lib: make public reference count functions have strict types

[babeltrace.git] / include / babeltrace / graph / port-const.h

diff --git a/include/babeltrace/graph/port-const.h b/include/babeltrace/graph/port-const.h
index eb3e9329dfd3a6c818beeaa17a96544ed31a78cf..826ab02b034a456589e2807d42c798cc792b87fc 100644 (file)
--- a/include/babeltrace/graph/port-const.h
+++ b/include/babeltrace/graph/port-const.h
@@ -2,10 +2,9 @@
 #define BABELTRACE_GRAPH_PORT_CONST_H
 
 /*
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
  * Copyright 2017 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
@@ -67,6 +66,23 @@ bt_bool bt_port_is_output(const struct bt_port *port)
        return bt_port_get_type(port) == BT_PORT_TYPE_OUTPUT;
 }
 
+extern void bt_port_get_ref(const struct bt_port *port);
+
+extern void bt_port_put_ref(const struct bt_port *port);
+
+#define BT_PORT_PUT_REF_AND_RESET(_var)                \
+       do {                                    \
+               bt_port_put_ref(_var);          \
+               (_var) = NULL;                  \
+       } while (0)
+
+#define BT_PORT_MOVE_REF(_var_dst, _var_src)   \
+       do {                                    \
+               bt_port_put_ref(_var_dst);      \
+               (_var_dst) = (_var_src);        \
+               (_var_src) = NULL;              \
+       } while (0)
+
 #ifdef __cplusplus
 }
 #endif