTTNG_UST_DYNAMIC_TYPE_U32] = ctf_enum_value("_uint32", 7)
	[LTTNG_UST_DYNAMIC_TYPE_U64] = ctf_enum_value("_uint64", 8)
	[LTTNG_UST_DYNAMIC_TYPE_FLOAT] = ctf_enum_value("_float", 9)
	[LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = ctf_enum_value("_double", 10)
	[LTTNG_UST_DYNAMIC_TYPE_STRING] = ctf_enum_value("_string", 11)
};

static const struct lttng_ust_enum_desc dt_enum_desc = {
	.name = "dynamic_type_enum",
	.entries = dt_enum,
	.nr_entries = LTTNG_ARRAY_SIZE(dt_enum),
};

const struct lttng_ust_event_field *dt_var_fields[_NR_LTTNG_UST_DYNAMIC_TYPES] = {
	[LTTNG_UST_DYNAMIC_TYPE_NONE] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "none",
		.type = {
			.atype = atype_struct_nestable,
			.u.struct_nestable.nr_fields = 0,	/* empty struct. */
			.u.struct_nestable.alignment = 0,
		},
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_S8] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "int8",
		.type = __type_integer(int8_t, BYTE_ORDER, 10, none),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_S16] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "int16",
		.type = __type_integer(int16_t, BYTE_ORDER, 10, none),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_S32] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "int32",
		.type = __type_integer(int32_t, BYTE_ORDER, 10, none),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_S64] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "int64",
		.type = __type_integer(int64_t, BYTE_ORDER, 10, none),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_U8] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "uint8",
		.type = __type_integer(uint8_t, BYTE_ORDER, 10, none),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_U16] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "uint16",
		.type = __type_integer(uint16_t, BYTE_ORDER, 10, none),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_U32] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "uint32",
		.type = __type_integer(uint32_t, BYTE_ORDER, 10, none),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_U64] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "uint64",
		.type = __type_integer(uint64_t, BYTE_ORDER, 10, none),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_FLOAT] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "float",
		.type = __type_float(float),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "double",
		.type = __type_float(double),
		.nowrite = 0,
	}),
	[LTTNG_UST_DYNAMIC_TYPE_STRING] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
		.struct_size = sizeof(struct lttng_ust_event_field),
		.name = "string",
		.type = {
			.atype = atype_string,
			.u.string.encoding = lttng_encode_UTF8,
		},
		.nowrite = 0,
	}),
};

static const struct lttng_ust_event_field dt_enum_field = {
	.name = NULL,
	.type.atype = atype_enum_nestable,
	.type.u.enum_nestable.desc = &dt_enum_desc,
	.type.u.enum_nestable.container_type =
		__LTTNG_COMPOUND_LITERAL(struct lttng_type,
			__type_integer(char, BYTE_ORDER, 10, none)),
	.nowrite = 0,
};

const struct lttng_ust_event_field *lttng_ust_dynamic_type_field(int64_t value)
{
	if (value >= _NR_LTTNG_UST_DYNAMIC_TYPES || value < 0)
		return NULL;
	return dt_var_fields[value];
}

int lttng_ust_dynamic_type_choices(size_t *nr_choices, const struct lttng_ust_event_field ***choices)
{
	*nr_choices = _NR_LTTNG_UST_DYNAMIC_TYPES;
	*choices = dt_var_fields;
	return 0;
}

const struct lttng_ust_event_field *lttng_ust_dynamic_type_tag_field(void)
{
	return &dt_enum_field;
}
Commit	Line	Data
53569322	1	/*
c0c0989a	2	* SPDX-License-Identifier: LGPL-2.1-only
53569322 MD	3	*
	4	* Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	5	*
c0c0989a	6	* UST dynamic type implementation.
53569322 MD	7	*/
53569322 MD	8
3fbec7dc	9	#define _LGPL_SOURCE
53569322 MD	10	#include <stdio.h>
	11	#include <stdint.h>
	12	#include <stddef.h>
	13	#include <inttypes.h>
	14
864a1eda	15	#include <ust-helper.h>
ae4b659d	16	#include <ust-dynamic-type.h>
53569322	17
a6f80644	18	#define ctf_enum_value(_string, _value) \
891d6b55 MD	19	__LTTNG_COMPOUND_LITERAL(struct lttng_ust_enum_entry, { \
891d6b55 MD	20	.struct_size = sizeof(struct lttng_ust_enum_entry), \
a6f80644 MD	21	.start = { \
	22	.signedness = lttng_is_signed_type(__typeof__(_value)), \
	23	.value = lttng_is_signed_type(__typeof__(_value)) ? \
	24	(long long) (_value) : (_value), \
	25	}, \
	26	.end = { \
	27	.signedness = lttng_is_signed_type(__typeof__(_value)), \
	28	.value = lttng_is_signed_type(__typeof__(_value)) ? \
	29	(long long) (_value) : (_value), \
	30	}, \
	31	.string = (_string), \
891d6b55	32	}),
a6f80644	33
891d6b55	34	static const struct lttng_ust_enum_entry *dt_enum[_NR_LTTNG_UST_DYNAMIC_TYPES] = {
a6f80644 MD	35	[LTTNG_UST_DYNAMIC_TYPE_NONE] = ctf_enum_value("_none", 0)
	36	[LTTNG_UST_DYNAMIC_TYPE_S8] = ctf_enum_value("_int8", 1)
	37	[LTTNG_UST_DYNAMIC_TYPE_S16] = ctf_enum_value("_int16", 2)
	38	[LTTNG_UST_DYNAMIC_TYPE_S32] = ctf_enum_value("_int32", 3)
	39	[LTTNG_UST_DYNAMIC_TYPE_S64] = ctf_enum_value("_int64", 4)
	40	[LTTNG_UST_DYNAMIC_TYPE_U8] = ctf_enum_value("_uint8", 5)
	41	[LTTNG_UST_DYNAMIC_TYPE_U16] = ctf_enum_value("_uint16", 6)
	42	[LTTNG_UST_DYNAMIC_TYPE_U32] = ctf_enum_value("_uint32", 7)
	43	[LTTNG_UST_DYNAMIC_TYPE_U64] = ctf_enum_value("_uint64", 8)
	44	[LTTNG_UST_DYNAMIC_TYPE_FLOAT] = ctf_enum_value("_float", 9)
	45	[LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = ctf_enum_value("_double", 10)
	46	[LTTNG_UST_DYNAMIC_TYPE_STRING] = ctf_enum_value("_string", 11)
53569322 MD	47	};
53569322 MD	48
891d6b55	49	static const struct lttng_ust_enum_desc dt_enum_desc = {
53569322 MD	50	.name = "dynamic_type_enum",
	51	.entries = dt_enum,
	52	.nr_entries = LTTNG_ARRAY_SIZE(dt_enum),
	53	};
	54
25cff019 MD	55	const struct lttng_ust_event_field *dt_var_fields[_NR_LTTNG_UST_DYNAMIC_TYPES] = {
	56	[LTTNG_UST_DYNAMIC_TYPE_NONE] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	57	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	58	.name = "none",
53569322 MD	59	.type = {
218deb69 MD	60	.atype = atype_struct_nestable,
	61	.u.struct_nestable.nr_fields = 0, /* empty struct. */
	62	.u.struct_nestable.alignment = 0,
53569322 MD	63	},
53569322 MD	64	.nowrite = 0,
25cff019 MD	65	}),
	66	[LTTNG_UST_DYNAMIC_TYPE_S8] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	67	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	68	.name = "int8",
	69	.type = __type_integer(int8_t, BYTE_ORDER, 10, none),
	70	.nowrite = 0,
25cff019 MD	71	}),
	72	[LTTNG_UST_DYNAMIC_TYPE_S16] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	73	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	74	.name = "int16",
	75	.type = __type_integer(int16_t, BYTE_ORDER, 10, none),
	76	.nowrite = 0,
25cff019 MD	77	}),
	78	[LTTNG_UST_DYNAMIC_TYPE_S32] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	79	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	80	.name = "int32",
	81	.type = __type_integer(int32_t, BYTE_ORDER, 10, none),
	82	.nowrite = 0,
25cff019 MD	83	}),
	84	[LTTNG_UST_DYNAMIC_TYPE_S64] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	85	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	86	.name = "int64",
	87	.type = __type_integer(int64_t, BYTE_ORDER, 10, none),
	88	.nowrite = 0,
25cff019 MD	89	}),
	90	[LTTNG_UST_DYNAMIC_TYPE_U8] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	91	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	92	.name = "uint8",
	93	.type = __type_integer(uint8_t, BYTE_ORDER, 10, none),
	94	.nowrite = 0,
25cff019 MD	95	}),
	96	[LTTNG_UST_DYNAMIC_TYPE_U16] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	97	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	98	.name = "uint16",
	99	.type = __type_integer(uint16_t, BYTE_ORDER, 10, none),
	100	.nowrite = 0,
25cff019 MD	101	}),
	102	[LTTNG_UST_DYNAMIC_TYPE_U32] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	103	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	104	.name = "uint32",
	105	.type = __type_integer(uint32_t, BYTE_ORDER, 10, none),
	106	.nowrite = 0,
25cff019 MD	107	}),
	108	[LTTNG_UST_DYNAMIC_TYPE_U64] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	109	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	110	.name = "uint64",
	111	.type = __type_integer(uint64_t, BYTE_ORDER, 10, none),
	112	.nowrite = 0,
25cff019 MD	113	}),
	114	[LTTNG_UST_DYNAMIC_TYPE_FLOAT] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	115	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	116	.name = "float",
	117	.type = __type_float(float),
	118	.nowrite = 0,
25cff019 MD	119	}),
	120	[LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	121	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	122	.name = "double",
	123	.type = __type_float(double),
	124	.nowrite = 0,
25cff019 MD	125	}),
	126	[LTTNG_UST_DYNAMIC_TYPE_STRING] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	127	.struct_size = sizeof(struct lttng_ust_event_field),
53569322 MD	128	.name = "string",
	129	.type = {
	130	.atype = atype_string,
218deb69	131	.u.string.encoding = lttng_encode_UTF8,
53569322 MD	132	},
53569322 MD	133	.nowrite = 0,
25cff019	134	}),
53569322 MD	135	};
53569322 MD	136
25cff019	137	static const struct lttng_ust_event_field dt_enum_field = {
53569322	138	.name = NULL,
218deb69 MD	139	.type.atype = atype_enum_nestable,
	140	.type.u.enum_nestable.desc = &dt_enum_desc,
	141	.type.u.enum_nestable.container_type =
	142	__LTTNG_COMPOUND_LITERAL(struct lttng_type,
	143	__type_integer(char, BYTE_ORDER, 10, none)),
53569322 MD	144	.nowrite = 0,
	145	};
	146
25cff019	147	const struct lttng_ust_event_field *lttng_ust_dynamic_type_field(int64_t value)
53569322 MD	148	{
	149	if (value >= _NR_LTTNG_UST_DYNAMIC_TYPES \|\| value < 0)
	150	return NULL;
25cff019	151	return dt_var_fields[value];
53569322 MD	152	}
53569322 MD	153
25cff019	154	int lttng_ust_dynamic_type_choices(size_t nr_choices, const struct lttng_ust_event_field **choices)
53569322 MD	155	{
	156	*nr_choices = _NR_LTTNG_UST_DYNAMIC_TYPES;
	157	*choices = dt_var_fields;
	158	return 0;
	159	}
	160
25cff019	161	const struct lttng_ust_event_field *lttng_ust_dynamic_type_tag_field(void)
53569322 MD	162	{
	163	return &dt_enum_field;
	164	}