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