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 <babeltrace2/trace-ir/trace.h>
  12 #include <babeltrace2/trace-ir/field-class.h>
  13 #include <babeltrace2/trace-ir/field.h>
  14 #include "lib/object.h"
  15 #include <babeltrace2/value.h>
  16 #include <babeltrace2/types.h>
  17 #include <glib.h>
  18 #include <stdbool.h>
  19 #include <sys/types.h>
  20 #include "common/uuid.h"
  21
  22 #include "stream-class.h"
  23 #include "trace-class.h"
  24
  25 struct bt_trace {
  26         struct bt_object base;
  27
  28         /* Owned by this */
  29         struct bt_value *user_attributes;
  30
  31         /* Owned by this */
  32         struct bt_trace_class *class;
  33
  34         struct {
  35                 GString *str;
  36
  37                 /* NULL or `str->str` above */
  38                 const char *value;
  39         } name;
  40
  41         struct {
  42                 bt_uuid_t uuid;
  43
  44                 /* NULL or `uuid` above */
  45                 bt_uuid value;
  46         } uuid;
  47
  48         struct bt_value *environment;
  49
  50         /* Array of `struct bt_stream *` */
  51         GPtrArray *streams;
  52
  53         /*
  54          * Stream class (weak, owned by owned trace class) to number of
  55          * instantiated streams, used to automatically assign stream IDs
  56          * per stream class within this trace.
  57          */
  58         GHashTable *stream_classes_stream_count;
  59
  60         GArray *destruction_listeners;
  61         bool frozen;
  62 };
  63
  64 void _bt_trace_freeze(const struct bt_trace *trace);
  65
  66 #ifdef BT_DEV_MODE
  67 # define bt_trace_freeze                _bt_trace_freeze
  68 #else
  69 # define bt_trace_freeze(_trace)
  70 #endif
  71
  72 void bt_trace_add_stream(struct bt_trace *trace, struct bt_stream *stream);
  73
  74 uint64_t bt_trace_get_automatic_stream_id(const struct bt_trace *trace,
  75                 const struct bt_stream_class *stream_class);
  76
  77 #endif /* BABELTRACE_TRACE_IR_TRACE_INTERNAL_H */