| 1 | /* |
| 2 | * Copyright 2018 - Philippe Proulx <pproulx@efficios.com> |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 5 | * of this software and associated documentation files (the "Software"), to deal |
| 6 | * in the Software without restriction, including without limitation the rights |
| 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 8 | * copies of the Software, and to permit persons to whom the Software is |
| 9 | * furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | */ |
| 14 | |
| 15 | #include <babeltrace2/babeltrace.h> |
| 16 | #include "common/macros.h" |
| 17 | #include "common/assert.h" |
| 18 | #include <glib.h> |
| 19 | #include <stdint.h> |
| 20 | #include <string.h> |
| 21 | #include <inttypes.h> |
| 22 | |
| 23 | #include "ctf-meta-visitors.h" |
| 24 | |
| 25 | static |
| 26 | int set_int_field_class_meaning_by_name(struct ctf_field_class *fc, |
| 27 | const char *field_name, const char *id_name, |
| 28 | enum ctf_field_class_meaning meaning) |
| 29 | { |
| 30 | int ret = 0; |
| 31 | uint64_t i; |
| 32 | |
| 33 | if (!fc) { |
| 34 | goto end; |
| 35 | } |
| 36 | |
| 37 | switch (fc->type) { |
| 38 | case CTF_FIELD_CLASS_TYPE_INT: |
| 39 | case CTF_FIELD_CLASS_TYPE_ENUM: |
| 40 | { |
| 41 | struct ctf_field_class_int *int_fc = (void *) fc; |
| 42 | |
| 43 | if (field_name && strcmp(field_name, id_name) == 0) { |
| 44 | int_fc->meaning = meaning; |
| 45 | } |
| 46 | |
| 47 | break; |
| 48 | } |
| 49 | case CTF_FIELD_CLASS_TYPE_STRUCT: |
| 50 | { |
| 51 | struct ctf_field_class_struct *struct_fc = (void *) fc; |
| 52 | |
| 53 | for (i = 0; i < struct_fc->members->len; i++) { |
| 54 | struct ctf_named_field_class *named_fc = |
| 55 | ctf_field_class_struct_borrow_member_by_index( |
| 56 | struct_fc, i); |
| 57 | |
| 58 | ret = set_int_field_class_meaning_by_name(named_fc->fc, |
| 59 | named_fc->name->str, id_name, meaning); |
| 60 | if (ret) { |
| 61 | goto end; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | break; |
| 66 | } |
| 67 | case CTF_FIELD_CLASS_TYPE_VARIANT: |
| 68 | { |
| 69 | struct ctf_field_class_variant *var_fc = (void *) fc; |
| 70 | |
| 71 | for (i = 0; i < var_fc->options->len; i++) { |
| 72 | struct ctf_named_field_class *named_fc = |
| 73 | ctf_field_class_variant_borrow_option_by_index( |
| 74 | var_fc, i); |
| 75 | |
| 76 | ret = set_int_field_class_meaning_by_name(named_fc->fc, |
| 77 | NULL, id_name, meaning); |
| 78 | if (ret) { |
| 79 | goto end; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | break; |
| 84 | } |
| 85 | case CTF_FIELD_CLASS_TYPE_ARRAY: |
| 86 | case CTF_FIELD_CLASS_TYPE_SEQUENCE: |
| 87 | { |
| 88 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
| 89 | |
| 90 | ret = set_int_field_class_meaning_by_name(array_fc->elem_fc, |
| 91 | NULL, id_name, meaning); |
| 92 | if (ret) { |
| 93 | goto end; |
| 94 | } |
| 95 | |
| 96 | break; |
| 97 | } |
| 98 | default: |
| 99 | break; |
| 100 | } |
| 101 | |
| 102 | end: |
| 103 | return ret; |
| 104 | } |
| 105 | |
| 106 | static |
| 107 | int update_stream_class_meanings(struct ctf_stream_class *sc) |
| 108 | { |
| 109 | int ret = 0; |
| 110 | struct ctf_field_class_int *int_fc; |
| 111 | uint64_t i; |
| 112 | |
| 113 | if (!sc->is_translated) { |
| 114 | if (sc->packet_context_fc) { |
| 115 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 116 | (void *) sc->packet_context_fc, "timestamp_begin"); |
| 117 | if (int_fc) { |
| 118 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME; |
| 119 | } |
| 120 | |
| 121 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 122 | (void *) sc->packet_context_fc, "timestamp_end"); |
| 123 | if (int_fc) { |
| 124 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_PACKET_END_TIME; |
| 125 | |
| 126 | /* |
| 127 | * Remove mapped clock class to avoid updating |
| 128 | * the clock immediately when decoding. |
| 129 | */ |
| 130 | int_fc->mapped_clock_class = NULL; |
| 131 | } |
| 132 | |
| 133 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 134 | (void *) sc->packet_context_fc, "events_discarded"); |
| 135 | if (int_fc) { |
| 136 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT; |
| 137 | } |
| 138 | |
| 139 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 140 | (void *) sc->packet_context_fc, "packet_seq_num"); |
| 141 | if (int_fc) { |
| 142 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT; |
| 143 | |
| 144 | } |
| 145 | |
| 146 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 147 | (void *) sc->packet_context_fc, "packet_size"); |
| 148 | if (int_fc) { |
| 149 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE; |
| 150 | } |
| 151 | |
| 152 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 153 | (void *) sc->packet_context_fc, "content_size"); |
| 154 | if (int_fc) { |
| 155 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE; |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | if (sc->event_header_fc) { |
| 160 | ret = set_int_field_class_meaning_by_name( |
| 161 | sc->event_header_fc, NULL, "id", |
| 162 | CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID); |
| 163 | if (ret) { |
| 164 | goto end; |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | for (i = 0; i < sc->event_classes->len; i++) { |
| 170 | struct ctf_event_class *ec = sc->event_classes->pdata[i]; |
| 171 | |
| 172 | if (ec->is_translated) { |
| 173 | continue; |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | end: |
| 178 | return ret; |
| 179 | } |
| 180 | |
| 181 | BT_HIDDEN |
| 182 | int ctf_trace_class_update_meanings(struct ctf_trace_class *ctf_tc) |
| 183 | { |
| 184 | int ret = 0; |
| 185 | struct ctf_field_class_int *int_fc; |
| 186 | struct ctf_named_field_class *named_fc; |
| 187 | uint64_t i; |
| 188 | |
| 189 | if (!ctf_tc->is_translated && ctf_tc->packet_header_fc) { |
| 190 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 191 | (void *) ctf_tc->packet_header_fc, "magic"); |
| 192 | if (int_fc) { |
| 193 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_MAGIC; |
| 194 | } |
| 195 | |
| 196 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 197 | (void *) ctf_tc->packet_header_fc, "stream_id"); |
| 198 | if (int_fc) { |
| 199 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID; |
| 200 | } |
| 201 | |
| 202 | int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name( |
| 203 | (void *) ctf_tc->packet_header_fc, |
| 204 | "stream_instance_id"); |
| 205 | if (int_fc) { |
| 206 | int_fc->meaning = CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID; |
| 207 | } |
| 208 | |
| 209 | named_fc = ctf_field_class_struct_borrow_member_by_name( |
| 210 | (void *) ctf_tc->packet_header_fc, "uuid"); |
| 211 | if (named_fc && named_fc->fc->type == CTF_FIELD_CLASS_TYPE_ARRAY) { |
| 212 | struct ctf_field_class_array *array_fc = |
| 213 | (void *) named_fc->fc; |
| 214 | |
| 215 | array_fc->meaning = CTF_FIELD_CLASS_MEANING_UUID; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | for (i = 0; i < ctf_tc->stream_classes->len; i++) { |
| 220 | ret = update_stream_class_meanings( |
| 221 | ctf_tc->stream_classes->pdata[i]); |
| 222 | if (ret) { |
| 223 | goto end; |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | end: |
| 228 | return ret; |
| 229 | } |