| 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 | #define BT_LOG_TAG "PLUGIN/CTF/META/UPDATE-VALUE-STORING-INDEXES" |
| 16 | #include "logging.h" |
| 17 | |
| 18 | #include <babeltrace2/babeltrace.h> |
| 19 | #include "common/macros.h" |
| 20 | #include "common/assert.h" |
| 21 | #include <glib.h> |
| 22 | #include <stdint.h> |
| 23 | #include <string.h> |
| 24 | #include <inttypes.h> |
| 25 | |
| 26 | #include "ctf-meta-visitors.h" |
| 27 | |
| 28 | static |
| 29 | int update_field_class_stored_value_index(struct ctf_field_class *fc, |
| 30 | struct ctf_trace_class *tc, |
| 31 | struct ctf_stream_class *sc, |
| 32 | struct ctf_event_class *ec) |
| 33 | { |
| 34 | int ret = 0; |
| 35 | uint64_t i; |
| 36 | struct ctf_field_path *field_path = NULL; |
| 37 | struct ctf_field_class_int *tgt_fc = NULL; |
| 38 | uint64_t *stored_value_index = NULL; |
| 39 | |
| 40 | if (!fc) { |
| 41 | goto end; |
| 42 | } |
| 43 | |
| 44 | switch (fc->type) { |
| 45 | case CTF_FIELD_CLASS_TYPE_VARIANT: |
| 46 | { |
| 47 | struct ctf_field_class_variant *var_fc = (void *) fc; |
| 48 | |
| 49 | field_path = &var_fc->tag_path; |
| 50 | stored_value_index = &var_fc->stored_tag_index; |
| 51 | tgt_fc = (void *) var_fc->tag_fc; |
| 52 | break; |
| 53 | } |
| 54 | case CTF_FIELD_CLASS_TYPE_SEQUENCE: |
| 55 | { |
| 56 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
| 57 | |
| 58 | field_path = &seq_fc->length_path; |
| 59 | stored_value_index = &seq_fc->stored_length_index; |
| 60 | tgt_fc = seq_fc->length_fc; |
| 61 | break; |
| 62 | } |
| 63 | default: |
| 64 | break; |
| 65 | } |
| 66 | |
| 67 | if (field_path) { |
| 68 | BT_ASSERT(tgt_fc); |
| 69 | BT_ASSERT(tgt_fc->base.base.type == CTF_FIELD_CLASS_TYPE_INT || |
| 70 | tgt_fc->base.base.type == CTF_FIELD_CLASS_TYPE_ENUM); |
| 71 | if (tgt_fc->storing_index >= 0) { |
| 72 | /* Already storing its value */ |
| 73 | *stored_value_index = (uint64_t) tgt_fc->storing_index; |
| 74 | } else { |
| 75 | /* Not storing its value: allocate new index */ |
| 76 | tgt_fc->storing_index = tc->stored_value_count; |
| 77 | *stored_value_index = (uint64_t) tgt_fc->storing_index; |
| 78 | tc->stored_value_count++; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | switch (fc->type) { |
| 83 | case CTF_FIELD_CLASS_TYPE_STRUCT: |
| 84 | { |
| 85 | struct ctf_field_class_struct *struct_fc = (void *) fc; |
| 86 | |
| 87 | for (i = 0; i < struct_fc->members->len; i++) { |
| 88 | struct ctf_named_field_class *named_fc = |
| 89 | ctf_field_class_struct_borrow_member_by_index( |
| 90 | struct_fc, i); |
| 91 | |
| 92 | ret = update_field_class_stored_value_index(named_fc->fc, |
| 93 | tc, sc, ec); |
| 94 | if (ret) { |
| 95 | goto end; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | break; |
| 100 | } |
| 101 | case CTF_FIELD_CLASS_TYPE_VARIANT: |
| 102 | { |
| 103 | struct ctf_field_class_variant *var_fc = (void *) fc; |
| 104 | |
| 105 | for (i = 0; i < var_fc->options->len; i++) { |
| 106 | struct ctf_named_field_class *named_fc = |
| 107 | ctf_field_class_variant_borrow_option_by_index( |
| 108 | var_fc, i); |
| 109 | |
| 110 | ret = update_field_class_stored_value_index(named_fc->fc, |
| 111 | tc, sc, ec); |
| 112 | if (ret) { |
| 113 | goto end; |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | break; |
| 118 | } |
| 119 | case CTF_FIELD_CLASS_TYPE_ARRAY: |
| 120 | case CTF_FIELD_CLASS_TYPE_SEQUENCE: |
| 121 | { |
| 122 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
| 123 | |
| 124 | ret = update_field_class_stored_value_index(array_fc->elem_fc, |
| 125 | tc, sc, ec); |
| 126 | if (ret) { |
| 127 | goto end; |
| 128 | } |
| 129 | |
| 130 | break; |
| 131 | } |
| 132 | default: |
| 133 | break; |
| 134 | } |
| 135 | |
| 136 | end: |
| 137 | return ret; |
| 138 | } |
| 139 | |
| 140 | BT_HIDDEN |
| 141 | int ctf_trace_class_update_value_storing_indexes(struct ctf_trace_class *ctf_tc) |
| 142 | { |
| 143 | uint64_t i; |
| 144 | |
| 145 | if (!ctf_tc->is_translated) { |
| 146 | update_field_class_stored_value_index( |
| 147 | ctf_tc->packet_header_fc, ctf_tc, NULL, NULL); |
| 148 | } |
| 149 | |
| 150 | for (i = 0; i < ctf_tc->stream_classes->len; i++) { |
| 151 | uint64_t j; |
| 152 | struct ctf_stream_class *sc = ctf_tc->stream_classes->pdata[i]; |
| 153 | |
| 154 | if (!sc->is_translated) { |
| 155 | update_field_class_stored_value_index(sc->packet_context_fc, |
| 156 | ctf_tc, sc, NULL); |
| 157 | update_field_class_stored_value_index(sc->event_header_fc, |
| 158 | ctf_tc, sc, NULL); |
| 159 | update_field_class_stored_value_index( |
| 160 | sc->event_common_context_fc, ctf_tc, sc, NULL); |
| 161 | } |
| 162 | |
| 163 | for (j = 0; j < sc->event_classes->len; j++) { |
| 164 | struct ctf_event_class *ec = |
| 165 | sc->event_classes->pdata[j]; |
| 166 | |
| 167 | if (!ec->is_translated) { |
| 168 | update_field_class_stored_value_index( |
| 169 | ec->spec_context_fc, ctf_tc, sc, ec); |
| 170 | update_field_class_stored_value_index( |
| 171 | ec->payload_fc, ctf_tc, sc, ec); |
| 172 | } |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | return 0; |
| 177 | } |