| 1 | #ifndef BABELTRACE_CTF_IR_EVENT_TYPES_INTERNAL_H |
| 2 | #define BABELTRACE_CTF_IR_EVENT_TYPES_INTERNAL_H |
| 3 | |
| 4 | /* |
| 5 | * BabelTrace - CTF IR: Event types internal |
| 6 | * |
| 7 | * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 8 | * |
| 9 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 10 | * |
| 11 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 12 | * of this software and associated documentation files (the "Software"), to deal |
| 13 | * in the Software without restriction, including without limitation the rights |
| 14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 15 | * copies of the Software, and to permit persons to whom the Software is |
| 16 | * furnished to do so, subject to the following conditions: |
| 17 | * |
| 18 | * The above copyright notice and this permission notice shall be included in |
| 19 | * all copies or substantial portions of the Software. |
| 20 | * |
| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 22 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 23 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 24 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 25 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 26 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 27 | * SOFTWARE. |
| 28 | */ |
| 29 | |
| 30 | #include <babeltrace/ctf-writer/event-types.h> |
| 31 | #include <babeltrace/ctf-writer/event-fields.h> |
| 32 | #include <babeltrace/ctf-writer/writer.h> |
| 33 | #include <babeltrace/ctf-ir/trace-internal.h> |
| 34 | #include <babeltrace/babeltrace-internal.h> |
| 35 | #include <babeltrace/object-internal.h> |
| 36 | #include <babeltrace/types.h> |
| 37 | #include <babeltrace/ctf/events.h> |
| 38 | #include <glib.h> |
| 39 | |
| 40 | typedef void (*type_freeze_func)(struct bt_ctf_field_type *); |
| 41 | typedef int (*type_serialize_func)(struct bt_ctf_field_type *, |
| 42 | struct metadata_context *); |
| 43 | |
| 44 | enum bt_ctf_node { |
| 45 | CTF_NODE_UNKNOWN = -1, |
| 46 | CTF_NODE_ENV = 0, |
| 47 | CTF_NODE_TRACE_PACKET_HEADER = 1, |
| 48 | CTF_NODE_STREAM_PACKET_CONTEXT = 2, |
| 49 | CTF_NODE_STREAM_EVENT_HEADER = 3, |
| 50 | CTF_NODE_STREAM_EVENT_CONTEXT = 4, |
| 51 | CTF_NODE_EVENT_CONTEXT = 5, |
| 52 | CTF_NODE_EVENT_FIELDS = 6, |
| 53 | }; |
| 54 | |
| 55 | struct bt_ctf_field_path { |
| 56 | enum bt_ctf_node root; |
| 57 | /* |
| 58 | * Array of integers (int) indicating the index in either |
| 59 | * structures or variants that make-up the path to a field. |
| 60 | */ |
| 61 | GArray *path_indexes; |
| 62 | }; |
| 63 | |
| 64 | struct bt_ctf_field_type { |
| 65 | struct bt_object base; |
| 66 | struct bt_declaration *declaration; |
| 67 | type_freeze_func freeze; |
| 68 | type_serialize_func serialize; |
| 69 | /* |
| 70 | * A type can't be modified once it is added to an event or after a |
| 71 | * a field has been instanciated from it. |
| 72 | */ |
| 73 | int frozen; |
| 74 | |
| 75 | /* |
| 76 | * This flag indicates if the field type is valid. A valid |
| 77 | * field type is _always_ frozen. All the nested field types of |
| 78 | * a valid field type are also valid (and thus frozen). |
| 79 | */ |
| 80 | int valid; |
| 81 | }; |
| 82 | |
| 83 | struct bt_ctf_field_type_integer { |
| 84 | struct bt_ctf_field_type parent; |
| 85 | struct declaration_integer declaration; |
| 86 | struct bt_ctf_clock *mapped_clock; |
| 87 | |
| 88 | /* |
| 89 | * This is what the user sets and is never modified by internal |
| 90 | * code. |
| 91 | * |
| 92 | * This field must contain a `BT_CTF_BYTE_ORDER_*` value. |
| 93 | */ |
| 94 | enum bt_ctf_byte_order user_byte_order; |
| 95 | }; |
| 96 | |
| 97 | struct enumeration_mapping { |
| 98 | union { |
| 99 | uint64_t _unsigned; |
| 100 | int64_t _signed; |
| 101 | } range_start; |
| 102 | |
| 103 | union { |
| 104 | uint64_t _unsigned; |
| 105 | int64_t _signed; |
| 106 | } range_end; |
| 107 | GQuark string; |
| 108 | }; |
| 109 | |
| 110 | struct bt_ctf_field_type_enumeration { |
| 111 | struct bt_ctf_field_type parent; |
| 112 | struct bt_ctf_field_type *container; |
| 113 | GPtrArray *entries; /* Array of ptrs to struct enumeration_mapping */ |
| 114 | struct declaration_enum declaration; |
| 115 | }; |
| 116 | |
| 117 | struct bt_ctf_field_type_floating_point { |
| 118 | struct bt_ctf_field_type parent; |
| 119 | struct declaration_float declaration; |
| 120 | |
| 121 | /* |
| 122 | * The `declaration` field above contains 3 pointers pointing |
| 123 | * to the fields below. This avoids unnecessary dynamic |
| 124 | * allocations. |
| 125 | */ |
| 126 | struct declaration_integer sign; |
| 127 | struct declaration_integer mantissa; |
| 128 | struct declaration_integer exp; |
| 129 | |
| 130 | /* |
| 131 | * This is what the user sets and is never modified by internal |
| 132 | * code. |
| 133 | * |
| 134 | * This field must contain a `BT_CTF_BYTE_ORDER_*` value. |
| 135 | */ |
| 136 | enum bt_ctf_byte_order user_byte_order; |
| 137 | }; |
| 138 | |
| 139 | struct structure_field { |
| 140 | GQuark name; |
| 141 | struct bt_ctf_field_type *type; |
| 142 | }; |
| 143 | |
| 144 | struct bt_ctf_field_type_structure { |
| 145 | struct bt_ctf_field_type parent; |
| 146 | GHashTable *field_name_to_index; |
| 147 | GPtrArray *fields; /* Array of pointers to struct structure_field */ |
| 148 | struct declaration_struct declaration; |
| 149 | }; |
| 150 | |
| 151 | struct bt_ctf_field_type_variant { |
| 152 | struct bt_ctf_field_type parent; |
| 153 | GString *tag_name; |
| 154 | struct bt_ctf_field_type_enumeration *tag; |
| 155 | struct bt_ctf_field_path *tag_path; |
| 156 | GHashTable *field_name_to_index; |
| 157 | GPtrArray *fields; /* Array of pointers to struct structure_field */ |
| 158 | struct declaration_variant declaration; |
| 159 | }; |
| 160 | |
| 161 | struct bt_ctf_field_type_array { |
| 162 | struct bt_ctf_field_type parent; |
| 163 | struct bt_ctf_field_type *element_type; |
| 164 | unsigned int length; /* Number of elements */ |
| 165 | struct declaration_array declaration; |
| 166 | }; |
| 167 | |
| 168 | struct bt_ctf_field_type_sequence { |
| 169 | struct bt_ctf_field_type parent; |
| 170 | struct bt_ctf_field_type *element_type; |
| 171 | GString *length_field_name; |
| 172 | struct bt_ctf_field_path *length_field_path; |
| 173 | struct declaration_sequence declaration; |
| 174 | }; |
| 175 | |
| 176 | struct bt_ctf_field_type_string { |
| 177 | struct bt_ctf_field_type parent; |
| 178 | struct declaration_string declaration; |
| 179 | }; |
| 180 | |
| 181 | BT_HIDDEN |
| 182 | void bt_ctf_field_type_freeze(struct bt_ctf_field_type *type); |
| 183 | |
| 184 | BT_HIDDEN |
| 185 | struct bt_ctf_field_type *bt_ctf_field_type_variant_get_field_type_signed( |
| 186 | struct bt_ctf_field_type_variant *variant, int64_t tag_value); |
| 187 | |
| 188 | BT_HIDDEN |
| 189 | struct bt_ctf_field_type *bt_ctf_field_type_variant_get_field_type_unsigned( |
| 190 | struct bt_ctf_field_type_variant *variant, uint64_t tag_value); |
| 191 | |
| 192 | BT_HIDDEN |
| 193 | int bt_ctf_field_type_serialize(struct bt_ctf_field_type *type, |
| 194 | struct metadata_context *context); |
| 195 | |
| 196 | BT_HIDDEN |
| 197 | int bt_ctf_field_type_validate(struct bt_ctf_field_type *type); |
| 198 | |
| 199 | BT_HIDDEN |
| 200 | const char *bt_ctf_field_type_enumeration_get_mapping_name_unsigned( |
| 201 | struct bt_ctf_field_type_enumeration *enumeration_type, |
| 202 | uint64_t value); |
| 203 | |
| 204 | BT_HIDDEN |
| 205 | const char *bt_ctf_field_type_enumeration_get_mapping_name_signed( |
| 206 | struct bt_ctf_field_type_enumeration *enumeration_type, |
| 207 | int64_t value); |
| 208 | |
| 209 | /* Override field type's byte order only if it is set to "native" */ |
| 210 | BT_HIDDEN |
| 211 | void bt_ctf_field_type_set_native_byte_order( |
| 212 | struct bt_ctf_field_type *type, int byte_order); |
| 213 | |
| 214 | /* Deep copy a field type */ |
| 215 | BT_HIDDEN |
| 216 | struct bt_ctf_field_type *bt_ctf_field_type_copy( |
| 217 | struct bt_ctf_field_type *type); |
| 218 | |
| 219 | BT_HIDDEN |
| 220 | struct bt_ctf_field_path *bt_ctf_field_path_create(void); |
| 221 | |
| 222 | BT_HIDDEN |
| 223 | void bt_ctf_field_path_clear(struct bt_ctf_field_path *field_path); |
| 224 | |
| 225 | BT_HIDDEN |
| 226 | struct bt_ctf_field_path *bt_ctf_field_path_copy( |
| 227 | struct bt_ctf_field_path *path); |
| 228 | |
| 229 | BT_HIDDEN |
| 230 | void bt_ctf_field_path_destroy(struct bt_ctf_field_path *path); |
| 231 | |
| 232 | BT_HIDDEN |
| 233 | int bt_ctf_field_type_structure_get_field_name_index( |
| 234 | struct bt_ctf_field_type *structure, const char *name); |
| 235 | |
| 236 | /* Replace an existing field's type in a structure */ |
| 237 | BT_HIDDEN |
| 238 | int bt_ctf_field_type_structure_set_field_index( |
| 239 | struct bt_ctf_field_type *structure, |
| 240 | struct bt_ctf_field_type *field, int index); |
| 241 | |
| 242 | BT_HIDDEN |
| 243 | int bt_ctf_field_type_variant_get_field_name_index( |
| 244 | struct bt_ctf_field_type *variant, const char *name); |
| 245 | |
| 246 | BT_HIDDEN |
| 247 | int bt_ctf_field_type_sequence_set_length_field_path( |
| 248 | struct bt_ctf_field_type *type, |
| 249 | struct bt_ctf_field_path *path); |
| 250 | |
| 251 | BT_HIDDEN |
| 252 | struct bt_ctf_field_path *bt_ctf_field_type_sequence_get_length_field_path( |
| 253 | struct bt_ctf_field_type *type); |
| 254 | |
| 255 | BT_HIDDEN |
| 256 | int bt_ctf_field_type_variant_set_tag_field_path(struct bt_ctf_field_type *type, |
| 257 | struct bt_ctf_field_path *path); |
| 258 | |
| 259 | BT_HIDDEN |
| 260 | struct bt_ctf_field_path *bt_ctf_field_type_variant_get_tag_field_path( |
| 261 | struct bt_ctf_field_type *type); |
| 262 | |
| 263 | BT_HIDDEN |
| 264 | int bt_ctf_field_type_variant_set_tag(struct bt_ctf_field_type *type, |
| 265 | struct bt_ctf_field_type *tag); |
| 266 | |
| 267 | /* Replace an existing field's type in a variant */ |
| 268 | BT_HIDDEN |
| 269 | int bt_ctf_field_type_variant_set_field_index( |
| 270 | struct bt_ctf_field_type *variant, |
| 271 | struct bt_ctf_field_type *field, int index); |
| 272 | |
| 273 | BT_HIDDEN |
| 274 | int bt_ctf_field_type_array_set_element_type(struct bt_ctf_field_type *array, |
| 275 | struct bt_ctf_field_type *element_type); |
| 276 | |
| 277 | BT_HIDDEN |
| 278 | int bt_ctf_field_type_sequence_set_element_type(struct bt_ctf_field_type *array, |
| 279 | struct bt_ctf_field_type *element_type); |
| 280 | |
| 281 | #endif /* BABELTRACE_CTF_IR_EVENT_TYPES_INTERNAL_H */ |