src/lib/trace-ir/trace.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
   5  * Copyright 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   6  */
   7
   8 #ifndef BABELTRACE_TRACE_IR_TRACE_INTERNAL_H
   9 #define BABELTRACE_TRACE_IR_TRACE_INTERNAL_H
  10
  11 #include "lib/assert-pre.h"
  12 #include <babeltrace2/trace-ir/trace.h>
  13 #include <babeltrace2/trace-ir/field-class.h>
  14 #include <babeltrace2/trace-ir/field.h>
  15 #include "lib/object.h"
  16 #include "lib/object-pool.h"
  17 #include "common/macros.h"
  18 #include <babeltrace2/value.h>
  19 #include <babeltrace2/types.h>
  20 #include <glib.h>
  21 #include <stdbool.h>
  22 #include <sys/types.h>
  23 #include "common/uuid.h"
  24
  25 #include "attributes.h"
  26 #include "clock-class.h"
  27 #include "stream-class.h"
  28 #include "trace-class.h"
  29
  30 struct bt_trace {
  31         struct bt_object base;
  32
  33         /* Owned by this */
  34         struct bt_value *user_attributes;
  35
  36         /* Owned by this */
  37         struct bt_trace_class *class;
  38
  39         struct {
  40                 GString *str;
  41
  42                 /* NULL or `str->str` above */
  43                 const char *value;
  44         } name;
  45
  46         struct {
  47                 bt_uuid_t uuid;
  48
  49                 /* NULL or `uuid` above */
  50                 bt_uuid value;
  51         } uuid;
  52
  53         struct bt_value *environment;
  54
  55         /* Array of `struct bt_stream *` */
  56         GPtrArray *streams;
  57
  58         /*
  59          * Stream class (weak, owned by owned trace class) to number of
  60          * instantiated streams, used to automatically assign stream IDs
  61          * per stream class within this trace.
  62          */
  63         GHashTable *stream_classes_stream_count;
  64
  65         GArray *destruction_listeners;
  66         bool frozen;
  67 };
  68
  69 BT_HIDDEN
  70 void _bt_trace_freeze(const struct bt_trace *trace);
  71
  72 #ifdef BT_DEV_MODE
  73 # define bt_trace_freeze                _bt_trace_freeze
  74 #else
  75 # define bt_trace_freeze(_trace)
  76 #endif
  77
  78 BT_HIDDEN
  79 void bt_trace_add_stream(struct bt_trace *trace, struct bt_stream *stream);
  80
  81 BT_HIDDEN
  82 uint64_t bt_trace_get_automatic_stream_id(const struct bt_trace *trace,
  83                 const struct bt_stream_class *stream_class);
  84
  85 #endif /* BABELTRACE_TRACE_IR_TRACE_INTERNAL_H */