src/plugins/ctf/common/metadata/ctf-meta-update-stream-class-config.c

   1 /*
   2  * Copyright 2019 - 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 BT_HIDDEN
  26 int ctf_trace_class_update_stream_class_config(struct ctf_trace_class *ctf_tc)
  27 {
  28         struct ctf_field_class_int *int_fc;
  29         uint64_t i;
  30
  31         for (i = 0; i < ctf_tc->stream_classes->len; i++) {
  32                 struct ctf_stream_class *sc =
  33                         ctf_tc->stream_classes->pdata[i];
  34
  35                 if (sc->is_translated) {
  36                         continue;
  37                 }
  38
  39                 if (!sc->packet_context_fc) {
  40                         continue;
  41                 }
  42
  43                 int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name(
  44                         (void *) sc->packet_context_fc, "timestamp_begin");
  45                 if (int_fc && int_fc->meaning ==
  46                                 CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME) {
  47                         sc->packets_have_ts_begin = true;
  48                 }
  49
  50                 int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name(
  51                         (void *) sc->packet_context_fc, "timestamp_end");
  52                 if (int_fc && int_fc->meaning ==
  53                                 CTF_FIELD_CLASS_MEANING_PACKET_END_TIME) {
  54                         sc->packets_have_ts_end = true;
  55                 }
  56
  57                 int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name(
  58                         (void *) sc->packet_context_fc, "events_discarded");
  59                 if (int_fc && int_fc->meaning ==
  60                                 CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT) {
  61                         sc->has_discarded_events = true;
  62                 }
  63
  64                 sc->discarded_events_have_default_cs =
  65                         sc->has_discarded_events && sc->packets_have_ts_begin &&
  66                         sc->packets_have_ts_end;
  67                 int_fc = ctf_field_class_struct_borrow_member_int_field_class_by_name(
  68                         (void *) sc->packet_context_fc, "packet_seq_num");
  69                 if (int_fc && int_fc->meaning ==
  70                                 CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT) {
  71                         sc->has_discarded_packets = true;
  72                 }
  73
  74                 sc->discarded_packets_have_default_cs =
  75                         sc->has_discarded_packets &&
  76                         sc->packets_have_ts_begin && sc->packets_have_ts_end;
  77         }
  78
  79         return 0;
  80 }