| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2018 Philippe Proulx <pproulx@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #include <babeltrace2/babeltrace.h> |
| 8 | #include "common/macros.h" |
| 9 | #include "common/assert.h" |
| 10 | #include <glib.h> |
| 11 | #include <stdint.h> |
| 12 | #include <string.h> |
| 13 | #include <inttypes.h> |
| 14 | |
| 15 | #include "ctf-meta-visitors.h" |
| 16 | |
| 17 | static |
| 18 | int set_int_field_class_meaning_by_name(struct ctf_field_class *fc, |
| 19 | const char *field_name, const char *id_name, |
| 20 | enum ctf_field_class_meaning meaning) |
| 21 | { |
| 22 | int ret = 0; |
| 23 | uint64_t i; |
| 24 | |
| 25 | if (!fc) { |
| 26 | goto end; |
| 27 | } |
| 28 | |
| 29 | switch (fc->type) { |
| 30 | case CTF_FIELD_CLASS_TYPE_INT: |
| 31 | case CTF_FIELD_CLASS_TYPE_ENUM: |
| 32 | { |
| 33 | struct ctf_field_class_int *int_fc = (void *) fc; |
| 34 | |
| 35 | if (field_name && strcmp(field_name, id_name) == 0) { |
| 36 | int_fc->meaning = meaning; |
| 37 | } |
| 38 | |
| 39 | break; |
| 40 | } |
| 41 | case CTF_FIELD_CLASS_TYPE_STRUCT: |
| 42 | { |
| 43 | struct ctf_field_class_struct *struct_fc = (void *) fc; |
| 44 | |
| 45 | for (i = 0; i < struct_fc->members->len; i++) { |
| 46 | struct ctf_named_field_class *named_fc = |
| 47 | ctf_field_class_struct_borrow_member_by_index( |
| 48 | struct_fc, i); |
| 49 | |
| 50 | ret = set_int_field_class_meaning_by_name(named_fc->fc, |
| 51 | named_fc->name->str, id_name, meaning); |
| 52 | if (ret) { |
| 53 | goto end; |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | break; |
| 58 | } |
| 59 | case CTF_FIELD_CLASS_TYPE_VARIANT: |
| 60 | { |
| 61 | struct ctf_field_class_variant *var_fc = (void *) fc; |
| 62 | |
| 63 | for (i = 0; i < var_fc->options->len; i++) { |
| 64 | struct ctf_named_field_class *named_fc = |
| 65 | ctf_field_class_variant_borrow_option_by_index( |
| 66 | var_fc, i); |
| 67 | |
| 68 | ret = set_int_field_class_meaning_by_name(named_fc->fc, |
| 69 | NULL, id_name, meaning); |
| 70 | if (ret) { |
| 71 | goto end; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | break; |
| 76 | } |
| 77 | case CTF_FIELD_CLASS_TYPE_ARRAY: |
| 78 | case CTF_FIELD_CLASS_TYPE_SEQUENCE: |
| 79 | { |
| 80 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
| 81 | |
| 82 | ret = set_int_field_class_meaning_by_name(array_fc->elem_fc, |
| 83 | NULL, id_name, meaning); |
| 84 | if (ret) { |
| 85 | goto end; |
| 86 | } |
| 87 | |
| 88 | break; |
| 89 | } |
| 90 | default: |
| 91 | break; |
| 92 | } |
| 93 | |
| 94 | end: |
| 95 | return ret; |
| 96 | } |
| 97 | |
| 98 | static |
| 99 | int update_stream_class_meanings(struct ctf_stream_class *sc) |
| 100 | { |
| 101 | int ret = 0; |
| 102 | struct ctf_field_class_int *int_fc; |
| 103 | uint64_t i; |
| 104 | |
| 105 | if (!sc->is_translated) { |
| 106 | if (sc->packet_context_fc) { |
| 107 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 108 | (void *) sc->packet_context_fc, "timestamp_begin"); |
| 109 | if (int_fc) { |
| 110 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME; |
| 111 | } |
| 112 | |
| 113 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 114 | (void *) sc->packet_context_fc, "timestamp_end"); |
| 115 | if (int_fc) { |
| 116 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_PACKET_END_TIME; |
| 117 | |
| 118 | /* |
| 119 | * Remove mapped clock class to avoid updating |
| 120 | * the clock immediately when decoding. |
| 121 | */ |
| 122 | int_fc->mapped_clock_class = NULL; |
| 123 | } |
| 124 | |
| 125 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 126 | (void *) sc->packet_context_fc, "events_discarded"); |
| 127 | if (int_fc) { |
| 128 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT; |
| 129 | } |
| 130 | |
| 131 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 132 | (void *) sc->packet_context_fc, "packet_seq_num"); |
| 133 | if (int_fc) { |
| 134 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT; |
| 135 | |
| 136 | } |
| 137 | |
| 138 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 139 | (void *) sc->packet_context_fc, "packet_size"); |
| 140 | if (int_fc) { |
| 141 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE; |
| 142 | } |
| 143 | |
| 144 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 145 | (void *) sc->packet_context_fc, "content_size"); |
| 146 | if (int_fc) { |
| 147 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE; |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | if (sc->event_header_fc) { |
| 152 | ret = set_int_field_class_meaning_by_name( |
| 153 | sc->event_header_fc, NULL, "id", |
| 154 | CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID); |
| 155 | if (ret) { |
| 156 | goto end; |
| 157 | } |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | for (i = 0; i < sc->event_classes->len; i++) { |
| 162 | struct ctf_event_class *ec = sc->event_classes->pdata[i]; |
| 163 | |
| 164 | if (ec->is_translated) { |
| 165 | continue; |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | end: |
| 170 | return ret; |
| 171 | } |
| 172 | |
| 173 | BT_HIDDEN |
| 174 | int ctf_trace_class_update_meanings(struct ctf_trace_class *ctf_tc) |
| 175 | { |
| 176 | int ret = 0; |
| 177 | struct ctf_field_class_int *int_fc; |
| 178 | struct ctf_named_field_class *named_fc; |
| 179 | uint64_t i; |
| 180 | |
| 181 | if (!ctf_tc->is_translated && ctf_tc->packet_header_fc) { |
| 182 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 183 | (void *) ctf_tc->packet_header_fc, "magic"); |
| 184 | if (int_fc) { |
| 185 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_MAGIC; |
| 186 | } |
| 187 | |
| 188 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 189 | (void *) ctf_tc->packet_header_fc, "stream_id"); |
| 190 | if (int_fc) { |
| 191 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID; |
| 192 | } |
| 193 | |
| 194 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 195 | (void *) ctf_tc->packet_header_fc, |
| 196 | "stream_instance_id"); |
| 197 | if (int_fc) { |
| 198 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID; |
| 199 | } |
| 200 | |
| 201 | named_fc = ctf_field_class_struct_borrow_member_by_name( |
| 202 | (void *) ctf_tc->packet_header_fc, "uuid"); |
| 203 | if (named_fc && named_fc->fc->type == CTF_FIELD_CLASS_TYPE_ARRAY) { |
| 204 | struct ctf_field_class_array *array_fc = |
| 205 | (void *) named_fc->fc; |
| 206 | |
| 207 | array_fc->meaning = CTF_FIELD_CLASS_MEANING_UUID; |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | for (i = 0; i < ctf_tc->stream_classes->len; i++) { |
| 212 | ret = update_stream_class_meanings( |
| 213 | ctf_tc->stream_classes->pdata[i]); |
| 214 | if (ret) { |
| 215 | goto end; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | end: |
| 220 | return ret; |
| 221 | } |