include/babeltrace/trace-ir/trace-const.h

   1 #ifndef BABELTRACE_TRACE_IR_TRACE_CONST_H
   2 #define BABELTRACE_TRACE_IR_TRACE_CONST_H
   3
   4 /*
   5  * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
   6  * Copyright 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24  * SOFTWARE.
  25  *
  26  * The Common Trace Format (CTF) Specification is available at
  27  * http://www.efficios.com/ctf
  28  */
  29
  30 /*
  31  * For bt_bool, bt_uuid, bt_trace, bt_stream, bt_stream_class,
  32  * bt_field_class, bt_value
  33  */
  34 #include <babeltrace/types.h>
  35
  36 #include <stdint.h>
  37
  38 #ifdef __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 typedef enum bt_trace_status {
  43         BT_TRACE_STATUS_OK = 0,
  44         BT_TRACE_STATUS_NOMEM = -12,
  45 } bt_trace_status;
  46
  47 typedef void (* bt_trace_destruction_listener_func)(
  48                 const bt_trace *trace, void *data);
  49
  50 extern const bt_trace_class *bt_trace_borrow_class_const(
  51                 const bt_trace *trace);
  52
  53 extern const char *bt_trace_get_name(const bt_trace *trace);
  54
  55 extern uint64_t bt_trace_get_stream_count(const bt_trace *trace);
  56
  57 extern const bt_stream *bt_trace_borrow_stream_by_index_const(
  58                 const bt_trace *trace, uint64_t index);
  59
  60 extern const bt_stream *bt_trace_borrow_stream_by_id_const(
  61                 const bt_trace *trace, uint64_t id);
  62
  63 extern bt_trace_status bt_trace_add_destruction_listener(
  64                 const bt_trace *trace,
  65                 bt_trace_destruction_listener_func listener,
  66                 void *data, uint64_t *listener_id);
  67
  68 extern bt_trace_status bt_trace_remove_destruction_listener(
  69                 const bt_trace *trace, uint64_t listener_id);
  70
  71 extern void bt_trace_get_ref(const bt_trace *trace);
  72
  73 extern void bt_trace_put_ref(const bt_trace *trace);
  74
  75 #define BT_TRACE_PUT_REF_AND_RESET(_var)                \
  76         do {                                            \
  77                 bt_trace_put_ref(_var);                 \
  78                 (_var) = NULL;                          \
  79         } while (0)
  80
  81 #define BT_TRACE_MOVE_REF(_var_dst, _var_src)           \
  82         do {                                            \
  83                 bt_trace_put_ref(_var_dst);             \
  84                 (_var_dst) = (_var_src);                \
  85                 (_var_src) = NULL;                      \
  86         } while (0)
  87
  88 #ifdef __cplusplus
  89 }
  90 #endif
  91
  92 #endif /* BABELTRACE_TRACE_IR_TRACE_CONST_H */