Move all sources to 'src/'
[lttng-ust.git] / src / liblttng-ust / lttng-ust-dynamic-type.c
diff --git a/src/liblttng-ust/lttng-ust-dynamic-type.c b/src/liblttng-ust/lttng-ust-dynamic-type.c
new file mode 100644 (file)
index 0000000..3012869
--- /dev/null
@@ -0,0 +1,174 @@
+/*
+ * 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_ust_is_signed_type(__typeof__(_value)), \
+                       .value = lttng_ust_is_signed_type(__typeof__(_value)) ? \
+                               (long long) (_value) : (_value),        \
+               },                                                      \
+               .end = {                                                \
+                       .signedness = lttng_ust_is_signed_type(__typeof__(_value)), \
+                       .value = lttng_ust_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 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(const 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(const 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(const 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(const 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(const 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(const 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(const 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(const 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(const 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(const 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(const 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(const 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 const 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,
+};
+
+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;
+}
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