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

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 = (struct lttng_ust_type_common *) __LTTNG_COMPOUND_LITERAL(struct lttng_ust_type_struct, {
			.parent = {
				.type = lttng_ust_type_struct,
			},
			.struct_size = sizeof(struct lttng_ust_type_struct),
			.nr_fields = 0,	/* empty struct */
			.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 = lttng_ust_type_integer_define(int8_t, BYTE_ORDER, 10),
		.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 = lttng_ust_type_integer_define(int16_t, BYTE_ORDER, 10),
		.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 = lttng_ust_type_integer_define(int32_t, BYTE_ORDER, 10),
		.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 = lttng_ust_type_integer_define(int64_t, BYTE_ORDER, 10),
		.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 = lttng_ust_type_integer_define(uint8_t, BYTE_ORDER, 10),
		.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 = lttng_ust_type_integer_define(uint16_t, BYTE_ORDER, 10),
		.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 = lttng_ust_type_integer_define(uint32_t, BYTE_ORDER, 10),
		.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 = lttng_ust_type_integer_define(uint64_t, BYTE_ORDER, 10),
		.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 = lttng_ust_type_float_define(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 = lttng_ust_type_float_define(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 = (struct lttng_ust_type_common *) __LTTNG_COMPOUND_LITERAL(struct lttng_ust_type_string, {
			.parent = {
				.type = lttng_ust_type_string,
			},
			.struct_size = sizeof(struct lttng_ust_type_string),
			.encoding = lttng_ust_string_encoding_UTF8,
		}),
		.nowrite = 0,
	}),
};

static struct lttng_ust_event_field dt_enum_field = {
	.struct_size = sizeof(struct lttng_ust_event_field),
	.name = NULL,
	.type = (struct lttng_ust_type_common *) __LTTNG_COMPOUND_LITERAL(struct lttng_ust_type_enum, {
		.parent = {
			.type = lttng_ust_type_enum,
		},
		.struct_size = sizeof(struct lttng_ust_type_enum),
		.desc = &dt_enum_desc,
		.container_type = lttng_ust_type_integer_define(char, BYTE_ORDER, 10),
	}),
	.nowrite = 0,
};

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, struct lttng_ust_event_field ***choices)
{
	*nr_choices = _NR_LTTNG_UST_DYNAMIC_TYPES;
	*choices = dt_var_fields;
	return 0;
}

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
a084756d	34	static 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
a084756d	49	static 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
a084756d	55	struct lttng_ust_event_field *dt_var_fields[_NR_LTTNG_UST_DYNAMIC_TYPES] = {
25cff019 MD	56	[LTTNG_UST_DYNAMIC_TYPE_NONE] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
25cff019 MD	57	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	58	.name = "none",
a084756d MD	59	.type = (struct lttng_ust_type_common *) __LTTNG_COMPOUND_LITERAL(struct lttng_ust_type_struct, {
	60	.parent = {
	61	.type = lttng_ust_type_struct,
	62	},
	63	.struct_size = sizeof(struct lttng_ust_type_struct),
	64	.nr_fields = 0, /* empty struct */
	65	.alignment = 0,
	66	}),
53569322	67	.nowrite = 0,
25cff019 MD	68	}),
	69	[LTTNG_UST_DYNAMIC_TYPE_S8] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	70	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	71	.name = "int8",
a084756d	72	.type = lttng_ust_type_integer_define(int8_t, BYTE_ORDER, 10),
53569322	73	.nowrite = 0,
25cff019 MD	74	}),
	75	[LTTNG_UST_DYNAMIC_TYPE_S16] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	76	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	77	.name = "int16",
a084756d	78	.type = lttng_ust_type_integer_define(int16_t, BYTE_ORDER, 10),
53569322	79	.nowrite = 0,
25cff019 MD	80	}),
	81	[LTTNG_UST_DYNAMIC_TYPE_S32] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	82	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	83	.name = "int32",
a084756d	84	.type = lttng_ust_type_integer_define(int32_t, BYTE_ORDER, 10),
53569322	85	.nowrite = 0,
25cff019 MD	86	}),
	87	[LTTNG_UST_DYNAMIC_TYPE_S64] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	88	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	89	.name = "int64",
a084756d	90	.type = lttng_ust_type_integer_define(int64_t, BYTE_ORDER, 10),
53569322	91	.nowrite = 0,
25cff019 MD	92	}),
	93	[LTTNG_UST_DYNAMIC_TYPE_U8] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	94	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	95	.name = "uint8",
a084756d	96	.type = lttng_ust_type_integer_define(uint8_t, BYTE_ORDER, 10),
53569322	97	.nowrite = 0,
25cff019 MD	98	}),
	99	[LTTNG_UST_DYNAMIC_TYPE_U16] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	100	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	101	.name = "uint16",
a084756d	102	.type = lttng_ust_type_integer_define(uint16_t, BYTE_ORDER, 10),
53569322	103	.nowrite = 0,
25cff019 MD	104	}),
	105	[LTTNG_UST_DYNAMIC_TYPE_U32] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	106	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	107	.name = "uint32",
a084756d	108	.type = lttng_ust_type_integer_define(uint32_t, BYTE_ORDER, 10),
53569322	109	.nowrite = 0,
25cff019 MD	110	}),
	111	[LTTNG_UST_DYNAMIC_TYPE_U64] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	112	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	113	.name = "uint64",
a084756d	114	.type = lttng_ust_type_integer_define(uint64_t, BYTE_ORDER, 10),
53569322	115	.nowrite = 0,
25cff019 MD	116	}),
	117	[LTTNG_UST_DYNAMIC_TYPE_FLOAT] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	118	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	119	.name = "float",
a084756d	120	.type = lttng_ust_type_float_define(float),
53569322	121	.nowrite = 0,
25cff019 MD	122	}),
	123	[LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	124	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	125	.name = "double",
a084756d	126	.type = lttng_ust_type_float_define(double),
53569322	127	.nowrite = 0,
25cff019 MD	128	}),
	129	[LTTNG_UST_DYNAMIC_TYPE_STRING] = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_event_field, {
	130	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	131	.name = "string",
a084756d MD	132	.type = (struct lttng_ust_type_common *) __LTTNG_COMPOUND_LITERAL(struct lttng_ust_type_string, {
	133	.parent = {
	134	.type = lttng_ust_type_string,
	135	},
	136	.struct_size = sizeof(struct lttng_ust_type_string),
	137	.encoding = lttng_ust_string_encoding_UTF8,
	138	}),
53569322	139	.nowrite = 0,
25cff019	140	}),
53569322 MD	141	};
53569322 MD	142
a084756d MD	143	static struct lttng_ust_event_field dt_enum_field = {
a084756d MD	144	.struct_size = sizeof(struct lttng_ust_event_field),
53569322	145	.name = NULL,
a084756d MD	146	.type = (struct lttng_ust_type_common *) __LTTNG_COMPOUND_LITERAL(struct lttng_ust_type_enum, {
	147	.parent = {
	148	.type = lttng_ust_type_enum,
	149	},
	150	.struct_size = sizeof(struct lttng_ust_type_enum),
	151	.desc = &dt_enum_desc,
	152	.container_type = lttng_ust_type_integer_define(char, BYTE_ORDER, 10),
	153	}),
53569322 MD	154	.nowrite = 0,
	155	};
	156
a084756d	157	struct lttng_ust_event_field *lttng_ust_dynamic_type_field(int64_t value)
53569322 MD	158	{
	159	if (value >= _NR_LTTNG_UST_DYNAMIC_TYPES \|\| value < 0)
	160	return NULL;
25cff019	161	return dt_var_fields[value];
53569322 MD	162	}
53569322 MD	163
a084756d	164	int lttng_ust_dynamic_type_choices(size_t nr_choices, struct lttng_ust_event_field **choices)
53569322 MD	165	{
	166	*nr_choices = _NR_LTTNG_UST_DYNAMIC_TYPES;
	167	*choices = dt_var_fields;
	168	return 0;
	169	}
	170
a084756d	171	struct lttng_ust_event_field *lttng_ust_dynamic_type_tag_field(void)
53569322 MD	172	{
	173	return &dt_enum_field;
	174	}