lib: remove "unknown clock snapshot" concept

[babeltrace.git] / include / babeltrace / trace-ir / stream-const.h

diff --git a/include/babeltrace/trace-ir/stream-const.h b/include/babeltrace/trace-ir/stream-const.h
index 7d4f0e366fcfc3a2e73d7d9962d6649480084b42..875b9ddfae7b79fd154ba598588ddfc81246c226 100644 (file)
--- a/include/babeltrace/trace-ir/stream-const.h
+++ b/include/babeltrace/trace-ir/stream-const.h
@@ -2,10 +2,9 @@
 #define BABELTRACE_TRACE_IR_STREAM_CONST_H
 
 /*
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
  * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -28,21 +27,46 @@
  * http://www.efficios.com/ctf
  */
 
+/* For bt_trace, bt_stream, bt_stream_class */
+#include <babeltrace/types.h>
+
 #include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-struct bt_stream;
-struct bt_stream_class;
+typedef enum bt_stream_status {
+       BT_STREAM_STATUS_OK = 0,
+       BT_STREAM_STATUS_NOMEM = -12,
+} bt_stream_status;
+
+extern const bt_stream_class *bt_stream_borrow_class_const(
+               const bt_stream *stream);
+
+extern const bt_trace *bt_stream_borrow_trace_const(
+               const bt_stream *stream);
+
+extern const char *bt_stream_get_name(const bt_stream *stream);
+
+extern uint64_t bt_stream_get_id(const bt_stream *stream);
+
+extern void bt_stream_get_ref(const bt_stream *stream);
 
-extern const struct bt_stream_class *bt_stream_borrow_class_const(
-               const struct bt_stream *stream);
+extern void bt_stream_put_ref(const bt_stream *stream);
 
-extern const char *bt_stream_get_name(const struct bt_stream *stream);
+#define BT_STREAM_PUT_REF_AND_RESET(_var)              \
+       do {                                            \
+               bt_stream_put_ref(_var);                \
+               (_var) = NULL;                          \
+       } while (0)
 
-extern uint64_t bt_stream_get_id(const struct bt_stream *stream);
+#define BT_STREAM_MOVE_REF(_var_dst, _var_src)         \
+       do {                                            \
+               bt_stream_put_ref(_var_dst);            \
+               (_var_dst) = (_var_src);                \
+               (_var_src) = NULL;                      \
+       } while (0)
 
 #ifdef __cplusplus
 }