lib: make public reference count functions have strict types
[babeltrace.git] / include / babeltrace / graph / component-class-const.h
index 9cad4c8ef71176309e0d829812bb224015f6433e..59dba54ca4387da7d5fe22a6afb1d8fe4a05e897 100644 (file)
@@ -2,6 +2,7 @@
 #define BABELTRACE_GRAPH_COMPONENT_CLASS_CONST_H
 
 /*
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
  * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -74,6 +75,25 @@ bt_bool bt_component_class_is_sink(
                BT_COMPONENT_CLASS_TYPE_SINK;
 }
 
+extern void bt_component_class_get_ref(
+               const struct bt_component_class *component_class);
+
+extern void bt_component_class_put_ref(
+               const struct bt_component_class *component_class);
+
+#define BT_COMPONENT_CLASS_PUT_REF_AND_RESET(_var)     \
+       do {                                            \
+               bt_component_class_put_ref(_var);       \
+               (_var) = NULL;                          \
+       } while (0)
+
+#define BT_COMPONENT_CLASS_MOVE_REF(_var_dst, _var_src)        \
+       do {                                            \
+               bt_component_class_put_ref(_var_dst);   \
+               (_var_dst) = (_var_src);                \
+               (_var_src) = NULL;                      \
+       } while (0)
+
 #ifdef __cplusplus
 }
 #endif
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